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nix3-develop: export NIX_LOG_FD

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As far as I can tell, there's no harm to let stdenv know that they can
write to file descriptor 2 which is stderr inside of a nix3-develop
shell.

Contributes towards #336.

Change-Id: I51dcbcbc19a1698a0d1255f9d943d9ebd15d115d
Signed-off-by: Raito Bezarius <raito@lix.systems>
This commit is contained in:
Raito Bezarius
2025-12-08 09:12:40 +00:00
parent be3e4bf78e
commit 908acdfa2f
2 changed files with 6 additions and 0 deletions
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tests/functional/nix-shell/basic.sh
+3
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@@ -173,6 +173,9 @@ shellDrv=$(nix-instantiate "$shellDotNix" -A shellDrv.out)
nix develop $shellDrv -c bash -c '[[ -n $stdenv ]]'
# Test $NIX_LOG_FD
expectStderr 0 nix develop $shellDrv -c bash -c 'echo hello > $NIX_LOG_FD' |& grepQuiet 'hello'
nix print-dev-env $shellDrv > $TEST_ROOT/dev-env2.sh
nix print-dev-env $shellDrv --json > $TEST_ROOT/dev-env2.json