Andrew's git - gitweb.git/blob - contrib/workdir/git-new-workdir

   1#!/bin/sh
   2
   3usage () {
   4        echo "usage:" $@
   5        exit 127
   6}
   7
   8die () {
   9        echo $@
  10        exit 128
  11}
  12
  13if test $# -lt 2 || test $# -gt 3
  14then
  15        usage "$0 <repository> <new_workdir> [<branch>]"
  16fi
  17
  18orig_git=$1
  19new_workdir=$2
  20branch=$3
  21
  22# want to make sure that what is pointed to has a .git directory ...
  23git_dir=$(cd "$orig_git" 2>/dev/null &&
  24  git rev-parse --git-dir 2>/dev/null) ||
  25  die "\"$orig_git\" is not a git repository!"
  26
  27case "$git_dir" in
  28.git)
  29        git_dir="$orig_git/.git"
  30        ;;
  31.)
  32        git_dir=$orig_git
  33        ;;
  34esac
  35
  36# don't link to a configured bare repository
  37isbare=$(git --git-dir="$git_dir" config --bool --get core.bare)
  38if test ztrue = z$isbare
  39then
  40        die "\"$git_dir\" has core.bare set to true," \
  41                " remove from \"$git_dir/config\" to use $0"
  42fi
  43
  44# don't link to a workdir
  45if test -L "$git_dir/config"
  46then
  47        die "\"$orig_git\" is a working directory only, please specify" \
  48                "a complete repository."
  49fi
  50
  51# don't recreate a workdir over an existing repository
  52if test -e "$new_workdir"
  53then
  54        die "destination directory '$new_workdir' already exists."
  55fi
  56
  57# make sure the the links use full paths
  58git_dir=$(cd "$git_dir"; pwd)
  59
  60# create the workdir
  61mkdir -p "$new_workdir/.git" || die "unable to create \"$new_workdir\"!"
  62
  63# create the links to the original repo.  explictly exclude index, HEAD and
  64# logs/HEAD from the list since they are purely related to the current working
  65# directory, and should not be shared.
  66for x in config refs logs/refs objects info hooks packed-refs remotes rr-cache
  67do
  68        case $x in
  69        */*)
  70                mkdir -p "$(dirname "$new_workdir/.git/$x")"
  71                ;;
  72        esac
  73        ln -s "$git_dir/$x" "$new_workdir/.git/$x"
  74done
  75
  76# now setup the workdir
  77cd "$new_workdir"
  78# copy the HEAD from the original repository as a default branch
  79cp "$git_dir/HEAD" .git/HEAD
  80# checkout the branch (either the same as HEAD from the original repository, or
  81# the one that was asked for)
  82git checkout -f $branch