templates / hooks--update.sampleon commit bisect: use the new generic "sha1_pos" function to lookup sha1 (4eb5b64)
   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
  22refname="$1"
  23oldrev="$2"
  24newrev="$3"
  25
  26# --- Safety check
  27if [ -z "$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 "  $0 <ref> <oldrev> <newrev>)" >&2
  31        exit 1
  32fi
  33
  34if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
  35        echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
  36        exit 1
  37fi
  38
  39# --- Config
  40allowunannotated=$(git config --bool hooks.allowunannotated)
  41allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
  42allowdeletetag=$(git config --bool hooks.allowdeletetag)
  43
  44# check for no description
  45projectdesc=$(sed -e '1q' "$GIT_DIR/description")
  46case "$projectdesc" in
  47"Unnamed repository"* | "")
  48        echo "*** Project description file hasn't been set" >&2
  49        exit 1
  50        ;;
  51esac
  52
  53# --- Check types
  54# if $newrev is 0000...0000, it's a commit to delete a ref.
  55if [ "$newrev" = "0000000000000000000000000000000000000000" ]; then
  56        newrev_type=delete
  57else
  58        newrev_type=$(git-cat-file -t $newrev)
  59fi
  60
  61case "$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                ;;
 106esac
 107
 108# --- Finished
 109exit 0