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