~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

"""Tests for bzrlib.export."""

from cStringIO import StringIO

import os

import tarfile

import time

import zipfile

from bzrlib import (

    errors,

    export,

    tests,

    )

from bzrlib.export import get_root_name

from bzrlib.export.tar_exporter import export_tarball_generator

from bzrlib.tests import features

class TestDirExport(tests.TestCaseWithTransport):

    def test_missing_file(self):

        self.build_tree(['a/', 'a/b', 'a/c'])

        wt = self.make_branch_and_tree('.')

        wt.add(['a', 'a/b', 'a/c'])

        os.unlink('a/c')

        export.export(wt, 'target', format="dir")

        self.assertPathExists('target/a/b')

        self.assertPathDoesNotExist('target/a/c')

    def test_empty(self):

        wt = self.make_branch_and_tree('.')

        export.export(wt, 'target', format="dir")

        self.assertEquals([], os.listdir("target"))

    def test_symlink(self):

        self.requireFeature(features.SymlinkFeature)

        wt = self.make_branch_and_tree('.')

        os.symlink('source', 'link')

        wt.add(['link'])

        export.export(wt, 'target', format="dir")

        self.assertPathExists('target/link')

    def test_to_existing_empty_dir_success(self):

        self.build_tree(['source/', 'source/a', 'source/b/', 'source/b/c'])

        wt = self.make_branch_and_tree('source')

        wt.add(['a', 'b', 'b/c'])

        wt.commit('1')

        self.build_tree(['target/'])

        export.export(wt, 'target', format="dir")

        self.assertPathExists('target/a')

        self.assertPathExists('target/b')

        self.assertPathExists('target/b/c')

    def test_empty_subdir(self):

        self.build_tree(['source/', 'source/a', 'source/b/', 'source/b/c'])

        wt = self.make_branch_and_tree('source')

        wt.add(['a', 'b', 'b/c'])

        wt.commit('1')

        self.build_tree(['target/'])

        export.export(wt, 'target', format="dir", subdir='')

        self.assertPathExists('target/a')

        self.assertPathExists('target/b')

        self.assertPathExists('target/b/c')

    def test_to_existing_nonempty_dir_fail(self):

        self.build_tree(['source/', 'source/a', 'source/b/', 'source/b/c'])

        wt = self.make_branch_and_tree('source')

        wt.add(['a', 'b', 'b/c'])

        wt.commit('1')

        self.build_tree(['target/', 'target/foo'])

        self.assertRaises(errors.BzrError,

            export.export, wt, 'target', format="dir")

    def test_existing_single_file(self):

        self.build_tree([

            'dir1/', 'dir1/dir2/', 'dir1/first', 'dir1/dir2/second'])

        wtree = self.make_branch_and_tree('dir1')

        wtree.add(['dir2', 'first', 'dir2/second'])

        wtree.commit('1')

        export.export(wtree, 'target1', format='dir', subdir='first')

        self.assertPathExists('target1/first')

        export.export(wtree, 'target2', format='dir', subdir='dir2/second')

        self.assertPathExists('target2/second')

    def test_files_same_timestamp(self):

        builder = self.make_branch_builder('source')

        builder.start_series()

        builder.build_snapshot(None, None, [

            ('add', ('', 'root-id', 'directory', '')),

            ('add', ('a', 'a-id', 'file', 'content\n'))])

        builder.build_snapshot(None, None, [

            ('add', ('b', 'b-id', 'file', 'content\n'))])

        builder.finish_series()

        b = builder.get_branch()

        b.lock_read()

        self.addCleanup(b.unlock)

        tree = b.basis_tree()

        orig_iter_files_bytes = tree.iter_files_bytes

        # Make iter_files_bytes slower, so we provoke mtime skew

        def iter_files_bytes(to_fetch):

            for thing in orig_iter_files_bytes(to_fetch):

                yield thing

                time.sleep(1)

        tree.iter_files_bytes = iter_files_bytes

        export.export(tree, 'target', format='dir')

        t = self.get_transport('target')

        st_a = t.stat('a')

        st_b = t.stat('b')

        # All files must be given the same mtime.

        self.assertEqual(st_a.st_mtime, st_b.st_mtime)

    def test_files_per_file_timestamps(self):

        builder = self.make_branch_builder('source')

        builder.start_series()

        # Earliest allowable date on FAT32 filesystems is 1980-01-01

        a_time = time.mktime((1999, 12, 12, 0, 0, 0, 0, 0, 0))

        b_time = time.mktime((1980, 01, 01, 0, 0, 0, 0, 0, 0))

        builder.build_snapshot(None, None, [

            ('add', ('', 'root-id', 'directory', '')),

            ('add', ('a', 'a-id', 'file', 'content\n'))],

            timestamp=a_time)

        builder.build_snapshot(None, None, [

            ('add', ('b', 'b-id', 'file', 'content\n'))],

            timestamp=b_time)

        builder.finish_series()

        b = builder.get_branch()

        b.lock_read()

        self.addCleanup(b.unlock)

        tree = b.basis_tree()

        export.export(tree, 'target', format='dir', per_file_timestamps=True)

        t = self.get_transport('target')

        self.assertEqual(a_time, t.stat('a').st_mtime)

        self.assertEqual(b_time, t.stat('b').st_mtime)

    def test_subdir_files_per_timestamps(self):

        builder = self.make_branch_builder('source')

        builder.start_series()

        foo_time = time.mktime((1999, 12, 12, 0, 0, 0, 0, 0, 0))

        builder.build_snapshot(None, None, [

            ('add', ('', 'root-id', 'directory', '')),

            ('add', ('subdir', 'subdir-id', 'directory', '')),

            ('add', ('subdir/foo.txt', 'foo-id', 'file', 'content\n'))],

            timestamp=foo_time)

        builder.finish_series()

        b = builder.get_branch()

        b.lock_read()

        self.addCleanup(b.unlock)

        tree = b.basis_tree()

        export.export(tree, 'target', format='dir', subdir='subdir',

            per_file_timestamps=True)

        t = self.get_transport('target')

        self.assertEquals(foo_time, t.stat('foo.txt').st_mtime)

class TarExporterTests(tests.TestCaseWithTransport):

    def test_xz(self):

        self.requireFeature(features.lzma)

        import lzma

        wt = self.make_branch_and_tree('.')

