add support for version epoch (#30840)

eobuilder-ctl

@@ -232,7 +232,8 @@ def prepare_build(dist, project, cmd_options, new):
                                          settings.DEBIAN_VERSIONS[dist])
     call("git checkout --quiet %s" % build_branch)
     changelog = '\n'.join(changelog_from_git(package['source_name'],
-        version_suffix, project['git_path'], package['repository']))
+        version_suffix, project['git_path'], package['repository'],
+        epoch=cmd_options.epoch))
     if changelog:
         if not os.path.isdir(debian_folder):
             call("git checkout --quiet %s" % debian_branch)
@@ -252,7 +253,7 @@ def prepare_build(dist, project, cmd_options, new):
         shutil.rmtree(project['build_dir'])
     os.makedirs(project['build_dir'], 0755)
 
-    if package['version'].split('-')[0] == project['version']:
+    if package['version'].split('-')[0].split(':')[-1] == project['version']:
         # the generated changelog has the right version number, use it.
         good_changelog_contents = changelog
     else:
@@ -261,7 +262,9 @@ def prepare_build(dist, project, cmd_options, new):
         package['version'] = '%s%s' % (project['version'], version_suffix)
         call('dch "Eobuilder version" -v %s --distribution %s \
                  --force-bad-version --force-distribution --changelog %s' % \
-                (package['version'], package["repository"], debian_changelog))
+                 ('%s:%s' % (cmd_options.epoch, package['version']) if cmd_options.epoch else package['version'],
+                  package["repository"],
+                  debian_changelog))
         good_changelog_contents = open(debian_changelog).read()
 
     build_file = os.path.join(project['lock_path'],

eobuilder/changelog.py

@@ -35,7 +35,8 @@ def is_pep0440_project(path):
 def changelog_from_git(project, version_suffix, path,
         repository='eobuilder',
         maintainer_name='eobuilder',
-        maintainer_email='eobuilder@entrouvert.com'):
+        maintainer_email='eobuilder@entrouvert.com',
+        epoch=''):
     repo = git.repo.Repo(path)
     is_pep0440 = is_pep0440_project(path)
 
@@ -73,6 +74,8 @@ def changelog_from_git(project, version_suffix, path,
             version = version.replace('.g', '+g')
         if i == 0:
             version += version_suffix
+        if epoch:
+            version = '%s:%s' % (epoch, version)
         yield '%s (%s) %s; urgency=low' % (project, str(version), repository)
         yield ''
         for l in logs:

eobuilder/cmdline.py

@@ -49,6 +49,11 @@ def parse_cmdline():
             dest="branch", metavar='NAME',
             default="master",
             help="branch to build (Default: master)")
+    parser.add_option("--epoch",
+            action="store", type="string",
+            dest="epoch", metavar='EPOCH',
+            default="",
+            help="version number epoch (default: none)")
     parser.add_option("-D", "--debian-folder",
             action="store", type="string",
             dest="debian_folder", metavar='NAME',