diff options
| -rwxr-xr-x | assimilator/bin/git-clone-into | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/assimilator/bin/git-clone-into b/assimilator/bin/git-clone-into new file mode 100755 index 00000000..67e820e6 --- /dev/null +++ b/assimilator/bin/git-clone-into @@ -0,0 +1,48 @@ +#! /bin/sh +# +# usage: git-clone-into repository directory +# +set -euf + +tempdir() { + set -- `tempnam $1` + mkdir $1 + echo $1 +} + +## [prefix] -> tempnam +tempnam() { + until set -- $1 ${1-}`candnam` && ! test -e $2; do :; done + echo $2 +} + +candnam() { + uuidgen 2>/dev/null || date +%s%N +} + + + + tmp_remote=`candnam` + tmp_branch=`candnam` + + subdir=$2 + if test -e $subdir; then + echo 'You are made of stupid!' >&2 + exit 23 + fi + tmpdir=`tempdir /tmp/tempdir-` + #trap "test -d $tmpdir && rm -vfR $tmpdir" EXIT + trap "test -d $tmpdir && rm -fR $tmpdir" EXIT + repository="${1-$repository}" + git clone "$repository" $tmpdir + (cd $tmpdir + subdir="$subdir" git filter-branch --tree-filter ' + if ! test -d $subdir; then + mkdir -p $subdir + git ls-tree -z --name-only $GIT_COMMIT | xargs -I. --null mv . $subdir + fi + ' + git checkout -b $tmp_branch) + git remote add $tmp_remote $tmpdir + git fetch $tmp_remote + git merge $tmp_remote/$tmp_branch # TODO configurable branch |