Add git commit hooks that do some simple checks on commits.

[gnu-emacs] / autogen.sh

diff --git a/autogen.sh b/autogen.sh
index bc8a73db6bdafb3cea2e1e2b0aa81d2a0f127152..69812cdcfe09cf5030bb137c58b85f165c9a85b1 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -208,6 +208,46 @@ autoreconf -i -I m4 || exit $?
 ## cause 'make' to needlessly run 'autoheader'.
 echo timestamp > src/stamp-h.in || exit
 
+## Install Git hooks, if using Git.
+if test -d .git/hooks; then
+    tailored_hooks=
+    sample_hooks=
+
+    for hook in commit-msg pre-commit; do
+       cmp build-aux/git-hooks/$hook .git/hooks/$hook >/dev/null 2>&1 ||
+       tailored_hooks="$tailored_hooks $hook"
+    done
+    for hook in applypatch-msg pre-applypatch; do
+       cmp .git/hooks/$hook.sample .git/hooks/$hook >/dev/null 2>&1 ||
+       sample_hooks="$sample_hooks $hook"
+    done
+
+    if test -n "$tailored_hooks$sample_hooks"; then
+       echo "Installing git hooks..."
+
+       case `cp --help 2>/dev/null` in
+         *--backup*--verbose*)
+           cp_options='--backup=numbered --verbose';;
+         *)
+           cp_options='';;
+       esac
+
+       if test -n "$tailored_hooks"; then
+           for hook in $tailored_hooks; do
+               cp $cp_options build-aux/git-hooks/$hook .git/hooks || exit
+               chmod a-w .git/hooks/$hook || exit
+           done
+       fi
+
+       if test -n "$sample_hooks"; then
+           for hook in $sample_hooks; do
+               cp $cp_options .git/hooks/$hook.sample .git/hooks/$hook || exit
+               chmod a-w .git/hooks/$hook || exit
+           done
+       fi
+    fi
+fi
+
 echo "You can now run \`./configure'."
 
 exit 0