git_cl: Add reverse issue lookup.
Add the ability to lookup the branch(es) corresponding to a specific
issue. This helps keep track of issues when switching between multiple
branches.
BUG=None
TEST=None
Review URL: https://codereview.chromium.org/969263002
git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@294307 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/git_cl.py b/git_cl.py
index 41ed20c..d838b9d 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -1477,17 +1477,38 @@
Pass issue number 0 to clear the current issue.
"""
- _, args = parser.parse_args(args)
+ parser.add_option('-r', '--reverse', action='store_true',
+ help='Lookup the branch(es) for the specified issues. If '
+ 'no issues are specified, all branches with mapped '
+ 'issues will be listed.')
+ options, args = parser.parse_args(args)
- cl = Changelist()
- if len(args) > 0:
- try:
- issue = int(args[0])
- except ValueError:
- DieWithError('Pass a number to set the issue or none to list it.\n'
- 'Maybe you want to run git cl status?')
- cl.SetIssue(issue)
- print 'Issue number: %s (%s)' % (cl.GetIssue(), cl.GetIssueURL())
+ if options.reverse:
+ branches = RunGit(['for-each-ref', 'refs/heads',
+ '--format=%(refname:short)']).splitlines()
+
+ # Reverse issue lookup.
+ issue_branch_map = {}
+ for branch in branches:
+ cl = Changelist(branchref=branch)
+ issue_branch_map.setdefault(cl.GetIssue(), []).append(branch)
+ if not args:
+ args = sorted(issue_branch_map.iterkeys())
+ for issue in args:
+ if not issue:
+ continue
+ print 'Branch for issue number %s: %s' % (
+ issue, ', '.join(issue_branch_map.get(int(issue)) or ('None',)))
+ else:
+ cl = Changelist()
+ if len(args) > 0:
+ try:
+ issue = int(args[0])
+ except ValueError:
+ DieWithError('Pass a number to set the issue or none to list it.\n'
+ 'Maybe you want to run git cl status?')
+ cl.SetIssue(issue)
+ print 'Issue number: %s (%s)' % (cl.GetIssue(), cl.GetIssueURL())
return 0
