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  • Committer: Robert Collins
  • Date: 2009-07-07 04:32:13 UTC
  • mto: This revision was merged to the branch mainline in revision 4524.
  • Revision ID: robertc@robertcollins.net-20090707043213-4hjjhgr40iq7gk2d
More informative assertions in xml serialisation.

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bzrlib/clean_tree.py
 
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# Copyright (C) 2005 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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import errno
 
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import os
 
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import shutil
 
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import sys
 
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from bzrlib.osutils import has_symlinks, isdir
 
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from bzrlib.trace import note
 
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from bzrlib.workingtree import WorkingTree
 
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def is_detritus(subp):
 
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    """Return True if the supplied path is detritus, False otherwise"""
 
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    return subp.endswith('.THIS') or subp.endswith('.BASE') or\
 
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        subp.endswith('.OTHER') or subp.endswith('~') or subp.endswith('.tmp')
 
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def iter_deletables(tree, unknown=False, ignored=False, detritus=False):
 
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    """Iterate through files that may be deleted"""
 
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    for subp in tree.extras():
 
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        if detritus and is_detritus(subp):
 
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            yield tree.abspath(subp), subp
 
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            continue
 
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        if tree.is_ignored(subp):
 
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            if ignored:
 
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                yield tree.abspath(subp), subp
 
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        else:
 
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            if unknown:
 
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                yield tree.abspath(subp), subp
 
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def clean_tree(directory, unknown=False, ignored=False, detritus=False,
 
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               dry_run=False, no_prompt=False):
 
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    """Remove files in the specified classes from the tree"""
 
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    tree = WorkingTree.open_containing(directory)[0]
 
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    tree.lock_read()
 
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    try:
 
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        deletables = list(iter_deletables(tree, unknown=unknown,
 
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            ignored=ignored, detritus=detritus))
 
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        if len(deletables) == 0:
 
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            note('Nothing to delete.')
 
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            return 0
 
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        if not no_prompt:
 
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            for path, subp in deletables:
 
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                print subp
 
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            val = raw_input('Are you sure you wish to delete these [y/N]?')
 
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            if val.lower() not in ('y', 'yes'):
 
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                print 'Canceled'
 
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                return 0
 
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        delete_items(deletables, dry_run=dry_run)
 
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    finally:
 
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        tree.unlock()
 
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def delete_items(deletables, dry_run=False):
 
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    """Delete files in the deletables iterable"""
 
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    has_deleted = False
 
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    for path, subp in deletables:
 
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        if not has_deleted:
 
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            note("deleting paths:")
 
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            has_deleted = True
 
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        note('  ' + subp)
 
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        if not dry_run:
 
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            if isdir(path):
 
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                shutil.rmtree(path)
 
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            else:
 
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                os.unlink(path)
 
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    if not has_deleted:
 
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        note("No files deleted.")