Most likely caused by `grep -q` processing too fast when steps are
filtered. Can sometimes be reproduced with this command (you might
need several retries to hit it):
```console
$ for i in {0..20}; do zig build --list-steps | grep -q test; done
error: BrokenPipe
/usr/lib64/zig/9999/lib/compiler/build_runner.zig:1229:9: 0x1518f3e in
steps__anon_4736 (build)
try out_stream.print(" {s:<28} {s}\n", .{ name,
top_level_step.description });
^
/usr/lib64/zig/9999/lib/compiler/build_runner.zig:374:9: 0x1511b81 in main
(build)
return steps(builder, stdout_writer);
^
error: the following build command failed with exit code 1:
/home/bratishkaerik/github.com/zig/.zig-cache/o/4b3846557c333ec9e467b7cc136d3698/build
/usr/lib64/zig/9999/bin/zig /usr/lib64/zig/9999/lib
/home/bratishkaerik/github.com/zig
/home/bratishkaerik/github.com/zig/.zig-cache /home/bratishkaerik/.cache/zig
--seed 0x86f5c718 -Z7b5e4ad814524daf --list-steps
```
Caught this today when I merged and tested `dev-lang/zig:9999` 9 times
in a row because I was checking patch for upstream. Out of these 9 times
it failed only once. I couldn't reproduce this on `sys-fs/ncdu` or
`gui-wm/river::guru`, my guess here is that `test` step is listed last
there, so zig pipe catches up with it.
(GitHub PR https://www.github.com/gentoo/gentoo/pull/39723)
Signed-off-by: Eric Joldasov <bratishkae...@landless-city.net>
---
eclass/zig.eclass | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/eclass/zig.eclass b/eclass/zig.eclass
index e838616ef72a..2a0178e66d71 100644
--- a/eclass/zig.eclass
+++ b/eclass/zig.eclass
@@ -520,9 +520,10 @@ zig_src_test() {
# by whitespaces is not enough for some cases.
# We probably need something like "--list-steps names_only".
# In practice, almost nobody sets such names.
+ # Ignore failures like rare random "error.BrokenPipe" here.
+ # If they are real, they would appear in "ezig build test" anyway.
if grep -q '^[ ]*test[ ]' < <(
- nonfatal ezig build --list-steps "${args[@]}" ||
- die "ZBS: listing steps failed"
+ nonfatal ezig build --list-steps "${args[@]}"
); then
einfo "ZBS: testing with: ${args[@]}"
nonfatal ezig build test "${args[@]}" ||
--
2.47.0
