gitpages

commit 574532787a9a7fba1ce8174d418f997d35cec8f9
parent cfc8cccf25f73f933a86f23b30ba928accd506ef
Author: Fred Großkopf <fred@kuandu.systems>
Date:   Wed, 15 Apr 2026 13:05:34 +0200

Adds symlink-git-hook.sh

A helper script to symlink a git hook file
to a directory of git repositories.

Diffstat:
A
symlink-git-hook.sh
 | 
74
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 74 insertions(+), 0 deletions(-)
diff --git a/symlink-git-hook.sh b/symlink-git-hook.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+
+set -eu
+
+usage() {
+  cat << EOF >&2
+Usage: $0 HOOK_FILE GIT_DIR
+EOF
+  exit 1
+}
+
+error() {
+  printf 'error: %s\n' "$1" >&2
+  exit 1
+}
+
+info() {
+  printf 'info: %s\n' "$1"
+}
+
+check_args() {
+  [ $# -eq 2 ] || usage
+  HOOK_FILE="$1"
+  GIT_DIR="$2"
+}
+
+check_hook_file() {
+  [ -f "$HOOK_FILE" ] || error "hook missing: $HOOK_FILE"
+  [ -x "$HOOK_FILE" ] || error "hook not executable: $HOOK_FILE"
+}
+
+check_git_dir() {
+  [ -d "$GIT_DIR" ] || error "Git directory not found: $GIT_DIR"
+  [ -n "$(ls "$GIT_DIR"/*.git 2> /dev/null)" ] || error "no *.git repos in $GIT_DIR"
+}
+
+install_hook() {
+  repo="$1"
+  hook_name="$2"
+  hook_file="$3"
+  target="$repo/hooks/$hook_name"
+
+  if [ -L "$target" ] && [ "$(readlink "$target")" = "$hook_file" ]; then
+    info "$(basename "$repo")/$hook_name: up-to-date"
+    return 1
+  fi
+
+  rm -f "$target"
+  ln -sf "$hook_file" "$target"
+  info "$(basename "$repo")/$hook_name: deployed"
+  return 0
+}
+
+main() {
+  check_args "$@"
+  check_hook_file
+  check_git_dir
+
+  hook_name="$(basename "$HOOK_FILE")"
+  changed=0
+
+  for repo in "$GIT_DIR"/*.git; do
+    [ -d "$repo" ] || continue
+    install_hook "$repo" "$hook_name" "$HOOK_FILE" && changed=$((changed + 1))
+  done
+
+  if [ "$changed" -eq 0 ]; then
+    info "All repositories up-to-date"
+  else
+    info "Deployed/updated $changed repositories"
+  fi
+}
+
+main "$@"