main/aports-build: fix build error reporting

use mosquitto_pub config for setting user/password for mqtt broker

(cherry picked from commit ce37163b)
(cherry picked from commit fa0f6c38)
(cherry picked from commit 5395cf24)
(cherry picked from commit 99067f5d)

main/aports-build/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=aports-build
-pkgver=1.5.3
+pkgver=1.5.4
 pkgrel=0
 pkgdesc="MQTT based build-on-git-push scripts for Alpine Linux"
 url="https://alpinelinux.org"
@@ -46,7 +46,9 @@ package() {
 	EOF
 }
 
-sha512sums="81c039c6999fddde2489fccdc48b29760c80ea1ff5265cc2d7f73d6575e0173a0f51b89a4d49e5100e2d841b6260adc48e4ab00e8608d52b3b69b17a590467ad  aports-build
+sha512sums="
+81c039c6999fddde2489fccdc48b29760c80ea1ff5265cc2d7f73d6575e0173a0f51b89a4d49e5100e2d841b6260adc48e4ab00e8608d52b3b69b17a590467ad  aports-build
 821035bda47152c341ec94bf960fa67e3377051826712ceb74f39103e6e422777b6e082231bfb87865653d2b93b7d3154cfc24abf65a52e3e66da69412dd7e41  aports-build.initd
 62ed5cb6d1fef03fa707512c8c99c572a91e64706ebcc2e7097108811818615618bab908292d0ba0ad2afe93a27333d9c91deb347d6c99703eb8983d1ee5f480  mqtt-exec.aports-build.confd
-cf0d8e65e517857ee781e451a1d3e6404cd72aeb5c7dba25017229ff79c4c43425712d2fcbbaad89af45a358e86f33467ac1df47e8fba0f30f81d84794e1206c  report-build-errors.lua"
+939ba54ab4159bc8fcd0cb08f16f67dac05d29c77005da6fca0463048ab991765665b35f2feb978bfd8409bd13fdbdf3d47a7652df842e76504d076ac040c337  report-build-errors.lua
+"

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

@@ -6,6 +6,26 @@ local f = io.open("/proc/sys/kernel/hostname")
 hostname = f:read()
 f:close()
 
+local function read_mosquitto_conf()
+	local cfg = {}
+	local f = io.open((os.getenv("XDG_CONFIG_HOME") or "").."/mosquitto_pub") or io.open((os.getenv("HOME") or "").."/.config/mosquitto_pub")
+	if f == nil then
+		return cfg
+	end
+	for line in f:lines() do
+		key,value = line:match("^%-%-([^ ]+)%s+(.*)")
+		if key and value then
+			cfg[key] = value
+		end
+	end
+	f:close()
+	return cfg
+end
+local mcfg = read_mosquitto_conf()
+publish.hostname = mcfg.hostname or "localhost"
+publish.username = mcfg.username
+publish.password = mcfg.pw
+
 local m = {}
 
 function shell_escape(args)