[gnome-ostree] build: Add --no-clean-results

[Colin Walters <walters src gnome org>]

commit 59966f28f72217af16b3002ff9c982dfbd6d04a2
Author: Colin Walters <walters verbum org>
Date:   Tue Aug 28 12:21:01 2012 -0400

    build: Add --no-clean-results
    
    Useful for debugging build failures.

 src/ostbuild/pyostbuild/builtin_build.py |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/src/ostbuild/pyostbuild/builtin_build.py b/src/ostbuild/pyostbuild/builtin_build.py
index b37b956..38d6bee 100755
--- a/src/ostbuild/pyostbuild/builtin_build.py
+++ b/src/ostbuild/pyostbuild/builtin_build.py
@@ -247,11 +247,12 @@ class OstbuildBuild(builtins.Builtin):
         if statoverride_path is not None:
             os.unlink(statoverride_path)
 
-        if os.path.islink(component_src):
-            os.unlink(component_src)
-        else:
-            shutil.rmtree(component_src)
-        shutil.rmtree(component_resultdir)
+        if not self.args.no_clean_results:
+            if os.path.islink(component_src):
+                os.unlink(component_src)
+            else:
+                shutil.rmtree(component_src)
+            shutil.rmtree(component_resultdir)
 
         return run_sync_get_output(['ostree', '--repo=' + self.repo,
                                     'rev-parse', build_ref])
@@ -354,6 +355,7 @@ class OstbuildBuild(builtins.Builtin):
         parser.add_argument('--force-rebuild', action='store_true')
         parser.add_argument('--skip-vcs-matches', action='store_true')
         parser.add_argument('--no-compose', action='store_true')
+        parser.add_argument('--no-clean-results', action='store_true')
         parser.add_argument('--no-skip-if-unchanged', action='store_true')
         parser.add_argument('--compose-only', action='store_true')
         parser.add_argument('--shell-on-failure', action='store_true')