abuild: implement check and $checkdepends support.

The check() function is an APKBUILD overridable function which runs a testsuite.  The packages listed in
$checkdepends are packages which will be installed at build time only if check() will be run.

abuild.in

@@ -66,6 +66,12 @@ cross_compiling() {
 	test "$CBUILD" != "$CHOST" -a -n "$CBUILDROOT"
 }
 
+want_check() {
+	cross_compiling && return 1
+	options_has "!check" && return 1
+	return 0
+}
+
 cleanup() {
 	local i=
 	[ -z "$subpkgdir" ] && set_xterm_title ""
@@ -199,6 +205,7 @@ default_sanitycheck() {
 	[ -n "$pkguser" ] && spell_error pkguser pkgusers
 	[ -n "$pkggroup" ] && spell_error pkggroup pkggroups
 	[ -n "$subpackage" ] && spell_error subpackage subpackages
+	[ -n "$checkdepend" ] && spell_error checkdepend checkdepends
 
 	check_maintainer || die "Provide a valid RFC822 maintainer address"
 
@@ -1365,18 +1372,21 @@ create_apks() {
 }
 
 build_abuildrepo() {
-	local d apk _build=build
+	local d apk _build=build _check=check
 	if ! is_function package; then
 		# if package() is missing then build is called from rootpkg
 		_build=true
 	fi
+	if ! want_check; then
+		_check=true
+	fi
 	if ! apk_up2date || [ -n "$force" ]; then
 		# check early if we have abuild key
 		abuild-sign --installed || return 1
 		logcmd "building $repo/$pkgname-$pkgver-r$pkgrel"
 		sanitycheck && builddeps && clean && fetch && unpack \
-			&& prepare && mkusers && $_build && rootpkg \
-			&& cleanup $CLEANUP \
+			&& prepare && mkusers && $_build && $_check \
+			&& rootpkg && cleanup $CLEANUP \
 			|| return 1
 	fi
 	update_abuildrepo_index
@@ -1417,6 +1427,15 @@ update_abuildrepo_index() {
 	done
 }
 
+# predefined function check
+default_check() {
+	warning "APKBUILD does not run any tests - define a check() function!"
+}
+
+check() {
+	default_check
+}
+
 # predefined splitfunc doc
 default_doc() {
 	depends="$depends_doc"
@@ -1715,11 +1734,14 @@ parse_aports_makedepends() {
 		subpackages=
 		depends=
 		makedepends=
+		checkdepends=
 		. $i
 		dir=${i%/APKBUILD}
 		deps=
 		# filter out conflicts from deps and version info
-		for j in $depends $makedepends; do
+		wantdepends="$depends $makedepends"
+		want_check && wantdepends="$wantdepends $checkdepends"
+		for j in $wantdepends; do
 			case "$j" in
 				!*) continue;;
 			esac
@@ -1792,6 +1814,7 @@ calcdeps() {
 		done
 	else
 		[ -z "$makedepends" ] && makedepends="$makedepends_build $makedepends_host"
+		want_check && makedepends="$makedepends $checkdepends"
 		for i in $1 $depends $makedepends; do
 			[ "$pkgname" = "${i%%[<>=]*}" ] && continue
 			list_has $i $builddeps && continue
@@ -2147,6 +2170,7 @@ usage() {
 
 		Commands:
 		  build       Compile and install package into \$pkgdir
+		  check       Run any defined tests concerning the package
 		  checksum    Generate checksum to be included in APKBUILD
 		  clean       Remove temp build and install dirs
 		  cleancache  Remove downloaded files from \$SRCDEST