yupdate improvement

- Allow optionally skipping update of the DBus backend or the web fronend
- Set environment variable YUPDATE_SKIP_FRONTEND=1 or YUPDATE_SKIP_BACKEND=1
  to skip the frontend or backend update
- YUPDATE_SKIP_FRONTEND=1 can be used when you use the webpack development
  server for running the web frontend, in that case updating the web frontend
  does not make sense, it just takes long time and consumes additional
  disk/RAM space
- YUPDATE_SKIP_BACKEND=1 was added mainly as a complement,
  just in case somebody needs to handle the opposite case

.yupdate.pre

@@ -17,6 +17,10 @@
 #   run the yupdate script several times
 #
 
+if [ "$YUPDATE_SKIP_FRONTEND" == "1" ]; then
+  exit 0
+fi
+
 # the needed packages for compiling the d-installer cockpit module
 PACKAGES=(appstream-glib-devel make npm)
 

Rakefile

@@ -93,41 +93,45 @@ SERVICES_DIR = "/usr/share/dbus-1/d-installer-services"
 if File.exist?("/.packages.initrd") || `mount`.match?(/^[\w]+ on \/ type overlay/)
   Rake::Task["install"].clear
   task :install do
-    destdir = ENV["DESTDIR"] || "/"
-
-    puts "Installing the DBus service..."
-    Dir.chdir("service") do
-      sh "gem build d-installer.gemspec"
-      sh "gem install --local --force --no-format-exec --no-doc --build-root #{destdir.shellescape} d-installer-*.gem"
-
-      # update the DBus configuration files
-      FileUtils.mkdir_p(SERVICES_DIR)
-      sh "cp share/org.opensuse.DInstaller*.service #{SERVICES_DIR}"
-      sh "cp share/dbus.conf /usr/share/dbus-1/d-installer.conf"
-
-      # update the systemd service file
-      source_file = "share/systemd.service"
-      target_file = "/usr/lib/systemd/system/d-installer.service"
-
-      unless FileUtils.identical?(source_file, target_file)
-        FileUtils.cp(source_file, target_file)
-        sh "systemctl daemon-reload"
+    if ENV["YUPDATE_SKIP_BACKEND"] != "1"
+      destdir = ENV["DESTDIR"] || "/"
+
+      puts "Installing the DBus service..."
+      Dir.chdir("service") do
+        sh "gem build d-installer.gemspec"
+        sh "gem install --local --force --no-format-exec --no-doc --build-root #{destdir.shellescape} d-installer-*.gem"
+
+        # update the DBus configuration files
+        FileUtils.mkdir_p(SERVICES_DIR)
+        sh "cp share/org.opensuse.DInstaller*.service #{SERVICES_DIR}"
+        sh "cp share/dbus.conf /usr/share/dbus-1/d-installer.conf"
+
+        # update the systemd service file
+        source_file = "share/systemd.service"
+        target_file = "/usr/lib/systemd/system/d-installer.service"
+
+        unless FileUtils.identical?(source_file, target_file)
+          FileUtils.cp(source_file, target_file)
+          sh "systemctl daemon-reload"
+        end
       end
     end
 
-    puts "Installing the Web frontend..."
-    Dir.chdir("web") do
-      node_env = ENV["NODE_ENV"] || "production"
-      sh "NODE_ENV=#{node_env.shellescape} make install"
-
-      # clean up the extra files when switching the development/production mode
-      if node_env == "production"
-        # remove the uncompressed and development files
-        FileUtils.rm_f(Dir.glob("/usr/share/cockpit/d-installer/index.{css,html,js}"))
-        FileUtils.rm_f(Dir.glob("/usr/share/cockpit/d-installer/*.map"))
-      else
-        # remove the compressed files
-        FileUtils.rm_f(Dir.glob("/usr/share/cockpit/d-installer/*.gz"))
+    if ENV["YUPDATE_SKIP_FRONTEND"] != "1"
+      puts "Installing the Web frontend..."
+      Dir.chdir("web") do
+        node_env = ENV["NODE_ENV"] || "production"
+        sh "NODE_ENV=#{node_env.shellescape} make install"
+
+        # clean up the extra files when switching the development/production mode
+        if node_env == "production"
+          # remove the uncompressed and development files
+          FileUtils.rm_f(Dir.glob("/usr/share/cockpit/d-installer/index.{css,html,js}"))
+          FileUtils.rm_f(Dir.glob("/usr/share/cockpit/d-installer/*.map"))
+        else
+          # remove the compressed files
+          FileUtils.rm_f(Dir.glob("/usr/share/cockpit/d-installer/*.gz"))
+        end
       end
     end
   end