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#!/bin/bash
#
# To use this create a directory that you want to use for git repos, e.g. $HOME/git and copy/symlink this script into it.
# Then you can use it like this:
#
# ./clone github.com/robertgzr/dotfiles
# ./clone https://bitbucket.org/foo/bar
#
# If you don't have gitconfig set up like I have (using aliases for github/bitbucket ssh access) this won't really work
set -e
[ -n "$DEBUG" ] && set -x
SHALLOW=
RECURSE_SUBMODULES=
TEMP="$(mktemp -d -p /tmp clone.XXXXXXXXXX)"
URL=
usage() {
printf "usage: clone [-s][-r] URL\n"
printf "\n"
printf " URL example.com/user/repo\n"
printf " http[s]://example.com/user/repo\n"
printf "\n"
printf " -s shallow clone\n"
printf " -r recurse submodules\n"
printf "\n"
exit 0
}
fail() {
printf "error: %s\n" "${1:-error}"
exit "${2:-1}"
}
confirm() {
printf "%s, ok (y/n)? " "${1:-'do something'}"
read -r yn
if [[ "$yn" = "${yn#[Yy]}" ]]; then
fail "ok, exiting" 0
fi
}
git_clone() {
declare -a GIT_FLAGS
if [[ -n "${SHALLOW}" ]]; then
printf "* shallow clone\n"
GIT_FLAGS+=("--depth=${SHALLOW}")
fi
if [[ -n "${RECURSE_SUBMODULES}" ]]; then
printf "* recurse submodules\n"
GIT_FLAGS+=("--recurse-submodules")
fi
git clone "${GIT_FLAGS[@]}" "${@}"
}
ssh_clone() {
prefix=$1
in=$2
to=$3
IFS='/' read -r -a url <<< "${in}"
ssh_url="${prefix}:${url[1]}/${url[2]}"
printf "* via ssh: %s\n" "${ssh_url}"
git_clone "${ssh_url}" "${to}"
}
http_clone() {
to=$2
http_url="https://${URL}"
printf "* via http: %s\n" "${ssh_url}"
git_clone "${http_url}" "${to}"
}
clone() {
in=$1
to=$2
IFS='/' read -r -a url <<< "${in}"
case "${url[0]}" in
github.com) ssh_clone git@github.com "${in}" "${to}";;
gitlab.com) ssh_clone git@gitlab.com "${in}" "${to}";;
bitbucket.org) ssh_clone git@bitbucket.org "${in}" "${to}";;
git.sr.ht) ssh_clone git@git.sr.ht "${in}" "${to}";;
* ) http_clone "${url/ /\/}" "${to}";;
esac
if [ -e "${to}/.gitmodules" ]; then
git -C "${to}" submodule update --init --recursive
fi
}
main() {
while getopts ":hsr" opt; do
case ${opt} in
s) SHALLOW=1 ;;
r) RECURSE_SUBMODULES=1 ;;
h|\?) usage ;;
esac
done
shift $((OPTIND -1))
URL=$1
if [[ -z "${URL}" ]]; then
fail "no input"
else
URL="${URL//(http|https):\/\//}"
fi
clone "${URL}" "${TEMP}/${URL}" || fail
target="${PWD}/$(dirname "${URL}")"
install -d "${target}" || fail
mv "${TEMP}/${URL}" "${target}" || fail
}
main "${@}"
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