From 6fcb071f6a815a41557ed04cf2146c7705bf15f7 Mon Sep 17 00:00:00 2001
From: Stephen Haberman <shaberman@payflex.com>
Date: Sun, 22 Jun 2008 15:23:42 -0500
Subject: [PATCH] Copy in update-no-rewind, make executable.

---
 cbas/post-receive       |   0
 cbas/pre-receive        |   0
 cbas/update             |   4 ++
 server/update-no-rewind | 107 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 111 insertions(+)
 mode change 100644 => 100755 cbas/post-receive
 mode change 100644 => 100755 cbas/pre-receive
 create mode 100755 cbas/update
 create mode 100644 server/update-no-rewind

diff --git a/cbas/post-receive b/cbas/post-receive
old mode 100644
new mode 100755
diff --git a/cbas/pre-receive b/cbas/pre-receive
old mode 100644
new mode 100755
diff --git a/cbas/update b/cbas/update
new file mode 100755
index 0000000..9e1bf09
--- /dev/null
+++ b/cbas/update
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+. /srv/git/hooks/server/update-no-rewind
+
diff --git a/server/update-no-rewind b/server/update-no-rewind
new file mode 100644
index 0000000..4b69268
--- /dev/null
+++ b/server/update-no-rewind
@@ -0,0 +1,107 @@
+#!/bin/sh
+#
+# An example hook script to blocks unannotated tags from entering.
+# Called by git-receive-pack with arguments: refname sha1-old sha1-new
+#
+# To enable this hook, make this file executable by "chmod +x update".
+#
+# Config
+# ------
+# hooks.allowunannotated
+#   This boolean sets whether unannotated tags will be allowed into the
+#   repository.  By default they won't be.
+# hooks.allowdeletetag
+#   This boolean sets whether deleting tags will be allowed in the
+#   repository.  By default they won't be.
+# hooks.allowdeletebranch
+#   This boolean sets whether deleting branches will be allowed in the
+#   repository.  By default they won't be.
+#
+
+# --- Command line
+refname="$1"
+oldrev="$2"
+newrev="$3"
+
+# --- Safety check
+if [ -z "$GIT_DIR" ]; then
+	echo "Don't run this script from the command line." >&2
+	echo " (if you want, you could supply GIT_DIR then run" >&2
+	echo "  $0 <ref> <oldrev> <newrev>)" >&2
+	exit 1
+fi
+
+if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
+	echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
+	exit 1
+fi
+
+# --- Config
+allowunannotated=$(git config --bool hooks.allowunannotated)
+allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
+allowdeletetag=$(git config --bool hooks.allowdeletetag)
+
+# check for no description
+projectdesc=$(sed -e '1q' "$GIT_DIR/description")
+if [ -z "$projectdesc" -o "$projectdesc" = "Unnamed repository; edit this file to name it for gitweb." ]; then
+	echo "*** Project description file hasn't been set" >&2
+	exit 1
+fi
+
+# --- Check types
+# if $newrev is 0000...0000, it's a commit to delete a ref.
+if [ "$newrev" = "0000000000000000000000000000000000000000" ]; then
+	newrev_type=delete
+else
+	newrev_type=$(git-cat-file -t $newrev)
+fi
+
+case "$refname","$newrev_type" in
+	refs/tags/*,commit)
+		# un-annotated tag
+		short_refname=${refname##refs/tags/}
+		if [ "$allowunannotated" != "true" ]; then
+			echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
+			echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
+			exit 1
+		fi
+		;;
+	refs/tags/*,delete)
+		# delete tag
+		if [ "$allowdeletetag" != "true" ]; then
+			echo "*** Deleting a tag is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/tags/*,tag)
+		# annotated tag
+		;;
+	refs/heads/*,commit)
+		# branch
+		;;
+	refs/heads/*,delete)
+		# delete branch
+		if [ "$allowdeletebranch" != "true" ]; then
+			echo "*** Deleting a branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	refs/remotes/*,commit)
+		# tracking branch
+		;;
+	refs/remotes/*,delete)
+		# delete tracking branch
+		if [ "$allowdeletebranch" != "true" ]; then
+			echo "*** Deleting a tracking branch is not allowed in this repository" >&2
+			exit 1
+		fi
+		;;
+	*)
+		# Anything else (is there anything else?)
+		echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
+		exit 1
+		;;
+esac
+
+# --- Finished
+exit 0
-- 
2.39.5