main/aports-build: make error messages retained

and clear error on first successful build

main/aports-build/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=aports-build
 pkgver=1.1
-pkgrel=2
+pkgrel=3
 pkgdesc="MQTT based build-on-git-push scripts for Alpine Linux"
 url="http://alpinelinux.org"
 arch="noarch"
@@ -19,10 +19,10 @@ source="aports-build
 	report-build-errors.lua
 	"
 
-_builddir=
+builddir="$srcdir"
 prepare() {
 	local i
-	cd "$_builddir"
+	cd "$builddir"
 	for i in $source; do
 		case $i in
 		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
@@ -31,11 +31,11 @@ prepare() {
 }
 
 build() {
-	cd "$_builddir"
+	cd "$builddir"
 }
 
 package() {
-	cd "$_builddir"
+	cd "$builddir"
 	install -Dm755 "$srcdir"/aports-build \
 		"$pkgdir"/usr/bin/aports-build || return 1
 	install -d "$pkgdir"/etc/init.d || return 1
@@ -52,4 +52,4 @@ package() {
 sha512sums="62d12aa79e8d864e2e5a2a742bcd501de1339f9e00e425055fd3e9538f88492cdba406fb5fcb2621e46501cff2412ee91c90c52ad51098925000dae20c7a87ae  aports-build
 821035bda47152c341ec94bf960fa67e3377051826712ceb74f39103e6e422777b6e082231bfb87865653d2b93b7d3154cfc24abf65a52e3e66da69412dd7e41  aports-build.initd
 93d26e2055dbb02e863bf76b64a549c100decec3fda612ce96ca1464e6d61befa9f57f202553a25cf323e67e266f532d19c7423ff070943a59b3973946d949fe  mqtt-exec.aports-build.confd
-3453e45cb687d2af6cd1c490fd5b7134f643570a84b354b57ba49295e5a0d01ef65abc0909aeb424cbe48aa280c19cc4f1dce5f4f10e5137a80395c3be00c733  report-build-errors.lua"
+ded99f4c9474e4dc91605de71919deebbeb8e2e3ebcc9d61890f327bb6220d891a9f2a6c615929cc53bd8007b1a1dbd827bc55cd5cbdd1a6661fcdafa4912950  report-build-errors.lua"

main/aports-build/report-build-errors.lua

@@ -39,9 +39,11 @@ function m.postbuild(aport, success, repodest, arch, logfile)
 		run{"scp", logfile, loghost..":"..logdir}
 	end
 
+	local topic = ("build/%s/errors"):format(hostname)
+	local payload = nil
+
 	if not success then
-		local topic = ("build/%s/errors"):format(hostname)
-		local payload =	json.encode{
+		payload = json.encode{
 			pkgname = aport.pkgname,
 			hostname = hostname,
 			reponame = aport:get_repo_name(),
@@ -51,8 +53,8 @@ function m.postbuild(aport, success, repodest, arch, logfile)
 					aport.pkgname, aport.pkgver, aport.pkgrel),
 			status = success
 		}
-		publish.single(topic, payload, nil, nil, "msg.alpinelinux.org")
 	end
+	publish.single(topic, payload, nil, true, "msg.alpinelinux.org")
 end
 
 return m