git-svn: reduce stat() calls for a backwards compatibility check
[git/dscho.git] / templates / hooks--update
blob9d3795c6d055d3ca2b50ac0607607037cb2b8142
1 #!/bin/sh
3 # An example hook script to blocks unannotated tags from entering.
4 # Called by git-receive-pack with arguments: refname sha1-old sha1-new
6 # To enable this hook, make this file executable by "chmod +x update".
8 # Config
9 # ------
10 # hooks.allowunannotated
11 # This boolean sets whether unannotated tags will be allowed into the
12 # repository. By default they won't be.
15 # --- Command line
16 refname="$1"
17 oldrev="$2"
18 newrev="$3"
20 # --- Safety check
21 if [ -z "$GIT_DIR" ]; then
22 echo "Don't run this script from the command line." >&2
23 echo " (if you want, you could supply GIT_DIR then run" >&2
24 echo " $0 <ref> <oldrev> <newrev>)" >&2
25 exit 1
28 if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
29 echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
30 exit 1
33 # --- Config
34 allowunannotated=$(git-repo-config --bool hooks.allowunannotated)
36 # check for no description
37 projectdesc=$(sed -e '1p' "$GIT_DIR/description")
38 if [ -z "$projectdesc" -o "$projectdesc" = "Unnamed repository; edit this file to name it for gitweb" ]; then
39 echo "*** Project description file hasn't been set" >&2
40 exit 1
43 # --- Check types
44 # if $newrev is 0000...0000, it's a commit to delete a branch
45 if [ -z "${newrev##0*}" ]; then
46 newrev_type=commit
47 else
48 newrev_type=$(git-cat-file -t $newrev)
51 case "$refname","$newrev_type" in
52 refs/tags/*,commit)
53 # un-annotated tag
54 short_refname=${refname##refs/tags/}
55 if [ "$allowunannotated" != "true" ]; then
56 echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
57 echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
58 exit 1
61 refs/tags/*,tag)
62 # annotated tag
64 refs/heads/*,commit)
65 # branch
67 refs/remotes/*,commit)
68 # tracking branch
71 # Anything else (is there anything else?)
72 echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
73 exit 1
75 esac
77 # --- Finished
78 exit 0