Discard stderr when using rev ranges
[dragonfly.git] / update
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 allownonfastfwd=$(git config --bool hooks.allownonfastfwd)
44
45 # check for no description
46 projectdesc=$(sed -e '1q' "$GIT_DIR/description")
47 if [ -z "$projectdesc" -o "$projectdesc" = "Unnamed repository; edit this file to name it for gitweb." ]; then
48         echo "*** Project description file hasn't been set" >&2
49         exit 1
50 fi
51
52 # --- Check types
53 # if $newrev is 0000...0000, it's a commit to delete a ref.
54 if [ "$newrev" = "0000000000000000000000000000000000000000" ]; then
55         newrev_type=delete
56 else
57         newrev_type=$(git cat-file -t $newrev)
58 fi
59
60 case "$refname","$newrev_type" in
61         refs/tags/*,commit)
62                 # un-annotated tag
63                 short_refname=${refname##refs/tags/}
64                 if [ "$allowunannotated" != "true" ]; then
65                         echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
66                         echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
67                         exit 1
68                 fi
69                 ;;
70         refs/tags/*,delete)
71                 # delete tag
72                 if [ "$allowdeletetag" != "true" ]; then
73                         echo "*** Deleting a tag is not allowed in this repository" >&2
74                         exit 1
75                 fi
76                 ;;
77         refs/tags/*,tag)
78                 # annotated tag
79                 ;;
80         refs/heads/*,commit)
81                 # branch
82                 if [ -n "$(git rev-list $newrev..$oldrev 2>/dev/null)" -a "$allownonfastfwd" != "true" ]; then
83                         echo "*** Non fast forward pushes are not allowed in this repository" >&2
84                         exit 1
85                 fi
86                 ;;
87         refs/heads/*,delete)
88                 # delete branch
89                 if [ "$allowdeletebranch" != "true" ]; then
90                         echo "*** Deleting a branch is not allowed in this repository" >&2
91                         exit 1
92                 fi
93                 ;;
94         refs/remotes/*,commit)
95                 # tracking branch
96                 ;;
97         refs/remotes/*,delete)
98                 # delete tracking branch
99                 if [ "$allowdeletebranch" != "true" ]; then
100                         echo "*** Deleting a tracking branch is not allowed in this repository" >&2
101                         exit 1
102                 fi
103                 ;;
104         *)
105                 # Anything else (is there anything else?)
106                 echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
107                 exit 1
108                 ;;
109 esac
110
111 # --- Finished
112 exit 0