[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/gslib/tests/test_ls.py

+# -*- coding: utf-8 -*-
+# Copyright 2013 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for ls command."""
+
+from __future__ import absolute_import
+
+import posixpath
+import re
+import subprocess
+import sys
+
+import gslib
+from gslib.cs_api_map import ApiSelector
+import gslib.tests.testcase as testcase
+from gslib.tests.testcase.integration_testcase import SkipForS3
+from gslib.tests.util import ObjectToURI as suri
+from gslib.tests.util import unittest
+from gslib.util import IS_WINDOWS
+from gslib.util import Retry
+from gslib.util import UTF8
+
+
+class TestLs(testcase.GsUtilIntegrationTestCase):
+  """Integration tests for ls command."""
+
+  def test_blank_ls(self):
+    self.RunGsUtil(['ls'])
+
+  def test_empty_bucket(self):
+    bucket_uri = self.CreateBucket()
+    self.AssertNObjectsInBucket(bucket_uri, 0)
+
+  def test_empty_bucket_with_b(self):
+    bucket_uri = self.CreateBucket()
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-b', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertEqual('%s/\n' % suri(bucket_uri), stdout)
+    _Check1()
+
+  def test_bucket_with_Lb(self):
+    """Tests ls -Lb."""
+    bucket_uri = self.CreateBucket()
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-Lb', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn(suri(bucket_uri), stdout)
+      self.assertNotIn('TOTAL:', stdout)
+    _Check1()
+
+  def test_bucket_with_lb(self):
+    """Tests ls -lb."""
+    bucket_uri = self.CreateBucket()
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-lb', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn(suri(bucket_uri), stdout)
+      self.assertNotIn('TOTAL:', stdout)
+    _Check1()
+
+  def test_bucket_list_wildcard(self):
+    """Tests listing multiple buckets with a wildcard."""
+    random_prefix = self.MakeRandomTestString()
+    bucket1_name = self.MakeTempName('bucket', prefix=random_prefix)
+    bucket2_name = self.MakeTempName('bucket', prefix=random_prefix)
+    bucket1_uri = self.CreateBucket(bucket_name=bucket1_name)
+    bucket2_uri = self.CreateBucket(bucket_name=bucket2_name)
+    # This just double checks that the common prefix of the two buckets is what
+    # we think it should be (based on implementation detail of CreateBucket).
+    # We want to be careful when setting a wildcard on buckets to make sure we
+    # don't step outside the test buckets to affect other buckets.
+    common_prefix = posixpath.commonprefix([suri(bucket1_uri),
+                                            suri(bucket2_uri)])
+    self.assertTrue(common_prefix.startswith(
+        '%s://%sgsutil-test-test_bucket_list_wildcard-bucket-' %
+        (self.default_provider, random_prefix)))
+    wildcard = '%s*' % common_prefix
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-b', wildcard], return_stdout=True)
+      expected = set([suri(bucket1_uri) + '/', suri(bucket2_uri) + '/'])
+      actual = set(stdout.split())
+      self.assertEqual(expected, actual)
+    _Check1()
+
+  def test_nonexistent_bucket_with_ls(self):
+    """Tests a bucket that is known not to exist."""
+    stderr = self.RunGsUtil(
+        ['ls', '-lb', 'gs://%s' % self.nonexistent_bucket_name],
+        return_stderr=True, expected_status=1)
+    self.assertIn('404', stderr)
+
+    stderr = self.RunGsUtil(
+        ['ls', '-Lb', 'gs://%s' % self.nonexistent_bucket_name],
+        return_stderr=True, expected_status=1)
+    self.assertIn('404', stderr)
+
+    stderr = self.RunGsUtil(
+        ['ls', '-b', 'gs://%s' % self.nonexistent_bucket_name],
+        return_stderr=True, expected_status=1)
+    self.assertIn('404', stderr)
+
+  def test_list_missing_object(self):
+    """Tests listing a non-existent object."""
