mirror of
https://github.com/kuhyx/testsAndMisc.git
synced 2026-11-10 23:07:03 +01:00
Krzysztof kuhy Rudnicki
071963b92b
`git commit`/`git push` export GIT_DIR to every hook they run, and the
flutter tool shells out to git to identify its own SDK. `git -C
"$FLUTTER_ROOT" rev-parse HEAD` in bin/internal/shared.sh does not beat an
inherited GIT_DIR -- `-C` only changes directory, GIT_DIR overrides
repository discovery outright:
$ git -C /opt/flutter rev-parse HEAD
058e0af2c2... <- Flutter's HEAD
$ GIT_DIR=~/diet-guard/.git git -C /opt/flutter rev-parse HEAD
84bd550331... <- diet-guard's HEAD
So inside a hook, flutter reports the project as the SDK:
Flutter 3.47.0-0.1.pre • channel main • https://github.com/kuhyx/diet-guard
pub then resolves the SDK as 0.0.0-unknown and every version constraint
becomes unsatisfiable. flutter also writes that into its own version cache,
so the wrong answer outlives the hook and follows the next caller into an
unrelated repository -- which is why the identical command passes when you
re-run it by hand and fails again on the next push.
diet-guard's pre-push gate hit this today. Clearing the variables per call in
each hook works, and screen-locker and diet-guard now do, but only for as
long as every future hook author remembers -- deployment hygiene, not a fix.
This installs a wrapper ahead of /usr/bin on PATH that strips them for every
caller in every repo, covering both flutter and dart. It removes its own
directory from PATH before exec so the Flutter entry point's internal `which
flutter` cannot loop back into it, and it verifies itself by running flutter
against a throwaway poisoned GIT_DIR and failing unless the real SDK comes
back.
Not patching bin/internal/shared.sh: that file belongs to the flutter-bin
package, so the next update would silently restore the bug. Upstream already
unsets these variables in content_aware_hash.sh and update_engine_version.sh,
just not in the version path.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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| cleanup-2026-05 | ||
| explanations | ||
| superpowers | ||
| mcp-shortlist.html | ||