templates / hooks--update.sampleon commit Merge 'build-in git-mktree' (77f143b)
   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
  25refname="$1"
  26oldrev="$2"
  27newrev="$3"
  28
  29# --- Safety check
  30if [ -z "$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 "  $0 <ref> <oldrev> <newrev>)" >&2
  34        exit 1
  35fi
  36
  37if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
  38        echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
  39        exit 1
  40fi
  41
  42# --- Config
  43allowunannotated=$(git config --bool hooks.allowunannotated)
  44allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
  45denycreatebranch=$(git config --bool hooks.denycreatebranch)
  46allowdeletetag=$(git config --bool hooks.allowdeletetag)
  47
  48# check for no description
  49projectdesc=$(sed -e '1q' "$GIT_DIR/description")
  50case "$projectdesc" in
  51"Unnamed repository"* | "")
  52        echo "*** Project description file hasn't been set" >&2
  53        exit 1
  54        ;;
  55esac
  56
  57# --- Check types
  58# if $newrev is 0000...0000, it's a commit to delete a ref.
  59zero="0000000000000000000000000000000000000000"
  60if [ "$newrev" = "$zero" ]; then
  61        newrev_type=delete
  62else
  63        newrev_type=$(git-cat-file -t $newrev)
  64fi
  65
  66case "$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                ;;
 115esac
 116
 117# --- Finished
 118exit 0