Merge branch 'jk/clone-post-checkout'
[git] / templates / hooks--update.sample
1 #!/bin/sh
2 #
3 # An example hook script to blocks unannotated tags from entering.
4 # Called by git-receive-pack with arguments: refname sha1-old sha1-new
5 #
6 # To enable this hook, rename this file to "update".
7 #
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.
13 # hooks.allowdeletetag
14 #   This boolean sets whether deleting tags will be allowed in the
15 #   repository.  By default they won't be.
16 # hooks.allowdeletebranch
17 #   This boolean sets whether deleting branches will be allowed in the
18 #   repository.  By default they won't be.
19 #
20
21 # --- Command line
22 refname="$1"
23 oldrev="$2"
24 newrev="$3"
25
26 # --- Safety check
27 if [ -z "$GIT_DIR" ]; then
28         echo "Don't run this script from the command line." >&2
29         echo " (if you want, you could supply GIT_DIR then run" >&2
30         echo "  $0 <ref> <oldrev> <newrev>)" >&2
31         exit 1
32 fi
33
34 if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
35         echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
36         exit 1
37 fi
38
39 # --- Config
40 allowunannotated=$(git config --bool hooks.allowunannotated)
41 allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
42 allowdeletetag=$(git config --bool hooks.allowdeletetag)
43
44 # check for no description
45 projectdesc=$(sed -e '1q' "$GIT_DIR/description")
46 case "$projectdesc" in
47 "Unnamed repository"* | "")
48         echo "*** Project description file hasn't been set" >&2
49         exit 1
50         ;;
51 esac
52
53 # --- Check types
54 # if $newrev is 0000...0000, it's a commit to delete a ref.
55 if [ "$newrev" = "0000000000000000000000000000000000000000" ]; then
56         newrev_type=delete
57 else
58         newrev_type=$(git-cat-file -t $newrev)
59 fi
60
61 case "$refname","$newrev_type" in
62         refs/tags/*,commit)
63                 # un-annotated tag
64                 short_refname=${refname##refs/tags/}
65                 if [ "$allowunannotated" != "true" ]; then
66                         echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
67                         echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
68                         exit 1
69                 fi
70                 ;;
71         refs/tags/*,delete)
72                 # delete tag
73                 if [ "$allowdeletetag" != "true" ]; then
74                         echo "*** Deleting a tag is not allowed in this repository" >&2
75                         exit 1
76                 fi
77                 ;;
78         refs/tags/*,tag)
79                 # annotated tag
80                 ;;
81         refs/heads/*,commit)
82                 # branch
83                 ;;
84         refs/heads/*,delete)
85                 # delete branch
86                 if [ "$allowdeletebranch" != "true" ]; then
87                         echo "*** Deleting a branch is not allowed in this repository" >&2
88                         exit 1
89                 fi
90                 ;;
91         refs/remotes/*,commit)
92                 # tracking branch
93                 ;;
94         refs/remotes/*,delete)
95                 # delete tracking branch
96                 if [ "$allowdeletebranch" != "true" ]; then
97                         echo "*** Deleting a tracking branch is not allowed in this repository" >&2
98                         exit 1
99                 fi
100                 ;;
101         *)
102                 # Anything else (is there anything else?)
103                 echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
104                 exit 1
105                 ;;
106 esac
107
108 # --- Finished
109 exit 0