upload: add support for setting hashtags

This allows users to specify custom hashtags when uploading, both via
the CLI and via the same gitconfig settings as other upload options.

Bug: https://crbug.com/gerrit/11174
Change-Id: Ia0959e25b463e5f29d704e4d06e0de793d4fc77c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/255855
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
Tested-by: Mike Frysinger <vapier@google.com>

docs/internal-fs-layout.md

@@ -172,6 +172,7 @@ The `[branch]` settings are updated by `repo start` and `git branch`.
 | review.\<url\>.autocopy       | upload        | Automatically add to `--cc=<value>` |
 | review.\<url\>.autoreviewer   | upload        | Automatically add to `--reviewers=<value>` |
 | review.\<url\>.autoupload     | upload        | Automatically answer "yes" or "no" to all prompts |
+| review.\<url\>.uploadhashtags | upload        | Automatically add to `--hashtags=<value>` |
 | review.\<url\>.uploadtopic    | upload        | Default [topic] to use |
 | review.\<url\>.username       | upload        | Override username with `ssh://` review URIs |
 | remote.\<remote\>.fetch       | sync          | Set of refs to fetch |

project.py

@@ -199,6 +199,7 @@ class ReviewableBranch(object):
 
   def UploadForReview(self, people,
                       auto_topic=False,
+                      hashtags=(),
                       draft=False,
                       private=False,
                       notify=None,
@@ -209,6 +210,7 @@ class ReviewableBranch(object):
     self.project.UploadForReview(self.name,
                                  people,
                                  auto_topic=auto_topic,
+                                 hashtags=hashtags,
                                  draft=draft,
                                  private=private,
                                  notify=notify,
@@ -1331,6 +1333,7 @@ class Project(object):
   def UploadForReview(self, branch=None,
                       people=([], []),
                       auto_topic=False,
+                      hashtags=(),
                       draft=False,
                       private=False,
                       notify=None,
@@ -1388,6 +1391,7 @@ class Project(object):
     opts = []
     if auto_topic:
       opts += ['topic=' + branch.name]
+    opts += ['t=%s' % p for p in hashtags]
 
     opts += ['r=%s' % p for p in people[0]]
     opts += ['cc=%s' % p for p in people[1]]

subcmds/upload.py

@@ -130,6 +130,12 @@ is set to "true" then repo will assume you always want the equivalent
 of the -t option to the repo command. If unset or set to "false" then
 repo will make use of only the command line option.
 
+review.URL.uploadhashtags:
+
+To add hashtags whenever uploading a commit, you can set a per-project
+or global Git option to do so. The value of review.URL.uploadhashtags
+will be used as comma delimited hashtags like the --hashtags option.
+
 # References
 
 Gerrit Code Review:  https://www.gerritcodereview.com/
@@ -140,6 +146,9 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
     p.add_option('-t',
                  dest='auto_topic', action='store_true',
                  help='Send local branch name to Gerrit Code Review')
+    p.add_option('--hashtag', '--ht',
+                 dest='hashtags', action='append', default=[],
+                 help='Add hashtags (comma delimited) to the review.')
     p.add_option('--re', '--reviewers',
                  type='string', action='append', dest='reviewers',
                  help='Request reviews from these people.')
@@ -384,6 +393,20 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
           key = 'review.%s.uploadtopic' % branch.project.remote.review
           opt.auto_topic = branch.project.config.GetBoolean(key)
 
+        # Check if hashtags should be included.
+        def _ExpandHashtag(value):
+          """Split |value| up into comma delimited tags."""
+          if not value:
+            return
+          for tag in value.split(','):
+            tag = tag.strip()
+            if tag:
+              yield tag
+        key = 'review.%s.uploadhashtags' % branch.project.remote.review
+        hashtags = set(_ExpandHashtag(branch.project.config.GetString(key)))
+        for tag in opt.hashtags:
+          hashtags.update(_ExpandHashtag(tag))
+
         destination = opt.dest_branch or branch.project.dest_branch
 
         # Make sure our local branch is not setup to track a different remote branch
@@ -401,6 +424,7 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
 
         branch.UploadForReview(people,
                                auto_topic=opt.auto_topic,
+                               hashtags=hashtags,
                                draft=opt.draft,
                                private=opt.private,
                                notify=None if opt.notify else 'NONE',