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std.Build.Step: split evalChildProcess into two functions

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Now there is `captureChildProcess` which gives access to the
`std.process.Child.RunResult`, which is useful for accessing the stdout.

It also accepts and passes an optional `std.Progress.Node` to the child.
This commit is contained in:
Andrew Kelley 2024-06-16 19:29:05 -07:00
parent 42658de762
commit af7afbd08b
1 changed files with 13 additions and 2 deletions
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15
lib/std/Build/Step.zig
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@ -269,7 +269,17 @@ const Allocator = std.mem.Allocator;
const assert = std.debug.assert;
const builtin = @import("builtin");
pub fn evalChildProcess(s: *Step, argv: []const []const u8) !void {
pub fn evalChildProcess(s: *Step, argv: []const []const u8) ![]u8 {
const run_result = try captureChildProcess(s, std.Progress.Node.none, argv);
try handleChildProcessTerm(s, run_result.term, null, argv);
return run_result.stdout;
}
pub fn captureChildProcess(
s: *Step,
progress_node: std.Progress.Node,
argv: []const []const u8,
) !std.process.Child.RunResult {
const arena = s.owner.allocator;
try handleChildProcUnsupported(s, null, argv);
@ -278,13 +288,14 @@ pub fn evalChildProcess(s: *Step, argv: []const []const u8) !void {
const result = std.process.Child.run(.{
.allocator = arena,
.argv = argv,
.progress_node = progress_node,
}) catch |err| return s.fail("unable to spawn {s}: {s}", .{ argv[0], @errorName(err) });
if (result.stderr.len > 0) {
try s.result_error_msgs.append(arena, result.stderr);
}
try handleChildProcessTerm(s, result.term, null, argv);
return result;
}
pub fn fail(step: *Step, comptime fmt: []const u8, args: anytype) error{ OutOfMemory, MakeFailed } {