update aws-zig to zig 0.12.0 (example will still fail)

There were significant changes to the way HTTP operates since 0.11,
effecting client operations, but more substantially, the server
implementation, which effected the test harness.

std.http.Headers was removed, including the getFirstValue function, which
needed to be replicated. On the plus side, a std.http.Header struct was
added, identical to our own structure, so I have removed out own header
in favor of stdlib.

On the Http client side, I have switched to use the fetch API. Proxy
support is built in, but we are using (mostly) our own implementation
for now, with the remaining conversion left as a TODO item. Raw URIs are
now supported, so the workaround for issue 17015 has been removed. Large
payloads should also be fixed, but this has not been tested.

The standard library now adds the content-length header
(unconditionally), which is a decision of dubious nature. I have removed
the addition of content-length, which also means it is not present
during signing. This should be allowed.

Dependency loop on fieldTransformer was fixed. This should have been
a problem on zig 0.11, but was not. This effected the API for the json
parsing, but we were not using that. At the call site, these did not
need to be specified as references.

With the http server no longer doing all the allocations it once was,
the test harness now has a lot more allocations to perform. To alleviate
the bookeeping, this was moved to an Arena allocator. The client,
which is really what is under test, continues to use the allocator
passed.

.gitea/workflows/zig-mach.yaml

@@ -0,0 +1,83 @@
+name: aws-zig mach nominated build
+run-name: ${{ github.actor }} building AWS Zig SDK
+on:
+  schedule:
+    - cron: '0 12 * * *' # noon UTC, 4AM Pacific
+  push:
+    branches:
+      - 'zig-develop*'
+env:
+  ACTIONS_RUNTIME_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  ACTIONS_RUNTIME_URL: ${{ env.GITHUB_SERVER_URL }}/api/actions_pipeline/
+jobs:
+  build-zig-nominated-mach-latest:
+    runs-on: ubuntu-latest
+    # Need to use the default container with node and all that, so we can
+    # use JS-based actions like actions/checkout@v3...
+    # container:
+    #   image: alpine:3.15.0
+    env:
+      ZIG_VERSION: mach-latest
+      ARCH: x86_64
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      # ARCH is fine, but we can't substitute directly because zig
+      # uses x86_64 instead of amd64. They also use aarch64 instead of arm64.
+      #
+      # However, arm64/linux isn't quite fully tier 1 yet, so this is more of a
+      # TODO: https://github.com/ziglang/zig/issues/2443
+      - name: Install zig
+        run: |
+          apt-get update && apt-get install -y jq
+          file="$(curl -Osw '%{filename_effective}' "$(curl -s https://machengine.org/zig/index.json |jq -r '."'${ZIG_VERSION}'"."x86_64-linux".tarball')")"
+          tar x -C /usr/local -f "${file}"
+          ln -s /usr/local/"${file%%.tar.xz}"/zig /usr/local/bin/zig
+          zig version
+      - name: Run tests
+        run: zig build test --verbose
+      # Zig package manager expects everything to be inside a directory in the archive,
+      # which it then strips out on download. So we need to shove everything inside a directory
+      # the way GitHub/Gitea does for repo archives
+      #
+      # Also, zig tar process doesn't handle gnu format for long names, nor does it seam to
+      # handle posix long name semantics cleanly either. ustar works. This
+      # should be using git archive, but we need our generated code to be part of it
+      - name: Package source code with generated models
+        run: |
+          tar -czf ${{ runner.temp }}/${{ github.sha }}-with-models.tar.gz \
+            --format ustar \
+            --exclude 'zig-*' \
+            --transform 's,^,${{ github.sha }}/,' *
+      # - name: Sign
+      #   id: sign
+      #   uses: https://git.lerch.org/lobo/action-hsm-sign@v1
+      #   with:
+      #     pin: ${{ secrets.HSM_USER_PIN }}
+      #     files: ???
+      #     public_key: 'https://emil.lerch.org/serverpublic.pem'
+      # - run: |
+      #     echo "Source 0 should be ./bar: ${{ steps.sign.outputs.SOURCE_0 }}"
+      # - run: |
+      #     echo "Signature 0 should be ./bar.sig: ${{ steps.sign.outputs.SIG_0 }}"
+      # - run: echo "URL of bar (0) is ${{ steps.sign.outputs.URL_0 }}"
+      # - run: |
+      #     echo "Source 1 should be ./foo: ${{ steps.sign.outputs.SOURCE_1 }}"
+      # - run: |
+      #     echo "Signature 1 should be ./foo.sig: ${{ steps.sign.outputs.SIG_1 }}"
+      # - run: echo "URL of foo (1) is ${{ steps.sign.outputs.URL_1 }}"
+      - name: Publish source code with generated models
+        run: |
+          curl --user ${{ github.actor }}:${{ secrets.PACKAGE_PUSH }} \
+            --upload-file ${{ runner.temp }}/${{ github.sha }}-with-models.tar.gz \
+            https://git.lerch.org/api/packages/lobo/generic/aws-sdk-with-models/${{ github.sha }}/${{ github.sha }}-with-models.tar.gz
+      - name: Build example
+        run: ( cd example && zig build ) # Make sure example builds
+      - name: Notify
+        uses: https://git.lerch.org/lobo/action-notify-ntfy@v2
+        if: always()
+        with:
+          host: ${{ secrets.NTFY_HOST }}
+          topic: ${{ secrets.NTFY_TOPIC }}
+          user: ${{ secrets.NTFY_USER }}
+          password: ${{ secrets.NTFY_PASSWORD }}

.gitea/workflows/zig-nightly.yaml

@@ -0,0 +1,81 @@
+name: aws-zig nightly build
+run-name: ${{ github.actor }} building AWS Zig SDK
+on:
+  push:
+    branches:
+      - 'zig-develop*'
+env:
+  ACTIONS_RUNTIME_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  ACTIONS_RUNTIME_URL: ${{ env.GITHUB_SERVER_URL }}/api/actions_pipeline/
+jobs:
+  build-zig-nightly:
+    runs-on: ubuntu-latest
+    # Need to use the default container with node and all that, so we can
+    # use JS-based actions like actions/checkout@v3...
+    # container:
+    #   image: alpine:3.15.0
+    env:
+      ZIG_VERSION: master
+      ARCH: x86_64
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      # ARCH is fine, but we can't substitute directly because zig
+      # uses x86_64 instead of amd64. They also use aarch64 instead of arm64.
+      #
+      # However, arm64/linux isn't quite fully tier 1 yet, so this is more of a
+      # TODO: https://github.com/ziglang/zig/issues/2443
+      - name: Install zig
+        run: |
+          apt-get update && apt-get install -y jq
+          file="$(curl -Osw '%{filename_effective}' "$(curl -s https://ziglang.org/download/index.json |jq -r '."'${ZIG_VERSION}'"."x86_64-linux".tarball')")"
+          tar x -C /usr/local -f "${file}"
+          ln -s /usr/local/"${file%%.tar.xz}"/zig /usr/local/bin/zig
+          zig version
+      - name: Run tests
+        run: zig build test --verbose
+      # Zig package manager expects everything to be inside a directory in the archive,
+      # which it then strips out on download. So we need to shove everything inside a directory
+      # the way GitHub/Gitea does for repo archives
+      #
+      # Also, zig tar process doesn't handle gnu format for long names, nor does it seam to
+      # handle posix long name semantics cleanly either. ustar works. This
+      # should be using git archive, but we need our generated code to be part of it
+      - name: Package source code with generated models
+        run: |
+          tar -czf ${{ runner.temp }}/${{ github.sha }}-with-models.tar.gz \
+            --format ustar \
+            --exclude 'zig-*' \
+            --transform 's,^,${{ github.sha }}/,' *
+      # - name: Sign
+      #   id: sign
+      #   uses: https://git.lerch.org/lobo/action-hsm-sign@v1
+      #   with:
+      #     pin: ${{ secrets.HSM_USER_PIN }}
+      #     files: ???
+      #     public_key: 'https://emil.lerch.org/serverpublic.pem'
+      # - run: |
+      #     echo "Source 0 should be ./bar: ${{ steps.sign.outputs.SOURCE_0 }}"
+      # - run: |
+      #     echo "Signature 0 should be ./bar.sig: ${{ steps.sign.outputs.SIG_0 }}"
+      # - run: echo "URL of bar (0) is ${{ steps.sign.outputs.URL_0 }}"
+      # - run: |
+      #     echo "Source 1 should be ./foo: ${{ steps.sign.outputs.SOURCE_1 }}"
+      # - run: |
+      #     echo "Signature 1 should be ./foo.sig: ${{ steps.sign.outputs.SIG_1 }}"
+      # - run: echo "URL of foo (1) is ${{ steps.sign.outputs.URL_1 }}"
+      - name: Publish source code with generated models
+        run: |
+          curl --user ${{ github.actor }}:${{ secrets.PACKAGE_PUSH }} \
+            --upload-file ${{ runner.temp }}/${{ github.sha }}-with-models.tar.gz \
+            https://git.lerch.org/api/packages/lobo/generic/aws-sdk-with-models/${{ github.sha }}/${{ github.sha }}-with-models.tar.gz
+      - name: Build example
+        run: ( cd example && zig build ) # Make sure example builds
+      - name: Notify
+        uses: https://git.lerch.org/lobo/action-notify-ntfy@v2
+        if: always()
+        with:
+          host: ${{ secrets.NTFY_HOST }}
+          topic: ${{ secrets.NTFY_TOPIC }}
+          user: ${{ secrets.NTFY_USER }}
+          password: ${{ secrets.NTFY_PASSWORD }}

.github/workflows/build.yaml

@@ -0,0 +1,31 @@
+name: AWS-Zig Build
+run-name: ${{ github.actor }} building AWS Zig SDK
+on:
+  push:
+    branches:
+      - '*'
+      - '!zig-develop*'
+jobs:
+  build-zig-0.11.0-amd64-host:
+    runs-on: ubuntu-latest
+    env:
+      ZIG_VERSION: 0.11.0
+      ARCH: x86_64
+    if: ${{ github.env.GITEA_ACTIONS != 'true' }}
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      # ARCH is fine, but we can't substitute directly because zig
+      # uses x86_64 instead of amd64. They also use aarch64 instead of arm64.
+      #
+      # However, arm64/linux isn't quite fully tier 1 yet, so this is more of a
+      # TODO: https://github.com/ziglang/zig/issues/2443
+      - name: Install zig
+        run: |
+          wget -q https://ziglang.org/download/${ZIG_VERSION}/zig-linux-${ARCH}-${ZIG_VERSION}.tar.xz
+          sudo tar x -C /usr/local -f zig-linux-${ARCH}-${ZIG_VERSION}.tar.xz
+          sudo ln -s /usr/local/zig-linux-${ARCH}-${ZIG_VERSION}/zig /usr/local/bin/zig
+      - name: Run tests
+        run: zig build test --verbose
+      - name: Build example
+        run: ( cd example && zig build ) # Make sure example builds

.github/workflows/zig-mach.yaml

@@ -0,0 +1,38 @@
+name: aws-zig mach nominated build
+run-name: ${{ github.actor }} building AWS Zig SDK
+on:
+  schedule:
+    - cron: '0 12 * * *' # noon UTC, 4AM Pacific
+  push:
+    branches:
+      - 'zig-develop*'
+jobs:
+  build-zig-nightly:
+    runs-on: ubuntu-latest
+    # Need to use the default container with node and all that, so we can
+    # use JS-based actions like actions/checkout@v3...
+    # container:
+    #   image: alpine:3.15.0
+    env:
+      ZIG_VERSION: mach-latest
+      ARCH: x86_64
+    if: ${{ github.env.GITEA_ACTIONS != 'true' }}
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      # ARCH is fine, but we can't substitute directly because zig
+      # uses x86_64 instead of amd64. They also use aarch64 instead of arm64.
+      #
+      # However, arm64/linux isn't quite fully tier 1 yet, so this is more of a
+      # TODO: https://github.com/ziglang/zig/issues/2443
+      - name: Install zig
+        run: |
+          apt-get update && apt-get install -y jq
+          file="$(curl -Osw '%{filename_effective}' "$(curl -s https://machengine.org/zig/index.json |jq -r '."'${ZIG_VERSION}'"."x86_64-linux".tarball')")"
+          sudo tar x -C /usr/local -f "${file}"
+          sudo ln -s /usr/local/"${file%%.tar.xz}"/zig /usr/local/bin/zig
+          zig version
+      - name: Run tests
+        run: zig build test --verbose
+      - name: Build example
+        run: ( cd example && zig build ) # Make sure example builds

.github/workflows/zig-nightly.yaml

@@ -0,0 +1,36 @@
+name: aws-zig nightly build
+run-name: ${{ github.actor }} building AWS Zig SDK
+on:
+  push:
+    branches:
+      - 'zig-develop*'
+jobs:
+  build-zig-nightly:
+    runs-on: ubuntu-latest
+    # Need to use the default container with node and all that, so we can
+    # use JS-based actions like actions/checkout@v3...
+    # container:
+    #   image: alpine:3.15.0
+    env:
+      ZIG_VERSION: master
+      ARCH: x86_64
+    if: ${{ github.env.GITEA_ACTIONS != 'true' }}
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      # ARCH is fine, but we can't substitute directly because zig
+      # uses x86_64 instead of amd64. They also use aarch64 instead of arm64.
+      #
+      # However, arm64/linux isn't quite fully tier 1 yet, so this is more of a
+      # TODO: https://github.com/ziglang/zig/issues/2443
+      - name: Install zig
+        run: |
+          apt-get update && apt-get install -y jq
+          file="$(curl -Osw '%{filename_effective}' "$(curl -s https://ziglang.org/download/index.json |jq -r '."'${ZIG_VERSION}'"."x86_64-linux".tarball')")"
+          sudo tar x -C /usr/local -f "${file}"
+          sudo ln -s /usr/local/"${file%%.tar.xz}"/zig /usr/local/bin/zig
+          zig version
+      - name: Run tests
+        run: zig build test --verbose
+      - name: Build example
+        run: ( cd example && zig build ) # Make sure example builds

