libmakepkg: extract functions for writing .SRCINFO files

Signed-off-by: Ashley Whetter <ashley@awhetter.co.uk>
Signed-off-by: Allan McRae <allan@archlinux.org>

2 files changed, 128 insertions, 0 deletions

diff --git a/scripts/libmakepkg/.gitignore b/scripts/libmakepkg/.gitignore
index 2de91e73..211a0882 100644
--- a/scripts/libmakepkg/.gitignore
+++ b/scripts/libmakepkg/.gitignore
@@ -4,6 +4,7 @@ lint_pkgbuild.sh
 lint_pkgbuild/*.sh
 source.sh
 source/*.sh
+srcinfo.sh
 tidy.sh
 tidy/*.sh
 util.sh
diff --git a/scripts/libmakepkg/srcinfo.sh.in b/scripts/libmakepkg/srcinfo.sh.in
new file mode 100644
index 00000000..83765fa5
--- /dev/null
+++ b/scripts/libmakepkg/srcinfo.sh.in
@@ -0,0 +1,127 @@
+#!/bin/bash
+#
+#   srcinfo.sh - functions for writing .SRCINFO files
+#
+#   Copyright (c) 2014-2016 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 "$LIBMAKEPKG_SRCINFO_SH" ]] && return
+LIBMAKEPKG_SRCINFO_SH=1
+
+LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
+
+source "$LIBRARY/util/pkgbuild.sh"
+
+srcinfo_open_section() {
+	printf '%s = %s\n' "$1" "$2"
+}
+
+srcinfo_close_section() {
+	echo
+}
+
+srcinfo_write_attr() {
+	# $1: attr name
+	# $2: attr values
+
+	local attrname=$1 attrvalues=("${@:2}")
+
+	# normalize whitespace, strip leading and trailing
+	attrvalues=("${attrvalues[@]//+([[:space:]])/ }")
+	attrvalues=("${attrvalues[@]#[[:space:]]}")
+	attrvalues=("${attrvalues[@]%[[:space:]]}")
+
+	printf "\t$attrname = %s\n" "${attrvalues[@]}"
+}
+
+pkgbuild_extract_to_srcinfo() {
+	# $1: pkgname
+	# $2: attr name
+	# $3: multivalued
+
+	local pkgname=$1 attrname=$2 isarray=$3 outvalue=
+
+	if get_pkgbuild_attribute "$pkgname" "$attrname" "$isarray" 'outvalue'; then
+		srcinfo_write_attr "$attrname" "${outvalue[@]}"
+	fi
+}
+
+srcinfo_write_section_details() {
+	local attr package_arch a
+	local multivalued_arch_attrs=(source provides conflicts depends replaces
+	                              optdepends makedepends checkdepends
+	                              {md5,sha{1,224,256,384,512}}sums)
+
+	for attr in "${singlevalued[@]}"; do
+		pkgbuild_extract_to_srcinfo "$1" "$attr" 0
+	done
+
+	for attr in "${multivalued[@]}"; do
+		pkgbuild_extract_to_srcinfo "$1" "$attr" 1
+	done
+
+	get_pkgbuild_attribute "$1" 'arch' 1 'package_arch'
+	for a in "${package_arch[@]}"; do
+		# 'any' is special. there's no support for, e.g. depends_any.
+		[[ $a = any ]] && continue
+
+		for attr in "${multivalued_arch_attrs[@]}"; do
+			pkgbuild_extract_to_srcinfo "$1" "${attr}_$a" 1
+		done
+	done
+}
+
+srcinfo_write_global() {
+	local singlevalued=(pkgdesc pkgver pkgrel epoch url install changelog)
+	local multivalued=(arch groups license checkdepends makedepends
+	                   depends optdepends provides conflicts replaces
+	                   noextract options backup
+	                   source validpgpkeys {md5,sha{1,224,256,384,512}}sums)
+
+	srcinfo_open_section 'pkgbase' "${pkgbase:-$pkgname}"
+	srcinfo_write_section_details ''
+	srcinfo_close_section
+}
+
+srcinfo_write_package() {
+	local singlevalued=(pkgdesc url install changelog)
+	local multivalued=(arch groups license checkdepends depends optdepends
+	                   provides conflicts replaces options backup)
+
+	srcinfo_open_section 'pkgname' "$1"
+	srcinfo_write_section_details "$1"
+	srcinfo_close_section
+}
+
+write_srcinfo_header() {
+	printf "# Generated by makepkg %s\n" "$makepkg_version"
+	printf "# %s\n" "$(LC_ALL=C date -u)"
+}
+
+write_srcinfo_content() {
+	local pkg
+
+	srcinfo_write_global
+
+	for pkg in "${pkgname[@]}"; do
+		srcinfo_write_package "$pkg"
+	done
+}
+
+write_srcinfo() {
+	write_srcinfo_header
+	write_srcinfo_content
+}