Add install script for git hooks

2 files changed, 27 insertions, 0 deletions

diff --git a/scripts/hooks-wrapper.sh b/scripts/hooks-wrapper.sh
new file mode 100755
index 000000000..e89a3567d
--- /dev/null
+++ b/scripts/hooks-wrapper.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/bash
+if [ -x $0.local ]; then
+    $0.local "$@" || exit $?
+fi
+
+basename=$(basename "$0")
+hooks_dir="$GIT_DIR/../git-hooks"
+hook="$hooks_dir/$basename"
+
+if [ -x "$hook" ]; then
+    "$hook" "$@" || exit $?
+fi
diff --git a/scripts/install-git-hooks.sh b/scripts/install-git-hooks.sh
new file mode 100755
index 000000000..63faa345b
--- /dev/null
+++ b/scripts/install-git-hooks.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/bash
+SCRIPTS_DIR=$(realpath $(dirname "$0"))
+HOOK_DIR=$(realpath "$SCRIPTS_DIR/../.git/hooks")
+HOOK_NAMES="applypatch-msg pre-applypatch post-applypatch pre-commit prepare-commit-msg commit-msg post-commit pre-rebase post-checkout post-merge pre-receive update post-receive post-update pre-auto-gc"
+
+for hook in $HOOK_NAMES; do
+    # If the hook already exists, is executable, and is not a symlink
+    if [ ! -h $HOOK_DIR/$hook -a -x $HOOK_DIR/$hook ]; then
+        mv $HOOK_DIR/$hook $HOOK_DIR/$hook.local
+    fi
+    # create the symlink, overwriting the file if it exists
+    # probably the only way this would happen is if you're using an old version of git
+    # -- back when the sample hooks were not executable, instead of being named ____.sample
+    ln -s -f $SCRIPTS_DIR/hooks-wrapper.sh $HOOK_DIR/$hook
+done