upgrade to zig 0.13.0

.github/workflows/zig-build.yaml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: elerch/setup-zig@v3
         with:
-          version: 0.12.0
+          version: 0.13.0
       - uses: elerch/zig-action-cache@v1.1.6
       - name: Build project
         run: zig build --summary all

.gitignore

@@ -1,2 +1,3 @@
 zig-cache
 zig-out
+.zig-cache

Dockerfile

@@ -6,7 +6,7 @@ RUN apt-get update \
          ca-certificates \
          curl \
          xz-utils \
-    && curl https://ziglang.org/download/0.12.0/zig-linux-x86_64-0.12.0.tar.xz | tar -C /usr/local/ -xJ \
+    && curl https://ziglang.org/download/0.13.0/zig-linux-x86_64-0.13.0.tar.xz | tar -C /usr/local/ -xJ \
     && apt-get -y remove curl xz-utils  \
     && ln -s /usr/local/zig*/zig /usr/local/bin \
     && rm -rf /var/lib/apt/lists/*

build.zig

@@ -19,7 +19,7 @@ pub fn build(b: *std.Build) void {
         .name = "fontfinder",
         // In this case the main source file is merely a path, however, in more
         // complicated build scripts, this could be a generated file.
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });
@@ -59,7 +59,7 @@ pub fn build(b: *std.Build) void {
     // 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/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });