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-rwxr-xr-xcontrib/workdir/git-new-workdir82
1 files changed, 82 insertions, 0 deletions
diff --git a/contrib/workdir/git-new-workdir b/contrib/workdir/git-new-workdir
new file mode 100755
index 0000000000..75e8b25817
--- /dev/null
+++ b/contrib/workdir/git-new-workdir
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+usage () {
+ echo "usage:" $@
+ exit 127
+}
+
+die () {
+ echo $@
+ exit 128
+}
+
+if test $# -lt 2 || test $# -gt 3
+then
+ usage "$0 <repository> <new_workdir> [<branch>]"
+fi
+
+orig_git=$1
+new_workdir=$2
+branch=$3
+
+# want to make sure that what is pointed to has a .git directory ...
+git_dir=$(cd "$orig_git" 2>/dev/null &&
+ git rev-parse --git-dir 2>/dev/null) ||
+ die "Not a git repository: \"$orig_git\""
+
+case "$git_dir" in
+.git)
+ git_dir="$orig_git/.git"
+ ;;
+.)
+ git_dir=$orig_git
+ ;;
+esac
+
+# don't link to a configured bare repository
+isbare=$(git --git-dir="$git_dir" config --bool --get core.bare)
+if test ztrue = z$isbare
+then
+ die "\"$git_dir\" has core.bare set to true," \
+ " remove from \"$git_dir/config\" to use $0"
+fi
+
+# don't link to a workdir
+if test -h "$git_dir/config"
+then
+ die "\"$orig_git\" is a working directory only, please specify" \
+ "a complete repository."
+fi
+
+# don't recreate a workdir over an existing repository
+if test -e "$new_workdir"
+then
+ die "destination directory '$new_workdir' already exists."
+fi
+
+# make sure the links use full paths
+git_dir=$(cd "$git_dir"; pwd)
+
+# create the workdir
+mkdir -p "$new_workdir/.git" || die "unable to create \"$new_workdir\"!"
+
+# create the links to the original repo. explicitly exclude index, HEAD and
+# logs/HEAD from the list since they are purely related to the current working
+# directory, and should not be shared.
+for x in config refs logs/refs objects info hooks packed-refs remotes rr-cache svn
+do
+ case $x in
+ */*)
+ mkdir -p "$(dirname "$new_workdir/.git/$x")"
+ ;;
+ esac
+ ln -s "$git_dir/$x" "$new_workdir/.git/$x"
+done
+
+# now setup the workdir
+cd "$new_workdir"
+# copy the HEAD from the original repository as a default branch
+cp "$git_dir/HEAD" .git/HEAD
+# checkout the branch (either the same as HEAD from the original repository, or
+# the one that was asked for)
+git checkout -f $branch