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path: root/scripts/libmakepkg/source/hg.sh.in
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#!/bin/bash
#
#   hg.sh - function for handling the download and "extraction" of Mercurial sources
#
#   Copyright (c) 2015 Pacman Development Team <pacman-dev@archlinux.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

[[ -n "$LIBMAKEPKG_SOURCE_HG_SH" ]] && return
LIBMAKEPKG_SOURCE_HG_SH=1


LIBRARY=${LIBRARY:-'@libmakepkgdir@'}

source "$LIBRARY/util/message.sh"
source "$LIBRARY/util/pkgbuild.sh"


download_hg() {
        local netfile=$1

        local dir=$(get_filepath "$netfile")
        [[ -z "$dir" ]] && dir="$SRCDEST/$(get_filename "$netfile")"

        local repo=$(get_filename "$netfile")

        local url=$(get_url "$netfile")
        url=${url#hg+}
        url=${url%%#*}

        if [[ ! -d "$dir" ]] || dir_is_empty "$dir" ; then
                msg2 "$(gettext "Cloning %s %s repo...")" "${repo}" "hg"
                if ! hg clone -U "$url" "$dir"; then
                        error "$(gettext "Failure while downloading %s %s repo")" "${repo}" "hg"
                        plain "$(gettext "Aborting...")"
                        exit 1
                fi
        elif (( ! HOLDVER )); then
                msg2 "$(gettext "Updating %s %s repo...")" "${repo}" "hg"
                cd_safe "$dir"
                if ! hg pull; then
                        # only warn on failure to allow offline builds
                        warning "$(gettext "Failure while updating %s %s repo")" "${repo}" "hg"
                fi
        fi
}

extract_hg() {
        local netfile=$1

        local fragment=${netfile#*#}
        if [[ $fragment = "$netfile" ]]; then
                unset fragment
        fi

        local dir=$(get_filepath "$netfile")
        [[ -z "$dir" ]] && dir="$SRCDEST/$(get_filename "$netfile")"

        local repo=${netfile##*/}
        repo=${repo%%#*}

        msg2 "$(gettext "Creating working copy of %s %s repo...")" "${repo}" "hg"
        pushd "$srcdir" &>/dev/null

        local ref=tip
        if [[ -n $fragment ]]; then
                case ${fragment%%=*} in
                        branch|revision|tag)
                                ref="${fragment##*=}"
                                ;;
                        *)
                                error "$(gettext "Unrecognized reference: %s")" "${fragment}"
                                plain "$(gettext "Aborting...")"
                                exit 1
                esac
        fi

        if [[ -d "${dir##*/}" ]]; then
                cd_safe "${dir##*/}"
                if ! (hg pull && hg update -C -r "$ref"); then
                        error "$(gettext "Failure while updating working copy of %s %s repo")" "${repo}" "hg"
                        plain "$(gettext "Aborting...")"
                        exit 1
                fi
        elif ! hg clone -u "$ref" "$dir" "${dir##*/}"; then
                error "$(gettext "Failure while creating working copy of %s %s repo")" "${repo}" "hg"
                plain "$(gettext "Aborting...")"
                exit 1
        fi

        popd &>/dev/null
}