Merged be.restructure, major internal reorganization.

Added a bunch of classes to make the commands, user interfaces, and
storage backends more abstract and distinct.  This should make it much
easier to extend and maintain BE.

Features:
 * Directory restructured:
   becommands/ -> libbe/commands
   submods sorted by functionality.
 * Lots of new classes:
   Option, Argument, Command
   InputOutput, StorageCallbacks, UserInterface
   Storage
 * Consolidated ID handling in libbe.util.id
 * Transitioned VCS backends for Python-based VCSs from subprocess
   calss to internal python calls.

Plus the user-visible changes:
 * New bugdir/bug/comment ID format replaces old bug:comment format.
 * Deprecated support for `be diff` on Arch and Darcs <= 2.3.1.  A new
   backend abstraction (Storage) makes the former implementation
   ungainly.
 * Improved command completion.
 * Removed commands close, open, email_bugs, 
 * Flipped some arguments
   `be assign BUG-ID [ASSIGNEE]` -> `be status ASSIGNED BUG-ID ...`
   `be severity BUG-ID SEVERITY` -> `be severity SEVERITY BUG-ID ...`
   `be status BUG-ID STATUS` -> `be status STATUS BUG-ID ...`

In the merge:
  * Added 'commit' to list of pagerless commands.
  * Updated doc/README.dev

See
#bea86499-824e-4e77-b085-2d581fa9ccab/1100c966-9671-4bc6-8b68-6d408a910da1#
for a discussion of why the changes were made and some of the
difficulties en-route.

1 files changed, 108 insertions, 0 deletions

diff --git a/libbe/command/status.py b/libbe/command/status.py
new file mode 100644
index 0000000..57a44aa
--- /dev/null
+++ b/libbe/command/status.py
@@ -0,0 +1,108 @@
+# Copyright (C) 2008-2009 Gianluca Montecchi <gian@grys.it>
+#                         W. Trevor King <wking@drexel.edu>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import libbe
+import libbe.bug
+import libbe.command
+import libbe.command.util
+
+
+class Status (libbe.command.Command):
+    """Change a bug's status level
+
+    >>> import sys
+    >>> import libbe.bugdir
+    >>> bd = libbe.bugdir.SimpleBugDir(memory=False)
+    >>> io = libbe.command.StringInputOutput()
+    >>> io.stdout = sys.stdout
+    >>> ui = libbe.command.UserInterface(io=io)
+    >>> ui.storage_callbacks.set_bugdir(bd)
+    >>> cmd = Status(ui=ui)
+    >>> cmd._storage = bd.storage
+
+    >>> bd.bug_from_uuid('a').status
+    'open'
+    >>> ret = ui.run(cmd, args=['closed', '/a'])
+    >>> bd.flush_reload()
+    >>> bd.bug_from_uuid('a').status
+    'closed'
+    >>> ret = ui.run(cmd, args=['none', '/a'])
+    Traceback (most recent call last):
+    UserError: Invalid status level: none
+    >>> ui.cleanup()
+    >>> bd.cleanup()
+    """
+    name = 'status'
+
+    def __init__(self, *args, **kwargs):
+        libbe.command.Command.__init__(self, *args, **kwargs)
+        self.args.extend([
+                libbe.command.Argument(
+                    name='status', metavar='STATUS', default=None,
+                    completion_callback=libbe.command.util.complete_status),
+                libbe.command.Argument(
+                    name='bug-id', metavar='BUG-ID', default=None,
+                    repeatable=True,
+                    completion_callback=libbe.command.util.complete_bug_id),
+                ])
+
+    def _run(self, **params):
+        bugdir = self._get_bugdir()
+        for bug_id in params['bug-id']:
+            bug,dummy_comment = \
+                libbe.command.util.bug_comment_from_user_id(bugdir, bug_id)
+            if bug.status != params['status']:
+                try:
+                    bug.status = params['status']
+                except ValueError, e:
+                    if e.name != 'status':
+                        raise e
+                    raise libbe.command.UserError(
+                        'Invalid status level: %s' % e.value)
+        return 0
+
+    def _long_help(self):
+        longest_status_len = max([len(s) for s in libbe.bug.status_values])
+        active_statuses = []
+        for status in libbe.bug.active_status_values :
+            description = libbe.bug.status_description[status]
+            s = '%*s : %s' % (longest_status_len, status, description)
+            active_statuses.append(s)
+        inactive_statuses = []
+        for status in libbe.bug.inactive_status_values :
+            description = libbe.bug.status_description[status]
+            s = '%*s : %s' % (longest_status_len, status, description)
+            inactive_statuses.append(s)
+        ret = """
+Show or change a bug's status.
+
+If no status is specified, the current value is printed.  If a status
+is specified, it will be assigned to the bug.
+
+There are two classes of statuses, active and inactive, which are only
+important for commands like "be list" that show only active bugs by
+default.
+
+Active status levels are:
+  %s
+Inactive status levels are:
+  %s
+
+You can overide the list of allowed statuses on a per-repository basis.
+See "be set --help" for more details.
+""" % ('\n  '.join(active_statuses), '\n  '.join(inactive_statuses))
+        return ret