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"""Tests for distutils.archive_util."""
import unittest
import os
import tarfile
from os.path import splitdrive
import warnings
from distutils import archive_util
from distutils.archive_util import (check_archive_formats, make_tarball,
make_zipfile, make_archive,
ARCHIVE_FORMATS)
from distutils.spawn import find_executable, spawn
from distutils.tests import support
from test.support import check_warnings, run_unittest, patch
try:
import zipfile
ZIP_SUPPORT = True
except ImportError:
ZIP_SUPPORT = find_executable('zip')
try:
import zlib
ZLIB_SUPPORT = True
except ImportError:
ZLIB_SUPPORT = False
class ArchiveUtilTestCase(support.TempdirManager,
support.LoggingSilencer,
unittest.TestCase):
@unittest.skipUnless(ZLIB_SUPPORT, 'Need zlib support to run')
def test_make_tarball(self):
# creating something to tar
tmpdir = self.mkdtemp()
self.write_file([tmpdir, 'file1'], 'xxx')
self.write_file([tmpdir, 'file2'], 'xxx')
os.mkdir(os.path.join(tmpdir, 'sub'))
self.write_file([tmpdir, 'sub', 'file3'], 'xxx')
tmpdir2 = self.mkdtemp()
unittest.skipUnless(splitdrive(tmpdir)[0] == splitdrive(tmpdir2)[0],
"Source and target should be on same drive")
base_name = os.path.join(tmpdir2, 'archive')
# working with relative paths to avoid tar warnings
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
make_tarball(splitdrive(base_name)[1], '.')
finally:
os.chdir(old_dir)
# check if the compressed tarball was created
tarball = base_name + '.tar.gz'
self.assertTrue(os.path.exists(tarball))
# trying an uncompressed one
base_name = os.path.join(tmpdir2, 'archive')
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
make_tarball(splitdrive(base_name)[1], '.', compress=None)
finally:
os.chdir(old_dir)
tarball = base_name + '.tar'
self.assertTrue(os.path.exists(tarball))
def _tarinfo(self, path):
tar = tarfile.open(path)
try:
names = tar.getnames()
names.sort()
return tuple(names)
finally:
tar.close()
def _create_files(self):
# creating something to tar
tmpdir = self.mkdtemp()
dist = os.path.join(tmpdir, 'dist')
os.mkdir(dist)
self.write_file([dist, 'file1'], 'xxx')
self.write_file([dist, 'file2'], 'xxx')
os.mkdir(os.path.join(dist, 'sub'))
self.write_file([dist, 'sub', 'file3'], 'xxx')
os.mkdir(os.path.join(dist, 'sub2'))
tmpdir2 = self.mkdtemp()
base_name = os.path.join(tmpdir2, 'archive')
return tmpdir, tmpdir2, base_name
@unittest.skipUnless(find_executable('tar') and find_executable('gzip')
and ZLIB_SUPPORT,
'Need the tar, gzip and zlib command to run')
def test_tarfile_vs_tar(self):
tmpdir, tmpdir2, base_name = self._create_files()
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
make_tarball(base_name, 'dist')
finally:
os.chdir(old_dir)
# check if the compressed tarball was created
tarball = base_name + '.tar.gz'
self.assertTrue(os.path.exists(tarball))
# now create another tarball using `tar`
tarball2 = os.path.join(tmpdir, 'archive2.tar.gz')
tar_cmd = ['tar', '-cf', 'archive2.tar', 'dist']
gzip_cmd = ['gzip', '-f9', 'archive2.tar']
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
spawn(tar_cmd)
spawn(gzip_cmd)
finally:
os.chdir(old_dir)
self.assertTrue(os.path.exists(tarball2))
# let's compare both tarballs
self.assertEqual(self._tarinfo(tarball), self._tarinfo(tarball2))
# trying an uncompressed one
base_name = os.path.join(tmpdir2, 'archive')
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
make_tarball(base_name, 'dist', compress=None)
finally:
os.chdir(old_dir)
tarball = base_name + '.tar'
self.assertTrue(os.path.exists(tarball))
# now for a dry_run
base_name = os.path.join(tmpdir2, 'archive')
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
make_tarball(base_name, 'dist', compress=None, dry_run=True)
finally:
os.chdir(old_dir)
tarball = base_name + '.tar'
self.assertTrue(os.path.exists(tarball))
@unittest.skipUnless(find_executable('compress'),
'The compress program is required')
def test_compress_deprecated(self):
tmpdir, tmpdir2, base_name = self._create_files()
# using compress and testing the PendingDeprecationWarning
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
with check_warnings() as w:
warnings.simplefilter("always")
make_tarball(base_name, 'dist', compress='compress')
finally:
os.chdir(old_dir)
tarball = base_name + '.tar.Z'
self.assertTrue(os.path.exists(tarball))
self.assertEqual(len(w.warnings), 1)
# same test with dry_run
os.remove(tarball)
old_dir = os.getcwd()
os.chdir(tmpdir)
try:
with check_warnings() as w:
warnings.simplefilter("always")
make_tarball(base_name, 'dist', compress='compress',
dry_run=True)
finally:
os.chdir(old_dir)
self.assertTrue(not os.path.exists(tarball))
self.assertEqual(len(w.warnings), 1)
@unittest.skipUnless(ZIP_SUPPORT and ZLIB_SUPPORT,
'Need zip and zlib support to run')
def test_make_zipfile(self):
# creating something to tar
tmpdir = self.mkdtemp()
self.write_file([tmpdir, 'file1'], 'xxx')
self.write_file([tmpdir, 'file2'], 'xxx')
tmpdir2 = self.mkdtemp()
base_name = os.path.join(tmpdir2, 'archive')
make_zipfile(base_name, tmpdir)
# check if the compressed tarball was created
tarball = base_name + '.zip'
self.assertTrue(os.path.exists(tarball))
@unittest.skipUnless(ZIP_SUPPORT, 'Need zip support to run')
def test_make_zipfile_no_zlib(self):
patch(self, archive_util.zipfile, 'zlib', None) # force zlib ImportError
called = []
zipfile_class = zipfile.ZipFile
def fake_zipfile(*a, **kw):
if kw.get('compression', None) == zipfile.ZIP_STORED:
called.append((a, kw))
return zipfile_class(*a, **kw)
patch(self, archive_util.zipfile, 'ZipFile', fake_zipfile)
# create something to tar and compress
tmpdir, tmpdir2, base_name = self._create_files()
make_zipfile(base_name, tmpdir)
tarball = base_name + '.zip'
self.assertEqual(called,
[((tarball, "w"), {'compression': zipfile.ZIP_STORED})])
self.assertTrue(os.path.exists(tarball))
def test_check_archive_formats(self):
self.assertEqual(check_archive_formats(['gztar', 'xxx', 'zip']),
'xxx')
self.assertEqual(check_archive_formats(['gztar', 'zip']), None)
def test_make_archive(self):
tmpdir = self.mkdtemp()
base_name = os.path.join(tmpdir, 'archive')
self.assertRaises(ValueError, make_archive, base_name, 'xxx')
def test_make_archive_cwd(self):
current_dir = os.getcwd()
def _breaks(*args, **kw):
raise RuntimeError()
ARCHIVE_FORMATS['xxx'] = (_breaks, [], 'xxx file')
try:
try:
make_archive('xxx', 'xxx', root_dir=self.mkdtemp())
except:
pass
self.assertEqual(os.getcwd(), current_dir)
finally:
del ARCHIVE_FORMATS['xxx']
def test_suite():
return unittest.makeSuite(ArchiveUtilTestCase)
if __name__ == "__main__":
run_unittest(test_suite())
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