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197 lines
6.7 KiB
Python
197 lines
6.7 KiB
Python
# Copyright 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import re
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from recipe_engine import recipe_api
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class GSUtilApi(recipe_api.RecipeApi):
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@property
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def gsutil_py_path(self):
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return self.package_repo_resource('gsutil.py')
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def __call__(self, cmd, name=None, use_retry_wrapper=True, version=None,
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parallel_upload=False, multithreaded=False, **kwargs):
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"""A step to run arbitrary gsutil commands.
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Note that this assumes that gsutil authentication environment variables
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(AWS_CREDENTIAL_FILE and BOTO_CONFIG) are already set, though if you want to
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set them to something else you can always do so using the env={} kwarg.
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Note also that gsutil does its own wildcard processing, so wildcards are
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valid in file-like portions of the cmd. See 'gsutil help wildcards'.
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Arguments:
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cmd: list of (string) arguments to pass to gsutil.
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Include gsutil-level options first (see 'gsutil help options').
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name: the (string) name of the step to use.
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Defaults to the first non-flag token in the cmd.
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"""
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if not name:
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name = (t for t in cmd if not t.startswith('-')).next()
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full_name = 'gsutil ' + name
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gsutil_path = self.gsutil_py_path
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cmd_prefix = []
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if use_retry_wrapper:
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# We pass the real gsutil_path to the wrapper so it doesn't have to do
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# brittle path logic.
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cmd_prefix = ['--', gsutil_path]
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gsutil_path = self.resource('gsutil_smart_retry.py')
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if version:
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cmd_prefix.extend(['--force-version', version])
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if parallel_upload:
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cmd_prefix.extend([
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'-o',
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'GSUtil:parallel_composite_upload_threshold=50M'
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])
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if multithreaded:
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cmd_prefix.extend(['-m'])
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if use_retry_wrapper:
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# The -- argument for the wrapped gsutil.py is escaped as ---- as python
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# 2.7.3 removes all occurrences of --, not only the first. It is unescaped
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# in gsutil_wrapper.py and then passed as -- to gsutil.py.
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# Note, that 2.7.6 doesn't have this problem, but it doesn't hurt.
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cmd_prefix.append('----')
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else:
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cmd_prefix.append('--')
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return self.m.python(full_name, gsutil_path, cmd_prefix + cmd,
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infra_step=True, **kwargs)
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def upload(self, source, bucket, dest, args=None, link_name='gsutil.upload',
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metadata=None, unauthenticated_url=False, **kwargs):
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args = [] if args is None else args[:]
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# Note that metadata arguments have to be passed before the command cp.
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metadata_args = self._generate_metadata_args(metadata)
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full_dest = 'gs://%s/%s' % (bucket, dest)
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cmd = metadata_args + ['cp'] + args + [source, full_dest]
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name = kwargs.pop('name', 'upload')
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result = self(cmd, name, **kwargs)
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if link_name:
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result.presentation.links[link_name] = self._http_url(
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bucket, dest, unauthenticated_url=unauthenticated_url)
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return result
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def download(self, bucket, source, dest, args=None, **kwargs):
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args = [] if args is None else args[:]
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full_source = 'gs://%s/%s' % (bucket, source)
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cmd = ['cp'] + args + [full_source, dest]
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name = kwargs.pop('name', 'download')
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return self(cmd, name, **kwargs)
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def download_url(self, url, dest, args=None, **kwargs):
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args = args or []
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url = self._normalize_url(url)
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cmd = ['cp'] + args + [url, dest]
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name = kwargs.pop('name', 'download_url')
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self(cmd, name, **kwargs)
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def cat(self, url, args=None, **kwargs):
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args = args or []
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url = self._normalize_url(url)
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cmd = ['cat'] + args + [url]
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name = kwargs.pop('name', 'cat')
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return self(cmd, name, **kwargs)
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def copy(self, source_bucket, source, dest_bucket, dest, args=None,
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link_name='gsutil.copy', metadata=None, unauthenticated_url=False,
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**kwargs):
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args = args or []
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args += self._generate_metadata_args(metadata)
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full_source = 'gs://%s/%s' % (source_bucket, source)
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full_dest = 'gs://%s/%s' % (dest_bucket, dest)
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cmd = ['cp'] + args + [full_source, full_dest]
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name = kwargs.pop('name', 'copy')
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result = self(cmd, name, **kwargs)
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if link_name:
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result.presentation.links[link_name] = self._http_url(
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dest_bucket, dest, unauthenticated_url=unauthenticated_url)
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def list(self, url, args=None, **kwargs):
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args = args or []
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url = self._normalize_url(url)
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cmd = ['ls'] + args + [url]
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name = kwargs.pop('name', 'list')
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return self(cmd, name, **kwargs)
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def signurl(self, private_key_file, bucket, dest, args=None, **kwargs):
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args = args or []
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full_source = 'gs://%s/%s' % (bucket, dest)
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cmd = ['signurl'] + args + [private_key_file, full_source]
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name = kwargs.pop('name', 'signurl')
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return self(cmd, name, **kwargs)
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def remove_url(self, url, args=None, **kwargs):
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args = args or []
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url = self._normalize_url(url)
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cmd = ['rm'] + args + [url]
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name = kwargs.pop('name', 'remove')
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self(cmd, name, **kwargs)
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def _generate_metadata_args(self, metadata):
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result = []
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if metadata:
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for k, v in sorted(metadata.iteritems(), key=lambda (k, _): k):
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field = self._get_metadata_field(k)
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param = (field) if v is None else ('%s:%s' % (field, v))
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result += ['-h', param]
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return result
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def _normalize_url(self, url):
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gs_prefix = 'gs://'
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# Defines the regex that matches a normalized URL.
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for prefix in (
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gs_prefix,
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'https://storage.cloud.google.com/',
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'https://storage.googleapis.com/',
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):
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if url.startswith(prefix):
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return gs_prefix + url[len(prefix):]
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raise AssertionError("%s cannot be normalized" % url)
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@classmethod
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def _http_url(cls, bucket, dest, unauthenticated_url=False):
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if unauthenticated_url:
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base = 'https://storage.googleapis.com/%s/%s'
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else:
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base = 'https://storage.cloud.google.com/%s/%s'
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return base % (bucket, dest)
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@staticmethod
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def _get_metadata_field(name, provider_prefix=None):
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"""Returns: (str) the metadata field to use with Google Storage
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The Google Storage specification for metadata can be found at:
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https://developers.google.com/storage/docs/gsutil/addlhelp/WorkingWithObjectMetadata
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"""
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# Already contains custom provider prefix
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if name.lower().startswith('x-'):
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return name
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# See if it's innately supported by Google Storage
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if name in (
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'Cache-Control',
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'Content-Disposition',
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'Content-Encoding',
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'Content-Language',
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'Content-MD5',
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'Content-Type',
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):
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return name
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# Add provider prefix
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if not provider_prefix:
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provider_prefix = 'x-goog-meta'
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return '%s-%s' % (provider_prefix, name)
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