Permalink
Cannot retrieve contributors at this time
Join GitHub today
GitHub is home to over 31 million developers working together to host and review code, manage projects, and build software together.
Sign up
Fetching contributors…
Cannot retrieve contributors at this time
| #!/bin/sh | |
| usage () { | |
| echo "usage:" $@ | |
| exit 127 | |
| } | |
| die () { | |
| echo $@ | |
| exit 128 | |
| } | |
| failed () { | |
| die "unable to create new workdir '$new_workdir'!" | |
| } | |
| 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 "\"$orig_git\" is a working directory only, please specify" \ | |
| "a complete repository." | |
| fi | |
| # make sure the links in the workdir have full paths to the original repo | |
| git_dir=$(cd "$git_dir" && pwd) || exit 1 | |
| # don't recreate a workdir over an existing directory, unless it's empty | |
| if test -d "$new_workdir" | |
| then | |
| if test $(ls -a1 "$new_workdir/." | wc -l) -ne 2 | |
| then | |
| die "destination directory '$new_workdir' is not empty." | |
| fi | |
| cleandir="$new_workdir/.git" | |
| else | |
| cleandir="$new_workdir" | |
| fi | |
| mkdir -p "$new_workdir/.git" || failed | |
| cleandir=$(cd "$cleandir" && pwd) || failed | |
| cleanup () { | |
| rm -rf "$cleandir" | |
| } | |
| siglist="0 1 2 15" | |
| trap cleanup $siglist | |
| # 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 | |
| # create a containing directory if needed | |
| case $x in | |
| */*) | |
| mkdir -p "$new_workdir/.git/${x%/*}" | |
| ;; | |
| esac | |
| ln -s "$git_dir/$x" "$new_workdir/.git/$x" || failed | |
| done | |
| # commands below this are run in the context of the new workdir | |
| cd "$new_workdir" || failed | |
| # copy the HEAD from the original repository as a default branch | |
| cp "$git_dir/HEAD" .git/HEAD || failed | |
| # the workdir is set up. if the checkout fails, the user can fix it. | |
| trap - $siglist | |
| # checkout the branch (either the same as HEAD from the original repository, | |
| # or the one that was asked for) | |
| git checkout -f $branch |