Added gsutil/gslib to depot_tools/third_party

third_party/gsutil/gslib/commands/version.py

Index: third_party/gsutil/gslib/commands/version.py
diff --git a/third_party/gsutil/gslib/commands/version.py b/third_party/gsutil/gslib/commands/version.py
new file mode 100644
index 0000000000000000000000000000000000000000..a396372a73ea3ce2d58d2bd1c8b41b2d7e1fa94f
--- /dev/null
+++ b/third_party/gsutil/gslib/commands/version.py
@@ -0,0 +1,150 @@
+# Copyright 2011 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.
+
+import boto
+import os
+import re
+import sys
+
+from boto.pyami.config import BotoConfigLocations
+from gslib.command import Command
+from gslib.command import COMMAND_NAME
+from gslib.command import COMMAND_NAME_ALIASES
+from gslib.command import CONFIG_REQUIRED
+from gslib.command import FILE_URIS_OK
+from gslib.command import MAX_ARGS
+from gslib.command import MIN_ARGS
+from gslib.command import PROVIDER_URIS_OK
+from gslib.command import SUPPORTED_SUB_ARGS
+from gslib.command import URIS_START_ARG
+from gslib.help_provider import HELP_NAME
+from gslib.help_provider import HELP_NAME_ALIASES
+from gslib.help_provider import HELP_ONE_LINE_SUMMARY
+from gslib.help_provider import HELP_TEXT
+from gslib.help_provider import HelpType
+from gslib.help_provider import HELP_TYPE
+from hashlib import md5
+
+_detailed_help_text = ("""
+<B>SYNOPSIS</B>
+  gsutil version
+
+
+<B>DESCRIPTION</B>
+  Prints information about the version of gsutil, boto, and Python being
+  run on your system.
+""")
+
+
+class VersionCommand(Command):
+  """Implementation of gsutil version command."""
+
+  # Command specification (processed by parent class).
+  command_spec = {
+    # Name of command.
+    COMMAND_NAME : 'version',
+    # List of command name aliases.
+    COMMAND_NAME_ALIASES : ['ver'],
+    # Min number of args required by this command.
+    MIN_ARGS : 0,
+    # Max number of args required by this command, or NO_MAX.
+    MAX_ARGS : 0,
+    # Getopt-style string specifying acceptable sub args.
+    SUPPORTED_SUB_ARGS : '',
+    # True if file URIs acceptable for this command.
+    FILE_URIS_OK : False,
+    # True if provider-only URIs acceptable for this command.
+    PROVIDER_URIS_OK : False,
+    # Index in args of first URI arg.
+    URIS_START_ARG : 0,
+    # True if must configure gsutil before running command.
+    CONFIG_REQUIRED : False,
+  }
+  help_spec = {
+    # Name of command or auxiliary help info for which this help applies.
+    HELP_NAME : 'version',
+    # List of help name aliases.
+    HELP_NAME_ALIASES : ['ver'],
+    # Type of help:
+    HELP_TYPE : HelpType.COMMAND_HELP,
+    # One line summary of this help.
+    HELP_ONE_LINE_SUMMARY : 'Print version info about gsutil',
+    # The full help text.
+    HELP_TEXT : _detailed_help_text,
+  }
+
+  # Command entry point.
+  def RunCommand(self):
+    for path in BotoConfigLocations:
+      f = None
+      try:
+        f = open(path, 'r')
+        break
+      except IOError:
+        pass
+      finally:
+        if f:
+          f.close()
+        else:
+          path = "no config found"
+
+    try:
+      f = open(os.path.join(self.gsutil_bin_dir, 'CHECKSUM'))
+      shipped_checksum = f.read().strip()
+      f.close()
+    except IOError:
+      shipped_checksum = 'MISSING'
+    try:
+      cur_checksum = self._ComputeCodeChecksum()
+    except IOError:
+      cur_checksum = 'MISSING FILES'
+    if shipped_checksum == cur_checksum:
+      checksum_ok_str = 'OK'
+    else:
+      checksum_ok_str = '!= %s' % shipped_checksum
+    sys.stderr.write(
+        'gsutil version %s\nchecksum %s (%s)\n'
+        'boto version %s\npython version %s\n'
+        'config path: %s\ngsutil path: %s\n' % (
+        self.gsutil_ver, cur_checksum, checksum_ok_str,
+        boto.__version__, sys.version, path, os.path.realpath(sys.argv[0])))
+
+    return 0
+
+  def _ComputeCodeChecksum(self):
+    """
+    Computes a checksum of gsutil code so we can see if users locally modified
+    gsutil when requesting support. (It's fine for users to make local mods,
+    but when users ask for support we ask them to run a stock version of
+    gsutil so we can reduce possible variables.)
+    """
+    m = md5()
+    # Checksum gsutil and all .py files under gsutil bin (including bundled
+    # libs). Although we will eventually make gsutil allow use of a centrally
+    # installed boto (once boto shifts to more frequent releases), in that case
+    # the local copies still should not have any user modifications.
+    files_to_checksum = [os.path.join(self.gsutil_bin_dir, 'gsutil')]
+    for root, sub_folders, files in os.walk(self.gsutil_bin_dir):
+      for file in files:
+        if file[-3:] == '.py':
+          files_to_checksum.append(os.path.join(root, file))
+    # Sort to ensure consistent checksum build, no matter how os.walk
+    # orders the list.
+    for file in sorted(files_to_checksum):
+      f = open(file, 'r')
+      content = f.read()
+      content = re.sub(r'(\r\n|\r|\n)', '\n', content)
+      m.update(content)
+      f.close()
+    return m.hexdigest()