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#!/bin/sh
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#
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# git_checkout.sh
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#
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# part of pfSense (https://www.pfsense.org)
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# Copyright (c) 2004-2019 Rubicon Communications, LLC (Netgate)
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# All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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export PATH=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin
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scripts_path=$(dirname $(realpath $0))
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if [ ! -f "${scripts_path}/common.subr" ]; then
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echo >&2 "ERROR: common.subr is missing"
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exit 1
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fi
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. ${scripts_path}/common.subr
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usage() {
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cat >&2 <<END
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Usage: $(basename $0) -r repo_url -d destdir [-b branch] [-h]
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Options:
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-r repo_url -- URL of desired git repository
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-d destdir -- Directory to clone
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-b branch -- Branch or tag to clone (default: master)
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-h -- Show this help and exit
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Environment:
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GIT_BIN -- Path to git binary
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END
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exit 1
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}
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branch="master"
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while getopts r:d:b:h opt; do
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case "$opt" in
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r)
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repo_url=$OPTARG
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;;
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d)
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destdir=$OPTARG
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;;
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b)
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branch=$OPTARG
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;;
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*)
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usage
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;;
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esac
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done
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[ -z "$repo_url" ] \
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&& err "repository URL is not defined"
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[ -z "$destdir" ] \
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&& err "destdir is not defined"
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[ -e $destdir -a ! -d $destdir ] \
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&& err "destdir already exists and is not a directory"
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git=${GIT_BIN:-$(which git)}
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if [ ! -x "${git}" ]; then
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err "git binary is missing"
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fi
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if [ -d "${destdir}/.git" ]; then
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current_url=$(${git} -C ${destdir} config --get remote.origin.url)
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[ "${current_url}" != "${repo_url}" ] \
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&& err \
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"destination directory contains a different git repository"
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run "Removing local changes from git repo ${repo_url} (${branch})" \
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"${git} -C ${destdir} reset -q --hard"
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run "Removing leftovers from git repo ${repo_url} (${branch})" \
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"${git} -C ${destdir} clean -qfd"
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run "Retrieving updates from git repo ${repo_url} (${branch})" \
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"${git} -C ${destdir} fetch -q origin"
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run "Updating git repo ${repo_url} (${branch})" \
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"git -C ${destdir} checkout -q ${branch}"
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# Detect if it's a branch and rebase it
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if ${git} -C ${destdir} show-ref -q --verify refs/heads/${branch}; then
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run "Rebasing git repo ${repo_url} (${branch})" \
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"git -C ${destdir} rebase -q origin/${branch}"
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fi
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else
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run "Cloning git repository ${repo_url} (${branch})" \
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"git clone -q -b ${branch} ${repo_url} ${destdir}"
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fi
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exit 0
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