        self.build_tree(['a'])

        wt.add(["a"])

        wt.commit("1")

        export.export(wt, 'target.tar.xz', format="txz")

        tf = tarfile.open(fileobj=lzma.LZMAFile('target.tar.xz'))

        self.assertEquals(["target/a"], tf.getnames())

    def test_lzma(self):

        self.requireFeature(features.lzma)

        import lzma

        wt = self.make_branch_and_tree('.')

        self.build_tree(['a'])

        wt.add(["a"])

        wt.commit("1")

        export.export(wt, 'target.tar.lzma', format="tlzma")

        tf = tarfile.open(fileobj=lzma.LZMAFile('target.tar.lzma'))

        self.assertEquals(["target/a"], tf.getnames())

    def test_tgz(self):

        wt = self.make_branch_and_tree('.')

        self.build_tree(['a'])

        wt.add(["a"])

        wt.commit("1")

        export.export(wt, 'target.tar.gz', format="tgz")

        tf = tarfile.open('target.tar.gz')

        self.assertEquals(["target/a"], tf.getnames())

    def test_tgz_ignores_dest_path(self):

        # The target path should not be a part of the target file.

        # (bug #102234)

        wt = self.make_branch_and_tree('.')

        self.build_tree(['a'])

        wt.add(["a"])

        wt.commit("1")

        os.mkdir("testdir1")

        os.mkdir("testdir2")

        export.export(wt, 'testdir1/target.tar.gz', format="tgz",

            per_file_timestamps=True)

        export.export(wt, 'testdir2/target.tar.gz', format="tgz",

            per_file_timestamps=True)

        file1 = open('testdir1/target.tar.gz', 'r')

        self.addCleanup(file1.close)

        file2 = open('testdir1/target.tar.gz', 'r')

        self.addCleanup(file2.close)

        content1 = file1.read()

        content2 = file2.read()

        self.assertEqualDiff(content1, content2)

        # the gzip module doesn't have a way to read back to the original

        # filename, but it's stored as-is in the tarfile.

        self.assertFalse("testdir1" in content1)

        self.assertFalse("target.tar.gz" in content1)

        self.assertTrue("target.tar" in content1)

    def test_tbz2(self):

        wt = self.make_branch_and_tree('.')

        self.build_tree(['a'])

        wt.add(["a"])

        wt.commit("1")

        export.export(wt, 'target.tar.bz2', format="tbz2")

        tf = tarfile.open('target.tar.bz2')

        self.assertEquals(["target/a"], tf.getnames())

    def test_xz_stdout(self):

        wt = self.make_branch_and_tree('.')

        self.assertRaises(errors.BzrError, export.export, wt, '-',

            format="txz")

    def test_export_tarball_generator(self):

        wt = self.make_branch_and_tree('.')

        self.build_tree(['a'])

        wt.add(["a"])

        wt.commit("1", timestamp=42)

        target = StringIO()

        ball = tarfile.open(None, "w|", target)

        wt.lock_read()

        try:

            for _ in export_tarball_generator(wt, ball, "bar"):

                pass

        finally:

            wt.unlock()

        # Ball should now be closed.

        target.seek(0)

        ball2 = tarfile.open(None, "r", target)

        self.addCleanup(ball2.close)

        self.assertEquals(["bar/a"], ball2.getnames())

class ZipExporterTests(tests.TestCaseWithTransport):

    def test_per_file_timestamps(self):

        tree = self.make_branch_and_tree('.')

        self.build_tree_contents([('har', 'foo')])

        tree.add('har')

        # Earliest allowable date on FAT32 filesystems is 1980-01-01

        timestamp = 347151600

        tree.commit('setup', timestamp=timestamp)

        export.export(tree.basis_tree(), 'test.zip', format='zip',

            per_file_timestamps=True)

        zfile = zipfile.ZipFile('test.zip')

        info = zfile.getinfo("test/har")

        self.assertEquals(time.localtime(timestamp)[:6], info.date_time)

class RootNameTests(tests.TestCase):

    def test_root_name(self):

        self.assertEquals('mytest', get_root_name('../mytest.tar'))

        self.assertEquals('mytar', get_root_name('mytar.tar'))

        self.assertEquals('mytar', get_root_name('mytar.tar.bz2'))

        self.assertEquals('tar.tar.tar', get_root_name('tar.tar.tar.tgz'))

        self.assertEquals('bzr-0.0.5', get_root_name('bzr-0.0.5.tar.gz'))

        self.assertEquals('bzr-0.0.5', get_root_name('bzr-0.0.5.zip'))

        self.assertEquals('bzr-0.0.5', get_root_name('bzr-0.0.5'))

        self.assertEquals('mytar', get_root_name('a/long/path/mytar.tgz'))

        self.assertEquals('other',

            get_root_name('../parent/../dir/other.tbz2'))

        self.assertEquals('', get_root_name('-'))