scripts: Rework the release tarball layout

Adding everything to a `GStreamer-doc-%(project_version)` folder.
Printing release output directory

Fixes gstreamer/gst-docs#35

Part-of: <gstreamer/gst-docs!92>

meson.build

@@ -116,7 +116,7 @@ readme = configure_file(input: 'scripts/RELEASE_README.md',
 run_target('release',
   command: [find_program('scripts/release.py'),
             gstreamer_doc.full_path(),
-            'GStreamer-doc-@0@.tar.xz'.format(meson.project_version()),
+            'GStreamer-doc-@0@'.format(meson.project_version()),
             join_paths(meson.current_build_dir(), 'README.md')],
   depends: [gstreamer_doc]
 )

scripts/release.py

@@ -6,12 +6,13 @@ import tarfile
 
 if __name__ == "__main__":
     files = sys.argv[1]
-    outname = sys.argv[2]
+    release_name = sys.argv[2]
     readme = sys.argv[3]
+    outname = release_name + '.tar.xz'
 
+    print("Generating %s" % os.path.realpath(os.path.join(os.path.curdir, outname)), file=sys.stderr)
     tar = tarfile.open(outname, 'w:xz')
-    os.chdir(files)
-    tar.add(os.path.curdir)
+    tar.add(files, release_name)
     os.chdir(os.path.dirname(readme))
-    tar.add(os.path.basename(readme))
+    tar.add(os.path.basename(readme), os.path.join(release_name, os.path.basename(readme)))
     tar.close()
\ No newline at end of file