#!/bin/bash
#
# git-tp-sync - downloads the latest PO files from translationproject.org
#               and commits changes to your GIT repository.
#
# Features:
#             - commit per PO file (no more huge commits for all .po files)
#             - the commit "Author:" field is set according to the Last-Translator
#
# Copyright (C) 2007-2016 Karel Zak <kzak@redhat.com>
#
# This file 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 file 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.
#

PROJECT="xdg-user-dirs"
if [ -n "$1" ]; then
	while (( "$#" )); do
		if [ -n "$1" ]; then
			rsync  -Lrtvz  rsync://translationproject.org/tp/latest/$PROJECT/$1.po po
		fi
		shift
	done
else
	rsync  -Lrtvz  rsync://translationproject.org/tp/latest/$PROJECT/ po
fi

PO_NEW=$(git ls-files -o | gawk '/po\/[[:alpha:]_\-]*\.po/ { sub("po/", ""); print $0; }' | sort)
PO_MOD=$(git ls-files -m | gawk '/po\/[[:alpha:]_\-]*\.po/ { sub("po/", ""); print $0; }' | sort)

function get_author {
	echo $(gawk 'BEGIN { FS=": " } /Last-Translator/ { sub("\\\\n\"", ""); print $2 }' "$1")
}

function do_commit {
	local POFILE="$1"
	local MSG="$2"
	local AUTHOR=$(get_author "$POFILE")

	git commit --author "$AUTHOR" -m "$MSG" "$POFILE"
}

for f in $PO_MOD; do
	do_commit "po/$f" "po: update $f (from translationproject.org)"
done

for f in $PO_NEW; do
	git add "po/$f"
	do_commit "po/$f" "po: add $f (from translationproject.org)"
done