Merged be.target-as-bug

Highlights:
 * targets are now a special type of bug (severity 'target'), so you
   can do all the things you do with normal bugs to them as well
   (e.g. comment on them, link them into dependency trees, etc.)
 * new command `be due` to get/set bug due dates.
 * changes to `be depend`
   * added options --status, --severity
 * changes to `be list`
   * added blacklist capability to --status, --severity, --assigned
   * removed options --target, --cur-target
   Replace:
     'be list --target TARGET' with
     'be depend --status -closed,fixed,wontfix --severity -target \
        $(be target --resolve TARGET)'
     'be list --cur-target' with
     'be depend --status -closed,fixed,wontfix --severity -target \
        $(be target --resolve)'
 * changes to `be target`
   * added option --resolve
   * removed option --list
   Replace:
     'be target --list' with 'be list --status all --severity target'
 * new function cmdutil.select_values() for whitelist/blacklist selection.
 * assorted cleanups and bugfixes

1 files changed, 106 insertions, 0 deletions

diff --git a/becommands/due.py b/becommands/due.py
new file mode 100644
index 0000000..6f11ad4
--- /dev/null
+++ b/becommands/due.py
@@ -0,0 +1,106 @@
+# Copyright (C) 2009 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.
+"""Set bug due dates"""
+from libbe import cmdutil, bugdir, utility
+__desc__ = __doc__
+
+DUE_TAG="DUE:"
+
+def execute(args, manipulate_encodings=True, restrict_file_access=False):
+    """
+    >>> import os
+    >>> bd = bugdir.SimpleBugDir()
+    >>> bd.save()
+    >>> os.chdir(bd.root)
+    >>> execute(["a"], manipulate_encodings=False)
+    No due date assigned.
+    >>> execute(["a", "Thu, 01 Jan 1970 00:00:00 +0000"], manipulate_encodings=False)
+    >>> execute(["a"], manipulate_encodings=False)
+    Thu, 01 Jan 1970 00:00:00 +0000
+    >>> execute(["a", "none"], manipulate_encodings=False) # doctest: +NORMALIZE_WHITESPACE
+    >>> execute(["a"], manipulate_encodings=False)
+    No due date assigned.
+    >>> bd.cleanup()
+    """
+    parser = get_parser()
+    options, args = parser.parse_args(args)
+    cmdutil.default_complete(options, args, parser,
+                             bugid_args={0: lambda bug : bug.active==True})
+                             
+    if len(args) not in (1, 2):
+        raise cmdutil.UsageError('Incorrect number of arguments.')
+    bd = bugdir.BugDir(from_disk=True,
+                       manipulate_encodings=manipulate_encodings)
+    bug = cmdutil.bug_from_id(bd, args[0])
+    if len(args) == 1:
+        due_time = get_due(bug)
+        if due_time is None:
+            print "No due date assigned."
+        else:
+            print utility.time_to_str(due_time)
+    else:
+        if args[1] == "none":
+            remove_due(bug)
+        else:
+            due_time = utility.str_to_time(args[1])
+            set_due(bug, due_time)
+
+def get_parser():
+    parser = cmdutil.CmdOptionParser("be due BUG-ID [DATE]")
+    return parser
+
+longhelp="""
+If no DATE is specified, the bug's current due date is printed.  If
+DATE is specified, it will be assigned to the bug.
+"""
+
+def help():
+    return get_parser().help_str() + longhelp
+
+# internal helper functions
+
+def _generate_due_string(time):
+    return "%s%s" % (DUE_TAG, utility.time_to_str(time))
+
+def _parse_due_string(string):
+    assert string.startswith(DUE_TAG)
+    return utility.str_to_time(string[len(DUE_TAG):])
+
+# functions exposed to other modules
+
+def get_due(bug):
+    matched = []
+    for line in bug.extra_strings:
+        if line.startswith(DUE_TAG):
+            matched.append(_parse_due_string(line))
+    if len(matched) == 0:
+        return None
+    if len(matched) > 1:
+        raise Exception('Several due dates for %s?:\n  %s'
+                        % (bug.uuid, '\n  '.join(matched)))
+    return matched[0]
+
+def remove_due(bug):
+    estrs = bug.extra_strings
+    for due_str in [s for s in estrs if s.startswith(DUE_TAG)]:
+        estrs.remove(due_str)
+    bug.extra_strings = estrs # reassign to notice change
+
+def set_due(bug, time):
+    remove_due(bug)
+    estrs = bug.extra_strings
+    estrs.append(_generate_due_string(time))
+    bug.extra_strings = estrs # reassign to notice change