# Copyright (C) 2005 Aaron Bentley and Panometrics, Inc.
# <abentley@panoramicfeedback.com>
#
#    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
"""Assign the root directory for bug tracking"""
from libbe import bugdir, cmdutil, rcs

def execute(args):
    """
    >>> from libbe import tests
    >>> import os
    >>> dir = tests.Dir()
    >>> try:
    ...     bugdir.tree_root(dir.name)
    ... except bugdir.NoBugDir, e:
    ...     True
    True
    >>> execute([dir.name])
    No revision control detected.
    Directory initialized.
    >>> bd = bugdir.tree_root(dir.name)
    >>> bd.root = dir.name
    >>> dir = tests.arch_dir()
    >>> os.chdir(dir.name)
    >>> execute(['.'])
    Using Arch for revision control.
    Directory initialized.
    >>> bd = bugdir.tree_root(dir.name+"/{arch}")
    >>> bd.root = dir.name
    >>> try:
    ...     execute(['.'])
    ... except cmdutil.UserError, e:
    ...     str(e).startswith("Directory already initialized ")
    Using Arch for revision control.
    True
    >>> tests.clean_up()
    >>> execute(['/highly-unlikely-to-exist'])
    Traceback (most recent call last):
    UserError: No such directory: /highly-unlikely-to-exist
    """
    options, args = get_parser().parse_args(args)
    if len(args) != 1:
        raise cmdutil.UsageError
    dir_rcs = rcs.detect(args[0])
    if dir_rcs.name is not "None":
        print "Using %s for revision control." % dir_rcs.name
    else:
        print "No revision control detected."
    try:
        bugdir.create_bug_dir(args[0], dir_rcs)
    except bugdir.NoRootEntry:
        raise cmdutil.UserError("No such directory: %s" % args[0])
    except bugdir.AlreadyInitialized:
        raise cmdutil.UserError("Directory already initialized: %s" % args[0])
    print "Directory initialized."

def get_parser():
    parser = cmdutil.CmdOptionParser("be set-root DIRECTORY")
    return parser

longhelp="""
This command initializes Bugs Everywhere support for the specified directory
and all its subdirectories.  It will auto-detect any supported revision control
system.  You can use "be set rcs_name" to change the rcs being used.

It is usually a good idea to put the Bugs Everywhere root at the source code
root, but you can put it anywhere.  If you run "be set-root" in a subdirectory,
then only bugs created in that subdirectory (and its children) will appear
there.
"""

def help():
    return get_parser().help_str() + longhelp