[Pkg-rust-maintainers] Bug#1078453: dh-cargo: cargo-auto-test fails to remove color codes on debci

Sat Aug 10 18:28:54 BST 2024

Package: dh-cargo
Version: 31
Severity: important
X-Debbugs-Cc: debian-rust at lists.debian.org, n at sail.ng

Dear Maintainer,

cargo-auto-test currently runs cargo with --color=always if stderr is open:

	if [ -t 2 ]; then flags="--color=always"; export RUSTDOCFLAGS="--color=always"; fi

then proceeds to remove color codes from the resulting log:

	sed -i -e 's/\x1b\[[0-9;]*m//g' "$rundir/run-$n.log" # rm ansi colour codes

However, this doesn't work on debci, resulting in an unreadable blob:

164s failures:
164s
164s ---- choose::override_variable stdout ----
164s Bad status: [1mDiff[0m [31m< left[0m / [32mright >[0m :
164s  Some(
164s [31m<    [0m[1;48;5;52;31m1[0m[31m,[0m
164s [32m>    [0m[1;48;5;22;32m0[0m[32m,[0m
164s  )
164s
164s Bad stdout: [1mDiff[0m [31m< left[0m / [32mright >[0m :
164s [31m<""[0m
164s [32m>"[0m[1;48;5;22;32mB\n[0m[32m"[0m
164s
164s Bad stderr: [1mDiff[0m [31m< left[0m / [32mright >[0m :
164s [31m<"e[0m[1;48;5;52;31mrror: Failed to write to
[0m[31mcho[0m[1;48;5;52;31moser[0m[31m [0m[1;48;5;52;31m`head -n1`:
[0m[31mB[0m[1;48;5;52;31mroken pipe (os error 32)[0m[31m\n"[0m
164s [32m>"echo B\n"[0m
164s
164s thread 'choose::override_variable' panicked at tests/choose.rs:61:6:
164s Output mismatch.

as seen in https://ci.debian.net/packages/r/rust-just/testing/s390x/50327769/

-- 
Sdrager,
Blair Noctis

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