Package.zig

@@ -1,521 +0,0 @@
-const builtin = @import("builtin");
-const std = @import("std");
-const testing = std.testing;
-const Hasher = @import("codegen/src/Hasher.zig");
-
-/// This is 128 bits - Even with 2^54 cache entries, the probably of a collision would be under 10^-6
-const bin_digest_len = 16;
-const hex_digest_len = bin_digest_len * 2;
-
-const Package = @This();
-
-root_src_directory: std.Build.Cache.Directory,
-
-/// Whether to free `root_src_directory` on `destroy`.
-root_src_directory_owned: bool = false,
-allocator: std.mem.Allocator,
-
-pub const Dependency = struct {
-    url: []const u8,
-    hash: ?[]const u8,
-};
-
-pub fn deinit(self: *Package) void {
-    if (self.root_src_directory_owned)
-        self.root_src_directory.closeAndFree(self.allocator);
-}
-
-pub fn fetchOneAndUnpack(
-    allocator: std.mem.Allocator,
-    cache_directory: []const u8, // directory to store things
-    dep: Dependency, // thing to download
-) !*Package {
-    var http_client: std.http.Client = .{ .allocator = allocator };
-    defer http_client.deinit();
-
-    const global_cache_directory: std.Build.Cache.Directory = .{
-        .handle = try std.fs.cwd().makeOpenPath(cache_directory, .{}),
-        .path = cache_directory,
-    };
-    var thread_pool: std.Thread.Pool = undefined;
-    try thread_pool.init(.{ .allocator = allocator });
-    defer thread_pool.deinit();
-    var progress: std.Progress = .{ .dont_print_on_dumb = true };
-    const root_prog_node = progress.start("Fetch Packages", 0);
-    defer root_prog_node.end();
-    return try fetchAndUnpack(
-        &thread_pool,
-        &http_client,
-        global_cache_directory,
-        dep,
-        dep.url,
-        root_prog_node,
-    );
-}
-
-pub fn fetchAndUnpack(
-    thread_pool: *std.Thread.Pool, // thread pool for hashing things in parallel
-    http_client: *std.http.Client, // client to download stuff
-    global_cache_directory: std.Build.Cache.Directory, // directory to store things
-    dep: Dependency, // thing to download
-    fqn: []const u8, // used as name for thing downloaded
-    root_prog_node: *std.Progress.Node, // used for outputting to terminal
-) !*Package {
-    const gpa = http_client.allocator;
-    const s = std.fs.path.sep_str;
-
-    // Check if the expected_hash is already present in the global package
-    // cache, and thereby avoid both fetching and unpacking.
-    if (dep.hash) |h| cached: {
-        const hex_digest = h[0..Hasher.hex_multihash_len];
-        const pkg_dir_sub_path = "p" ++ s ++ hex_digest;
-
-        const build_root = try global_cache_directory.join(gpa, &.{pkg_dir_sub_path});
-        errdefer gpa.free(build_root);
-
-        var pkg_dir = global_cache_directory.handle.openDir(pkg_dir_sub_path, .{}) catch |err| switch (err) {
-            error.FileNotFound => break :cached,
-            else => |e| return e,
-        };
-        errdefer pkg_dir.close();
-
-        root_prog_node.completeOne();
-
-        const ptr = try gpa.create(Package);
-        errdefer gpa.destroy(ptr);
-
-        ptr.* = .{
-            .root_src_directory = .{
-                .path = build_root, // TODO: This leaks memory somehow (should be cleaned in deinit()
-                .handle = pkg_dir,
-            },
-            .root_src_directory_owned = true,
-            .allocator = gpa,
-        };
-
-        return ptr;
-    }
-
-    var pkg_prog_node = root_prog_node.start(fqn, 0);
-    defer pkg_prog_node.end();
-    pkg_prog_node.activate();
-    pkg_prog_node.context.refresh();
-
-    const uri = try std.Uri.parse(dep.url);
-
-    const rand_int = std.crypto.random.int(u64);
-    const tmp_dir_sub_path = "tmp" ++ s ++ Hasher.hex64(rand_int);
-
-    const actual_hash = a: {
-        var tmp_directory: std.Build.Cache.Directory = d: {
-            const path = try global_cache_directory.join(gpa, &.{tmp_dir_sub_path});
-            errdefer gpa.free(path);
-
-            const iterable_dir = try global_cache_directory.handle.makeOpenPathIterable(tmp_dir_sub_path, .{});
-            errdefer iterable_dir.close();
-
-            break :d .{
-                .path = path,
-                .handle = iterable_dir.dir,
-            };
-        };
-        defer tmp_directory.closeAndFree(gpa);
-
-        var h = std.http.Headers{ .allocator = gpa };
-        defer h.deinit();
-
-        var req = try http_client.request(.GET, uri, h, .{});
-        defer req.deinit();
-
-        try req.start();
-        try req.wait();
-
-        if (req.response.status != .ok) {
-            std.log.err("Expected response status '200 OK' got '{} {s}'", .{
-                @intFromEnum(req.response.status),
-                req.response.status.phrase() orelse "",
-            });
-            return error.UnexpectedResponseStatus;
-        }
-
-        const content_type = req.response.headers.getFirstValue("Content-Type") orelse
-            return error.MissingContentTypeHeader;
-
-        var prog_reader: ProgressReader(std.http.Client.Request.Reader) = .{
-            .child_reader = req.reader(),
-            .prog_node = &pkg_prog_node,
-            .unit = if (req.response.content_length) |content_length| unit: {
-                const kib = content_length / 1024;
-                const mib = kib / 1024;
-                if (mib > 0) {
-                    pkg_prog_node.setEstimatedTotalItems(@intCast(mib));
-                    pkg_prog_node.setUnit("MiB");
-                    break :unit .mib;
-                } else {
-                    pkg_prog_node.setEstimatedTotalItems(@intCast(@max(1, kib)));
-                    pkg_prog_node.setUnit("KiB");
-                    break :unit .kib;
-                }
-            } else .any,
-        };
-        pkg_prog_node.context.refresh();
-
-        if (std.ascii.eqlIgnoreCase(content_type, "application/gzip") or
-            std.ascii.eqlIgnoreCase(content_type, "application/x-gzip") or
-            std.ascii.eqlIgnoreCase(content_type, "application/tar+gzip"))
-        {
-            // I observed the gzip stream to read 1 byte at a time, so I am using a
-            // buffered reader on the front of it.
-            try unpackTarball(gpa, prog_reader.reader(), tmp_directory.handle, std.compress.gzip);
-        } else if (std.ascii.eqlIgnoreCase(content_type, "application/x-xz")) {
-            // I have not checked what buffer sizes the xz decompression implementation uses
-            // by default, so the same logic applies for buffering the reader as for gzip.
-            try unpackTarball(gpa, prog_reader.reader(), tmp_directory.handle, std.compress.xz);
-        } else if (std.ascii.eqlIgnoreCase(content_type, "application/octet-stream")) {
-            // support gitlab tarball urls such as https://gitlab.com/<namespace>/<project>/-/archive/<sha>/<project>-<sha>.tar.gz
-            // whose content-disposition header is: 'attachment; filename="<project>-<sha>.tar.gz"'
-            const content_disposition = req.response.headers.getFirstValue("Content-Disposition") orelse
-                return error.@"Missing 'Content-Disposition' header for Content-Type=application/octet-stream";
-            if (isTarAttachment(content_disposition)) {
-                try unpackTarball(gpa, prog_reader.reader(), tmp_directory.handle, std.compress.gzip);
-            } else {
-                std.log.err("Unsupported 'Content-Disposition' header value: '{s}' for Content-Type=application/octet-stream", .{content_disposition});
-                return error.UnsupportedContentDispositionHeader;
-            }
-        } else {
-            std.log.err("Unsupported 'Content-Type' header value: '{s}'", .{content_type});
-            return error.UnsupportedContentTypeHeader;
-        }
-
-        // Download completed - stop showing downloaded amount as progress
-        pkg_prog_node.setEstimatedTotalItems(0);
-        pkg_prog_node.setCompletedItems(0);
-        pkg_prog_node.context.refresh();
-
-        // TODO: delete files not included in the package prior to computing the package hash.
-        // for example, if the ini file has directives to include/not include certain files,
-        // apply those rules directly to the filesystem right here. This ensures that files
-        // not protected by the hash are not present on the file system.
-
-        // TODO: raise an error for files that have illegal paths on some operating systems.
-        // For example, on Linux a path with a backslash should raise an error here.
-        // Of course, if the ignore rules above omit the file from the package, then everything
-        // is fine and no error should be raised.
-
-        break :a try Hasher.computeDirectoryHash(thread_pool, .{ .dir = tmp_directory.handle }, &.{});
-    };
-
-    const pkg_dir_sub_path = "p" ++ s ++ Hasher.hexDigest(actual_hash);
-    try renameTmpIntoCache(global_cache_directory.handle, tmp_dir_sub_path, pkg_dir_sub_path);
-
-    const actual_hex = Hasher.hexDigest(actual_hash);
-    if (dep.hash) |h| {
-        if (!std.mem.eql(u8, h, &actual_hex)) {
-            std.log.err("hash mismatch: expected: {s}, found: {s}", .{
-                h, actual_hex,
-            });
-            return error.HashMismatch;
-        }
-    } else {
-        std.log.err("No hash supplied. Expecting hash \"{s}\"", .{actual_hex});
-        return error.NoHashSupplied;
-    }
-
-    const build_root = try global_cache_directory.join(gpa, &.{pkg_dir_sub_path});
-    defer gpa.free(build_root);
-
-    const mod = try createWithDir(gpa, global_cache_directory, pkg_dir_sub_path);
-    return mod;
-}
-fn ProgressReader(comptime ReaderType: type) type {
-    return struct {
-        child_reader: ReaderType,
-        bytes_read: u64 = 0,
-        prog_node: *std.Progress.Node,
-        unit: enum {
-            kib,
-            mib,
-            any,
-        },
-
-        pub const Error = ReaderType.Error;
-        pub const Reader = std.io.Reader(*@This(), Error, read);
-
-        pub fn read(self: *@This(), buf: []u8) Error!usize {
-            const amt = try self.child_reader.read(buf);
-            self.bytes_read += amt;
-            const kib = self.bytes_read / 1024;
-            const mib = kib / 1024;
-            switch (self.unit) {
-                .kib => self.prog_node.setCompletedItems(@intCast(kib)),
-                .mib => self.prog_node.setCompletedItems(@intCast(mib)),
-                .any => {
-                    if (mib > 0) {
-                        self.prog_node.setUnit("MiB");
-                        self.prog_node.setCompletedItems(@intCast(mib));
-                    } else {
-                        self.prog_node.setUnit("KiB");
-                        self.prog_node.setCompletedItems(@intCast(kib));
-                    }
-                },
-            }
-            self.prog_node.context.maybeRefresh();
-            return amt;
-        }
-
-        pub fn reader(self: *@This()) Reader {
-            return .{ .context = self };
-        }
-    };
-}
-fn isTarAttachment(content_disposition: []const u8) bool {
-    const disposition_type_end = std.ascii.indexOfIgnoreCase(content_disposition, "attachment;") orelse return false;
-
-    var value_start = std.ascii.indexOfIgnoreCasePos(content_disposition, disposition_type_end + 1, "filename") orelse return false;
-    value_start += "filename".len;
-    if (content_disposition[value_start] == '*') {
-        value_start += 1;
-    }
-    if (content_disposition[value_start] != '=') return false;
-    value_start += 1;
-
-    var value_end = std.mem.indexOfPos(u8, content_disposition, value_start, ";") orelse content_disposition.len;
-    if (content_disposition[value_end - 1] == '\"') {
-        value_end -= 1;
-    }
-    return std.ascii.endsWithIgnoreCase(content_disposition[value_start..value_end], ".tar.gz");
-}
-fn renameTmpIntoCache(
-    cache_dir: std.fs.Dir,
-    tmp_dir_sub_path: []const u8,
-    dest_dir_sub_path: []const u8,
-) !void {
-    std.debug.assert(dest_dir_sub_path[1] == std.fs.path.sep);
-    var handled_missing_dir = false;
-    while (true) {
-        cache_dir.rename(tmp_dir_sub_path, dest_dir_sub_path) catch |err| switch (err) {
-            error.FileNotFound => {
-                if (handled_missing_dir) return err;
-                cache_dir.makeDir(dest_dir_sub_path[0..1]) catch |mkd_err| switch (mkd_err) {
-                    error.PathAlreadyExists => handled_missing_dir = true,
-                    else => |e| return e,
-                };
-                continue;
-            },
-            error.PathAlreadyExists, error.AccessDenied => {
-                // Package has been already downloaded and may already be in use on the system.
-                cache_dir.deleteTree(tmp_dir_sub_path) catch |del_err| {
-                    std.log.warn("unable to delete temp directory: {s}", .{@errorName(del_err)});
-                };
-            },
-            else => |e| return e,
-        };
-        break;
-    }
-}
-
-fn createWithDir(
-    gpa: std.mem.Allocator,
-    directory: std.Build.Cache.Directory,
-    /// Relative to `directory`. If null, means `directory` is the root src dir
-    /// and is owned externally.
-    root_src_dir_path: ?[]const u8,
-) !*Package {
-    const ptr = try gpa.create(Package);
-    errdefer gpa.destroy(ptr);
-
-    if (root_src_dir_path) |p| {
-        const owned_dir_path = try directory.join(gpa, &[1][]const u8{p});
-        errdefer gpa.free(owned_dir_path);
-
-        ptr.* = .{
-            .root_src_directory = .{
-                .path = owned_dir_path,
-                .handle = try directory.handle.openDir(p, .{}),
-            },
-            .root_src_directory_owned = true,
-            .allocator = gpa,
-        };
-    } else {
-        ptr.* = .{
-            .root_src_directory = directory,
-            .root_src_directory_owned = false,
-            .allocator = gpa,
-        };
-    }
-    return ptr;
-}
-// Create/Write a file, close it, then grab its stat.mtime timestamp.
-fn testGetCurrentFileTimestamp(dir: std.fs.Dir) !i128 {
-    const test_out_file = "test-filetimestamp.tmp";
-
-    var file = try dir.createFile(test_out_file, .{
-        .read = true,
-        .truncate = true,
-    });
-    defer {
-        file.close();
-        dir.deleteFile(test_out_file) catch {};
-    }
-
-    return (try file.stat()).mtime;
-}
-
-// These functions come from src/Package.zig, src/Manifest.zig in the compiler,
-// not the standard library
-fn unpackTarball(
-    gpa: std.mem.Allocator,
-    req_reader: anytype,
-    out_dir: std.fs.Dir,
-    comptime compression: type,
-) !void {
-    var br = std.io.bufferedReaderSize(std.crypto.tls.max_ciphertext_record_len, req_reader);
-
-    var decompress = try compression.decompress(gpa, br.reader());
-    defer decompress.deinit();
-
-    try std.tar.pipeToFileSystem(out_dir, decompress.reader(), .{
-        .strip_components = 1,
-        // TODO: we would like to set this to executable_bit_only, but two
-        // things need to happen before that:
-        // 1. the tar implementation needs to support it
-        // 2. the hashing algorithm here needs to support detecting the is_executable
-        //    bit on Windows from the ACLs (see the isExecutable function).
-        .mode_mode = .ignore,
-    });
-}
-
-test {
-    std.testing.refAllDecls(@This());
-}
-test "cache a file and recall it" {
-    if (builtin.os.tag == .wasi) {
-        // https://github.com/ziglang/zig/issues/5437
-
-        return error.SkipZigTest;
-    }
-
-    var tmp = testing.tmpDir(.{});
-    defer tmp.cleanup();
-
-    const temp_file = "test.txt";
-    const temp_file2 = "test2.txt";
-    const temp_manifest_dir = "temp_manifest_dir";
-
-    try tmp.dir.writeFile(temp_file, "Hello, world!\n");
-    try tmp.dir.writeFile(temp_file2, "yo mamma\n");
-
-    // Wait for file timestamps to tick
-
-    const initial_time = try testGetCurrentFileTimestamp(tmp.dir);
-    while ((try testGetCurrentFileTimestamp(tmp.dir)) == initial_time) {
-        std.time.sleep(1);
-    }
-
-    var digest1: [hex_digest_len]u8 = undefined;
-    var digest2: [hex_digest_len]u8 = undefined;
-
-    {
-        var cache = std.build.Cache{
-            .gpa = testing.allocator,
-            .manifest_dir = try tmp.dir.makeOpenPath(temp_manifest_dir, .{}),
-        };
-        cache.addPrefix(.{ .path = null, .handle = tmp.dir });
-        defer cache.manifest_dir.close();
-
-        {
-            var ch = cache.obtain();
-            defer ch.deinit();
-
-            ch.hash.add(true);
-            ch.hash.add(@as(u16, 1234));
-            ch.hash.addBytes("1234");
-            _ = try ch.addFile(temp_file, null);
-
-            // There should be nothing in the cache
-
-            try testing.expectEqual(false, try ch.hit());
-
-            digest1 = ch.final();
-            try ch.writeManifest();
-        }
-        {
-            var ch = cache.obtain();
-            defer ch.deinit();
-
-            ch.hash.add(true);
-            ch.hash.add(@as(u16, 1234));
-            ch.hash.addBytes("1234");
-            _ = try ch.addFile(temp_file, null);
-
-            // Cache hit! We just "built" the same file
-
-            try testing.expect(try ch.hit());
-            digest2 = ch.final();
-
-            try testing.expectEqual(false, ch.have_exclusive_lock);
-        }
-
-        try testing.expectEqual(digest1, digest2);
-    }
-}
-test "fetch and unpack" {
-    const alloc = std.testing.allocator;
-    var http_client: std.http.Client = .{ .allocator = alloc };
-    defer http_client.deinit();
-
-    const global_cache_directory: std.Build.Cache.Directory = .{
-        .handle = try std.fs.cwd().makeOpenPath("test-pkg", .{}),
-        .path = "test-pkg",
-    };
-    var thread_pool: std.Thread.Pool = undefined;
-    try thread_pool.init(.{ .allocator = alloc });
-    defer thread_pool.deinit();
-    var progress: std.Progress = .{ .dont_print_on_dumb = true };
-    const root_prog_node = progress.start("Fetch Packages", 0);
-    defer root_prog_node.end();
-    const pkg = try fetchAndUnpack(
-        &thread_pool,
-        &http_client,
-        global_cache_directory,
-        .{
-            .url = "https://github.com/aws/aws-sdk-go-v2/archive/7502ff360b1c3b79cbe117437327f6ff5fb89f65.tar.gz",
-            .hash = "1220a414719bff14c9362fb1c695e3346fa12ec2e728bae5757a57aae7738916ffd2",
-        },
-        "https://github.com/aws/aws-sdk-go-v2/archive/7502ff360b1c3b79cbe117437327f6ff5fb89f65.tar.gz",
-        root_prog_node,
-    );
-    defer alloc.destroy(pkg);
-    defer pkg.deinit();
-}
-test "fetch one and unpack" {
-    const pkg = try fetchOneAndUnpack(
-        std.testing.allocator,
-        "test-pkg",
-        .{
-            .url = "https://github.com/aws/aws-sdk-go-v2/archive/7502ff360b1c3b79cbe117437327f6ff5fb89f65.tar.gz",
-            .hash = "1220a414719bff14c9362fb1c695e3346fa12ec2e728bae5757a57aae7738916ffd2",
-        },
-    );
-    defer std.testing.allocator.destroy(pkg);
-    defer pkg.deinit();
-    try std.testing.expectEqualStrings(
-        "test-pkg/p/1220a414719bff14c9362fb1c695e3346fa12ec2e728bae5757a57aae7738916ffd2",
-        pkg.root_src_directory.path.?,
-    );
-}
-test "isTarAttachment" {
-    try std.testing.expect(isTarAttachment("attaChment; FILENAME=\"stuff.tar.gz\"; size=42"));
-    try std.testing.expect(isTarAttachment("attachment; filename*=\"stuff.tar.gz\""));
-    try std.testing.expect(isTarAttachment("ATTACHMENT; filename=\"stuff.tar.gz\""));
-    try std.testing.expect(isTarAttachment("attachment; FileName=\"stuff.tar.gz\""));
-    try std.testing.expect(isTarAttachment("attachment; FileName*=UTF-8\'\'xyz%2Fstuff.tar.gz"));
-
-    try std.testing.expect(!isTarAttachment("attachment FileName=\"stuff.tar.gz\""));
-    try std.testing.expect(!isTarAttachment("attachment; FileName=\"stuff.tar\""));
-    try std.testing.expect(!isTarAttachment("attachment; FileName\"stuff.gz\""));
-    try std.testing.expect(!isTarAttachment("attachment; size=42"));
-    try std.testing.expect(!isTarAttachment("inline; size=42"));
-    try std.testing.expect(!isTarAttachment("FileName=\"stuff.tar.gz\"; attachment;"));
-    try std.testing.expect(!isTarAttachment("FileName=\"stuff.tar.gz\";"));
-}

README.md

@@ -1,7 +1,13 @@
 AWS SDK for Zig
 ===============
 
-[![Build Status](https://actions-status.lerch.org/lobo/aws-sdk-for-zig/build)](https://git.lerch.org/lobo/aws-sdk-for-zig/actions?workflow=build.yaml&state=closed)
+[Last Mach Nominated Zig Version](https://machengine.org/about/nominated-zig/):
+
+[![Build Status: Zig 0.12.0-dev.3180+83e578a18](https://actions-status.lerch.org/lobo/aws-sdk-for-zig/zig-mach)](https://git.lerch.org/lobo/aws-sdk-for-zig/actions?workflow=zig-mach.yaml&state=closed)
+
+[Nightly Zig](https://ziglang.org/download/):
+
+[![Build Status: Zig Nightly](https://actions-status.lerch.org/lobo/aws-sdk-for-zig/zig-nightly)](https://git.lerch.org/lobo/aws-sdk-for-zig/actions?workflow=zig-nightly.yaml&state=closed)
 
 **NOTE: TLS 1.3 support is still deploying across AWS. Some services, especially S3,
         may or may not be available without a proxy, depending on the region.
@@ -11,15 +17,30 @@ Current executable size for the demo is 980k after compiling with -Doptimize=Rel
 in x86_linux, and will vary based on services used. Tested targets:
 
 * x86_64-linux
-* riscv64-linux
+* riscv64-linux\*
 * aarch64-linux
-* x86_64-windows
+* x86_64-windows\*\*
 * arm-linux
 * aarch64-macos
 * x86_64-macos
 
 Tested targets are built, but not continuously tested, by CI.
 
