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, 93 insertions, 0 deletions

diff --git a/libbe/storage/util/config.py b/libbe/storage/util/config.py
new file mode 100644
index 0000000..9f95d14
--- /dev/null
+++ b/libbe/storage/util/config.py
@@ -0,0 +1,93 @@
+# Copyright (C) 2005-2009 Aaron Bentley and Panometrics, Inc.
+#                         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.
+
+"""
+Create, save, and load the per-user config file at path().
+"""
+
+import ConfigParser
+import codecs
+import os.path
+
+import libbe
+import libbe.util.encoding
+if libbe.TESTING == True:
+    import doctest
+
+
+default_encoding = libbe.util.encoding.get_filesystem_encoding()
+
+def path():
+    """Return the path to the per-user config file"""
+    return os.path.expanduser("~/.bugs_everywhere")
+
+def set_val(name, value, section="DEFAULT", encoding=None):
+    """Set a value in the per-user config file
+
+    :param name: The name of the value to set
+    :param value: The new value to set (or None to delete the value)
+    :param section: The section to store the name/value in
+    """
+    if encoding == None:
+        encoding = default_encoding
+    config = ConfigParser.ConfigParser()
+    if os.path.exists(path()) == False: # touch file or config
+        open(path(), 'w').close()       # read chokes on missing file
+    f = codecs.open(path(), 'r', encoding)
+    config.readfp(f, path())
+    f.close()
+    if value is not None:
+        config.set(section, name, value)
+    else:
+        config.remove_option(section, name)
+    f = codecs.open(path(), 'w', encoding)
+    config.write(f)
+    f.close()
+
+def get_val(name, section="DEFAULT", default=None, encoding=None):
+    """
+    Get a value from the per-user config file
+
+    :param name: The name of the value to get
+    :section: The section that the name is in
+    :return: The value, or None
+    >>> get_val("junk") is None
+    True
+    >>> set_val("junk", "random")
+    >>> get_val("junk")
+    u'random'
+    >>> set_val("junk", None)
+    >>> get_val("junk") is None
+    True
+    """
+    if os.path.exists(path()):
+        if encoding == None:
+            encoding = default_encoding
+        config = ConfigParser.ConfigParser()
+        f = codecs.open(path(), 'r', encoding)
+        config.readfp(f, path())
+        f.close()
+        try:
+            return config.get(section, name)
+        except ConfigParser.NoOptionError:
+            return default
+    else:
+        return default
+
+if libbe.TESTING == True:
+    suite = doctest.DocTestSuite()