add a merge-and-push command

By defult if will:
* pull rebase master branch on origin
* rebase current feature branch with respect to master
* merge feature branch to master
* propose to delete copy of feature branch on origin
* push master to origin
* delete local feature branch

git_redmine.py

@@ -308,6 +308,112 @@ def new(ctx):
         ctx.invoke(take, issue_number=issue.id)
 
 
+class MyProgressPrinter(git.RemoteProgress):
+    def update(self, op_code, cur_count, max_count=None, message=''):
+        print(op_code, cur_count, max_count, cur_count / (max_count or 100.0), message or "NO MESSAGE")
+
+
+@redmine.command(name='merge-and-push')
+@click.argument('target_branch', default='master')
+def merge_and_pus(target_branch):
+    repo = get_repo()
+    origin = repo.remote()
+
+    if repo.head.is_detached:
+        raise click.UsageError('Your cannot merge from a detached HEAD.')
+
+    if repo.is_dirty():
+        raise click.UsageError('Your cannot merge, your repo is dirty.')
+
+    current_head = repo.head.ref.name
+
+    if current_head == target_branch:
+        raise click.UsageError('Your cannot merge on %s as your are already on it.')
+
+    try:
+        repo.branches[target_branch]
+    except IndexError:
+        raise click.UsageError('%r is not a local branch.' % target_branch)
+
+    try:
+        click.echo(u'Checking-out branch « %s » ... ' % target_branch, nl=False)
+        repo.branches[target_branch].checkout()
+        click.echo(click.style('Done.', fg='green'))
+        click.echo(u'Pull-rebasing from remote « %s » onto branch « %s » ... ' % (origin.name, target_branch), nl=False)
+        failure = False
+        for pi in origin.pull(rebase=True):
+            if pi.flags & pi.ERROR:
+                failure = True
+                click.echo(click.style(u'Pull-rebase from « %s » failed: %s.' % (
+                    pi.ref.name, pi.note), fg='red'))
+        click.echo(click.style('Done.', fg='green'))
+        if failure:
+            raise click.ClickException('Pull rebase failed.')
+    finally:
+        click.echo(u'Checking-out branch « %s »... ' % current_head, nl=False)
+        repo.branches[current_head].checkout()
+        click.echo(click.style('Done.', fg='green'))
+
+    try:
+        click.echo(u'Rebasing branch « %s » onto branch « %s » ... ' % (current_head, target_branch), nl=False)
+        repo.git.rebase(target_branch)
+    except git.GitCommandError as e:
+        click.echo(click.style('command %r failed, aborting.' % e.command, fg='red'))
+        try:
+            repo.git.rebase(abort=True)
+        except git.GitCommandError as e:
+            click.echo(click.style('rebase abort failed, %s\n%s.' % (e.stdout, e.stderr), fg='red'))
+        raise click.Abort()
+    click.echo(click.style('Done.', fg='green'))
+    try:
+        click.echo('Checking-out to %s... ' % target_branch, nl=False)
+        repo.branches[target_branch].checkout()
+        click.echo(click.style('Done.', fg='green'))
+        click.echo(u'Merging branch « %s » into « %s » ... ' % (current_head, target_branch), nl=False)
+        try:
+            repo.git.merge(current_head, ff=True)
+        except git.GitCommandError as e:
+            click.echo(click.style('command %r failed, aborting.' % e.command, fg='red'))
+            try:
+                repo.git.merge(abort=True)
+            except git.GitCommandError as e:
+                click.echo(click.style('merge abort failed, %s\n%s.' % (e.stdout, e.stderr), fg='red'))
+            raise click.Abort()
+
+        click.echo(click.style('Done.', fg='green'))
+        try:
+            origin.refs[current_head]
+        except IndexError:
+            pass
+        else:
+            if click.confirm(u'Do you want to delete feature branch « %s » on remote « %s » ?' % (
+                    current_head, origin.name)):
+                for pi in origin.push(refspec=':%s' % current_head):
+                    if pi.flags & pi.ERROR:
+                        click.echo(click.style(u'Push from « %s » to « %s » failed.' % (
+                            pi.local_ref.name, pi.remote_ref.name, pi.summary), fg='red'))
+        if click.confirm(u'Do you want to push « %s » on remote « %s » ?' % (target_branch, repo.remote().name)):
+            for pi in origin.push():
+                if pi.flags & pi.ERROR:
+                    click.echo(click.style(u'Push from « %s » to « %s » failed: %s.' % (
+                        pi.local_ref.name, pi.remote_ref.name, pi.summary), fg='red'))
+        if click.confirm(u'Do you want to delete feature branch « %s » ?' % current_head):
+            repo.delete_head(repo.branches[current_head])
+        else:
+            repo.branches[current_head].checkout()
+    except Exception:
+        click.echo(click.style(u'\nFailure going back to branch « %s ».' % current_head, fg='red'))
+        repo.branches[current_head].checkout()
+        raise
+
+
+@issue.command(name='open')
+@click.option('--issue', default=None, type=int)
+def _open(issue):
+    issue = get_issue(issue)
+    subprocess.call(['xdg-open', issue.url])
+
+
 @project.command()
 @click.argument('project_id')
 def set(project_id):
@@ -315,9 +421,9 @@ def set(project_id):
     api = get_redmine_api()
     try:
         api.project.get(project_id)
-    except:
+    except Exception:
         raise click.UsageError('Project %s is unknown' % project_id)
-    repo = git.Repo()
+    repo = get_repo()
     config_writer = repo.config_writer()
     if not config_writer.has_section('redmine'):
         config_writer.add_section('redmine')