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install_hooks: resolve hooks dir via common git dir

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WzxdWY1k4muZfdVJfb7YGJ
This commit is contained in:
Krzysztof Rudnicki 2026-11-02 09:11:58 +01:00
parent 2a9332094a
commit d14b7e03e3
1 changed files with 9 additions and 5 deletions
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14
scripts/install_hooks.sh
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@ -26,9 +26,10 @@
set -euo pipefail
REPO_ROOT="$(git rev-parse --show-toplevel)"
readonly REPO_ROOT
readonly HOOK="$REPO_ROOT/.git/hooks/pre-commit"
# The common git dir, not <toplevel>/.git: in a worktree .git is a file.
HOOKS_DIR="$(git rev-parse --path-format=absolute --git-common-dir)/hooks"
readonly HOOKS_DIR
readonly HOOK="$HOOKS_DIR/pre-commit"
readonly LEGACY_MARKER='bump_patch_version.sh'
# The old hand-written hook has to go before pre-commit will install over it;
@ -57,7 +58,7 @@ ensure_pre_commit() {
# and only on success. pre-commit install --hook-type pre-commit writes the
# generated script; we move it aside and call it from ours.
install_wrapper() {
local generated="$REPO_ROOT/.git/hooks/pre-commit.pre-commit-generated"
local generated="$HOOKS_DIR/pre-commit.pre-commit-generated"
mv "$HOOK" "$generated"
cat > "$HOOK" <<'HOOK_BODY'
#!/bin/bash
@ -66,10 +67,13 @@ install_wrapper() {
set -euo pipefail
ROOT="$(git rev-parse --show-toplevel)"
readonly ROOT
# The common git dir, not $ROOT/.git: in a worktree .git is a file.
HOOKS_DIR="$(git rev-parse --path-format=absolute --git-common-dir)/hooks"
readonly HOOKS_DIR
# The read-only gates. A non-zero exit here rejects the commit, and the bump
# below never runs, so a rejected attempt leaves no stray version change.
"$(dirname "${BASH_SOURCE[0]}")/pre-commit.pre-commit-generated" "$@"
"$HOOKS_DIR/pre-commit.pre-commit-generated" "$@"
exec bash "$ROOT/scripts/bump_patch_version.sh"
HOOK_BODY