build type based on provider, detect properly
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cab07bd134
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@ -1,46 +1,62 @@
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const std = @import("std");
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/// Determines the style of interface between what is in a main program
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/// and the provider system. This should not be an exhaustive set of steps,
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/// but a higher level "how do I get the handler registered". So only what
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/// would describe a runtime difference
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pub const BuildType = enum {
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awslambda_package,
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awslambda_iam,
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awslambda_deploy,
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awslambda_run,
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awslambda,
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exe_run,
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standalone_run,
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// cloudflare_* (TBD)
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// flexilib_* (TBD)
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cloudflare,
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flexilib,
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};
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// awslambda_package
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// awslambda_iam
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// awslambda_deploy
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// awslambda_run
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// exe_run // TODO: Can we skip this?
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// cloudflare_* (TBD)
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// flexilib_* (TBD)
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pub fn configureBuild(b: *std.Build, exe: *std.Build.Step.Compile) !void {
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// Make our target platform visible to runtime through an import
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// called "build_options"
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var options_module: *std.Build.Module = undefined;
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{
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// We need to go through the command line args, look for argument(s)
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// between "build" and anything prefixed with "-". First take, blow up
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// if there is more than one. That's the step we're rolling with
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// These frameworks I believe are inextricably tied to both build and
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// run behavior
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const options = b.addOptions();
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options.addOption(BuildType, "build_type", .exe_run);
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exe.addOptions("build_options", options);
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options_module = exe.modules.get("build_options").?;
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}
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// Add modules
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{
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exe.addAnonymousModule("universal_lambda_handler", .{
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.source_file = .{ .path = "upstream/src/universal_lambda.zig" },
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.dependencies = &[_]std.Build.ModuleDependency{.{
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.name = "build_options",
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.module = options_module,
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}},
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});
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}
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pub fn configureBuild(b: *std.Build, exe: *std.Build.Step.Compile) !void {
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// Add steps
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try @import("lambdabuild.zig").configureBuild(b, exe);
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// Add options module so we can let our universal_lambda know what
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// type of interface is necessary
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// Add module
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exe.addAnonymousModule("universal_lambda_handler", .{
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.source_file = .{ .path = "upstream/src/universal_lambda.zig" },
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.dependencies = &[_]std.Build.ModuleDependency{.{
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.name = "build_options",
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.module = try createOptionsModule(b, exe),
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}},
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});
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}
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/// Make our target platform visible to runtime through an import
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/// called "build_options". This will also be available to the consuming
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/// executable if needed
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fn createOptionsModule(b: *std.Build, exe: *std.Build.Step.Compile) !*std.Build.Module {
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// We need to go through the command line args, look for argument(s)
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// between "build" and anything prefixed with "-". First take, blow up
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// if there is more than one. That's the step we're rolling with
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// These frameworks I believe are inextricably tied to both build and
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// run behavior.
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//
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var args = try std.process.argsAlloc(b.allocator);
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defer b.allocator.free(args);
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const options = b.addOptions();
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options.addOption(BuildType, "build_type", findBuildType(args) orelse .exe_run);
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exe.addOptions("build_options", options);
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return exe.modules.get("build_options").?;
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}
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fn findBuildType(build_args: [][:0]u8) ?BuildType {
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var rc: ?BuildType = null;
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for (build_args[1..]) |arg| {
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if (std.mem.startsWith(u8, arg, "-")) break; // we're done as soon as we get to options
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inline for (std.meta.fields(BuildType)) |field| {
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if (std.mem.startsWith(u8, arg, field.name)) {
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if (rc != null)
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@panic("Sorry, we are not smart enough to build a single handler for multiple simultaneous providers");
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rc = @field(BuildType, field.name);
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}
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}
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}
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return rc;
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}
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