+\* On Zig 0.12, riscv64-linux tests take a significant time to compile (each aws.zig test takes approximately 1min, 45 seconds to compile on Intel i9 10th gen)
+
+\*\* On Zig 0.12, x86_64-windows tests have one test skipped as LLVM consumes all available RAM on the system
+
+
+Zig-Develop Branch
+------------------
+
+This branch is intended for use with the in-development version of Zig. This
+starts with 0.12.0-dev.3180+83e578a18. I will try to keep this branch up to date
+with latest, but with a special eye towards aligning with [Mach Engine's Nominated
+Zig Versions](https://machengine.org/about/nominated-zig/). As nightly zig versions
+disappear off the downloads page (and back end server), we can use the mirroring
+that the Mach Engine participates in to pull these versions.
+
 Building
 --------
 
@@ -50,7 +71,7 @@ Limitations
 
 The zig 0.11 HTTP client supports TLS 1.3 only. AWS has committed to
 [TLS 1.3 support across all services by the end of 2023](https://aws.amazon.com/blogs/security/faster-aws-cloud-connections-with-tls-1-3/),
-but a few services as of February 28, 2024 have not been upgraded, and S3 is
+but a few services as of April 1, 2024 have not been upgraded, and S3 is
 a bit intermittent. Proxy support has been added, so to get to the services that
 do not yet support TLS 1.3, you can use something like [mitmproxy](https://mitmproxy.org/)
 to proxy those requests until roll out is complete.
@@ -81,13 +102,13 @@ this point.
 
 NOTE ON S3: For me, S3 is currently intermittently available using TLS 1.3, so
 it appears deployments are in progress. The last couple days it has been
-available consistently, so I have removed it from the list.
+not been available consistently, so I have added it back to the list.
 
 ```
 data.iot
 models.lex
 opsworks
-support
+s3
 ```
 
 Dependency tree

build.zig

@@ -1,12 +1,8 @@
 const std = @import("std");
 const builtin = @import("builtin");
-const Builder = @import("std").build.Builder;
+const Builder = @import("std").Build;
-const Package = @import("Package.zig");
 
-const models_url = "https://github.com/aws/aws-sdk-go-v2/archive/58cf6509525a12d64fd826da883bfdbacbd2f00e.tar.gz";
-const models_hash: ?[]const u8 = "122017a2f3081ce83c23e0c832feb1b8b4176d507b6077f522855dc774bcf83ee315";
 const models_subdir = "codegen/sdk-codegen/aws-models/"; // note will probably not work on windows
-const models_dir = "p" ++ std.fs.path.sep_str ++ (models_hash orelse "") ++ std.fs.path.sep_str ++ models_subdir;
 
 const test_targets = [_]std.zig.CrossTarget{
     .{}, // native
@@ -18,10 +14,12 @@ const test_targets = [_]std.zig.CrossTarget{
         .cpu_arch = .aarch64,
         .os_tag = .linux,
     },
-    .{
+    // // The test executable just spins forever in LLVM using nominated zig 0.12 March 2024
-        .cpu_arch = .riscv64,
+    // // This is likely a LLVM problem unlikely to be fixed in zig 0.12
-        .os_tag = .linux,
+    // .{
-    },
+    //     .cpu_arch = .riscv64,
+    //     .os_tag = .linux,
+    // },
     .{
         .cpu_arch = .arm,
         .os_tag = .linux,
@@ -79,22 +77,18 @@ pub fn build(b: *Builder) !void {
         .optimize = optimize,
     });
     const smithy_module = smithy_dep.module("smithy");
-    exe.addModule("smithy", smithy_module); // not sure this should be here...
+    exe.root_module.addImport("smithy", smithy_module); // not sure this should be here...
 
     // Expose module to others
     _ = b.addModule("aws", .{
-        .source_file = .{ .path = "src/aws.zig" },
+        .root_source_file = .{ .path = "src/aws.zig" },
-        .dependencies = &[_]std.build.ModuleDependency{
+        .imports = &.{.{ .name = "smithy", .module = smithy_module }},
-            .{ .name = "smithy", .module = smithy_module },
-        },
     });
 
     // Expose module to others
     _ = b.addModule("aws-signing", .{
-        .source_file = .{ .path = "src/aws_signing.zig" },
+        .root_source_file = .{ .path = "src/aws_signing.zig" },
-        .dependencies = &[_]std.build.ModuleDependency{
+        .imports = &.{.{ .name = "smithy", .module = smithy_module }},
-            .{ .name = "smithy", .module = smithy_module },
-        },
     });
     // TODO: This does not work correctly due to https://github.com/ziglang/zig/issues/16354
     //
@@ -118,9 +112,6 @@ pub fn build(b: *Builder) !void {
     const run_step = b.step("run", "Run the app");
     run_step.dependOn(&run_cmd.step);
 
-    const fm = b.step("fetch", "Fetch model files");
-    var fetch_step = FetchStep.create(b, models_url, models_hash);
-    fm.dependOn(&fetch_step.step);
     const gen_step = blk: {
         const cg = b.step("gen", "Generate zig service code from smithy models");
 
@@ -128,21 +119,35 @@ pub fn build(b: *Builder) !void {
             .name = "codegen",
             .root_source_file = .{ .path = "codegen/src/main.zig" },
             // We need this generated for the host, not the real target
-            // .target = target,
+            .target = b.host,
             .optimize = if (b.verbose) .Debug else .ReleaseSafe,
         });
-        cg_exe.addModule("smithy", smithy_dep.module("smithy"));
+        cg_exe.root_module.addImport("smithy", smithy_dep.module("smithy"));
         var cg_cmd = b.addRunArtifact(cg_exe);
         cg_cmd.addArg("--models");
+        const hash = hash_blk: {
+            for (b.available_deps) |dep| {
+                const dep_name = dep.@"0";
+                const dep_hash = dep.@"1";
+                if (std.mem.eql(u8, dep_name, "models"))
+                    break :hash_blk dep_hash;
+            }
+            return error.DependencyNamedModelsNotFoundInBuildZigZon;
+        };
         cg_cmd.addArg(try std.fs.path.join(
             b.allocator,
-            &[_][]const u8{ b.global_cache_root.path.?, models_dir },
+            &[_][]const u8{
+                b.graph.global_cache_root.path.?,
+                "p",
+                hash,
+                models_subdir,
+            },
         ));
         cg_cmd.addArg("--output");
-        cg_cmd.addDirectoryArg(std.Build.FileSource.relative("src/models"));
+        cg_cmd.addDirectoryArg(b.path("src/models"));
         if (b.verbose)
             cg_cmd.addArg("--verbose");
-        cg_cmd.step.dependOn(&fetch_step.step);
+        // cg_cmd.step.dependOn(&fetch_step.step);
         // TODO: this should use zig_exe from std.Build
         // codegen should store a hash in a comment
         // this would be hash of the exe that created the file
@@ -168,15 +173,29 @@ pub fn build(b: *Builder) !void {
     // running the unit tests.
     const test_step = b.step("test", "Run unit tests");
 
+    // // Creates a step for unit testing. This only builds the test executable
+    // // but does not run it.
+    // const unit_tests = b.addTest(.{
+    //     .root_source_file = .{ .path = "src/aws.zig" },
+    //     .target = target,
+    //     .optimize = optimize,
+    // });
+    // unit_tests.root_module.addImport("smithy", smithy_dep.module("smithy"));
+    // unit_tests.step.dependOn(gen_step);
+    //
+    // const run_unit_tests = b.addRunArtifact(unit_tests);
+    // run_unit_tests.skip_foreign_checks = true;
+
+    // test_step.dependOn(&run_unit_tests.step);
     for (test_targets) |t| {
         // Creates a step for unit testing. This only builds the test executable
         // but does not run it.
         const unit_tests = b.addTest(.{
             .root_source_file = .{ .path = "src/aws.zig" },
-            .target = t,
+            .target = b.resolveTargetQuery(t),
             .optimize = optimize,
         });
-        unit_tests.addModule("smithy", smithy_dep.module("smithy"));
+        unit_tests.root_module.addImport("smithy", smithy_dep.module("smithy"));
         unit_tests.step.dependOn(gen_step);
 
         const run_unit_tests = b.addRunArtifact(unit_tests);
@@ -186,49 +205,3 @@ pub fn build(b: *Builder) !void {
     }
     b.installArtifact(exe);
 }
-const FetchStep = struct {
-    step: std.Build.Step,
-    url: []const u8,
-    hash: ?[]const u8,
-
-    pub fn create(owner: *std.Build, url: []const u8, hash: ?[]const u8) *FetchStep {
-        const fs = owner.allocator.create(FetchStep) catch @panic("OOM");
-        fs.* = .{
-            .step = std.Build.Step.init(.{
-                .id = .custom,
-                .name = "FetchStep",
-                .owner = owner,
-                .makeFn = make,
-            }),
-            .url = url,
-            .hash = hash,
-        };
-        return fs;
-    }
-
-    fn make(step: *std.Build.Step, prog_node: *std.Progress.Node) !void {
-        const b = step.owner;
-        const self = @fieldParentPtr(FetchStep, "step", step);
-
-        const alloc = b.allocator;
-        var http_client: std.http.Client = .{ .allocator = alloc };
-        defer http_client.deinit();
-
-        var thread_pool: std.Thread.Pool = undefined;
-        try thread_pool.init(.{ .allocator = alloc });
-        defer thread_pool.deinit();
-        const pkg = try Package.fetchAndUnpack(
-            &thread_pool,
-            &http_client,
-            b.global_cache_root,
-            .{
-                .url = self.url,
-                .hash = self.hash,
-            },
-            self.url,
-            prog_node,
-        );
-        defer alloc.destroy(pkg);
-        defer pkg.deinit();
-    }
-};

build.zig.zon

@@ -1,11 +1,16 @@
 .{
     .name = "aws-zig",
     .version = "0.0.1",
+    .paths = .{""},
 
     .dependencies = .{
         .smithy = .{
-            .url = "https://git.lerch.org/lobo/smithy/archive/d6b6331defdfd33f36258caf26b0b82ce794cd28.tar.gz",
+            .url = "https://git.lerch.org/lobo/smithy/archive/1e534201c4df5ea4f615faeedc69d414adbec0b1.tar.gz",
-            .hash = "1220695f5be11b7bd714f6181c60b0e590da5da7411de111ca51cacf1ea4a8169669",
+            .hash = "1220af63ae0498010004af79936cedf3fe6702f516daab77ebbd97a274eba1b42aad",
+        },
+        .models = .{
+            .url = "https://github.com/aws/aws-sdk-go-v2/archive/58cf6509525a12d64fd826da883bfdbacbd2f00e.tar.gz",
+            .hash = "122017a2f3081ce83c23e0c832feb1b8b4176d507b6077f522855dc774bcf83ee315",
         },
     },
 }

codegen/src/Hasher.zig

@@ -77,13 +77,13 @@ pub fn hex64(x: u64) [16]u8 {
     return result;
 }
 
-pub const walkerFn = *const fn (std.fs.IterableDir.Walker.WalkerEntry) bool;
+pub const walkerFn = *const fn (std.fs.Dir.Walker.Entry) bool;
 
-fn included(entry: std.fs.IterableDir.Walker.WalkerEntry) bool {
+fn included(entry: std.fs.Dir.Walker.Entry) bool {
     _ = entry;
     return true;
 }
-fn excluded(entry: std.fs.IterableDir.Walker.WalkerEntry) bool {
+fn excluded(entry: std.fs.Dir.Walker.Entry) bool {
     _ = entry;
     return false;
 }
@@ -96,7 +96,7 @@ pub const ComputeDirectoryOptions = struct {
 
 pub fn computeDirectoryHash(
     thread_pool: *std.Thread.Pool,
-    dir: std.fs.IterableDir,
+    dir: std.fs.Dir,
     options: *ComputeDirectoryOptions,
 ) ![Hash.digest_length]u8 {
     const gpa = thread_pool.allocator;
@@ -138,7 +138,7 @@ pub fn computeDirectoryHash(
                 .failure = undefined, // to be populated by the worker
             };
             wait_group.start();
-            try thread_pool.spawn(workerHashFile, .{ dir.dir, hashed_file, &wait_group });
+            try thread_pool.spawn(workerHashFile, .{ dir, hashed_file, &wait_group });
 
             try all_files.append(hashed_file);
         }
@@ -206,6 +206,6 @@ fn isExecutable(file: std.fs.File) !bool {
         return false;
     } else {
         const stat = try file.stat();
-        return (stat.mode & std.os.S.IXUSR) != 0;
+        return (stat.mode & std.posix.S.IXUSR) != 0;
     }
 }

codegen/src/main.zig

@@ -17,7 +17,7 @@ pub fn main() anyerror!void {
 
     var output_dir = std.fs.cwd();
     defer if (output_dir.fd > 0) output_dir.close();
-    var models_dir: ?std.fs.IterableDir = null;
+    var models_dir: ?std.fs.Dir = null;
     defer if (models_dir) |*m| m.close();
     for (args, 0..) |arg, i| {
         if (std.mem.eql(u8, "--help", arg) or
@@ -31,7 +31,7 @@ pub fn main() anyerror!void {
         if (std.mem.eql(u8, "--output", arg))
             output_dir = try output_dir.makeOpenPath(args[i + 1], .{});
         if (std.mem.eql(u8, "--models", arg))
-            models_dir = try std.fs.cwd().openIterableDir(args[i + 1], .{});
+            models_dir = try std.fs.cwd().openDir(args[i + 1], .{ .iterate = true });
     }
     // TODO: Seems like we should remove this in favor of a package
     try output_dir.writeFile("json.zig", json_zig);
@@ -75,7 +75,7 @@ pub fn main() anyerror!void {
             defer cwd.close();
             defer cwd.setAsCwd() catch unreachable;
 
-            try m.dir.setAsCwd();
+            try m.setAsCwd();
             try processDirectories(m, output_dir);
         }
     }
@@ -87,7 +87,7 @@ const OutputManifest = struct {
     model_dir_hash_digest: [Hasher.hex_multihash_len]u8,
     output_dir_hash_digest: [Hasher.hex_multihash_len]u8,
 };
-fn processDirectories(models_dir: std.fs.IterableDir, output_dir: std.fs.Dir) !void {
+fn processDirectories(models_dir: std.fs.Dir, output_dir: std.fs.Dir) !void {
     // Let's get ready to hash!!
     var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
@@ -131,15 +131,15 @@ fn processDirectories(models_dir: std.fs.IterableDir, output_dir: std.fs.Dir) !v
 }
 
 var model_digest: ?[Hasher.hex_multihash_len]u8 = null;
-fn calculateDigests(models_dir: std.fs.IterableDir, output_dir: std.fs.Dir, thread_pool: *std.Thread.Pool) !OutputManifest {
+fn calculateDigests(models_dir: std.fs.Dir, output_dir: std.fs.Dir, thread_pool: *std.Thread.Pool) !OutputManifest {
     const model_hash = if (model_digest) |m| m[0..Hasher.digest_len].* else try Hasher.computeDirectoryHash(thread_pool, models_dir, @constCast(&Hasher.ComputeDirectoryOptions{
         .isIncluded = struct {
-            pub fn include(entry: std.fs.IterableDir.Walker.WalkerEntry) bool {
+            pub fn include(entry: std.fs.Dir.Walker.Entry) bool {
                 return std.mem.endsWith(u8, entry.basename, ".json");
             }
         }.include,
         .isExcluded = struct {
-            pub fn exclude(entry: std.fs.IterableDir.Walker.WalkerEntry) bool {
+            pub fn exclude(entry: std.fs.Dir.Walker.Entry) bool {
                 _ = entry;
                 return false;
             }
@@ -148,14 +148,14 @@ fn calculateDigests(models_dir: std.fs.IterableDir, output_dir: std.fs.Dir, thre
     }));
     if (verbose) std.log.info("Model directory hash: {s}", .{model_digest orelse Hasher.hexDigest(model_hash)});
 
-    const output_hash = try Hasher.computeDirectoryHash(thread_pool, try output_dir.openIterableDir(".", .{}), @constCast(&Hasher.ComputeDirectoryOptions{
+    const output_hash = try Hasher.computeDirectoryHash(thread_pool, try output_dir.openDir(".", .{ .iterate = true }), @constCast(&Hasher.ComputeDirectoryOptions{
         .isIncluded = struct {
-            pub fn include(entry: std.fs.IterableDir.Walker.WalkerEntry) bool {
+            pub fn include(entry: std.fs.Dir.Walker.Entry) bool {
                 return std.mem.endsWith(u8, entry.basename, ".zig");
             }
         }.include,
         .isExcluded = struct {
-            pub fn exclude(entry: std.fs.IterableDir.Walker.WalkerEntry) bool {
+            pub fn exclude(entry: std.fs.Dir.Walker.Entry) bool {
                 _ = entry;
                 return false;
             }

example/build.zig

@@ -30,12 +30,13 @@ pub fn build(b: *std.Build) void {
     //     .optimize = optimize,
     // });
     // exe.addModule("smithy", smithy_dep.module("smithy"));
-    const aws_dep = b.dependency("aws", .{
+    const aws_dep = b.dependency("aws-zig", .{
         // These are the two arguments to the dependency. It expects a target and optimization level.
         .target = target,
         .optimize = optimize,
     });
-    exe.addModule("aws", aws_dep.module("aws"));
+    const aws_module = aws_dep.module("aws");
+    exe.root_module.addImport("aws", aws_module);
     // This declares intent for the executable to be installed into the
     // standard location when the user invokes the "install" step (the default
     // step when running `zig build`).