+    bucket_uri = self.CreateBucket()
+    stderr = self.RunGsUtil(['ls', suri(bucket_uri, 'missing')],
+                            return_stderr=True, expected_status=1)
+    self.assertIn('matched no objects', stderr)
+
+  def test_with_one_object(self):
+    bucket_uri = self.CreateBucket()
+    obj_uri = self.CreateObject(bucket_uri=bucket_uri, contents='foo')
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', suri(bucket_uri)], return_stdout=True)
+      self.assertEqual('%s\n' % obj_uri, stdout)
+    _Check1()
+
+  def test_subdir(self):
+    """Tests listing a bucket subdirectory."""
+    bucket_uri = self.CreateBucket(test_objects=1)
+    k1_uri = bucket_uri.clone_replace_name('foo')
+    k1_uri.set_contents_from_string('baz')
+    k2_uri = bucket_uri.clone_replace_name('dir/foo')
+    k2_uri.set_contents_from_string('bar')
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '%s/dir' % suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertEqual('%s\n' % suri(k2_uri), stdout)
+      stdout = self.RunGsUtil(['ls', suri(k1_uri)], return_stdout=True)
+      self.assertEqual('%s\n' % suri(k1_uri), stdout)
+    _Check1()
+
+  def test_versioning(self):
+    """Tests listing a versioned bucket."""
+    bucket1_uri = self.CreateBucket(test_objects=1)
+    bucket2_uri = self.CreateVersionedBucket(test_objects=1)
+    self.AssertNObjectsInBucket(bucket1_uri, 1, versioned=True)
+    bucket_list = list(bucket1_uri.list_bucket())
+
+    objuri = [bucket1_uri.clone_replace_key(key).versionless_uri
+              for key in bucket_list][0]
+    self.RunGsUtil(['cp', objuri, suri(bucket2_uri)])
+    self.RunGsUtil(['cp', objuri, suri(bucket2_uri)])
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check2():
+      stdout = self.RunGsUtil(['ls', '-a', suri(bucket2_uri)],
+                              return_stdout=True)
+      self.assertNumLines(stdout, 3)
+      stdout = self.RunGsUtil(['ls', '-la', suri(bucket2_uri)],
+                              return_stdout=True)
+      self.assertIn('%s#' % bucket2_uri.clone_replace_name(bucket_list[0].name),
+                    stdout)
+      self.assertIn('metageneration=', stdout)
+    _Check2()
+
+  def test_etag(self):
+    """Tests that listing an object with an etag."""
+    bucket_uri = self.CreateBucket()
+    obj_uri = self.CreateObject(bucket_uri=bucket_uri, contents='foo')
+    # TODO: When testcase setup can use JSON, match against the exact JSON
+    # etag.
+    etag = obj_uri.get_key().etag.strip('"\'')
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-l', suri(bucket_uri)],
+                              return_stdout=True)
+      if self.test_api == ApiSelector.XML:
+        self.assertNotIn(etag, stdout)
+      else:
+        self.assertNotIn('etag=', stdout)
+    _Check1()
+
+    def _Check2():
+      stdout = self.RunGsUtil(['ls', '-le', suri(bucket_uri)],
+                              return_stdout=True)
+      if self.test_api == ApiSelector.XML:
+        self.assertIn(etag, stdout)
+      else:
+        self.assertIn('etag=', stdout)
+    _Check2()
+
+    def _Check3():
+      stdout = self.RunGsUtil(['ls', '-ale', suri(bucket_uri)],
+                              return_stdout=True)
+      if self.test_api == ApiSelector.XML:
+        self.assertIn(etag, stdout)
+      else:
+        self.assertIn('etag=', stdout)
+    _Check3()
+
+  @SkipForS3('S3 bucket configuration values are not supported via ls.')
+  def test_location(self):
+    """Tests listing a bucket with location constraint."""
+    bucket_uri = self.CreateBucket()
+    bucket_suri = suri(bucket_uri)
+
+    # No location info
+    stdout = self.RunGsUtil(['ls', '-lb', bucket_suri],
+                            return_stdout=True)
+    self.assertNotIn('Location constraint', stdout)
+
+    # Default location constraint is US
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Location constraint:\t\tUS', stdout)
+
+  @SkipForS3('S3 bucket configuration values are not supported via ls.')
+  def test_logging(self):
+    """Tests listing a bucket with logging config."""
