mirror of
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127 lines
4.2 KiB
Python
127 lines
4.2 KiB
Python
# Copyright 2017 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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"""Helper functions to upload data to Google Storage.
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Text data should be streamed to logdog using |logdog_helper| module.
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Due to logdog not having image or HTML viewer, those instead should be uploaded
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to Google Storage directly using this module.
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"""
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import logging
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import os
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import sys
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import time
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import urlparse
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from pylib.constants import host_paths
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from pylib.utils import decorators
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if host_paths.DEVIL_PATH not in sys.path:
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sys.path.append(host_paths.DEVIL_PATH)
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from devil.utils import cmd_helper
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_GSUTIL_PATH = os.path.join(
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host_paths.DIR_SOURCE_ROOT, 'third_party', 'catapult',
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'third_party', 'gsutil', 'gsutil.py')
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_PUBLIC_URL = 'https://storage.googleapis.com/%s/'
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_AUTHENTICATED_URL = 'https://storage.cloud.google.com/%s/'
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@decorators.NoRaiseException(default_return_value='')
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def upload(name, filepath, bucket, gs_args=None, command_args=None,
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content_type=None, authenticated_link=True):
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"""Uploads data to Google Storage.
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Args:
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name: Name of the file on Google Storage.
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filepath: Path to file you want to upload.
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bucket: Bucket to upload file to.
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content_type: Content type to upload as. If not specified, Google storage
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will attempt to infer content type from file extension.
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authenticated_link: Whether to return a link that requires user to
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authenticate with a Google account. Setting this to false will return
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a link that does not require user to be signed into Google account but
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will only work for completely public storage buckets.
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Returns:
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Web link to item uploaded to Google Storage bucket.
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"""
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bucket = _format_bucket_name(bucket)
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gs_path = 'gs://%s/%s' % (bucket, name)
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logging.info('Uploading %s to %s', filepath, gs_path)
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cmd = [_GSUTIL_PATH, '-q']
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cmd.extend(gs_args or [])
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if content_type:
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cmd.extend(['-h', 'Content-Type:%s' % content_type])
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cmd.extend(['cp'] + (command_args or []) + [filepath, gs_path])
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cmd_helper.RunCmd(cmd)
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return get_url_link(name, bucket, authenticated_link)
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@decorators.NoRaiseException(default_return_value='')
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def read_from_link(link):
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# Note that urlparse returns the path with an initial '/', so we only need to
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# add one more after the 'gs;'
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gs_path = 'gs:/%s' % urlparse.urlparse(link).path
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cmd = [_GSUTIL_PATH, '-q', 'cat', gs_path]
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return cmd_helper.GetCmdOutput(cmd)
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@decorators.NoRaiseException(default_return_value=False)
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def exists(name, bucket):
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bucket = _format_bucket_name(bucket)
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gs_path = 'gs://%s/%s' % (bucket, name)
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cmd = [_GSUTIL_PATH, '-q', 'stat', gs_path]
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return_code = cmd_helper.RunCmd(cmd)
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return return_code == 0
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# TODO(jbudorick): Delete this function. Only one user of it.
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def unique_name(basename, suffix='', timestamp=True, device=None):
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"""Helper function for creating a unique name for a file to store in GS.
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Args:
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basename: Base of the unique filename.
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suffix: Suffix of filename.
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timestamp: Whether or not to add a timestamp to name.
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device: Device to add device serial of to name.
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"""
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return '%s%s%s%s' % (
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basename,
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'_%s' % time.strftime('%Y_%m_%d_T%H_%M_%S-UTC', time.gmtime())
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if timestamp else '',
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'_%s' % device.serial if device else '',
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suffix)
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def get_url_link(name, bucket, authenticated_link=True):
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"""Get url link before/without uploading.
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Args:
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name: Name of the file on Google Storage.
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bucket: Bucket to upload file to.
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authenticated_link: Whether to return a link that requires user to
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authenticate with a Google account. Setting this to false will return
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a link that does not require user to be signed into Google account but
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will only work for completely public storage buckets.
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Returns:
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Web link to item to be uploaded to Google Storage bucket
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"""
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bucket = _format_bucket_name(bucket)
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url_template = _AUTHENTICATED_URL if authenticated_link else _PUBLIC_URL
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return os.path.join(url_template % bucket, name)
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def _format_bucket_name(bucket):
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if bucket.startswith('gs://'):
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bucket = bucket[len('gs://'):]
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if bucket.endswith('/'):
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bucket = bucket[:-1]
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return bucket
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