e017a5975c
The default flag used to clone a git repository when using makepkg is "--mirror". However, when working with huge repositories, the use of different flags during cloning can allow an faster checkout. For example, using "--filter=blob:none" allows for small checkouts, at the expense of requiring downloads during the build stage if anything but the HEAD commit is used for the build. In addition, this example would serve as a replacement for the often requested (but broken) addition of --depth=1. Add support for the environment variable GITFLAG to pass flags for the git clone command. Note that this overrides the default rather than adding to it in order to prevent incompatibilities.
139 lines
4 KiB
Bash
139 lines
4 KiB
Bash
#!/bin/bash
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#
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# git.sh - function for handling the download and "extraction" of Git sources
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#
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# Copyright (c) 2015-2022 Pacman Development Team <pacman-dev@lists.archlinux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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[[ -n "$LIBMAKEPKG_SOURCE_GIT_SH" ]] && return
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LIBMAKEPKG_SOURCE_GIT_SH=1
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LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
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source "$LIBRARY/util/message.sh"
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source "$LIBRARY/util/pkgbuild.sh"
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download_git() {
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# abort early if parent says not to fetch
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if declare -p get_vcs > /dev/null 2>&1; then
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(( get_vcs )) || return
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fi
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local netfile=$1
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local dir=$(get_filepath "$netfile")
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[[ -z "$dir" ]] && dir="$SRCDEST/$(get_filename "$netfile")"
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local repo=$(get_filename "$netfile")
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local url=$(get_url "$netfile")
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url=${url#git+}
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url=${url%%#*}
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url=${url%%\?*}
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# Allow overriding of options passed to git clone command, e.g. --filter=blob:none for partial cloning of big repos
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local gitflags=${GITFLAGS:---mirror}
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if [[ ! -d "$dir" ]] || dir_is_empty "$dir" ; then
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msg2 "$(gettext "Cloning %s %s repo...")" "${repo}" "git"
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if ! git clone $GITFLAGS "$url" "$dir"; then
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error "$(gettext "Failure while downloading %s %s repo")" "${repo}" "git"
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plainerr "$(gettext "Aborting...")"
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exit 1
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fi
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elif (( ! HOLDVER )); then
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cd_safe "$dir"
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# Make sure we are fetching the right repo
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if [[ "$url" != "$(git config --get remote.origin.url)" ]] ; then
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error "$(gettext "%s is not a clone of %s")" "$dir" "$url"
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plainerr "$(gettext "Aborting...")"
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exit 1
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fi
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msg2 "$(gettext "Updating %s %s repo...")" "${repo}" "git"
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if ! git fetch --all -p; then
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# only warn on failure to allow offline builds
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warning "$(gettext "Failure while updating %s %s repo")" "${repo}" "git"
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fi
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fi
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}
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extract_git() {
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local netfile=$1 tagname
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local fragment=$(get_uri_fragment "$netfile")
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local repo=$(get_filename "$netfile")
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local dir=$(get_filepath "$netfile")
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[[ -z "$dir" ]] && dir="$SRCDEST/$(get_filename "$netfile")"
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msg2 "$(gettext "Creating working copy of %s %s repo...")" "${repo}" "git"
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pushd "$srcdir" &>/dev/null
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local updating=0
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if [[ -d "${dir##*/}" ]]; then
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updating=1
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cd_safe "${dir##*/}"
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if ! git fetch; then
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error "$(gettext "Failure while updating working copy of %s %s repo")" "${repo}" "git"
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plainerr "$(gettext "Aborting...")"
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exit 1
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fi
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cd_safe "$srcdir"
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elif ! git clone -s "$dir" "${dir##*/}"; then
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error "$(gettext "Failure while creating working copy of %s %s repo")" "${repo}" "git"
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plainerr "$(gettext "Aborting...")"
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exit 1
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fi
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cd_safe "${dir##*/}"
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local ref=origin/HEAD
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if [[ -n $fragment ]]; then
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case ${fragment%%=*} in
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commit|tag)
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ref=${fragment##*=}
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;;
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branch)
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ref=origin/${fragment##*=}
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;;
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*)
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error "$(gettext "Unrecognized reference: %s")" "${fragment}"
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plainerr "$(gettext "Aborting...")"
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exit 1
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esac
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fi
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if [[ ${fragment%%=*} = tag ]]; then
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tagname="$(git tag -l --format='%(tag)' "$ref")"
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if [[ -n $tagname && $tagname != "$ref" ]]; then
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error "$(gettext "Failure while checking out version %s, the git tag has been forged")" "$ref"
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plainerr "$(gettext "Aborting...")"
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exit 1
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fi
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fi
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if [[ $ref != "origin/HEAD" ]] || (( updating )) ; then
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if ! git checkout --force --no-track -B makepkg "$ref" --; then
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error "$(gettext "Failure while creating working copy of %s %s repo")" "${repo}" "git"
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plainerr "$(gettext "Aborting...")"
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exit 1
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fi
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fi
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popd &>/dev/null
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}
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