improve FreeBSD and orb packaging

builder-web.opam

@@ -13,10 +13,6 @@ build: [
   ["sh" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
 ]
 
-install: [
-  ["cp" "builder_web.txz" "%{bin}%/"] {os = "freebsd"}
-]
-
 depends: [
   "builder"
   "dream"

packaging/FreeBSD/create_package.sh

@@ -1,5 +1,12 @@
 #!/bin/sh -e
 
+# only execute anything if either
+# - running under orb with package = builder
+# - not running under opam at all
+if [ "$ORB_BUILDING_PACKAGE" != "builder-web" -a "$OPAM_PACKAGE_NAME" != "" ]; then
+    exit 0;
+fi
+
 basedir=$(realpath "$(dirname "$0")"/../..)
 pdir=$basedir/packaging/FreeBSD
 bdir=$basedir/_build/install/default/bin
@@ -14,9 +21,7 @@ libexecdir=$rootdir/usr/local/libexec
 
 trap 'rm -rf $tmpd' 0 INT EXIT
 
-mkdir -p "$rootdir"/usr/local/sbin \
-         "$rootdir"/usr/local/libexec \
-         "$rootdir"/usr/local/etc/rc.d
+mkdir -p "$sbindir" "$libexecdir" "$rcdir"
 
 # stage service scripts
 install -U $pdir/rc.d/builder_web $rcdir/builder_web
@@ -45,4 +50,4 @@ sed -e "s:%%FLATSIZE%%:${flatsize}:" "$pdir/MANIFEST" > "$manifest"
 export SOURCE_DATE_EPOCH=$(git log -1 --pretty=format:%ct)
 pkg create -r "$rootdir" -M "$manifest" -o $basedir/
 mv $basedir/builder_web-*.txz $basedir/builder_web.txz
-rm $basedir/builder-web.install
+echo 'bin: [ "builder_web.txz" ]' > builder-web.install