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Viewing changes to bzrlib/clean_tree.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-04-23 13:47:32 UTC
  • mfrom: (5179.1.1 integration2)
  • Revision ID: pqm@pqm.ubuntu.com-20100423134732-e01c947fwuvjwtl2
(vila, for gz) Use signal only where available

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bzrlib/clean_tree.py
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# Copyright (C) 2009, 2010 Canonical Ltd
 
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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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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 import (
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    bzrdir,
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    errors,
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    ui,
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    )
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from bzrlib.osutils import isdir
 
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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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    try:
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        deletables = list(iter_deletables(tree, unknown=unknown,
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            ignored=ignored, detritus=detritus))
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        deletables = _filter_out_nested_bzrdirs(deletables)
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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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                # FIXME using print is very bad idea
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                # clean_tree should accept to_file argument to write the output
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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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        tree.unlock()
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def _filter_out_nested_bzrdirs(deletables):
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    result = []
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    for path, subp in deletables:
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        # bzr won't recurse into unknowns/ignored directories by default
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        # so we don't pay a penalty for checking subdirs of path for nested
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        # bzrdir.
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        # That said we won't detect the branch in the subdir of non-branch
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        # directory and therefore delete it. (worth to FIXME?)
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        if isdir(path):
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            try:
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                bzrdir.BzrDir.open(path)
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            except errors.NotBranchError:
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                result.append((path,subp))
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            else:
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                # TODO may be we need to notify user about skipped directories?
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                pass
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        else:
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            result.append((path,subp))
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    return result
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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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    def onerror(function, path, excinfo):
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        """Show warning for errors seen by rmtree.
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        """
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        # Handle only permission error while removing files.
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        # Other errors are re-raised.
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        if function is not os.remove or excinfo[1].errno != errno.EACCES:
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            raise
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        ui.ui_factory.show_warning('unable to remove %s' % path)
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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, onerror=onerror)
 
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                shutil.rmtree(path)
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            else:
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                try:
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                    os.unlink(path)
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                    note('  ' + subp)
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                except OSError, e:
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                    # We handle only permission error here
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                    if e.errno != errno.EACCES:
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                        raise e
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                    ui.ui_factory.show_warning(
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                        'unable to remove "%s": %s.' % (path, e.strerror))
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        else:
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            note('  ' + subp)
 
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                os.unlink(path)
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    if not has_deleted:
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        note("No files deleted.")