appdata: Modernize, and translate it

This also revealed our translations were busted for .desktop files
as well, so rework the POTFILES.in generation to account for it

data/virt-manager.appdata.xml

@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright 2013 Cole Robinson -->
-<application>
- <id type="desktop">virt-manager.desktop</id>
- <metadata_license>CC0-1.0</metadata_license>
- <project_license>GPL-2.0+</project_license>
- <name>Virtual Machine Manager</name>
- <summary>Graphically manage KVM, Xen, or LXC via libvirt</summary>
- <description>
-  <p>
-   Virtual Machine Manager provides a graphical tool for administering virtual
-   machines for KVM, Xen, and LXC. Start, stop, add or remove virtual devices,
-   connect to a graphical or serial console, and see resource usage statistics
-   for existing VMs on local or remote machines. Uses libvirt as the backend
-   management API.
-  </p>
- </description>
- <screenshots>
-  <screenshot type="default">http://virt-manager.org/appdata/en_US/manager.png</screenshot>
-  <screenshot>http://virt-manager.org/appdata/en_US/details.png</screenshot>
-  <screenshot>http://virt-manager.org/appdata/en_US/console.png</screenshot>
- </screenshots>
- <url type="homepage">http://www.virt-manager.org/</url>
- <updatecontact>virt-tools-list@redhat.com</updatecontact>
-</application>

data/virt-manager.appdata.xml.in

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>virt-manager.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-2.0+</project_license>
+  <_name>Virtual Machine Manager</_name>
+  <_summary>Graphically manage KVM, Xen, or LXC via libvirt</_summary>
+  <description>
+    <_p>
+   Virtual Machine Manager provides a graphical tool for administering virtual
+   machines for KVM, Xen, and LXC. Start, stop, add or remove virtual devices,
+   connect to a graphical or serial console, and see resource usage statistics
+   for existing VMs on local or remote machines. Uses libvirt as the backend
+   management API.
+  </_p>
+  </description>
+  <screenshots>
+    <screenshot type="default">
+      <image>http://virt-manager.org/appdata/en_US/manager.png</image>
+      <_caption>Main manager window</_caption>
+    </screenshot>
+    <screenshot>
+      <image>http://virt-manager.org/appdata/en_US/details.png</image>
+      <_caption>Virtual machine configuration screen</_caption>
+    </screenshot>
+    <screenshot>
+      <image>http://virt-manager.org/appdata/en_US/console.png</image>
+      <_caption>Graphical console connection for a virtual vachine</_caption>
+    </screenshot>
+  </screenshots>
+  <url type="homepage">http://www.virt-manager.org/</url>
+  <url type="bugtracker">https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Tools&amp;component=virt-manager</url>
+  <update_contact>virt-tools-list@redhat.com</update_contact>
+  <translation type="gettext">virt-manager</translation>
+</component>

setup.py

@@ -24,6 +24,14 @@ sysprefix = distutils.sysconfig.get_config_var("prefix")
 
 # pylint: disable=attribute-defined-outside-init
 
+_desktop_files = [
+    ("share/applications", ["data/virt-manager.desktop.in"]),
+]
+_appdata_files = [
+    ("share/appdata", ["data/virt-manager.appdata.xml.in"]),
+]
+
+
 def _generate_potfiles_in():
     def find(dirname, ext):
         ret = []
@@ -42,8 +50,12 @@ def _generate_potfiles_in():
     potfiles += "\n".join(find("virtconv", "*.py")) + "\n\n"
     potfiles += "\n".join(find("virtinst", "*.py")) + "\n\n"
 
+    for ignore, filelist in _desktop_files + _appdata_files:
+        potfiles += "\n".join(filelist) + "\n"
+    potfiles += "\n"
+
     potfiles += "\n".join(["[type: gettext/glade]" + f for
-                          f in find("ui", "*.ui")])
+                          f in find("ui", "*.ui")]) + "\n\n"
 
     return potfiles
 
@@ -75,13 +87,8 @@ class my_build_i18n(distutils.command.build.build):
 
     def _run(self):
         # Borrowed from python-distutils-extra
-        desktop_files = [
-            ("share/applications", ["data/virt-manager.desktop.in"]),
-            ("share/appdata", ["data/virt-manager.appdata.xml"]),
-        ]
         po_dir = "po"
 
-
         # Update po(t) files and print a report
         # We have to change the working dir to the po dir for intltool
         cmd = ["intltool-update",
@@ -112,7 +119,8 @@ class my_build_i18n(distutils.command.build.build):
             self.distribution.data_files.append((targetpath, (mo_file,)))
 
         # merge .in with translation
-        for (file_set, switch) in [(desktop_files, "-d")]:
+        for (file_set, switch) in [(_desktop_files, "-d"),
+                                   (_appdata_files, "-x")]:
             for (target, files) in file_set:
                 build_target = os.path.join("build", target)
                 if not os.path.exists(build_target):