example/build.zig.zon

@@ -1,15 +1,16 @@
 .{
     .name = "myapp",
     .version = "0.0.1",
+    .paths = .{""},
 
     .dependencies = .{
-        .aws = .{
-            .url = "https://git.lerch.org/api/packages/lobo/generic/aws-sdk-with-models/d08d0f338fb86f7d679a998ff4f65f4e2d0db595/d08d0f338fb86f7d679a998ff4f65f4e2d0db595-with-models.tar.gz",
-            .hash = "1220c8871d93592680ea2dcc88cc52fb4f0effabeed0584d2a5c54f93825741b7c66",
-        },
         .smithy = .{
-            .url = "https://git.lerch.org/lobo/smithy/archive/41b61745d25a65817209dd5dddbb5f9b66896a99.tar.gz",
+            .url = "https://git.lerch.org/lobo/smithy/archive/1e534201c4df5ea4f615faeedc69d414adbec0b1.tar.gz",
-            .hash = "122087deb0ae309b2258d59b40d82fe5921fdfc35b420bb59033244851f7f276fa34",
+            .hash = "1220af63ae0498010004af79936cedf3fe6702f516daab77ebbd97a274eba1b42aad",
+        },
+        .@"aws-zig" = .{
+            .url = "https://git.lerch.org/api/packages/lobo/generic/aws-sdk-with-models/b1b2a6cc7a6104f5e1f6ee4cae33e6ef3ed2ec1c/b1b2a6cc7a6104f5e1f6ee4cae33e6ef3ed2ec1c-with-models.tar.gz",
+            .hash = "12203d7c7aea80fd5e1f892b4928b89b2c70d5688cf1843e0d03e5af79632c5a9146",
         },
     },
 }

example/src/main.zig

@@ -1,14 +1,14 @@
 const std = @import("std");
 const aws = @import("aws");
 
-pub const std_options = struct {
+pub const std_options: std.Options = .{
-    pub const log_level: std.log.Level = .info;
+    .log_level = .info,
 
     // usually log_level is enough, but log_scope_levels can be used
     // for finer grained control
-    pub const log_scope_levels = &[_]std.log.ScopeLevel{
+    .log_scope_levels = &[_]std.log.ScopeLevel{
         .{ .scope = .awshttp, .level = .warn },
-    };
+    },
 };
 
 pub fn main() anyerror!void {

src/aws.zig

@@ -1,3 +1,4 @@
+const builtin = @import("builtin");
 const std = @import("std");
 
 const awshttp = @import("aws_http.zig");
@@ -31,7 +32,7 @@ pub const services = servicemodel.services;
 pub const Services = servicemodel.Services;
 
 pub const ClientOptions = struct {
-    proxy: ?std.http.Client.HttpProxy = null,
+    proxy: ?std.http.Client.Proxy = null,
 };
 pub const Client = struct {
     allocator: std.mem.Allocator,
@@ -226,7 +227,7 @@ pub fn Request(comptime request_action: anytype) type {
             defer buffer.deinit();
             const writer = buffer.writer();
             try url.encode(options.client.allocator, request, writer, .{
-                .field_name_transformer = &queryFieldTransformer,
+                .field_name_transformer = queryFieldTransformer,
             });
             const continuation = if (buffer.items.len > 0) "&" else "";
 
@@ -734,7 +735,7 @@ fn headersFor(allocator: std.mem.Allocator, request: anytype) ![]awshttp.Header
     return headers.toOwnedSlice();
 }
 
-fn freeHeadersFor(allocator: std.mem.Allocator, request: anytype, headers: []awshttp.Header) void {
+fn freeHeadersFor(allocator: std.mem.Allocator, request: anytype, headers: []const awshttp.Header) void {
     if (!@hasDecl(@TypeOf(request), "http_header")) return;
     const http_header = @TypeOf(request).http_header;
     const fields = std.meta.fields(@TypeOf(http_header));
@@ -761,7 +762,7 @@ fn firstJsonKey(data: []const u8) []const u8 {
     log.debug("First json key: {s}", .{key});
     return key;
 }
-fn isJsonResponse(headers: []awshttp.Header) !bool {
+fn isJsonResponse(headers: []const awshttp.Header) !bool {
     // EC2 ignores our accept type, but technically query protocol only
     // returns XML as well. So, we'll ignore the protocol here and just
     // look at the return type
@@ -826,7 +827,7 @@ fn ServerResponse(comptime action: anytype) type {
     };
     const Result = @Type(.{
         .Struct = .{
-            .layout = .Auto,
+            .layout = .auto,
             .fields = &[_]std.builtin.Type.StructField{
                 .{
                     .name = action.action_name ++ "Result",
@@ -849,7 +850,7 @@ fn ServerResponse(comptime action: anytype) type {
     });
     return @Type(.{
         .Struct = .{
-            .layout = .Auto,
+            .layout = .auto,
             .fields = &[_]std.builtin.Type.StructField{
                 .{
                     .name = action.action_name ++ "Response",
@@ -919,8 +920,7 @@ fn safeFree(allocator: std.mem.Allocator, obj: anytype) void {
         else => {},
     }
 }
-fn queryFieldTransformer(allocator: std.mem.Allocator, field_name: []const u8, options: url.EncodingOptions) anyerror![]const u8 {
+fn queryFieldTransformer(allocator: std.mem.Allocator, field_name: []const u8) anyerror![]const u8 {
-    _ = options;
     return try case.snakeToPascal(allocator, field_name);
 }
 
@@ -1363,16 +1363,17 @@ test {
 }
 const TestOptions = struct {
     allocator: std.mem.Allocator,
+    arena: ?*std.heap.ArenaAllocator = null,
     server_port: ?u16 = null,
     server_remaining_requests: usize = 1,
     server_response: []const u8 = "unset",
     server_response_status: std.http.Status = .ok,
-    server_response_headers: [][2][]const u8 = &[_][2][]const u8{},
+    server_response_headers: []const std.http.Header = &.{},
     server_response_transfer_encoding: ?std.http.TransferEncoding = null,
     request_body: []u8 = "",
     request_method: std.http.Method = undefined,
     request_target: []const u8 = undefined,
-    request_headers: *std.http.Headers = undefined,
+    request_headers: []std.http.Header = undefined,
     test_server_runtime_uri: ?[]u8 = null,
     server_ready: bool = false,
     requests_processed: usize = 0,
@@ -1380,7 +1381,7 @@ const TestOptions = struct {
     const Self = @This();
 
     fn expectHeader(self: *Self, name: []const u8, value: []const u8) !void {
-        for (self.request_headers.list.items) |h|
+        for (self.request_headers) |h|
             if (std.ascii.eqlIgnoreCase(name, h.name) and
                 std.mem.eql(u8, value, h.value)) return;
         return error.HeaderOrValueNotFound;
@@ -1391,17 +1392,6 @@ const TestOptions = struct {
         while (!self.server_ready)
             std.time.sleep(100);
     }
-
-    fn deinit(self: Self) void {
-        if (self.requests_processed > 0) {
-            self.allocator.free(self.request_body);
-            self.allocator.free(self.request_target);
-            self.request_headers.deinit();
-            self.allocator.destroy(self.request_headers);
-        }
-        if (self.test_server_runtime_uri) |_|
-            self.allocator.free(self.test_server_runtime_uri.?);
-    }
 };
 
 /// This starts a test server. We're not testing the server itself,
@@ -1409,16 +1399,19 @@ const TestOptions = struct {
 /// whole thing so we can just deallocate everything at once at the end,
 /// leaks be damned
 fn threadMain(options: *TestOptions) !void {
-    var server = std.http.Server.init(options.allocator, .{ .reuse_address = true });
+    // https://github.com/ziglang/zig/blob/d2be725e4b14c33dbd39054e33d926913eee3cd4/lib/compiler/std-docs.zig#L22-L54
-    // defer server.deinit();
+
+    options.arena = try options.allocator.create(std.heap.ArenaAllocator);
+    options.arena.?.* = std.heap.ArenaAllocator.init(options.allocator);
+    const allocator = options.arena.?.allocator();
+    options.allocator = allocator;
 
     const address = try std.net.Address.parseIp("127.0.0.1", 0);
-    try server.listen(address);
+    var http_server = try address.listen(.{});
-    options.server_port = server.socket.listen_address.in.getPort();
+    options.server_port = http_server.listen_address.in.getPort();
-
+    // TODO: remove
     options.test_server_runtime_uri = try std.fmt.allocPrint(options.allocator, "http://127.0.0.1:{d}", .{options.server_port.?});
     log.debug("server listening at {s}", .{options.test_server_runtime_uri.?});
-    defer server.deinit();
     log.info("starting server thread, tid {d}", .{std.Thread.getCurrentId()});
     // var arena = std.heap.ArenaAllocator.init(options.allocator);
     // defer arena.deinit();
@@ -1427,7 +1420,7 @@ fn threadMain(options: *TestOptions) !void {
     // when it's time to shut down
     while (options.server_remaining_requests > 0) {
         options.server_remaining_requests -= 1;
-        processRequest(options, &server) catch |e| {
+        processRequest(options, &http_server) catch |e| {
             log.err("Unexpected error processing request: {any}", .{e});
             if (@errorReturnTrace()) |trace| {
                 std.debug.dumpStackTrace(trace.*);
@@ -1436,76 +1429,63 @@ fn threadMain(options: *TestOptions) !void {
     }
 }
 
-fn processRequest(options: *TestOptions, server: *std.http.Server) !void {
+fn processRequest(options: *TestOptions, net_server: *std.net.Server) !void {
     options.server_ready = true;
     errdefer options.server_ready = false;
     log.debug(
         "tid {d} (server): server waiting to accept. requests remaining: {d}",
         .{ std.Thread.getCurrentId(), options.server_remaining_requests + 1 },
     );
-    var res = try server.accept(.{ .allocator = options.allocator });
+    var connection = try net_server.accept();
-    options.server_ready = false;
+    defer connection.stream.close();
-    defer res.deinit();
+    var read_buffer: [1024 * 16]u8 = undefined;
-    defer if (res.headers.owned and res.headers.list.items.len > 0) res.headers.deinit();
+    var http_server = std.http.Server.init(connection, &read_buffer);
-    defer _ = res.reset();
+    while (http_server.state == .ready) {
-    try res.wait(); // wait for client to send a complete request head
+        var request = http_server.receiveHead() catch |err| switch (err) {
+            error.HttpConnectionClosing => return,
+            else => {
+                std.log.err("closing http connection: {s}", .{@errorName(err)});
+                std.log.debug("Error occurred from this request: \n{s}", .{read_buffer[0..http_server.read_buffer_len]});
+                return;
+            },
+        };
+        try serveRequest(options, &request);
+    }
+}
 
-    const errstr = "Internal Server Error\n";
+fn serveRequest(options: *TestOptions, request: *std.http.Server.Request) !void {
-    var errbuf: [errstr.len]u8 = undefined;
+    options.server_ready = false;
-    @memcpy(&errbuf, errstr);
-    var response_bytes: []const u8 = errbuf[0..];
 
     options.requests_processed += 1;
-    if (res.request.content_length) |l|
+    options.request_body = try (try request.reader()).readAllAlloc(options.allocator, std.math.maxInt(usize));
-        options.request_body = try res.reader().readAllAlloc(options.allocator, @as(usize, @intCast(l)))
+    options.request_method = request.head.method;
-    else
+    options.request_target = try options.allocator.dupe(u8, request.head.target);
-        options.request_body = try options.allocator.dupe(u8, "");
+    var req_headers = std.ArrayList(std.http.Header).init(options.allocator);
-    options.request_method = res.request.method;
+    defer req_headers.deinit();
-    options.request_target = try options.allocator.dupe(u8, res.request.target);
+    var it = request.iterateHeaders();
-    options.request_headers = try options.allocator.create(std.http.Headers);
+    while (it.next()) |f| {
-    options.request_headers.allocator = options.allocator;
+        const h = try options.allocator.create(std.http.Header);
-    options.request_headers.list = .{};
+        h.* = .{ .name = try options.allocator.dupe(u8, f.name), .value = try options.allocator.dupe(u8, f.value) };
-    options.request_headers.index = .{};
+        try req_headers.append(h.*);
-    options.request_headers.owned = true;
+    }
-    for (res.request.headers.list.items) |f|
+    options.request_headers = try req_headers.toOwnedSlice();
-        try options.request_headers.append(f.name, f.value);
     log.debug(
         "tid {d} (server): {d} bytes read from request",
         .{ std.Thread.getCurrentId(), options.request_body.len },
     );
 
     // try response.headers.append("content-type", "text/plain");
-    response_bytes = serve(options, &res) catch |e| brk: {
+    try request.respond(options.server_response, .{
-        res.status = .internal_server_error;
+        .status = options.server_response_status,
-        // TODO: more about this particular request
+        .extra_headers = options.server_response_headers,
-        log.err("Unexpected error from executor processing request: {any}", .{e});
+    });
-        if (@errorReturnTrace()) |trace| {
-            std.debug.dumpStackTrace(trace.*);
-        }
-        break :brk "Unexpected error generating request to lambda";
-    };
-    if (options.server_response_transfer_encoding == null)
-        res.transfer_encoding = .{ .content_length = response_bytes.len }
-    else
-        res.transfer_encoding = .chunked;
 
-    try res.do();
-    _ = try res.writer().writeAll(response_bytes);
-    try res.finish();
     log.debug(
         "tid {d} (server): sent response",
         .{std.Thread.getCurrentId()},
     );
 }
 
-fn serve(options: *TestOptions, res: *std.http.Server.Response) ![]const u8 {
-    res.status = options.server_response_status;
-    for (options.server_response_headers) |h|
-        try res.headers.append(h[0], h[1]);
-    // try res.headers.append("content-length", try std.fmt.allocPrint(allocator, "{d}", .{server_response.len}));
-    return options.server_response;
-}
-
 ////////////////////////////////////////////////////////////////////////
 // These will replicate the tests that were in src/main.zig
 // The server_response and server_response_headers come from logs of
@@ -1527,10 +1507,10 @@ const TestSetup = struct {
     const signing_time =
         date.dateTimeToTimestamp(date.parseIso8601ToDateTime("20230908T170252Z") catch @compileError("Cannot parse date")) catch @compileError("Cannot parse date");
 
-    fn init(allocator: std.mem.Allocator, options: TestOptions) Self {
+    fn init(options: TestOptions) Self {
         return .{
-            .allocator = allocator,
             .request_options = options,
+            .allocator = options.allocator,
         };
     }
 
@@ -1542,7 +1522,10 @@ const TestSetup = struct {
         );
         self.started = true;
         try self.request_options.waitForReady();
+        // Not sure why we're getting sprayed here, but we have an arena allocator, and this
+        // is testing, so yolo
         awshttp.endpoint_override = self.request_options.test_server_runtime_uri;
+        log.debug("endpoint override set to {?s}", .{awshttp.endpoint_override});
         self.creds = aws_auth.Credentials.init(
             self.allocator,
             try self.allocator.dupe(u8, "ACCESS"),
@@ -1563,9 +1546,11 @@ const TestSetup = struct {
         self.server_thread.join();
     }
 
-    fn deinit(self: Self) void {
+    fn deinit(self: *Self) void {
-        self.request_options.deinit();
+        if (self.request_options.arena) |a| {
-
+            a.deinit();
+            self.allocator.destroy(a);
+        }
         if (!self.started) return;
         awshttp.endpoint_override = null;
         // creds.deinit(); Creds will get deinited in the course of the call. We don't want to do it twice
@@ -1576,15 +1561,15 @@ const TestSetup = struct {
 
 test "query_no_input: sts getCallerIdentity comptime" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"GetCallerIdentityResponse":{"GetCallerIdentityResult":{"Account":"123456789012","Arn":"arn:aws:iam::123456789012:user/admin","UserId":"AIDAYAM4POHXHRVANDQBQ"},"ResponseMetadata":{"RequestId":"8f0d54da-1230-40f7-b4ac-95015c4b84cd"}}}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "8f0d54da-1230-40f7-b4ac-95015c4b84cd" },
+            .{ .name = "x-amzn-RequestId", .value = "8f0d54da-1230-40f7-b4ac-95015c4b84cd" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1611,7 +1596,7 @@ test "query_no_input: sts getCallerIdentity comptime" {
 test "query_with_input: sts getAccessKeyInfo runtime" {
     // sqs switched from query to json in aws sdk for go v2 commit f5a08768ef820ff5efd62a49ba50c61c9ca5dbcb
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\<GetAccessKeyInfoResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
@@ -1623,10 +1608,10 @@ test "query_with_input: sts getAccessKeyInfo runtime" {
         \\  </ResponseMetadata>
         \\</GetAccessKeyInfoResponse>
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "text/xml" },
+            .{ .name = "Content-Type", .value = "text/xml" },
-            .{ "x-amzn-RequestId", "ec85bf29-1ef0-459a-930e-6446dd14a286" },
+            .{ .name = "x-amzn-RequestId", .value = "ec85bf29-1ef0-459a-930e-6446dd14a286" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1649,15 +1634,15 @@ test "query_with_input: sts getAccessKeyInfo runtime" {
 }
 test "json_1_0_query_with_input: dynamodb listTables runtime" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"LastEvaluatedTableName":"Customer","TableNames":["Customer"]}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "QBI72OUIN8U9M9AG6PCSADJL4JVV4KQNSO5AEMVJF66Q9ASUAAJG" },
+            .{ .name = "x-amzn-RequestId", .value = "QBI72OUIN8U9M9AG6PCSADJL4JVV4KQNSO5AEMVJF66Q9ASUAAJG" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1685,15 +1670,15 @@ test "json_1_0_query_with_input: dynamodb listTables runtime" {
 
