From 19896860cab0ecee691bf336c98c2c2b18ea5e20 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <LukeShu@sbcglobal.net>
Date: Wed, 5 Mar 2014 11:20:14 -0500
Subject: dagpkg: Do a couple things the librelib way

---
 src/dagpkg | 71 +++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 36 insertions(+), 35 deletions(-)

diff --git a/src/dagpkg b/src/dagpkg
index 090d45d..1e13114 100755
--- a/src/dagpkg
+++ b/src/dagpkg
@@ -3,8 +3,8 @@
 # dagpkg - create a directed graph of package dependencies and build
 #          them in topological order
 # 
-# (c) 2014  Nicolás Reynolds <fauno@parabola.nu>
-#           Michał Masłowski <mtjm@mtjm.eu>
+# Copyright (C) 2014 Nicolás Reynolds <fauno@parabola.nu>
+# Copyright (C) 2014 Michał Masłowski <mtjm@mtjm.eu>
 #
 # 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
@@ -20,37 +20,42 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 set -e
 
+source $(librelib conf)
+
 # Source variables from libretools
-source /etc/libretools.conf
-source $XDG_CONFIG_HOME/libretools/libretools.conf &>/dev/null || true
+load_files libretools
+check_vars libretools FULLBUILDCMD || exit 1
+#check_vars libretools HOOKPREBUILD HOOKLOCALRELEASE || exit 1 # optional
 
 # Source variables from makepkg
-source /etc/makepkg.conf
-source $XDG_CONFIG_HOME/.makepkg.conf &>/dev/null || true
+load_files makepkg
+check_vars makepkg CARCH || exit 1
+
 
 # End inmediately but print an useful message
 trap_exit() {
+	local signal=$1; shift
+	local msg=("$@")
 	term_title "error!"
+	echo
 	error "(%s) %s (leftovers on %s)" \
-		"${0##*/}" "$@" "${temp_dir}"
-	exit 1
+		"${0##*/}" "$(print "${msg[@]}")" "${temp_dir}"
+	trap -- "$signal"
+	kill "-$signal" "$$"
 }
 
-# Trap signals from makepkg
-trap 'trap_exit "TERM signal caught. Exiting..."' TERM HUP QUIT
-trap 'trap_exit "Aborted by user! Exiting..."' INT
-trap 'trap_exit "An unknown error has occurred. Exiting..."' ERR
+setup_traps trap_exit
 
 source_pkgbuild() {
 	# Source this PKGBUILD, if it doesn't exist, exit
-	unset pkgbase pkgname depends makedepends
-	unset pkgrel pkgver epoch
-	if ! source ./PKGBUILD &>/dev/null ; then
+	if ! load_PKGBUILD &>/dev/null; then
 		error "No PKGBUILD in %s" "$PWD"
 		exit 1
 	fi
 
 	# Save resources
+	# This is intentionally less exhaustive than unset_PKGBUILD()
+	# XXX: document which things we actually *want* to not be unset.
 	unset pkgdesc license groups backup install md5sums sha1sums \
 		sha256sums source options &>/dev/null
 
@@ -70,17 +75,6 @@ source_pkgbuild
 temp_dir="${1:-$(mktemp -dt ${name}-testpkg-XXXX)}"
 log="${temp_dir}/buildorder"
 
-# Generate the full version with epoch
-get_fullver() {
-	if [ $1 -eq 0 ]; then
-		# zero epoch case, don't include it in version
-		echo $2-$3
-	else
-		echo $1:$2-$3
-	fi
-
-}
-
 # Mark array for DFS-based topological sort.  See
 # https://en.wikipedia.org/wiki/Topological_sort for an explanation of
 # the algorithm.  Key: package name, value: 0 for unvisited package, 1
@@ -96,8 +90,9 @@ visit_pkgbuild() {
 	source_pkgbuild
 
 	# If it's already built we don't bother
-	is_built ${pkgname[0]} $(get_fullver ${epoch:-0} ${pkgver} ${pkgrel}) &&
-	return
+	if is_built "${pkgname[0]}" "$(get_full_version "${pkgname[0]}")"; then
+		return
+	fi
 
 	# Detect cycle or already visited package
 	case "${marks[$name]:-0}" in
@@ -108,13 +103,15 @@ visit_pkgbuild() {
 
 	msg "%s (%s)" ${name} ${prev}
 
-	echo "${arch[@]}" | grep -qw "$CARCH" ||
-	warning "%s isn't ported to %s yet" ${name} ${CARCH}
+	if ! in_array "${CARCH}" "${arch[@]}"; then
+		warning "%s isn't ported to %s yet" ${name} ${CARCH}
+	fi
 
 	# If the envvar I contains this package, ignore it and exit
-	echo "$I" | grep -qw "$name" &&
-	msg2 "%s ignored" ${name} &&
-	return
+	if in_array "$name" $I; then
+		msg2 "%s ignored" ${name}
+		return
+	fi
 
 	# Mark the package as being visited
 	marks[$name]=1
@@ -183,13 +180,17 @@ nl ${log} | while read order pkg; do
 	sudo -E pacman -Syu --noconfirm
 
 	# run the pre build command from libretools.conf
-	${HOOKPREBUILD}
+	if [[ -n "$HOOKPREBUILD" ]]; then
+		${HOOKPREBUILD}
+	fi
 
 	# run the build command
 	${FULLBUILDCMD}
 
 	# Run local release hook with $1 = $repo
-	${HOOKLOCALRELEASE} "$(basename "$(dirname "$w")")"
+	if [[ -n "$HOOKLOCALRELEASE" ]]; then
+		${HOOKLOCALRELEASE} "$(basename "$(dirname "$w")")"
+	fi
 
 	# it's built!
 	touch built_ok
-- 
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