+    bucket_uri = self.CreateBucket()
+    bucket_suri = suri(bucket_uri)
+
+    # No logging info
+    stdout = self.RunGsUtil(['ls', '-lb', bucket_suri],
+                            return_stdout=True)
+    self.assertNotIn('Logging configuration', stdout)
+
+    # Logging configuration is absent by default
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Logging configuration:\t\tNone', stdout)
+
+    # Enable and check
+    self.RunGsUtil(['logging', 'set', 'on', '-b', bucket_suri,
+                    bucket_suri])
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Logging configuration:\t\tPresent', stdout)
+
+    # Disable and check
+    self.RunGsUtil(['logging', 'set', 'off', bucket_suri])
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Logging configuration:\t\tNone', stdout)
+
+  @SkipForS3('S3 bucket configuration values are not supported via ls.')
+  def test_web(self):
+    """Tests listing a bucket with website config."""
+    bucket_uri = self.CreateBucket()
+    bucket_suri = suri(bucket_uri)
+
+    # No website configuration
+    stdout = self.RunGsUtil(['ls', '-lb', bucket_suri],
+                            return_stdout=True)
+    self.assertNotIn('Website configuration', stdout)
+
+    # Website configuration is absent by default
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Website configuration:\t\tNone', stdout)
+
+    # Initialize and check
+    self.RunGsUtil(['web', 'set', '-m', 'google.com', bucket_suri])
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Website configuration:\t\tPresent', stdout)
+
+    # Clear and check
+    self.RunGsUtil(['web', 'set', bucket_suri])
+    stdout = self.RunGsUtil(['ls', '-Lb', bucket_suri],
+                            return_stdout=True)
+    self.assertIn('Website configuration:\t\tNone', stdout)
+
+  def test_list_sizes(self):
+    """Tests various size listing options."""
+    bucket_uri = self.CreateBucket()
+    self.CreateObject(bucket_uri=bucket_uri, contents='x' * 2048)
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-l', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn('2048', stdout)
+    _Check1()
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check2():
+      stdout = self.RunGsUtil(['ls', '-L', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn('2048', stdout)
+    _Check2()
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check3():
+      stdout = self.RunGsUtil(['ls', '-al', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn('2048', stdout)
+    _Check3()
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check4():
+      stdout = self.RunGsUtil(['ls', '-lh', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn('2 KiB', stdout)
+    _Check4()
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check5():
+      stdout = self.RunGsUtil(['ls', '-alh', suri(bucket_uri)],
+                              return_stdout=True)
+      self.assertIn('2 KiB', stdout)
+    _Check5()
+
+  @unittest.skipIf(IS_WINDOWS,
+                   'Unicode handling on Windows requires mods to site-packages')
+  def test_list_unicode_filename(self):
+    """Tests listing an object with a unicode filename."""
+    # Note: This test fails on Windows (command.exe). I was able to get ls to
+    # output Unicode filenames correctly by hacking the UniStream class code
+    # shown at
+    # http://stackoverflow.com/questions/878972/windows-cmd-encoding-change-causes-python-crash/3259271
+    # into the start of gslib/commands/ls.py, along with no-op flush and
+    # isastream functions (as an experiment).  However, even with that change,
+    # the current test still fails, since it also needs to run that
+    # stdout/stderr-replacement code. That UniStream class replacement really
+    # needs to be added to the site-packages on Windows python.
+    object_name = u'Аудиоархив'
+    object_name_bytes = object_name.encode(UTF8)
+    bucket_uri = self.CreateVersionedBucket()
+    key_uri = self.CreateObject(bucket_uri=bucket_uri, contents='foo',
+                                object_name=object_name)
+    self.AssertNObjectsInBucket(bucket_uri, 1, versioned=True)
+    stdout = self.RunGsUtil(['ls', '-ael', suri(key_uri)],
+                            return_stdout=True)
+    self.assertIn(object_name_bytes, stdout)
+    if self.default_provider == 'gs':
+      self.assertIn(str(key_uri.generation), stdout)
+      self.assertIn(
+          'metageneration=%s' % key_uri.get_key().metageneration, stdout)
+      if self.test_api == ApiSelector.XML:
+        self.assertIn(key_uri.get_key().etag.strip('"\''), stdout)
+      else:
+        # TODO: When testcase setup can use JSON, match against the exact JSON
+        # etag.
