buildpackage-rpm: support setting the 'VCS:' tag in spec

Now gbp buildpackage-rpm is able to update the 'VCS:' tag in the exported
spec file. A new config option 'spec-vcs-tag' controls the format:
- if empty, no 'VCS' tag is inserted and possible old 'VCS' tag is
  removed
- otherwise, a 'VCS' tag is inserted or the old 'VCS' tag is updated

The spec-vcs-tag is a format string which supports the following
keywords:
- '%(commit)' expands to the full commit sha1
- '%(commitish)' expands to the sha1 of the exported object (commit or
   tag)
- '%(tagname)s' expands to the long tag name (from git-describe)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/gbp/scripts/buildpackage_rpm.py b/gbp/scripts/buildpackage_rpm.py
index 85024973..16b5eb56 100644
--- a/gbp/scripts/buildpackage_rpm.py
+++ b/gbp/scripts/buildpackage_rpm.py
@@ -430,6 +430,7 @@ def build_parser(name, prefix=None, git_treeish=None):
                                         dest="packaging_dir")
     export_group.add_config_file_option(option_name="spec-file",
                                         dest="spec_file")
+    export_group.add_config_file_option("spec-vcs-tag", dest="spec_vcs_tag")
     return parser
 
 
@@ -615,6 +616,10 @@ def main(argv):
                                    'GBP_SHA1': sha})()
         else:
             vcs_info = get_vcs_info(repo, tree)
+
+        # Put 'VCS:' tag to .spec
+        spec.set_tag('VCS', None, format_str(options.spec_vcs_tag, vcs_info))
+        spec.write_spec_file()
     except KeyboardInterrupt:
         retval = 1
         gbp.log.err("Interrupted. Aborting.")