 test "json_1_0_query_no_input: dynamodb listTables runtime" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"AccountMaxReadCapacityUnits":80000,"AccountMaxWriteCapacityUnits":80000,"TableMaxReadCapacityUnits":40000,"TableMaxWriteCapacityUnits":40000}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "QBI72OUIN8U9M9AG6PCSADJL4JVV4KQNSO5AEMVJF66Q9ASUAAJG" },
+            .{ .name = "x-amzn-RequestId", .value = "QBI72OUIN8U9M9AG6PCSADJL4JVV4KQNSO5AEMVJF66Q9ASUAAJG" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1714,15 +1699,15 @@ test "json_1_0_query_no_input: dynamodb listTables runtime" {
 }
 test "json_1_1_query_with_input: ecs listClusters runtime" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"clusterArns":["arn:aws:ecs:us-west-2:550620852718:cluster/web-applicationehjaf-cluster"],"nextToken":"czE0Og=="}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "b2420066-ff67-4237-b782-721c4df60744" },
+            .{ .name = "x-amzn-RequestId", .value = "b2420066-ff67-4237-b782-721c4df60744" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1748,16 +1733,19 @@ test "json_1_1_query_with_input: ecs listClusters runtime" {
     try std.testing.expectEqualStrings("arn:aws:ecs:us-west-2:550620852718:cluster/web-applicationehjaf-cluster", call.response.cluster_arns.?[0]);
 }
 test "json_1_1_query_no_input: ecs listClusters runtime" {
+    // const old = std.testing.log_level;
+    // defer std.testing.log_level = old;
+    // std.testing.log_level = .debug;
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"clusterArns":["arn:aws:ecs:us-west-2:550620852718:cluster/web-applicationehjaf-cluster"],"nextToken":"czE0Og=="}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "e65322b2-0065-45f2-ba37-f822bb5ce395" },
+            .{ .name = "x-amzn-RequestId", .value = "e65322b2-0065-45f2-ba37-f822bb5ce395" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1782,15 +1770,15 @@ test "json_1_1_query_no_input: ecs listClusters runtime" {
 }
 test "rest_json_1_query_with_input: lambda listFunctions runtime" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"Functions":[{"Description":"AWS CDK resource provider framework - onEvent (DevelopmentFrontendStack-g650u/com.amazonaws.cdk.custom-resources.amplify-asset-deployment-provider/amplify-asset-deployment-handler-provider)","TracingConfig":{"Mode":"PassThrough"},"VpcConfig":null,"SigningJobArn":null,"SnapStart":{"OptimizationStatus":"Off","ApplyOn":"None"},"RevisionId":"0c62fc74-a692-403d-9206-5fcbad406424","LastModified":"2023-03-01T18:13:15.704+0000","FileSystemConfigs":null,"FunctionName":"DevelopmentFrontendStack--amplifyassetdeploymentha-aZqB9IbZLIKU","Runtime":"nodejs14.x","Version":"$LATEST","PackageType":"Zip","LastUpdateStatus":null,"Layers":null,"FunctionArn":"arn:aws:lambda:us-west-2:550620852718:function:DevelopmentFrontendStack--amplifyassetdeploymentha-aZqB9IbZLIKU","KMSKeyArn":null,"MemorySize":128,"ImageConfigResponse":null,"LastUpdateStatusReason":null,"DeadLetterConfig":null,"Timeout":900,"Handler":"framework.onEvent","CodeSha256":"m4tt+M0l3p8bZvxIDj83dwGrwRW6atCfS/q8AiXCD3o=","Role":"arn:aws:iam::550620852718:role/DevelopmentFrontendStack-amplifyassetdeploymentha-1782JF7WAPXZ3","SigningProfileVersionArn":null,"MasterArn":null,"RuntimeVersionConfig":null,"CodeSize":4307,"State":null,"StateReason":null,"Environment":{"Variables":{"USER_ON_EVENT_FUNCTION_ARN":"arn:aws:lambda:us-west-2:550620852718:function:DevelopmentFrontendStack--amplifyassetdeploymenton-X9iZJSCSPYDH","WAITER_STATE_MACHINE_ARN":"arn:aws:states:us-west-2:550620852718:stateMachine:amplifyassetdeploymenthandlerproviderwaiterstatemachineB3C2FCBE-Ltggp5wBcHWO","USER_IS_COMPLETE_FUNCTION_ARN":"arn:aws:lambda:us-west-2:550620852718:function:DevelopmentFrontendStack--amplifyassetdeploymentis-jaHopLrSSARV"},"Error":null},"EphemeralStorage":{"Size":512},"StateReasonCode":null,"LastUpdateStatusReasonCode":null,"Architectures":["x86_64"]}],"NextMarker":"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"}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "c4025199-226f-4a16-bb1f-48618e9d2ea6" },
+            .{ .name = "x-amzn-RequestId", .value = "c4025199-226f-4a16-bb1f-48618e9d2ea6" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1816,13 +1804,13 @@ test "rest_json_1_query_with_input: lambda listFunctions runtime" {
 }
 test "rest_json_1_query_no_input: lambda listFunctions runtime" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response = @embedFile("test_rest_json_1_query_no_input.response"),
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "b2aad11f-36fc-4d0d-ae92-fe0167fb0f40" },
+            .{ .name = "x-amzn-RequestId", .value = "b2aad11f-36fc-4d0d-ae92-fe0167fb0f40" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1850,14 +1838,14 @@ test "rest_json_1_query_no_input: lambda listFunctions runtime" {
 }
 test "rest_json_1_work_with_lambda: lambda tagResource (only), to excercise zig issue 17015" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response = "",
         .server_response_status = .no_content,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "a521e152-6e32-4e67-9fb3-abc94e34551b" },
+            .{ .name = "x-amzn-RequestId", .value = "a521e152-6e32-4e67-9fb3-abc94e34551b" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1886,13 +1874,13 @@ test "rest_json_1_work_with_lambda: lambda tagResource (only), to excercise zig
 }
 test "ec2_query_no_input: EC2 describe regions" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response = @embedFile("test_ec2_query_no_input.response"),
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "text/xml;charset=UTF-8" },
+            .{ .name = "Content-Type", .value = "text/xml;charset=UTF-8" },
-            .{ "x-amzn-RequestId", "4cdbdd69-800c-49b5-8474-ae4c17709782" },
+            .{ .name = "x-amzn-RequestId", .value = "4cdbdd69-800c-49b5-8474-ae4c17709782" },
-        }),
+        },
         .server_response_transfer_encoding = .chunked,
     });
     defer test_harness.deinit();
@@ -1911,15 +1899,21 @@ test "ec2_query_no_input: EC2 describe regions" {
     try std.testing.expectEqualStrings("4cdbdd69-800c-49b5-8474-ae4c17709782", call.response_metadata.request_id);
     try std.testing.expectEqual(@as(usize, 17), call.response.regions.?.len);
 }
+// LLVM hates this test. Depending on the platform, it will consume all memory
+// on the compilation host. Windows x86_64 and Linux riscv64 seem to be a problem so far
+// riscv64-linux also seems to have another problem with LLVM basically infinitely
+// doing something. My guess is the @embedFile is freaking out LLVM
 test "ec2_query_with_input: EC2 describe instances" {
+    if (builtin.cpu.arch == .x86_64 and builtin.os.tag == .windows) return error.SkipZigTest;
+    if (builtin.cpu.arch == .riscv64 and builtin.os.tag == .linux) return error.SkipZigTest;
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response = @embedFile("test_ec2_query_with_input.response"),
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "text/xml;charset=UTF-8" },
+            .{ .name = "Content-Type", .value = "text/xml;charset=UTF-8" },
-            .{ "x-amzn-RequestId", "150a14cc-785d-476f-a4c9-2aa4d03b14e2" },
+            .{ .name = "x-amzn-RequestId", .value = "150a14cc-785d-476f-a4c9-2aa4d03b14e2" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1943,15 +1937,15 @@ test "ec2_query_with_input: EC2 describe instances" {
 }
 test "rest_xml_no_input: S3 list buckets" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\<ListAllMyBucketsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Owner><ID>3367189aa775bd98da38e55093705f2051443c1e775fc0971d6d77387a47c8d0</ID><DisplayName>emilerch+sub1</DisplayName></Owner><Buckets><Bucket><Name>550620852718-backup</Name><CreationDate>2020-06-17T16:26:51.000Z</CreationDate></Bucket><Bucket><Name>amplify-letmework-staging-185741-deployment</Name><CreationDate>2023-03-10T18:57:49.000Z</CreationDate></Bucket><Bucket><Name>aws-cloudtrail-logs-550620852718-224022a7</Name><CreationDate>2021-06-21T18:32:44.000Z</CreationDate></Bucket><Bucket><Name>aws-sam-cli-managed-default-samclisourcebucket-1gy0z00mj47xe</Name><CreationDate>2021-10-05T16:38:07.000Z</CreationDate></Bucket><Bucket><Name>awsomeprojectstack-pipelineartifactsbucketaea9a05-1uzwo6c86ecr</Name><CreationDate>2021-10-05T22:55:09.000Z</CreationDate></Bucket><Bucket><Name>cdk-hnb659fds-assets-550620852718-us-west-2</Name><CreationDate>2023-02-28T21:49:36.000Z</CreationDate></Bucket><Bucket><Name>cf-templates-12iy6putgdxtk-us-west-2</Name><CreationDate>2020-06-26T02:31:59.000Z</CreationDate></Bucket><Bucket><Name>codepipeline-us-west-2-46714083637</Name><CreationDate>2021-09-14T18:43:07.000Z</CreationDate></Bucket><Bucket><Name>elasticbeanstalk-us-west-2-550620852718</Name><CreationDate>2022-04-15T16:22:42.000Z</CreationDate></Bucket><Bucket><Name>lobo-west</Name><CreationDate>2021-06-21T17:17:22.000Z</CreationDate></Bucket><Bucket><Name>lobo-west-2</Name><CreationDate>2021-11-19T20:12:31.000Z</CreationDate></Bucket><Bucket><Name>logging-backup-550620852718-us-east-2</Name><CreationDate>2022-05-29T21:55:16.000Z</CreationDate></Bucket><Bucket><Name>mysfitszj3t6webstack-hostingbucketa91a61fe-1ep3ezkgwpxr0</Name><CreationDate>2023-03-01T04:53:55.000Z</CreationDate></Bucket></Buckets></ListAllMyBucketsResult>
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/xml" },
+            .{ .name = "Content-Type", .value = "application/xml" },
-            .{ "x-amzn-RequestId", "9PEYBAZ9J7TPRX43" },
+            .{ .name = "x-amzn-RequestId", .value = "9PEYBAZ9J7TPRX43" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -1974,15 +1968,15 @@ test "rest_xml_no_input: S3 list buckets" {
 }
 test "rest_xml_anything_but_s3: CloudFront list key groups" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response =
         \\{"Items":null,"MaxItems":100,"NextMarker":null,"Quantity":0}
         ,
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
-            .{ "Content-Type", "application/json" },
+            .{ .name = "Content-Type", .value = "application/json" },
-            .{ "x-amzn-RequestId", "d3382082-5291-47a9-876b-8df3accbb7ea" },
+            .{ .name = "x-amzn-RequestId", .value = "d3382082-5291-47a9-876b-8df3accbb7ea" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -2000,16 +1994,16 @@ test "rest_xml_anything_but_s3: CloudFront list key groups" {
 }
 test "rest_xml_with_input: S3 put object" {
     const allocator = std.testing.allocator;
-    var test_harness = TestSetup.init(allocator, .{
+    var test_harness = TestSetup.init(.{
         .allocator = allocator,
         .server_response = "",
-        .server_response_headers = @constCast(&[_][2][]const u8{
+        .server_response_headers = &.{
             // .{ "Content-Type", "application/xml" },
-            .{ "x-amzn-RequestId", "9PEYBAZ9J7TPRX43" },
+            .{ .name = "x-amzn-RequestId", .value = "9PEYBAZ9J7TPRX43" },
-            .{ "x-amz-id-2", "jdRDo30t7Ge9lf6F+4WYpg+YKui8z0mz2+rwinL38xDZzvloJqrmpCAiKG375OSvHA9OBykJS44=" },
+            .{ .name = "x-amz-id-2", .value = "jdRDo30t7Ge9lf6F+4WYpg+YKui8z0mz2+rwinL38xDZzvloJqrmpCAiKG375OSvHA9OBykJS44=" },
-            .{ "x-amz-server-side-encryption", "AES256" },
+            .{ .name = "x-amz-server-side-encryption", .value = "AES256" },
-            .{ "ETag", "37b51d194a7513e45b56f6524f2d51f2" },
+            .{ .name = "ETag", .value = "37b51d194a7513e45b56f6524f2d51f2" },
-        }),
+        },
     });
     defer test_harness.deinit();
     const options = try test_harness.start();
@@ -2018,7 +2012,6 @@ test "rest_xml_with_input: S3 put object" {
         .client = options.client,
         .signing_time = TestSetup.signing_time,
     };
-    // std.testing.log_level = .debug;
     const result = try Request(services.s3.put_object).call(.{
         .bucket = "mysfitszj3t6webstack-hostingbucketa91a61fe-1ep3ezkgwpxr0",
         .key = "i/am/a/teapot/foo",
@@ -2026,7 +2019,7 @@ test "rest_xml_with_input: S3 put object" {
         .body = "bar",
         .storage_class = "STANDARD",
     }, s3opts);
-    for (test_harness.request_options.request_headers.list.items) |header| {
+    for (test_harness.request_options.request_headers) |header| {
         std.log.info("Request header: {s}: {s}", .{ header.name, header.value });
     }
     std.log.info("PutObject Request id: {s}", .{result.response_metadata.request_id});

src/aws_credentials.zig

@@ -122,29 +122,22 @@ fn getContainerCredentials(allocator: std.mem.Allocator) !?auth.Credentials {
     const container_uri = try std.fmt.allocPrint(allocator, "http://169.254.170.2{s}", .{container_relative_uri});
     defer allocator.free(container_uri);
 
-    var empty_headers = std.http.Headers.init(allocator);
-    defer empty_headers.deinit();
     var cl = std.http.Client{ .allocator = allocator };
     defer cl.deinit(); // I don't belive connection pooling would help much here as it's non-ssl and local
-    var req = try cl.request(.GET, try std.Uri.parse(container_uri), empty_headers, .{});
+    var resp_payload = std.ArrayList(u8).init(allocator);
-    defer req.deinit();
+    defer resp_payload.deinit();
-    try req.start();
+    const req = try cl.fetch(.{
-    try req.wait();
+        .location = .{ .url = container_uri },
-    if (req.response.status != .ok and req.response.status != .not_found) {
+        .response_storage = .{ .dynamic = &resp_payload },
-        log.warn("Bad status code received from container credentials endpoint: {}", .{@intFromEnum(req.response.status)});
+    });
+    if (req.status != .ok and req.status != .not_found) {
+        log.warn("Bad status code received from container credentials endpoint: {}", .{@intFromEnum(req.status)});
         return null;
     }
-    if (req.response.status == .not_found) return null;
+    if (req.status == .not_found) return null;
-    if (req.response.content_length == null or req.response.content_length.? == 0) return null;
 
-    var resp_payload = try std.ArrayList(u8).initCapacity(allocator, @intCast(req.response.content_length.?));
+    log.debug("Read {d} bytes from container credentials endpoint", .{resp_payload.items.len});
-    defer resp_payload.deinit();
+    if (resp_payload.items.len == 0) return null;
-    try resp_payload.resize(@intCast(req.response.content_length.?));
-    const response_data = try resp_payload.toOwnedSlice();
-    defer allocator.free(response_data);
-    _ = try req.readAll(response_data);
-    log.debug("Read {d} bytes from container credentials endpoint", .{response_data.len});
-    if (response_data.len == 0) return null;
 
     const CredsResponse = struct {
         AccessKeyId: []const u8,
@@ -154,8 +147,8 @@ fn getContainerCredentials(allocator: std.mem.Allocator) !?auth.Credentials {
         Token: []const u8,
     };
     const creds_response = blk: {
-        const res = std.json.parseFromSlice(CredsResponse, allocator, response_data, .{}) catch |e| {
+        const res = std.json.parseFromSlice(CredsResponse, allocator, resp_payload.items, .{}) catch |e| {
-            log.err("Unexpected Json response from container credentials endpoint: {s}", .{response_data});
+            log.err("Unexpected Json response from container credentials endpoint: {s}", .{resp_payload.items});
             log.err("Error parsing json: {}", .{e});
             if (@errorReturnTrace()) |trace| {
                 std.debug.dumpStackTrace(trace.*);
@@ -182,28 +175,27 @@ fn getImdsv2Credentials(allocator: std.mem.Allocator) !?auth.Credentials {
     defer cl.deinit(); // I don't belive connection pooling would help much here as it's non-ssl and local
     // Get token
     {
-        var headers = std.http.Headers.init(allocator);
+        var resp_payload = std.ArrayList(u8).init(allocator);
-        defer headers.deinit();
+        defer resp_payload.deinit();
-        try headers.append("X-aws-ec2-metadata-token-ttl-seconds", "21600");
+        const req = try cl.fetch(.{
-        var req = try cl.request(.PUT, try std.Uri.parse("http://169.254.169.254/latest/api/token"), headers, .{});
+            .method = .PUT,
-        defer req.deinit();
+            .location = .{ .url = "http://169.254.169.254/latest/api/token" },
-        try req.start();
+            .extra_headers = &[_]std.http.Header{
-        try req.wait();
+                .{ .name = "X-aws-ec2-metadata-token-ttl-seconds", .value = "21600" },
-        if (req.response.status != .ok) {
+            },
-            log.warn("Bad status code received from IMDS v2: {}", .{@intFromEnum(req.response.status)});
+            .response_storage = .{ .dynamic = &resp_payload },
+        });
+        if (req.status != .ok) {
+            log.warn("Bad status code received from IMDS v2: {}", .{@intFromEnum(req.status)});
             return null;
         }
-        if (req.response.content_length == null or req.response.content_length == 0) {
+        if (resp_payload.items.len == 0) {
             log.warn("Unexpected zero response from IMDS v2", .{});
             return null;
         }
 
