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package: return from shellHook correctly

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If our shellHook is being run from a nested nix-shell (see 7a12bc200¹),
then (I think) it is run from a bash function due to the nesting, then
`return` is correct. If its `eval`'d though, then there isn't really a
correct way to early exit. So we can just unconditionally be executed in
a function.

Basically, we have IIFE at home.

[1]: 7a12bc2007

Change-Id: Iacad25cbbf66cde2911604e6061e56ad6212af7e
This commit is contained in:
Qyriad 2024-05-29 19:57:58 -06:00
parent 68937f2b64
commit eac3546d50
1 changed files with 26 additions and 22 deletions
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48
package.nix
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@ -441,32 +441,36 @@ stdenv.mkDerivation (finalAttrs: {
shellHook = ''
# don't re-run the hook in (other) nested nix-shells
if [[ $name != lix-shell-env ]]; then
return;
fi
function lixShellHook() {
if [[ $name != lix-shell-env ]]; then
return;
fi
PATH=$prefix/bin:$PATH
unset PYTHONPATH
export MANPATH=$out/share/man:$MANPATH
PATH=$prefix/bin:$PATH
unset PYTHONPATH
export MANPATH=$out/share/man:$MANPATH
# Make bash completion work.
XDG_DATA_DIRS+=:$out/share
# Make bash completion work.
XDG_DATA_DIRS+=:$out/share
${lib.optionalString (pre-commit-checks ? shellHook) pre-commit-checks.shellHook}
# Allow `touch .nocontribmsg` to turn this notice off.
if ! [[ -f .nocontribmsg ]]; then
cat ${contribNotice}
fi
${lib.optionalString (pre-commit-checks ? shellHook) pre-commit-checks.shellHook}
# Allow `touch .nocontribmsg` to turn this notice off.
if ! [[ -f .nocontribmsg ]]; then
cat ${contribNotice}
fi
# Install the Gerrit commit-msg hook.
# (git common dir is the main .git, including for worktrees)
if gitcommondir=$(git rev-parse --git-common-dir 2>/dev/null) && [[ ! -f "$gitcommondir/hooks/commit-msg" ]]; then
echo 'Installing Gerrit commit-msg hook (adds Change-Id to commit messages)' >&2
mkdir -p "$gitcommondir/hooks"
curl -s -Lo "$gitcommondir/hooks/commit-msg" https://gerrit.lix.systems/tools/hooks/commit-msg
chmod u+x "$gitcommondir/hooks/commit-msg"
fi
unset gitcommondir
# Install the Gerrit commit-msg hook.
# (git common dir is the main .git, including for worktrees)
if gitcommondir=$(git rev-parse --git-common-dir 2>/dev/null) && [[ ! -f "$gitcommondir/hooks/commit-msg" ]]; then
echo 'Installing Gerrit commit-msg hook (adds Change-Id to commit messages)' >&2
mkdir -p "$gitcommondir/hooks"
curl -s -Lo "$gitcommondir/hooks/commit-msg" https://gerrit.lix.systems/tools/hooks/commit-msg
chmod u+x "$gitcommondir/hooks/commit-msg"
fi
unset gitcommondir
}
lixShellHook
'';
}
);