From 91d590c01521449cce67c7eb8876c9e317aeebe8 Mon Sep 17 00:00:00 2001
From: Eli Schwartz <eschwartz@archlinux.org>
Date: Mon, 25 Nov 2019 23:39:44 -0500
Subject: [pacman-dev] [PATCH] makepkg: implement --question, like in make

This returns 0 if the package is fully built, or else returns failure.

Implements FS#18709

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
---
 scripts/makepkg.sh.in | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index b1fa96f7..2dcc45c5 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -70,6 +70,7 @@ NOEXTRACT=0
 PKGFUNC=0
 PKGVERFUNC=0
 PREPAREFUNC=0
+QUESTION=0
 REPKG=0
 REPRODUCIBLE=0
 RMDEPS=0
@@ -870,7 +871,9 @@ check_build_status() {
 		pkgarch=$(get_pkg_arch)
 		if [[ -f $PKGDEST/${pkgname}-${fullver}-${pkgarch}${PKGEXT} ]] \
 				 && ! (( FORCE || SOURCEONLY || NOBUILD || NOARCHIVE)); then
-			if (( INSTALL )); then
+			if (( QUESTION )); then
+				exit 0
+			elif (( INSTALL )); then
 				warning "$(gettext "A package has already been built, installing existing package...")"
 				install_package
 				exit $?
@@ -893,7 +896,9 @@ check_build_status() {
 		done
 		if ! (( FORCE || SOURCEONLY || NOBUILD || NOARCHIVE)); then
 			if (( allpkgbuilt )); then
-				if (( INSTALL )); then
+				if (( QUESTION )); then
+					exit 0
+				elif (( INSTALL )); then
 					warning "$(gettext "The package group has already been built, installing existing packages...")"
 					install_package
 					exit $?
@@ -902,13 +907,17 @@ check_build_status() {
 					exit $E_ALREADY_BUILT
 				fi
 			fi
-			if (( somepkgbuilt && ! PKGVERFUNC )); then
+			if (( somepkgbuilt && ! QUESTION && ! PKGVERFUNC )); then
 				error "$(gettext "Part of the package group has already been built. (use %s to overwrite)")" "-f"
 				exit $E_ALREADY_BUILT
 			fi
 		fi
 		unset allpkgbuilt somepkgbuilt
 	fi
+	if (( QUESTION )); then
+		# not all packages were built, or we would exit above
+		exit 1
+	fi
 }
 
 backup_package_variables() {
@@ -964,6 +973,7 @@ usage() {
 	printf -- "$(gettext "  -m, --nocolor    Disable colorized output messages")\n"
 	printf -- "$(gettext "  -o, --nobuild    Download and extract files only")\n"
 	printf -- "$(gettext "  -p <file>        Use an alternate build script (instead of '%s')")\n" "$BUILDSCRIPT"
+	printf -- "$(gettext "  -q, --question   Do nothing; exit status says if package has already been built")"
 	printf -- "$(gettext "  -r, --rmdeps     Remove installed dependencies after a successful build")\n"
 	printf -- "$(gettext "  -R, --repackage  Repackage contents of the package without rebuilding")\n"
 	printf -- "$(gettext "  -s, --syncdeps   Install missing dependencies with %s")\n" "pacman"
@@ -1022,11 +1032,11 @@ fi
 ARGLIST=("$@")
 
 # Parse Command Line Options.
-OPT_SHORT="AcCdefFghiLmop:rRsSV"
+OPT_SHORT="AcCdefFghiLmop:qrRsSV"
 OPT_LONG=('allsource' 'check' 'clean' 'cleanbuild' 'config:' 'force' 'geninteg'
           'help' 'holdver' 'ignorearch' 'install' 'key:' 'log' 'noarchive' 'nobuild'
           'nocolor' 'nocheck' 'nodeps' 'noextract' 'noprepare' 'nosign' 'packagelist'
-          'printsrcinfo' 'repackage' 'rmdeps' 'sign' 'skipchecksums' 'skipinteg'
+          'printsrcinfo' 'question' 'repackage' 'rmdeps' 'sign' 'skipchecksums' 'skipinteg'
           'skippgpcheck' 'source' 'syncdeps' 'verifysource' 'version')
 
 # Pacman Options
@@ -1072,6 +1082,7 @@ while true; do
 		-p)               shift; BUILDFILE=$1 ;;
 		--packagelist)    BUILDPKG=0 PACKAGELIST=1 ;;
 		--printsrcinfo)   BUILDPKG=0 PRINTSRCINFO=1 IGNOREARCH=1;;
+		-q|--question)    QUESTION=1 ;;
 		-r|--rmdeps)      RMDEPS=1 ;;
 		-R|--repackage)   REPKG=1 ;;
 		--sign)           SIGNPKG='y' ;;
@@ -1304,7 +1315,7 @@ if (( PRINTSRCINFO )); then
 	exit $E_OK
 fi
 
-if (( ! PKGVERFUNC )); then
+if (( QUESTION || ! PKGVERFUNC )); then
 	check_build_status
 fi
 
-- 
2.24.0