prometheus: Actually include separately built web assets

srcpkgs/prometheus/template

@@ -1,7 +1,7 @@
 # Template file for 'prometheus'
 pkgname=prometheus
 version=2.14.0
-revision=1
+revision=2
 build_style=go
 go_import_path="github.com/prometheus/prometheus"
 go_package="github.com/prometheus/prometheus/cmd/prometheus github.com/prometheus/prometheus/cmd/promtool"
@@ -9,6 +9,8 @@ go_ldflags="-X ${go_import_path}/version.Version=${version}
  -X ${go_import_path}/version.Revision=${version}
  -X ${go_import_path}/version.Branch=${version}
  -X ${go_import_path}/version.BuildUser=VoidLinux"
+go_build_tags="netgo,builtinassets"
+hostmakedepends="yarn"
 conf_files="/etc/prometheus/prometheus.yml"
 short_desc="Monitoring system and time series database"
 maintainer="Toyam Cox <Vaelatern@voidlinux.org>"
@@ -21,6 +23,10 @@ system_accounts="_prometheus"
 
 make_dirs="/var/lib/prometheus 700 _prometheus _prometheus"
 
+pre_build() {
+	make assets
+}
+
 post_install() {
 	vlicense LICENSE
 	vlicense NOTICE