diff options
Diffstat (limited to 'contrib/workdir/git-new-workdir')
| -rwxr-xr-x | contrib/workdir/git-new-workdir | 53 |
1 files changed, 38 insertions, 15 deletions
diff --git a/contrib/workdir/git-new-workdir b/contrib/workdir/git-new-workdir index 75e8b25..888c34a 100755 --- a/contrib/workdir/git-new-workdir +++ b/contrib/workdir/git-new-workdir @@ -10,6 +10,10 @@ die () { exit 128 } +failed () { + die "unable to create new workdir '$new_workdir'!" +} + if test $# -lt 2 || test $# -gt 3 then usage "$0 <repository> <new_workdir> [<branch>]" @@ -35,7 +39,7 @@ esac # don't link to a configured bare repository isbare=$(git --git-dir="$git_dir" config --bool --get core.bare) -if test ztrue = z$isbare +if test ztrue = "z$isbare" then die "\"$git_dir\" has core.bare set to true," \ " remove from \"$git_dir/config\" to use $0" @@ -48,35 +52,54 @@ then "a complete repository." fi -# don't recreate a workdir over an existing repository -if test -e "$new_workdir" +# 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 "$new_workdir" then - die "destination directory '$new_workdir' already exists." + 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="$new_workdir" fi -# make sure the links use full paths -git_dir=$(cd "$git_dir"; pwd) +mkdir -p "$new_workdir/.git" || failed +cleandir=$(cd "$cleandir" && pwd) || failed -# create the workdir -mkdir -p "$new_workdir/.git" || die "unable to create \"$new_workdir\"!" +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 $x in */*) - mkdir -p "$(dirname "$new_workdir/.git/$x")" + mkdir -p "$new_workdir/.git/${x%/*}" ;; esac - ln -s "$git_dir/$x" "$new_workdir/.git/$x" + + ln -s "$git_dir/$x" "$new_workdir/.git/$x" || failed done -# now setup the workdir -cd "$new_workdir" +# commands below this are run in the context of the new workdir +cd "$new_workdir" || failed + # copy the HEAD from the original repository as a default branch -cp "$git_dir/HEAD" .git/HEAD -# checkout the branch (either the same as HEAD from the original repository, or -# the one that was asked for) +cp "$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 |