+        self.assertIn('etag=', stdout)
+    elif self.default_provider == 's3':
+      self.assertIn(key_uri.version_id, stdout)
+      self.assertIn(key_uri.get_key().etag.strip('"\''), stdout)
+
+  def test_list_gzip_content_length(self):
+    """Tests listing a gzipped object."""
+    file_size = 10000
+    file_contents = 'x' * file_size
+    fpath = self.CreateTempFile(contents=file_contents, file_name='foo.txt')
+    key_uri = self.CreateObject()
+    self.RunGsUtil(['cp', '-z', 'txt', suri(fpath), suri(key_uri)])
+
+    # Use @Retry as hedge against bucket listing eventual consistency.
+    @Retry(AssertionError, tries=3, timeout_secs=1)
+    def _Check1():
+      stdout = self.RunGsUtil(['ls', '-L', suri(key_uri)], return_stdout=True)
+      self.assertRegexpMatches(stdout, r'Content-Encoding:\s+gzip')
+      find_content_length_re = r'Content-Length:\s+(?P<num>\d)'
+      self.assertRegexpMatches(stdout, find_content_length_re)
+      m = re.search(find_content_length_re, stdout)
+      content_length = int(m.group('num'))
+      self.assertGreater(content_length, 0)
+      self.assertLess(content_length, file_size)
+    _Check1()
+
+  def test_output_chopped(self):
+    """Tests that gsutil still succeeds with a truncated stdout."""
+    bucket_uri = self.CreateBucket(test_objects=2)
+
+    # Run Python with the -u flag so output is not buffered.
+    gsutil_cmd = [
+        sys.executable, '-u', gslib.GSUTIL_PATH, 'ls', suri(bucket_uri)]
+    # Set bufsize to 0 to make sure output is not buffered.
+    p = subprocess.Popen(gsutil_cmd, stdout=subprocess.PIPE, bufsize=0)
+    # Immediately close the stdout pipe so that gsutil gets a broken pipe error.
+    p.stdout.close()
+    p.wait()
+    # Make sure it still exited cleanly.
+    self.assertEqual(p.returncode, 0)
+
+  def test_recursive_list_trailing_slash(self):
+    """Tests listing an object with a trailing slash."""
+    bucket_uri = self.CreateBucket()
+    self.CreateObject(bucket_uri=bucket_uri, object_name='/', contents='foo')
+    self.AssertNObjectsInBucket(bucket_uri, 1)
+    stdout = self.RunGsUtil(['ls', '-R', suri(bucket_uri)], return_stdout=True)
+    # Note: The suri function normalizes the URI, so the double slash gets
+    # removed.
+    self.assertIn(suri(bucket_uri) + '/', stdout)
+
+  def test_recursive_list_trailing_two_slash(self):
+    """Tests listing an object with two trailing slashes."""
+    bucket_uri = self.CreateBucket()
+    self.CreateObject(bucket_uri=bucket_uri, object_name='//', contents='foo')
+    self.AssertNObjectsInBucket(bucket_uri, 1)
+    stdout = self.RunGsUtil(['ls', '-R', suri(bucket_uri)], return_stdout=True)
+    # Note: The suri function normalizes the URI, so the double slash gets
+    # removed.
+    self.assertIn(suri(bucket_uri) + '//', stdout)
+
+  @SkipForS3('S3 anonymous access is not supported.')
+  def test_get_object_without_list_bucket_permission(self):
+    # Bucket is not publicly readable by default.
+    bucket_uri = self.CreateBucket()
+    object_uri = self.CreateObject(bucket_uri=bucket_uri,
+                                   object_name='permitted', contents='foo')
+    # Set this object to be publicly readable.
+    self.RunGsUtil(['acl', 'set', 'public-read', suri(object_uri)])
+    # Drop credentials.
+    with self.SetAnonymousBotoCreds():
+      stdout = self.RunGsUtil(['ls', '-L', suri(object_uri)],
+                              return_stdout=True)
+      self.assertIn(suri(object_uri), stdout)