gitweb: Provide links to commitdiff to each parent in 'commitdiff' view
[git/dscho.git] / contrib / workdir / git-new-workdir
blobf2a3615bbc44ed4edbee4014683621a91c1a7ab9
1 #!/bin/sh
3 usage () {
4 echo "usage:" $@
5 exit 127
8 die () {
9 echo $@
10 exit 128
13 if test $# -lt 2 || test $# -gt 3
14 then
15 usage "$0 <repository> <new_workdir> [<branch>]"
18 orig_git=$1
19 new_workdir=$2
20 branch=$3
22 # want to make sure that what is pointed to has a .git directory ...
23 git_dir=$(cd "$orig_git" 2>/dev/null &&
24 git rev-parse --git-dir 2>/dev/null) ||
25 die "\"$orig_git\" is not a git repository!"
27 # don't link to a workdir
28 if test -L "$git_dir/config"
29 then
30 die "\"$orig_git\" is a working directory only, please specify" \
31 "a complete repository."
34 # make sure the the links use full paths
35 git_dir=$(cd "$git_dir"; pwd)
37 # create the workdir
38 mkdir -p "$new_workdir/.git" || die "unable to create \"$new_workdir\"!"
40 # create the links to the original repo. explictly exclude index, HEAD and
41 # logs/HEAD from the list since they are purely related to the current working
42 # directory, and should not be shared.
43 for x in config refs logs/refs objects info hooks packed-refs remotes rr-cache
45 case $x in
46 */*)
47 mkdir -p "$(dirname "$new_workdir/.git/$x")"
49 esac
50 ln -s "$git_dir/$x" "$new_workdir/.git/$x"
51 done
53 # now setup the workdir
54 cd "$new_workdir"
55 # copy the HEAD from the original repository as a default branch
56 cp "$git_dir/HEAD" .git/HEAD
57 # checkout the branch (either the same as HEAD from the original repository, or
58 # the one that was asked for)
59 git checkout -f $branch