[ostree] ostbuild: Add --recompose argument

[Colin Walters <walters src gnome org>]

commit f1e38d6e4b38ed8f521d34e099a8feb9bf28c19f
Author: Colin Walters <walters verbum org>
Date:   Thu Feb 16 18:30:42 2012 -0500

    ostbuild: Add --recompose argument
    
    This is necessary to run after rebuilding the Yocto base.

 src/ostbuild/pyostbuild/builtin_build.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/ostbuild/pyostbuild/builtin_build.py b/src/ostbuild/pyostbuild/builtin_build.py
index b287ad2..21c7f4e 100755
--- a/src/ostbuild/pyostbuild/builtin_build.py
+++ b/src/ostbuild/pyostbuild/builtin_build.py
@@ -269,6 +269,7 @@ class OstbuildBuild(builtins.Builtin):
     def execute(self, argv):
         parser = argparse.ArgumentParser(description=self.short_description)
         parser.add_argument('--skip-built', action='store_true')
+        parser.add_argument('--recompose', action='store_true')
         parser.add_argument('--start-at')
         parser.add_argument('--shell-on-failure', action='store_true')
         parser.add_argument('--debug-shell', action='store_true')
@@ -289,7 +290,9 @@ class OstbuildBuild(builtins.Builtin):
         self.patchdir = os.path.join(self.workdir, 'patches')
 
         components = self.manifest['components']
-        if len(args.components) == 0:
+        if args.recompose:
+            build_components = []
+        elif len(args.components) == 0:
             build_components = components
         else:
             build_components = []