-        var resp_payload = try std.ArrayList(u8).initCapacity(allocator, @intCast(req.response.content_length.?));
-        defer resp_payload.deinit();
-        try resp_payload.resize(@intCast(req.response.content_length.?));
         token = try resp_payload.toOwnedSlice();
         errdefer if (token) |t| allocator.free(t);
-        _ = try req.readAll(token.?);
     }
     std.debug.assert(token != null);
     log.debug("Got token from IMDSv2: {s}", .{token.?});
@@ -224,28 +216,26 @@ fn getImdsRoleName(allocator: std.mem.Allocator, client: *std.http.Client, imds_
     //   "InstanceProfileArn" : "arn:aws:iam::550620852718:instance-profile/ec2-dev",
     //   "InstanceProfileId" : "AIPAYAM4POHXCFNKZ7HU2"
     // }
-    var headers = std.http.Headers.init(allocator);
+    var resp_payload = std.ArrayList(u8).init(allocator);
-    defer headers.deinit();
+    defer resp_payload.deinit();
-    try headers.append("X-aws-ec2-metadata-token", imds_token);
+    const req = try client.fetch(.{
+        .method = .GET,
+        .location = .{ .url = "http://169.254.169.254/latest/meta-data/iam/info" },
+        .extra_headers = &[_]std.http.Header{
+            .{ .name = "X-aws-ec2-metadata-token", .value = imds_token },
+        },
+        .response_storage = .{ .dynamic = &resp_payload },
+    });
 
-    var req = try client.request(.GET, try std.Uri.parse("http://169.254.169.254/latest/meta-data/iam/info"), headers, .{});
+    if (req.status != .ok and req.status != .not_found) {
-    defer req.deinit();
+        log.warn("Bad status code received from IMDS iam endpoint: {}", .{@intFromEnum(req.status)});
-
-    try req.start();
-    try req.wait();
-
-    if (req.response.status != .ok and req.response.status != .not_found) {
-        log.warn("Bad status code received from IMDS iam endpoint: {}", .{@intFromEnum(req.response.status)});
         return null;
     }
-    if (req.response.status == .not_found) return null;
+    if (req.status == .not_found) return null;
-    if (req.response.content_length == null or req.response.content_length.? == 0) {
+    if (resp_payload.items.len == 0) {
         log.warn("Unexpected empty response from IMDS endpoint post token", .{});
         return null;
     }
-    const resp = try allocator.alloc(u8, @intCast(req.response.content_length.?));
-    defer allocator.free(resp);
-    _ = try req.readAll(resp);
 
     const ImdsResponse = struct {
         Code: []const u8,
@@ -253,8 +243,8 @@ fn getImdsRoleName(allocator: std.mem.Allocator, client: *std.http.Client, imds_
         InstanceProfileArn: []const u8,
         InstanceProfileId: []const u8,
     };
-    const imds_response = std.json.parseFromSlice(ImdsResponse, allocator, resp, .{}) catch |e| {
+    const imds_response = std.json.parseFromSlice(ImdsResponse, allocator, resp_payload.items, .{}) catch |e| {
-        log.err("Unexpected Json response from IMDS endpoint: {s}", .{resp});
+        log.err("Unexpected Json response from IMDS endpoint: {s}", .{resp_payload.items});
         log.err("Error parsing json: {}", .{e});
         if (@errorReturnTrace()) |trace| {
             std.debug.dumpStackTrace(trace.*);
@@ -274,31 +264,28 @@ fn getImdsRoleName(allocator: std.mem.Allocator, client: *std.http.Client, imds_
 
 /// Note - this internal function assumes zfetch is initialized prior to use
 fn getImdsCredentials(allocator: std.mem.Allocator, client: *std.http.Client, role_name: []const u8, imds_token: []u8) !?auth.Credentials {
-    var headers = std.http.Headers.init(allocator);
-    defer headers.deinit();
-    try headers.append("X-aws-ec2-metadata-token", imds_token);
-
     const url = try std.fmt.allocPrint(allocator, "http://169.254.169.254/latest/meta-data/iam/security-credentials/{s}/", .{role_name});
     defer allocator.free(url);
+    var resp_payload = std.ArrayList(u8).init(allocator);
+    defer resp_payload.deinit();
+    const req = try client.fetch(.{
+        .method = .GET,
+        .location = .{ .url = url },
+        .extra_headers = &[_]std.http.Header{
+            .{ .name = "X-aws-ec2-metadata-token", .value = imds_token },
+        },
+        .response_storage = .{ .dynamic = &resp_payload },
+    });
 
-    var req = try client.request(.GET, try std.Uri.parse(url), headers, .{});
+    if (req.status != .ok and req.status != .not_found) {
-    defer req.deinit();
+        log.warn("Bad status code received from IMDS role endpoint: {}", .{@intFromEnum(req.status)});
-
-    try req.start();
-    try req.wait();
-
-    if (req.response.status != .ok and req.response.status != .not_found) {
-        log.warn("Bad status code received from IMDS role endpoint: {}", .{@intFromEnum(req.response.status)});
         return null;
     }
-    if (req.response.status == .not_found) return null;
+    if (req.status == .not_found) return null;
-    if (req.response.content_length == null or req.response.content_length.? == 0) {
+    if (resp_payload.items.len == 0) {
         log.warn("Unexpected empty response from IMDS role endpoint", .{});
         return null;
     }
-    const resp = try allocator.alloc(u8, @intCast(req.response.content_length.?));
-    defer allocator.free(resp);
-    _ = try req.readAll(resp);
 
     // log.debug("Read {d} bytes from imds v2 credentials endpoint", .{read});
     const ImdsResponse = struct {
@@ -310,8 +297,8 @@ fn getImdsCredentials(allocator: std.mem.Allocator, client: *std.http.Client, ro
         Token: []const u8,
         Expiration: []const u8,
     };
-    const imds_response = std.json.parseFromSlice(ImdsResponse, allocator, resp, .{}) catch |e| {
+    const imds_response = std.json.parseFromSlice(ImdsResponse, allocator, resp_payload.items, .{}) catch |e| {
-        log.err("Unexpected Json response from IMDS endpoint: {s}", .{resp});
+        log.err("Unexpected Json response from IMDS endpoint: {s}", .{resp_payload.items});
         log.err("Error parsing json: {}", .{e});
         if (@errorReturnTrace()) |trace| {
             std.debug.dumpStackTrace(trace.*);
@@ -581,32 +568,13 @@ fn getDefaultPath(allocator: std.mem.Allocator, home_dir: ?[]const u8, dir: []co
 fn getHomeDir(allocator: std.mem.Allocator) ![]const u8 {
     switch (builtin.os.tag) {
         .windows => {
-            var dir_path_ptr: [*:0]u16 = undefined;
+            return std.process.getEnvVarOwned(allocator, "USERPROFILE") catch |err| switch (err) {
-            // https://docs.microsoft.com/en-us/windows/win32/shell/knownfolderid
+                error.OutOfMemory => |e| return e,
-            const FOLDERID_Profile = std.os.windows.GUID.parse("{5E6C858F-0E22-4760-9AFE-EA3317B67173}");
-            switch (std.os.windows.shell32.SHGetKnownFolderPath(
-                &FOLDERID_Profile,
-                std.os.windows.KF_FLAG_CREATE,
-                null,
-                &dir_path_ptr,
-            )) {
-                std.os.windows.S_OK => {
-                    defer std.os.windows.ole32.CoTaskMemFree(@as(*anyopaque, @ptrCast(dir_path_ptr)));
-                    const global_dir = std.unicode.utf16leToUtf8Alloc(allocator, std.mem.sliceTo(dir_path_ptr, 0)) catch |err| switch (err) {
-                        error.UnexpectedSecondSurrogateHalf => return error.HomeDirUnavailable,
-                        error.ExpectedSecondSurrogateHalf => return error.HomeDirUnavailable,
-                        error.DanglingSurrogateHalf => return error.HomeDirUnavailable,
-                        error.OutOfMemory => return error.OutOfMemory,
-                    };
-                    return global_dir;
-                    // defer allocator.free(global_dir);
-                },
-                std.os.windows.E_OUTOFMEMORY => return error.OutOfMemory,
                 else => return error.HomeDirUnavailable,
-            }
+            };
         },
         .macos, .linux, .freebsd, .netbsd, .dragonfly, .openbsd, .solaris => {
-            const home_dir = std.os.getenv("HOME") orelse {
+            const home_dir = std.posix.getenv("HOME") orelse {
                 // TODO look in /etc/passwd
                 return error.HomeDirUnavailable;
             };

src/aws_http.zig

@@ -44,7 +44,7 @@ pub const Options = struct {
     signing_time: ?i64 = null,
 };
 
-pub const Header = base.Header;
+pub const Header = std.http.Header;
 pub const HttpRequest = base.Request;
 pub const HttpResult = base.Result;
 
@@ -64,11 +64,11 @@ const EndPoint = struct {
 };
 pub const AwsHttp = struct {
     allocator: std.mem.Allocator,
-    proxy: ?std.http.Client.HttpProxy,
+    proxy: ?std.http.Client.Proxy,
 
     const Self = @This();
 
-    pub fn init(allocator: std.mem.Allocator, proxy: ?std.http.Client.HttpProxy) Self {
+    pub fn init(allocator: std.mem.Allocator, proxy: ?std.http.Client.Proxy) Self {
         return Self{
             .allocator = allocator,
             .proxy = proxy,
@@ -149,7 +149,7 @@ pub const AwsHttp = struct {
         // We will use endpoint instead
         request_cp.path = endpoint.path;
 
-        var request_headers = std.ArrayList(base.Header).init(self.allocator);
+        var request_headers = std.ArrayList(std.http.Header).init(self.allocator);
         defer request_headers.deinit();
 
         const len = try addHeaders(self.allocator, &request_headers, endpoint.host, request_cp.body, request_cp.content_type, request_cp.headers);
@@ -163,108 +163,75 @@ pub const AwsHttp = struct {
             }
         }
 
-        var headers = std.http.Headers.init(self.allocator);
+        var headers = std.ArrayList(std.http.Header).init(self.allocator);
         defer headers.deinit();
         for (request_cp.headers) |header|
-            try headers.append(header.name, header.value);
+            try headers.append(.{ .name = header.name, .value = header.value });
         log.debug("All Request Headers:", .{});
-        for (headers.list.items) |h| {
+        for (headers.items) |h| {
             log.debug("\t{s}: {s}", .{ h.name, h.value });
         }
 
         const url = try std.fmt.allocPrint(self.allocator, "{s}{s}{s}", .{ endpoint.uri, request_cp.path, request_cp.query });
         defer self.allocator.free(url);
         log.debug("Request url: {s}", .{url});
-        var cl = std.http.Client{ .allocator = self.allocator, .proxy = self.proxy };
+        // TODO: Fix this proxy stuff. This is all a kludge just to compile, but std.http.Client has it all built in now
+        var cl = std.http.Client{ .allocator = self.allocator, .https_proxy = if (self.proxy) |*p| @constCast(p) else null };
         defer cl.deinit(); // TODO: Connection pooling
-        //
-        // var req = try zfetch.Request.init(self.allocator, url, self.trust_chain);
-        // defer req.deinit();
 
         const method = std.meta.stringToEnum(std.http.Method, request_cp.method).?;
-        // std.Uri has a format function here that is used by start() (below)
+        var server_header_buffer: [16 * 1024]u8 = undefined;
-        // to escape the string we're about to send. But we don't want that...
+        var resp_payload = std.ArrayList(u8).init(self.allocator);
-        // we need the control, because the signing above relies on the url above.
+        defer resp_payload.deinit();
-        // We can't seem to have our cake and eat it too, because we need escaped
+        const req = try cl.fetch(.{
-        // ':' characters, but if we escape them, we'll get them double encoded.
+            .server_header_buffer = &server_header_buffer,
-        // If we don't escape them, they won't get encoded at all. I believe the
+            .method = method,
-        // only answer may be to copy the Request.start function from the
+            .payload = if (request_cp.body.len > 0) request_cp.body else null,
-        // standard library and tweak the print statements such that they don't
+            .response_storage = .{ .dynamic = &resp_payload },
-        // escape (but do still handle full uri (in proxy) vs path only (normal)
+            .raw_uri = true,
+            .location = .{ .url = url },
+            .extra_headers = headers.items,
+        });
+        // TODO: Need to test for payloads > 2^14. I believe one of our tests does this, but not sure
+        // if (request_cp.body.len > 0) {
+        //     // Workaround for https://github.com/ziglang/zig/issues/15626
+        //     const max_bytes: usize = 1 << 14;
+        //     var inx: usize = 0;
+        //     while (request_cp.body.len > inx) {
+        //         try req.writeAll(request_cp.body[inx..@min(request_cp.body.len, inx + max_bytes)]);
+        //         inx += max_bytes;
+        //     }
         //
-        // Bug report filed here:
+        //     try req.finish();
-        // https://github.com/ziglang/zig/issues/17015
+        // }
-        //
+        // try req.wait();
-        // https://github.com/ziglang/zig/blob/0.11.0/lib/std/http/Client.zig#L538-L636
-        //
-        // Look at lines 551 and 553:
-        // https://github.com/ziglang/zig/blob/0.11.0/lib/std/http/Client.zig#L551
-        //
-        // This ends up executing the format function here:
-        // https://github.com/ziglang/zig/blob/0.11.0/lib/std/http/Client.zig#L551
-        //
-        // Which is basically the what we want, without the escaping on lines
-        // 249, 254, and 260:
-        // https://github.com/ziglang/zig/blob/0.11.0/lib/std/Uri.zig#L249
-        //
-        // const unescaped_url = try std.Uri.unescapeString(self.allocator, url);
-        // defer self.allocator.free(unescaped_url);
-        var req = try cl.request(method, try std.Uri.parse(url), headers, .{});
-        defer req.deinit();
-        if (request_cp.body.len > 0)
-            req.transfer_encoding = .{ .content_length = request_cp.body.len };
-        try @import("http_client_17015_issue.zig").start(&req);
-        // try req.start();
-        if (request_cp.body.len > 0) {
-            // Workaround for https://github.com/ziglang/zig/issues/15626
-            const max_bytes: usize = 1 << 14;
-            var inx: usize = 0;
-            while (request_cp.body.len > inx) {
-                try req.writeAll(request_cp.body[inx..@min(request_cp.body.len, inx + max_bytes)]);
-                inx += max_bytes;
-            }
-
-            try req.finish();
-        }
-        try req.wait();
 
         // TODO: Timeout - is this now above us?
         log.debug(
             "Request Complete. Response code {d}: {?s}",
-            .{ @intFromEnum(req.response.status), req.response.status.phrase() },
+            .{ @intFromEnum(req.status), req.status.phrase() },
         );
         log.debug("Response headers:", .{});
-        var resp_headers = try std.ArrayList(Header).initCapacity(
+        var resp_headers = std.ArrayList(Header).init(
             self.allocator,
-            req.response.headers.list.items.len,
         );
         defer resp_headers.deinit();
-        var content_length: usize = 0;
+        var it = std.http.HeaderIterator.init(server_header_buffer[0..]);
-        for (req.response.headers.list.items) |h| {
+        while (it.next()) |h| { // even though we don't expect to fill the buffer,
+            // we don't get a length, but looks via stdlib source
+            // it should be ok to call next on the undefined memory
             log.debug("    {s}: {s}", .{ h.name, h.value });
-            resp_headers.appendAssumeCapacity(.{
+            try resp_headers.append(.{
                 .name = try (self.allocator.dupe(u8, h.name)),
                 .value = try (self.allocator.dupe(u8, h.value)),
             });
-            if (content_length == 0 and std.ascii.eqlIgnoreCase("content-length", h.name))
-                content_length = std.fmt.parseInt(usize, h.value, 10) catch 0;
         }
 
-        var response_data: []u8 =
+        log.debug("raw response body:\n{s}", .{resp_payload.items});
-            if (req.response.transfer_encoding) |_| // the only value here is "chunked"
-            try req.reader().readAllAlloc(self.allocator, std.math.maxInt(usize))
-        else blk: {
-            // content length
-            const tmp_data = try self.allocator.alloc(u8, content_length);
-            errdefer self.allocator.free(tmp_data);
-            _ = try req.readAll(tmp_data);
-            break :blk tmp_data;
-        };
-        log.debug("raw response body:\n{s}", .{response_data});
 
         const rc = HttpResult{
-            .response_code = @intFromEnum(req.response.status),
+            .response_code = @intFromEnum(req.status),
-            .body = response_data,
+            .body = try resp_payload.toOwnedSlice(),
             .headers = try resp_headers.toOwnedSlice(),
             .allocator = self.allocator,
         };
@@ -277,7 +244,16 @@ fn getRegion(service: []const u8, region: []const u8) []const u8 {
     return region;
 }
 
