Merge branch 'maint-1.6.2' into maint-1.6.3
[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 # hooks.denycreatebranch
20 #   This boolean sets whether remotely creating branches will be denied
21 #   in the repository.  By default this is allowed.
22 #
23
24 # --- Command line
25 refname="$1"
26 oldrev="$2"
27 newrev="$3"
28
29 # --- Safety check
30 if [ -z "$GIT_DIR" ]; then
31         echo "Don't run this script from the command line." >&2
32         echo " (if you want, you could supply GIT_DIR then run" >&2
33         echo "  $0 <ref> <oldrev> <newrev>)" >&2
34         exit 1
35 fi
36
37 if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
38         echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
39         exit 1
40 fi
41
42 # --- Config
43 allowunannotated=$(git config --bool hooks.allowunannotated)
44 allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
45 denycreatebranch=$(git config --bool hooks.denycreatebranch)
46 allowdeletetag=$(git config --bool hooks.allowdeletetag)
47
48 # check for no description
49 projectdesc=$(sed -e '1q' "$GIT_DIR/description")
50 case "$projectdesc" in
51 "Unnamed repository"* | "")
52         echo "*** Project description file hasn't been set" >&2
53         exit 1
54         ;;
55 esac
56
57 # --- Check types
58 # if $newrev is 0000...0000, it's a commit to delete a ref.
59 zero="0000000000000000000000000000000000000000"
60 if [ "$newrev" = "$zero" ]; then
61         newrev_type=delete
62 else
63         newrev_type=$(git-cat-file -t $newrev)
64 fi
65
66 case "$refname","$newrev_type" in
67         refs/tags/*,commit)
68                 # un-annotated tag
69                 short_refname=${refname##refs/tags/}
70                 if [ "$allowunannotated" != "true" ]; then
71                         echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
72                         echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
73                         exit 1
74                 fi
75                 ;;
76         refs/tags/*,delete)
77                 # delete tag
78                 if [ "$allowdeletetag" != "true" ]; then
79                         echo "*** Deleting a tag is not allowed in this repository" >&2
80                         exit 1
81                 fi
82                 ;;
83         refs/tags/*,tag)
84                 # annotated tag
85                 ;;
86         refs/heads/*,commit)
87                 # branch
88                 if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
89                         echo "*** Creating a branch is not allowed in this repository" >&2
90                         exit 1
91                 fi
92                 ;;
93         refs/heads/*,delete)
94                 # delete branch
95                 if [ "$allowdeletebranch" != "true" ]; then
96                         echo "*** Deleting a branch is not allowed in this repository" >&2
97                         exit 1
98                 fi
99                 ;;
100         refs/remotes/*,commit)
101                 # tracking branch
102                 ;;
103         refs/remotes/*,delete)
104                 # delete tracking branch
105                 if [ "$allowdeletebranch" != "true" ]; then
106                         echo "*** Deleting a tracking branch is not allowed in this repository" >&2
107                         exit 1
108                 fi
109                 ;;
110         *)
111                 # Anything else (is there anything else?)
112                 echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
113                 exit 1
114                 ;;
115 esac
116
117 # --- Finished
118 exit 0