~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2009, 2010 Canonical Ltd

#

# 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

import errno

import os

import shutil

from StringIO import StringIO

import sys

import types

from bzrlib import tests, ui

from bzrlib.bzrdir import (

    BzrDir,

    )

from bzrlib.clean_tree import (

    clean_tree,

    iter_deletables,

    )

from bzrlib.osutils import (

    has_symlinks,

    )

from bzrlib.tests import (

    TestCaseInTempDir,

    )

class TestCleanTree(TestCaseInTempDir):

    def test_symlinks(self):

        if has_symlinks() is False:

            return

        os.mkdir('branch')

        BzrDir.create_standalone_workingtree('branch')

        os.symlink(os.path.realpath('no-die-please'), 'branch/die-please')

        os.mkdir('no-die-please')

        self.failUnlessExists('branch/die-please')

        os.mkdir('no-die-please/child')

        clean_tree('branch', unknown=True, no_prompt=True)

        self.failUnlessExists('no-die-please')

        self.failUnlessExists('no-die-please/child')

    def test_iter_deletable(self):

        """Files are selected for deletion appropriately"""

        os.mkdir('branch')

        tree = BzrDir.create_standalone_workingtree('branch')

        transport = tree.bzrdir.root_transport

        transport.put_bytes('.bzrignore', '*~\n*.pyc\n.bzrignore\n')

        transport.put_bytes('file.BASE', 'contents')

        tree.lock_write()

        try:

            self.assertEqual(len(list(iter_deletables(tree, unknown=True))), 1)

            transport.put_bytes('file', 'contents')

            transport.put_bytes('file~', 'contents')

            transport.put_bytes('file.pyc', 'contents')

            dels = sorted([r for a,r in iter_deletables(tree, unknown=True)])

            self.assertEqual(['file', 'file.BASE'], dels)

            dels = [r for a,r in iter_deletables(tree, detritus=True)]

            self.assertEqual(sorted(['file~', 'file.BASE']), dels)

            dels = [r for a,r in iter_deletables(tree, ignored=True)]

            self.assertEqual(sorted(['file~', 'file.pyc', '.bzrignore']),

                             dels)

            dels = [r for a,r in iter_deletables(tree, unknown=False)]

            self.assertEqual([], dels)

        finally:

            tree.unlock()

    def test_delete_items_warnings(self):

        """Ensure delete_items issues warnings on EACCES. (bug #430785)

        """

        def _dummy_unlink(path):

            """unlink() files other than files named '0foo'.

            """

            if path.endswith('0foo'):

                # Simulate 'permission denied' error.

                # This should show up as a warning for the

                # user.

                e = OSError()

                e.errno = errno.EACCES

                raise e

        def _dummy_rmtree(path, ignore_errors=False, onerror=None):

            """Call user supplied error handler onerror.

            """

            self.assertTrue(isinstance(onerror, types.FunctionType))

            # Indicate failure in removing 'path' if path is subdir0

            # We later check to ensure that this is indicated

            # to the user as a warning. We raise OSError to construct

            # proper excinfo that needs to be passed to onerror

            try:

                raise OSError

            except OSError, e:

                e.errno = errno.EACCES

                excinfo = sys.exc_info()

                function = os.remove

                if 'subdir0' not in path:

                    # onerror should show warning only for os.remove

                    # error. For any other failures the error should

                    # be shown to the user.

                    function = os.listdir

                onerror(function=function,

                    path=path, excinfo=excinfo)

        self.overrideAttr(os, 'unlink', _dummy_unlink)

        self.overrideAttr(shutil, 'rmtree', _dummy_rmtree)

        stdout = tests.StringIOWrapper()

        stderr = tests.StringIOWrapper()

        ui.ui_factory = tests.TestUIFactory(stdout=stdout, stderr=stderr)

        BzrDir.create_standalone_workingtree('.')

        self.build_tree(['0foo', '1bar', '2baz', 'subdir0/'])

        clean_tree('.', unknown=True, no_prompt=True)

        self.assertContainsRe(stderr.getvalue(),

            'bzr: warning: unable to remove.*0foo')

        self.assertContainsRe(stderr.getvalue(),

            'bzr: warning: unable to remove.*subdir0')

        # Ensure that error other than EACCES during os.remove are

        # not turned into warnings.

        self.build_tree(['subdir1/'])

        self.assertRaises(OSError, clean_tree, '.',

            unknown=True, no_prompt=True)