-fn addHeaders(allocator: std.mem.Allocator, headers: *std.ArrayList(base.Header), host: []const u8, body: []const u8, content_type: []const u8, additional_headers: []Header) !?[]const u8 {
+fn addHeaders(allocator: std.mem.Allocator, headers: *std.ArrayList(std.http.Header), host: []const u8, body: []const u8, content_type: []const u8, additional_headers: []const Header) !?[]const u8 {
+    // We don't need allocator and body because they were to add a
+    // Content-Length header. But that is being added by the client send()
+    // function, so we don't want it on the request twice. But I also feel
+    // pretty strongly that send() should be providing us control, because
+    // I think if we don't add it here, it won't get signed, and we would
+    // really prefer it to be signed. So, we will wait and watch for this
+    // situation to change in stdlib
+    _ = allocator;
+    _ = body;
     var has_content_type = false;
     for (additional_headers) |h| {
         if (std.ascii.eqlIgnoreCase(h.name, "Content-Type")) {
@@ -291,11 +267,6 @@ fn addHeaders(allocator: std.mem.Allocator, headers: *std.ArrayList(base.Header)
     if (!has_content_type)
         try headers.append(.{ .name = "Content-Type", .value = content_type });
     try headers.appendSlice(additional_headers);
-    if (body.len > 0) {
-        const len = try std.fmt.allocPrint(allocator, "{d}", .{body.len});
-        try headers.append(.{ .name = "Content-Length", .value = len });
-        return len;
-    }
     return null;
 }
 

src/aws_http_base.zig

@@ -7,12 +7,12 @@ pub const Request = struct {
     body: []const u8 = "",
     method: []const u8 = "POST",
     content_type: []const u8 = "application/json", // Can we get away with this?
-    headers: []Header = &[_]Header{},
+    headers: []const std.http.Header = &.{},
 };
 pub const Result = struct {
     response_code: u16, // actually 3 digits can fit in u10
     body: []const u8,
-    headers: []Header,
+    headers: []const std.http.Header,
     allocator: std.mem.Allocator,
 
     pub fn deinit(self: Result) void {
@@ -26,8 +26,3 @@ pub const Result = struct {
         return;
     }
 };
-
-pub const Header = struct {
-    name: []const u8,
-    value: []const u8,
-};

src/aws_signing.zig

@@ -169,19 +169,19 @@ pub fn signRequest(allocator: std.mem.Allocator, request: base.Request, config:
         additional_header_count += 1;
     if (config.signed_body_header == .none)
         additional_header_count -= 1;
-    const newheaders = try allocator.alloc(base.Header, rc.headers.len + additional_header_count);
+    const newheaders = try allocator.alloc(std.http.Header, rc.headers.len + additional_header_count);
     errdefer allocator.free(newheaders);
     const oldheaders = rc.headers;
     if (config.credentials.session_token) |t| {
-        newheaders[newheaders.len - additional_header_count] = base.Header{
+        newheaders[newheaders.len - additional_header_count] = std.http.Header{
             .name = "X-Amz-Security-Token",
             .value = try allocator.dupe(u8, t),
         };
         additional_header_count -= 1;
     }
     errdefer freeSignedRequest(allocator, &rc, config);
-    std.mem.copy(base.Header, newheaders, oldheaders);
+    @memcpy(newheaders[0..oldheaders.len], oldheaders);
-    newheaders[newheaders.len - additional_header_count] = base.Header{
+    newheaders[newheaders.len - additional_header_count] = std.http.Header{
         .name = "X-Amz-Date",
         .value = signing_iso8601,
     };
@@ -200,7 +200,7 @@ pub fn signRequest(allocator: std.mem.Allocator, request: base.Request, config:
         // may not add this header
         // This will be freed in freeSignedRequest
         // defer allocator.free(payload_hash);
-        newheaders[newheaders.len - additional_header_count] = base.Header{
+        newheaders[newheaders.len - additional_header_count] = std.http.Header{
             .name = "x-amz-content-sha256",
             .value = payload_hash,
         };
@@ -259,7 +259,7 @@ pub fn signRequest(allocator: std.mem.Allocator, request: base.Request, config:
 
     const signature = try hmac(allocator, signing_key, string_to_sign);
     defer allocator.free(signature);
-    newheaders[newheaders.len - 1] = base.Header{
+    newheaders[newheaders.len - 1] = std.http.Header{
         .name = "Authorization",
         .value = try std.fmt.allocPrint(
             allocator,
@@ -299,27 +299,51 @@ pub fn freeSignedRequest(allocator: std.mem.Allocator, request: *base.Request, c
 
 pub const credentialsFn = *const fn ([]const u8) ?Credentials;
 
-pub fn verifyServerRequest(allocator: std.mem.Allocator, request: std.http.Server.Request, request_body_reader: anytype, credentials_fn: credentialsFn) !bool {
+pub fn verifyServerRequest(allocator: std.mem.Allocator, request: *std.http.Server.Request, request_body_reader: anytype, credentials_fn: credentialsFn) !bool {
-    const unverified_request = UnverifiedRequest{
+    var unverified_request = try UnverifiedRequest.init(allocator, request);
-        .headers = request.headers,
+    defer unverified_request.deinit();
-        .target = request.target,
-        .method = request.method,
-    };
     return verify(allocator, unverified_request, request_body_reader, credentials_fn);
 }
 
 pub const UnverifiedRequest = struct {
-    headers: std.http.Headers,
+    headers: []std.http.Header,
     target: []const u8,
     method: std.http.Method,
+    allocator: std.mem.Allocator,
+
+    pub fn init(allocator: std.mem.Allocator, request: *std.http.Server.Request) !UnverifiedRequest {
+        var al = std.ArrayList(std.http.Header).init(allocator);
+        defer al.deinit();
+        var it = request.iterateHeaders();
+        while (it.next()) |h| try al.append(h);
+        return .{
+            .target = request.head.target,
+            .method = request.head.method,
+            .headers = try al.toOwnedSlice(),
+            .allocator = allocator,
+        };
+    }
+
+    pub fn getFirstHeaderValue(self: UnverifiedRequest, name: []const u8) ?[]const u8 {
+        for (self.headers) |*h| {
+            if (std.ascii.eqlIgnoreCase(name, h.name))
+                return h.value; // I don't think this is the whole story here, but should suffice for now
+            // We need to return the value before the first ';' IIRC
+        }
+        return null;
+    }
+
+    pub fn deinit(self: *UnverifiedRequest) void {
+        self.allocator.free(self.headers);
+    }
 };
 
 pub fn verify(allocator: std.mem.Allocator, request: UnverifiedRequest, request_body_reader: anytype, credentials_fn: credentialsFn) !bool {
     var arena = std.heap.ArenaAllocator.init(allocator);
     defer arena.deinit();
-    var aa = arena.allocator();
+    const aa = arena.allocator();
     // Authorization: AWS4-HMAC-SHA256 Credential=ACCESS/20230908/us-west-2/s3/aws4_request, SignedHeaders=accept;content-length;content-type;host;x-amz-content-sha256;x-amz-date;x-amz-storage-class, Signature=fcc43ce73a34c9bd1ddf17e8a435f46a859812822f944f9eeb2aabcd64b03523
-    const auth_header_or_null = request.headers.getFirstValue("Authorization");
+    const auth_header_or_null = request.getFirstHeaderValue("Authorization");
     const auth_header = if (auth_header_or_null) |a| a else return error.AuthorizationHeaderMissing;
     if (!std.mem.startsWith(u8, auth_header, "AWS4-HMAC-SHA256")) return error.UnsupportedAuthorizationType;
     var credential: ?[]const u8 = null;
@@ -373,8 +397,8 @@ fn verifyParsedAuthorization(
     const credentials = credentials_fn(access_key) orelse return error.CredentialsNotFound;
     // TODO: https://stackoverflow.com/questions/29276609/aws-authentication-requires-a-valid-date-or-x-amz-date-header-curl
     // For now I want to see this test pass
-    const normalized_iso_date = request.headers.getFirstValue("x-amz-date") orelse
+    const normalized_iso_date = request.getFirstHeaderValue("x-amz-date") orelse
-        request.headers.getFirstValue("Date").?;
+        request.getFirstHeaderValue("Date").?;
     log.debug("Got date: {s}", .{normalized_iso_date});
     _ = credential_iterator.next().?; // skip the date...I don't think we need this
     const region = credential_iterator.next().?;
@@ -392,7 +416,7 @@ fn verifyParsedAuthorization(
         .signing_time = try date.dateTimeToTimestamp(try date.parseIso8601ToDateTime(normalized_iso_date)),
     };
 
-    var headers = try allocator.alloc(base.Header, std.mem.count(u8, signed_headers, ";") + 1);
+    var headers = try allocator.alloc(std.http.Header, std.mem.count(u8, signed_headers, ";") + 1);
     defer allocator.free(headers);
     var signed_headers_iterator = std.mem.splitSequence(u8, signed_headers, ";");
     var inx: usize = 0;
@@ -409,7 +433,7 @@ fn verifyParsedAuthorization(
         if (is_forbidden) continue;
         headers[inx] = .{
             .name = signed_header,
-            .value = request.headers.getFirstValue(signed_header).?,
+            .value = request.getFirstHeaderValue(signed_header).?,
         };
         inx += 1;
     }
@@ -418,7 +442,7 @@ fn verifyParsedAuthorization(
         .path = target_iterator.first(),
         .headers = headers[0..inx],
         .method = @tagName(request.method),
-        .content_type = request.headers.getFirstValue("content-type").?,
+        .content_type = request.getFirstHeaderValue("content-type").?,
     };
     signed_request.query = request.target[signed_request.path.len..]; // TODO: should this be +1? query here would include '?'
     signed_request.body = try request_body_reader.readAllAlloc(allocator, std.math.maxInt(usize));
@@ -780,7 +804,7 @@ const CanonicalHeaders = struct {
     str: []const u8,
     signed_headers: []const u8,
 };
-fn canonicalHeaders(allocator: std.mem.Allocator, headers: []base.Header, service: []const u8) !CanonicalHeaders {
+fn canonicalHeaders(allocator: std.mem.Allocator, headers: []const std.http.Header, service: []const u8) !CanonicalHeaders {
     //
     // Doc example. Original:
     //
@@ -796,7 +820,7 @@ fn canonicalHeaders(allocator: std.mem.Allocator, headers: []base.Header, servic
     // my-header1:a b c\n
     // my-header2:"a b c"\n
     // x-amz-date:20150830T123600Z\n
-    var dest = try std.ArrayList(base.Header).initCapacity(allocator, headers.len);
+    var dest = try std.ArrayList(std.http.Header).initCapacity(allocator, headers.len);
     defer {
         for (dest.items) |h| {
             allocator.free(h.name);
@@ -835,7 +859,7 @@ fn canonicalHeaders(allocator: std.mem.Allocator, headers: []base.Header, servic
         try dest.append(.{ .name = n, .value = v });
     }
 
-    std.sort.pdq(base.Header, dest.items, {}, lessThan);
+    std.sort.pdq(std.http.Header, dest.items, {}, lessThan);
 
     var dest_str = try std.ArrayList(u8).initCapacity(allocator, total_len);
     defer dest_str.deinit();
@@ -883,7 +907,7 @@ fn canonicalHeaderValue(allocator: std.mem.Allocator, value: []const u8) ![]cons
     _ = allocator.resize(rc, rc_inx);
     return rc[0..rc_inx];
 }
-fn lessThan(context: void, lhs: base.Header, rhs: base.Header) bool {
+fn lessThan(context: void, lhs: std.http.Header, rhs: std.http.Header) bool {
     _ = context;
     return std.ascii.lessThanIgnoreCase(lhs.name, rhs.name);
 }
@@ -935,7 +959,7 @@ test "canonical query" {
 }
 test "canonical headers" {
     const allocator = std.testing.allocator;
-    var headers = try std.ArrayList(base.Header).initCapacity(allocator, 5);
+    var headers = try std.ArrayList(std.http.Header).initCapacity(allocator, 5);
     defer headers.deinit();
     try headers.append(.{ .name = "Host", .value = "iam.amazonaws.com" });
     try headers.append(.{ .name = "Content-Type", .value = "application/x-www-form-urlencoded; charset=utf-8" });
@@ -960,7 +984,7 @@ test "canonical headers" {
 
 test "canonical request" {
     const allocator = std.testing.allocator;
-    var headers = try std.ArrayList(base.Header).initCapacity(allocator, 5);
+    var headers = try std.ArrayList(std.http.Header).initCapacity(allocator, 5);
     defer headers.deinit();
     try headers.append(.{ .name = "User-agent", .value = "c sdk v1.0" });
     // In contrast to AWS CRT (aws-c-auth), we add the date as part of the
@@ -1020,7 +1044,7 @@ test "can sign" {
     // [debug] (awshttp):      Content-Length: 43
 
     const allocator = std.testing.allocator;
-    var headers = try std.ArrayList(base.Header).initCapacity(allocator, 5);
+    var headers = try std.ArrayList(std.http.Header).initCapacity(allocator, 5);
     defer headers.deinit();
     try headers.append(.{ .name = "Content-Type", .value = "application/x-www-form-urlencoded; charset=utf-8" });
     try headers.append(.{ .name = "Content-Length", .value = "13" });
@@ -1077,34 +1101,39 @@ test "can verify server request" {
     test_credential = Credentials.init(allocator, access_key, secret_key, null);
     defer test_credential.?.deinit();
 
-    var headers = std.http.Headers.init(allocator);
+    const req =
-    defer headers.deinit();
+        "PUT /mysfitszj3t6webstack-hostingbucketa91a61fe-1ep3ezkgwpxr0/i/am/a/teapot/foo?x-id=PutObject HTTP/1.1\r\n" ++
-    try headers.append("Connection", "keep-alive");
+        "Connection: keep-alive\r\n" ++
-    try headers.append("Accept-Encoding", "gzip, deflate, zstd");
+        "Accept-Encoding: gzip, deflate, zstd\r\n" ++
-    try headers.append("TE", "gzip, deflate, trailers");
+        "TE: gzip, deflate, trailers\r\n" ++
-    try headers.append("Accept", "application/json");
+        "Accept: application/json\r\n" ++
-    try headers.append("Host", "127.0.0.1");
+        "Host: 127.0.0.1\r\n" ++
-    try headers.append("User-Agent", "zig-aws 1.0");
+        "User-Agent: zig-aws 1.0\r\n" ++
-    try headers.append("Content-Type", "text/plain");
+        "Content-Type: text/plain\r\n" ++
-    try headers.append("x-amz-storage-class", "STANDARD");
+        "x-amz-storage-class: STANDARD\r\n" ++
-    try headers.append("Content-Length", "3");
+        "Content-Length: 3\r\n" ++
-    try headers.append("X-Amz-Date", "20230908T170252Z");
+        "X-Amz-Date: 20230908T170252Z\r\n" ++
-    try headers.append("x-amz-content-sha256", "fcde2b2edba56bf408601fb721fe9b5c338d10ee429ea04fae5511b68fbf8fb9");
+        "x-amz-content-sha256: fcde2b2edba56bf408601fb721fe9b5c338d10ee429ea04fae5511b68fbf8fb9\r\n" ++
-    try headers.append("Authorization", "AWS4-HMAC-SHA256 Credential=ACCESS/20230908/us-west-2/s3/aws4_request, SignedHeaders=accept;content-length;content-type;host;x-amz-content-sha256;x-amz-date;x-amz-storage-class, Signature=fcc43ce73a34c9bd1ddf17e8a435f46a859812822f944f9eeb2aabcd64b03523");
+        "Authorization: AWS4-HMAC-SHA256 Credential=ACCESS/20230908/us-west-2/s3/aws4_request, SignedHeaders=accept;content-length;content-type;host;x-amz-content-sha256;x-amz-date;x-amz-storage-class, Signature=fcc43ce73a34c9bd1ddf17e8a435f46a859812822f944f9eeb2aabcd64b03523\r\n\r\nbar";
-
+    var read_buffer: [1024]u8 = undefined;
-    var buf = "bar".*;
+    @memcpy(read_buffer[0..req.len], req);
-    var fis = std.io.fixedBufferStream(&buf);
+    var server: std.http.Server = .{
-    const request = std.http.Server.Request{
+        .connection = undefined,
-        .method = std.http.Method.PUT,
+        .state = .ready,
-        .target = "/mysfitszj3t6webstack-hostingbucketa91a61fe-1ep3ezkgwpxr0/i/am/a/teapot/foo?x-id=PutObject",
+        .read_buffer = &read_buffer,
-        .version = .@"HTTP/1.1",
+        .read_buffer_len = req.len,
-        .content_length = 3,
+        .next_request_start = 0,
-        .headers = headers,
+    };
-        .parser = std.http.protocol.HeadersParser.initDynamic(std.math.maxInt(usize)),
+    var request: std.http.Server.Request = .{
+        .server = &server,
+        .head_end = req.len - 3,
+        .head = try std.http.Server.Request.Head.parse(read_buffer[0 .. req.len - 3]),
+        .reader_state = undefined,
     };
 
     // std.testing.log_level = .debug;
-    try std.testing.expect(try verifyServerRequest(allocator, request, fis.reader(), struct {
+    var fbs = std.io.fixedBufferStream("bar");
+    try std.testing.expect(try verifyServerRequest(allocator, &request, fbs.reader(), struct {
         cred: Credentials,
 
         const Self = @This();
@@ -1122,34 +1151,51 @@ test "can verify server request without x-amz-content-sha256" {
     test_credential = Credentials.init(allocator, access_key, secret_key, null);
     defer test_credential.?.deinit();
 
