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zig build: add --fetch argument

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closes #14280
This commit is contained in:
Andrew Kelley 2023-10-07 23:36:32 -07:00
parent b2fefc8473
commit a605bd9887
2 changed files with 7 additions and 0 deletions
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1
lib/build_runner.zig
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@ -997,6 +997,7 @@ fn usage(builder: *std.Build, already_ran_build: bool, out_stream: anytype) !voi
\\ -j<N> Limit concurrent jobs (default is to use all CPU cores)
\\ --maxrss <bytes> Limit memory usage (default is to use available memory)
\\ --skip-oom-steps Instead of failing, skip steps that would exceed --maxrss
\\ --fetch Exit after fetching dependency tree
\\
\\Project-Specific Options:
\\

6
src/main.zig
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@ -4621,6 +4621,7 @@ pub const usage_build =
\\ --global-cache-dir [path] Override path to global Zig cache directory
\\ --zig-lib-dir [arg] Override path to Zig lib directory
\\ --build-runner [file] Override path to build runner
\\ --fetch Exit after fetching dependency tree
\\ -h, --help Print this help and exit
\\
;
@ -4643,6 +4644,7 @@ pub fn cmdBuild(gpa: Allocator, arena: Allocator, args: []const []const u8) !voi
var child_argv = std.ArrayList([]const u8).init(arena);
var reference_trace: ?u32 = null;
var debug_compile_errors = false;
var fetch_only = false;
const argv_index_exe = child_argv.items.len;
_ = try child_argv.addOne();
@ -4692,6 +4694,8 @@ pub fn cmdBuild(gpa: Allocator, arena: Allocator, args: []const []const u8) !voi
} else if (mem.eql(u8, arg, "-freference-trace")) {
try child_argv.append(arg);
reference_trace = 256;
} else if (mem.eql(u8, arg, "--fetch")) {
fetch_only = true;
} else if (mem.startsWith(u8, arg, "-freference-trace=")) {
try child_argv.append(arg);
const num = arg["-freference-trace=".len..];
@ -4884,6 +4888,8 @@ pub fn cmdBuild(gpa: Allocator, arena: Allocator, args: []const []const u8) !voi
process.exit(1);
}
if (fetch_only) return cleanExit();
try job_queue.createDependenciesModule(&dependencies_zig_src);
const deps_mod = m: {