files_transaction_cleanup(): new helper function
[git.git] / templates / hooks--update.sample
blob80ba94135cc378364af9d3cb2450df48e51faf2c
1 #!/bin/sh
3 # An example hook script to block unannotated tags from entering.
4 # Called by "git receive-pack" with arguments: refname sha1-old sha1-new
6 # To enable this hook, rename this file to "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.
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.allowmodifytag
17 # This boolean sets whether a tag may be modified after creation. By default
18 # it won't be.
19 # hooks.allowdeletebranch
20 # This boolean sets whether deleting branches will be allowed in the
21 # repository. By default they won't be.
22 # hooks.denycreatebranch
23 # This boolean sets whether remotely creating branches will be denied
24 # in the repository. By default this is allowed.
27 # --- Command line
28 refname="$1"
29 oldrev="$2"
30 newrev="$3"
32 # --- Safety check
33 if [ -z "$GIT_DIR" ]; then
34 echo "Don't run this script from the command line." >&2
35 echo " (if you want, you could supply GIT_DIR then run" >&2
36 echo " $0 <ref> <oldrev> <newrev>)" >&2
37 exit 1
40 if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
41 echo "usage: $0 <ref> <oldrev> <newrev>" >&2
42 exit 1
45 # --- Config
46 allowunannotated=$(git config --bool hooks.allowunannotated)
47 allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
48 denycreatebranch=$(git config --bool hooks.denycreatebranch)
49 allowdeletetag=$(git config --bool hooks.allowdeletetag)
50 allowmodifytag=$(git config --bool hooks.allowmodifytag)
52 # check for no description
53 projectdesc=$(sed -e '1q' "$GIT_DIR/description")
54 case "$projectdesc" in
55 "Unnamed repository"* | "")
56 echo "*** Project description file hasn't been set" >&2
57 exit 1
59 esac
61 # --- Check types
62 # if $newrev is 0000...0000, it's a commit to delete a ref.
63 zero="0000000000000000000000000000000000000000"
64 if [ "$newrev" = "$zero" ]; then
65 newrev_type=delete
66 else
67 newrev_type=$(git cat-file -t $newrev)
70 case "$refname","$newrev_type" in
71 refs/tags/*,commit)
72 # un-annotated tag
73 short_refname=${refname##refs/tags/}
74 if [ "$allowunannotated" != "true" ]; then
75 echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
76 echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
77 exit 1
80 refs/tags/*,delete)
81 # delete tag
82 if [ "$allowdeletetag" != "true" ]; then
83 echo "*** Deleting a tag is not allowed in this repository" >&2
84 exit 1
87 refs/tags/*,tag)
88 # annotated tag
89 if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1
90 then
91 echo "*** Tag '$refname' already exists." >&2
92 echo "*** Modifying a tag is not allowed in this repository." >&2
93 exit 1
96 refs/heads/*,commit)
97 # branch
98 if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
99 echo "*** Creating a branch is not allowed in this repository" >&2
100 exit 1
103 refs/heads/*,delete)
104 # delete branch
105 if [ "$allowdeletebranch" != "true" ]; then
106 echo "*** Deleting a branch is not allowed in this repository" >&2
107 exit 1
110 refs/remotes/*,commit)
111 # tracking branch
113 refs/remotes/*,delete)
114 # delete tracking branch
115 if [ "$allowdeletebranch" != "true" ]; then
116 echo "*** Deleting a tracking branch is not allowed in this repository" >&2
117 exit 1
121 # Anything else (is there anything else?)
122 echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
123 exit 1
125 esac
127 # --- Finished
128 exit 0