-    var headers = std.http.Headers.init(allocator);
+    const head =
-    defer headers.deinit();
+        "POST / HTTP/1.1\r\n" ++
-    try headers.append("Connection", "keep-alive");
+        "Connection: keep-alive\r\n" ++
-    try headers.append("Accept-Encoding", "gzip, deflate, zstd");
+        "Accept-Encoding: gzip, deflate, zstd\r\n" ++
-    try headers.append("TE", "gzip, deflate, trailers");
+        "TE: gzip, deflate, trailers\r\n" ++
-    try headers.append("Accept", "application/json");
+        "Accept: application/json\r\n" ++
-    try headers.append("X-Amz-Target", "DynamoDB_20120810.CreateTable");
+        "X-Amz-Target: DynamoDB_20120810.CreateTable\r\n" ++
-    try headers.append("Host", "dynamodb.us-west-2.amazonaws.com");
+        "Host: dynamodb.us-west-2.amazonaws.com\r\n" ++
-    try headers.append("User-Agent", "zig-aws 1.0");
+        "User-Agent: zig-aws 1.0\r\n" ++
-    try headers.append("Content-Type", "application/x-amz-json-1.0");
+        "Content-Type: application/x-amz-json-1.0\r\n" ++
-    try headers.append("Content-Length", "403");
+        "Content-Length: 403\r\n" ++
-    try headers.append("X-Amz-Date", "20240224T154944Z");
+        "X-Amz-Date: 20240224T154944Z\r\n" ++
-    try headers.append("x-amz-content-sha256", "fcde2b2edba56bf408601fb721fe9b5c338d10ee429ea04fae5511b68fbf8fb9");
+        "x-amz-content-sha256: fcde2b2edba56bf408601fb721fe9b5c338d10ee429ea04fae5511b68fbf8fb9\r\n" ++
-    try headers.append("Authorization", "AWS4-HMAC-SHA256 Credential=ACCESS/20240224/us-west-2/dynamodb/aws4_request, SignedHeaders=content-type;host;x-amz-date;x-amz-target, Signature=8fd23dc7dbcb36c4aa54207a7118f8b9fcd680da73a0590b498e9577ff68ec33");
+        "Authorization: AWS4-HMAC-SHA256 Credential=ACCESS/20240224/us-west-2/dynamodb/aws4_request, SignedHeaders=content-type;host;x-amz-date;x-amz-target, Signature=8fd23dc7dbcb36c4aa54207a7118f8b9fcd680da73a0590b498e9577ff68ec33\r\n\r\n";
     const body =
         \\{"AttributeDefinitions": [{"AttributeName": "Artist", "AttributeType": "S"}, {"AttributeName": "SongTitle", "AttributeType": "S"}], "TableName": "MusicCollection", "KeySchema": [{"AttributeName": "Artist", "KeyType": "HASH"}, {"AttributeName": "SongTitle", "KeyType": "RANGE"}], "ProvisionedThroughput": {"ReadCapacityUnits": 5, "WriteCapacityUnits": 5}, "Tags": [{"Key": "Owner", "Value": "blueTeam"}]}
     ;
+    const req_data = head ++ body;
+    var read_buffer: [2048]u8 = undefined;
+    @memcpy(read_buffer[0..req_data.len], req_data);
+    var server: std.http.Server = .{
+        .connection = undefined,
+        .state = .ready,
+        .read_buffer = &read_buffer,
+        .read_buffer_len = req_data.len,
+        .next_request_start = 0,
+    };
+    var request: std.http.Server.Request = .{
+        .server = &server,
+        .head_end = head.len,
+        .head = try std.http.Server.Request.Head.parse(read_buffer[0..head.len]),
+        .reader_state = undefined,
+    };
     {
-        var h = try std.ArrayList(base.Header).initCapacity(allocator, headers.list.items.len);
+        var h = std.ArrayList(std.http.Header).init(allocator);
         defer h.deinit();
         const signed_headers = &[_][]const u8{ "content-type", "host", "x-amz-date", "x-amz-target" };
-        for (headers.list.items) |source| {
+        var it = request.iterateHeaders();
+        while (it.next()) |source| {
             var match = false;
             for (signed_headers) |s| {
                 match = std.ascii.eqlIgnoreCase(s, source.name);
                 if (match) break;
             }
-            if (match) h.appendAssumeCapacity(.{ .name = source.name, .value = source.value });
+            if (match) try h.append(.{ .name = source.name, .value = source.value });
         }
         const req = base.Request{
             .path = "/",
@@ -1187,16 +1233,8 @@ test "can verify server request without x-amz-content-sha256" {
 
     { // verification
         var fis = std.io.fixedBufferStream(body[0..]);
-        const request = std.http.Server.Request{
-            .method = std.http.Method.POST,
-            .target = "/",
-            .version = .@"HTTP/1.1",
-            .content_length = 403,
-            .headers = headers,
-            .parser = std.http.protocol.HeadersParser.initDynamic(std.math.maxInt(usize)),
-        };
 
-        try std.testing.expect(try verifyServerRequest(allocator, request, fis.reader(), struct {
+        try std.testing.expect(try verifyServerRequest(allocator, &request, fis.reader(), struct {
             cred: Credentials,
 
             const Self = @This();

src/http_client_17015_issue.zig

@@ -1,155 +0,0 @@
-const std = @import("std");
-const Uri = std.Uri;
-
-///////////////////////////////////////////////////////////////////////////
-/// This function imported from:
-/// https://github.com/ziglang/zig/blob/0.11.0/lib/std/http/Client.zig#L538-L636
-///
-/// The first commit of this file will be unchanged from 0.11.0 to more
-/// clearly indicate changes moving forward. The plan is to change
-/// only the two w.print lines for req.uri 16 and 18 lines down from this comment
-///////////////////////////////////////////////////////////////////////////
-/// Send the request to the server.
-pub fn start(req: *std.http.Client.Request) std.http.Client.Request.StartError!void {
-    var buffered = std.io.bufferedWriter(req.connection.?.data.writer());
-    const w = buffered.writer();
-
-    try w.writeAll(@tagName(req.method));
-    try w.writeByte(' ');
-
-    if (req.method == .CONNECT) {
-        try w.writeAll(req.uri.host.?);
-        try w.writeByte(':');
-        try w.print("{}", .{req.uri.port.?});
-    } else if (req.connection.?.data.proxied) {
-        // proxied connections require the full uri
-        try format(req.uri, "+/", .{}, w);
-    } else {
-        try format(req.uri, "/", .{}, w);
-    }
-
-    try w.writeByte(' ');
-    try w.writeAll(@tagName(req.version));
-    try w.writeAll("\r\n");
-
-    if (!req.headers.contains("host")) {
-        try w.writeAll("Host: ");
-        try w.writeAll(req.uri.host.?);
-        try w.writeAll("\r\n");
-    }
-
-    if (!req.headers.contains("user-agent")) {
-        try w.writeAll("User-Agent: zig/");
-        try w.writeAll(@import("builtin").zig_version_string);
-        try w.writeAll(" (std.http)\r\n");
-    }
-
-    if (!req.headers.contains("connection")) {
-        try w.writeAll("Connection: keep-alive\r\n");
-    }
-
-    if (!req.headers.contains("accept-encoding")) {
-        try w.writeAll("Accept-Encoding: gzip, deflate, zstd\r\n");
-    }
-
-    if (!req.headers.contains("te")) {
-        try w.writeAll("TE: gzip, deflate, trailers\r\n");
-    }
-
-    const has_transfer_encoding = req.headers.contains("transfer-encoding");
-    const has_content_length = req.headers.contains("content-length");
-
-    if (!has_transfer_encoding and !has_content_length) {
-        switch (req.transfer_encoding) {
-            .chunked => try w.writeAll("Transfer-Encoding: chunked\r\n"),
-            .content_length => |content_length| try w.print("Content-Length: {d}\r\n", .{content_length}),
-            .none => {},
-        }
-    } else {
-        if (has_content_length) {
-            const content_length = std.fmt.parseInt(u64, req.headers.getFirstValue("content-length").?, 10) catch return error.InvalidContentLength;
-
-            req.transfer_encoding = .{ .content_length = content_length };
-        } else if (has_transfer_encoding) {
-            const transfer_encoding = req.headers.getFirstValue("transfer-encoding").?;
-            if (std.mem.eql(u8, transfer_encoding, "chunked")) {
-                req.transfer_encoding = .chunked;
-            } else {
-                return error.UnsupportedTransferEncoding;
-            }
-        } else {
-            req.transfer_encoding = .none;
-        }
-    }
-
-    try w.print("{}", .{req.headers});
-
-    try w.writeAll("\r\n");
-
-    try buffered.flush();
-}
-
-///////////////////////////////////////////////////////////////////////////
-/// This function imported from:
-/// https://github.com/ziglang/zig/blob/0.11.0/lib/std/Uri.zig#L209-L264
-///
-/// The first commit of this file will be unchanged from 0.11.0 to more
-/// clearly indicate changes moving forward. The plan is to change
-/// only the writeEscapedPath call 42 lines down from this comment
-///////////////////////////////////////////////////////////////////////////
-pub fn format(
-    uri: Uri,
-    comptime fmt: []const u8,
-    options: std.fmt.FormatOptions,
-    writer: anytype,
-) @TypeOf(writer).Error!void {
-    _ = options;
-
-    const needs_absolute = comptime std.mem.indexOf(u8, fmt, "+") != null;
-    const needs_path = comptime std.mem.indexOf(u8, fmt, "/") != null or fmt.len == 0;
-    const needs_fragment = comptime std.mem.indexOf(u8, fmt, "#") != null;
-
-    if (needs_absolute) {
-        try writer.writeAll(uri.scheme);
-        try writer.writeAll(":");
-        if (uri.host) |host| {
-            try writer.writeAll("//");
-
-            if (uri.user) |user| {
-                try writer.writeAll(user);
-                if (uri.password) |password| {
-                    try writer.writeAll(":");
-                    try writer.writeAll(password);
-                }
-                try writer.writeAll("@");
-            }
-
-            try writer.writeAll(host);
-
-            if (uri.port) |port| {
-                try writer.writeAll(":");
-                try std.fmt.formatInt(port, 10, .lower, .{}, writer);
-            }
-        }
-    }
-
-    if (needs_path) {
-        if (uri.path.len == 0) {
-            try writer.writeAll("/");
-        } else {
-            try writer.writeAll(uri.path); // do not mess with our path
-        }
-
-        if (uri.query) |q| {
-            try writer.writeAll("?");
-            try Uri.writeEscapedQuery(writer, q);
-        }
-
-        if (needs_fragment) {
-            if (uri.fragment) |f| {
-                try writer.writeAll("#");
-                try Uri.writeEscapedQuery(writer, f);
-            }
-        }
-    }
-}

src/json.zig

@@ -1361,7 +1361,7 @@ test "Value.jsonStringify" {
         var buffer: [10]u8 = undefined;
         var fbs = std.io.fixedBufferStream(&buffer);
         try (Value{ .Float = 42 }).jsonStringify(.{}, fbs.writer());
-        try testing.expectEqualSlices(u8, fbs.getWritten(), "4.2e+01");
+        try testing.expectEqualSlices(u8, fbs.getWritten(), "4.2e1");
     }
     {
         var buffer: [10]u8 = undefined;
@@ -1762,7 +1762,7 @@ fn parseInternal(comptime T: type, token: Token, tokens: *TokenStream, options:
                     var r: T = undefined;
                     const source_slice = stringToken.slice(tokens.slice, tokens.i - 1);
                     switch (stringToken.escapes) {
-                        .None => mem.copy(u8, &r, source_slice),
+                        .None => @memcpy(&r, source_slice),
                         .Some => try unescapeValidString(&r, source_slice),
                     }
                     return r;
@@ -2019,7 +2019,7 @@ test "parse into tagged union" {
     }
 
     { // failing allocations should be bubbled up instantly without trying next member
-        var fail_alloc = testing.FailingAllocator.init(testing.allocator, 0);
+        var fail_alloc = testing.FailingAllocator.init(testing.allocator, .{ .fail_index = 0 });
         const options = ParseOptions{ .allocator = fail_alloc.allocator() };
         const T = union(enum) {
             // both fields here match the input
@@ -2067,7 +2067,7 @@ test "parse union bubbles up AllocatorRequired" {
 }
 
 test "parseFree descends into tagged union" {
-    var fail_alloc = testing.FailingAllocator.init(testing.allocator, 1);
+    var fail_alloc = testing.FailingAllocator.init(testing.allocator, .{ .fail_index = 1 });
     const options = ParseOptions{ .allocator = fail_alloc.allocator() };
     const T = union(enum) {
         int: i32,
@@ -2808,7 +2808,7 @@ pub fn stringify(
     const T = @TypeOf(value);
     switch (@typeInfo(T)) {
         .Float, .ComptimeFloat => {
-            return std.fmt.formatFloatScientific(value, std.fmt.FormatOptions{}, out_stream);
+            return std.fmt.format(out_stream, "{e}", .{value});
         },
         .Int, .ComptimeInt => {
             return std.fmt.formatIntValue(value, "", std.fmt.FormatOptions{}, out_stream);
@@ -2827,14 +2827,14 @@ pub fn stringify(
             }
         },
         .Enum => {
-            if (comptime std.meta.trait.hasFn("jsonStringify")(T)) {
+            if (comptime std.meta.hasFn(T, "jsonStringify")) {
                 return value.jsonStringify(options, out_stream);
             }
 
             @compileError("Unable to stringify enum '" ++ @typeName(T) ++ "'");
         },
         .Union => {
-            if (comptime std.meta.trait.hasFn("jsonStringify")(T)) {
+            if (comptime std.meta.hasFn(T, "jsonStringify")) {
                 return value.jsonStringify(options, out_stream);
             }
 
@@ -2850,7 +2850,7 @@ pub fn stringify(
             }
         },
         .Struct => |S| {
-            if (comptime std.meta.trait.hasFn("jsonStringify")(T)) {
+            if (comptime std.meta.hasFn(T, "jsonStringify")) {
                 return value.jsonStringify(options, out_stream);
             }
 
@@ -2874,11 +2874,11 @@ pub fn stringify(
                     try child_whitespace.outputIndent(out_stream);
                 }
                 var field_written = false;
-                if (comptime std.meta.trait.hasFn("jsonStringifyField")(T))
+                if (comptime std.meta.hasFn(T, "jsonStringifyField"))
                     field_written = try value.jsonStringifyField(Field.name, child_options, out_stream);
 
                 if (!field_written) {
-                    if (comptime std.meta.trait.hasFn("fieldNameFor")(T)) {
+                    if (comptime std.meta.hasFn(T, "fieldNameFor")) {
                         const name = value.fieldNameFor(Field.name);
                         try stringify(name, options, out_stream);
                     } else {
@@ -3057,11 +3057,11 @@ test "stringify basic types" {
     try teststringify("null", @as(?u8, null), StringifyOptions{});
     try teststringify("null", @as(?*u32, null), StringifyOptions{});
     try teststringify("42", 42, StringifyOptions{});
-    try teststringify("4.2e+01", 42.0, StringifyOptions{});
+    try teststringify("4.2e1", 42.0, StringifyOptions{});
     try teststringify("42", @as(u8, 42), StringifyOptions{});
     try teststringify("42", @as(u128, 42), StringifyOptions{});
-    try teststringify("4.2e+01", @as(f32, 42), StringifyOptions{});
+    try teststringify("4.2e1", @as(f32, 42), StringifyOptions{});
-    try teststringify("4.2e+01", @as(f64, 42), StringifyOptions{});
+    try teststringify("4.2e1", @as(f64, 42), StringifyOptions{});
     try teststringify("\"ItBroke\"", @as(anyerror, error.ItBroke), StringifyOptions{});
 }
 

src/main.zig

@@ -38,8 +38,8 @@ pub fn log(
     nosuspend stderr.print(prefix ++ format ++ "\n", args) catch return;
 }
 
-pub const std_options = struct {
+pub const std_options = std.Options{
-    pub const logFn = log;
+    .logFn = log,
 };
 const Tests = enum {
     query_no_input,
@@ -71,7 +71,7 @@ pub fn main() anyerror!void {
     defer bw.flush() catch unreachable;
     const stdout = bw.writer();
     var arg0: ?[]const u8 = null;
-    var proxy: ?std.http.Client.HttpProxy = null;
+    var proxy: ?std.http.Client.Proxy = null;
     while (args.next()) |arg| {
         if (arg0 == null) arg0 = arg;
         if (std.mem.eql(u8, "-h", arg) or std.mem.eql(u8, "--help", arg)) {
@@ -353,17 +353,22 @@ pub fn main() anyerror!void {
     std.log.info("===== Tests complete =====", .{});
 }
 
-fn proxyFromString(string: []const u8) !std.http.Client.HttpProxy {
+fn proxyFromString(string: []const u8) !std.http.Client.Proxy {
-    var rc = std.http.Client.HttpProxy{
+    var rc = std.http.Client.Proxy{
         .protocol = undefined,
         .host = undefined,
+        .authorization = null,
+        .port = undefined,
+        .supports_connect = true, // TODO: Is this a good default?
     };
     var remaining: []const u8 = string;
     if (std.mem.startsWith(u8, string, "http://")) {
         remaining = remaining["http://".len..];
         rc.protocol = .plain;
+        rc.port = 80;
     } else if (std.mem.startsWith(u8, string, "https://")) {
         remaining = remaining["https://".len..];
+        rc.port = 443;
         rc.protocol = .tls;
     } else return error.InvalidScheme;
     var split_iterator = std.mem.split(u8, remaining, ":");

src/servicemodel.zig

@@ -21,7 +21,7 @@ pub fn Services(comptime service_imports: anytype) type {
     // finally, generate the type
     return @Type(.{
         .Struct = .{
-            .layout = .Auto,
+            .layout = .auto,
             .fields = &fields,
             .decls = &[_]std.builtin.Type.Declaration{},
             .is_tuple = false,

src/url.zig

@@ -1,15 +1,14 @@
 const std = @import("std");
 
-fn defaultTransformer(allocator: std.mem.Allocator, field_name: []const u8, options: EncodingOptions) anyerror![]const u8 {
+fn defaultTransformer(allocator: std.mem.Allocator, field_name: []const u8) anyerror![]const u8 {
-    _ = options;
     _ = allocator;
     return field_name;
 }
 
-pub const fieldNameTransformerFn = *const fn (std.mem.Allocator, []const u8, EncodingOptions) anyerror![]const u8;
+pub const fieldNameTransformerFn = *const fn (std.mem.Allocator, []const u8) anyerror![]const u8;
 
 pub const EncodingOptions = struct {
-    field_name_transformer: fieldNameTransformerFn = &defaultTransformer,
+    field_name_transformer: fieldNameTransformerFn = defaultTransformer,
 };
 
 pub fn encode(allocator: std.mem.Allocator, obj: anytype, writer: anytype, comptime options: EncodingOptions) !void {
@@ -26,7 +25,7 @@ fn encodeStruct(
 ) !bool {
     var rc = first;
     inline for (@typeInfo(@TypeOf(obj)).Struct.fields) |field| {
-        const field_name = try options.field_name_transformer(allocator, field.name, options);
+        const field_name = try options.field_name_transformer(allocator, field.name);
         defer if (options.field_name_transformer.* != defaultTransformer)
             allocator.free(field_name);
         // @compileLog(@typeInfo(field.field_type).Pointer);

src/xml_shaper.zig

@@ -219,9 +219,9 @@ fn parseInternal(comptime T: type, element: *xml.Element, options: ParseOptions)
 
             log.debug("Processing fields in struct: {s}", .{@typeName(T)});
             inline for (struct_info.fields, 0..) |field, i| {
-                var name = field.name;
+                var name: []const u8 = field.name;
                 var found_value = false;
-                if (comptime std.meta.trait.hasFn("fieldNameFor")(T))
+                if (comptime std.meta.hasFn(T, "fieldNameFor"))
                     name = r.fieldNameFor(field.name);
                 log.debug("Field name: {s}, Element: {s}, Adjusted field name: {s}", .{ field.name, element.tag, name });
                 var iterator = element.findChildrenByTag(name);