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[PATCH 1/1] hook/update: example of how to prevent branch creation

From
Pierre Habouzit <madcoder@debian.org>
Date
Apr 16, 2009, 20:00 UTC
Message-ID
<1239912044-29923-1-git-send-email-madcoder@debian.org>

Since git doesn't provide a receive.denyBranchCreation or similar, here is an example of how to be sure users cannot create branches remotely by pushing a new reference.

This setup has been proven useful to prevent creation of spurious branches because of users having their remote.origin.push set to HEAD, when they use `git push` while being on a local topic branch of theirs instead of the proper one.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---
 templates/hooks--update.sample |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/templates/hooks--update.sample b/templates/hooks--update.sample
index a3f68ae..62b9cfe 100755
--- a/templates/hooks--update.sample
+++ b/templates/hooks--update.sample
@@ -16,6 +16,9 @@
 # hooks.allowdeletebranch
 #   This boolean sets whether deleting branches will be allowed in the
 #   repository.  By default they won't be.
+# hooks.denycreatebranch
+#   This boolean sets wether remotely creating branches will be denied
+#   in the repository.  By default this is allowed.
 #
 
 # --- Command line
@@ -39,6 +42,7 @@ fi
 # --- Config
 allowunannotated=$(git config --bool hooks.allowunannotated)
 allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
+denycreatebranch=$(git config --bool hooks.denycreatebranch)
 allowdeletetag=$(git config --bool hooks.allowdeletetag)
 
 # check for no description
@@ -52,7 +56,8 @@ esac
 
 # --- Check types
 # if $newrev is 0000...0000, it's a commit to delete a ref.
-if [ "$newrev" = "0000000000000000000000000000000000000000" ]; then
+zero="0000000000000000000000000000000000000000"
+if [ "$newrev" = "$zero" ]; then
 	newrev_type=delete
 else
 	newrev_type=$(git-cat-file -t $newrev)
@@ -80,6 +85,10 @@ case "$refname","$newrev_type" in
 		;;
 	refs/heads/*,commit)
 		# branch
+		if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
+			echo "*** Creating a branch is not allowed in this repository" >&2
+			exit 1
+		fi
 		;;
 	refs/heads/*,delete)
 		# delete branch
-- 
1.6.3.rc0.201.gadb14
Next: Eric Raible
Message 1 of 2 in “hook/update: example of how to prevent branch creation”
  1. 1/1 hook/update: example of how to prevent branch creationPierre Habouzit, Apr 16, 2009
  2. Eric RaibleApr 17, 2009

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