435 lines
15 KiB
Python
435 lines
15 KiB
Python
# Copyright (c) 2016 The Chromium Embedded Framework Authors. All rights
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# reserved. Use of this source code is governed by a BSD-style license that
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# can be found in the LICENSE file.
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import datetime
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import json
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import os
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import re
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import urllib
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# Class used to build the cefbuilds JSON file. See cef_json_builder_example.py
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# for example usage. See cef_json_builder_test.py for unit tests.
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#
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# Example JSON structure:
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# {
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# "linux32": {
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# "versions": [
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# {
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# "cef_version": "3.2704.1414.g185cd6c",
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# "chromium_version": "51.0.2704.47"
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# "files": [
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# {
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# "last_modified": "2016-05-18T22:42:14.066Z"
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# "name": "cef_binary_3.2704.1414.g185cd6c_linux32.tar.bz2",
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# "sha1": "47c5cfea43912a1d1771f343de35b205f388415f"
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# "size": "48549450",
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# "type": "standard",
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# }, ...
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# ],
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# }, ...
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# ]
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# }, ...
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# }
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#
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# Notes:
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# - "files" in a given version will be sorted from newest to oldest based on the
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# "last_modified" value.
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# - "versions" in a given platform will be sorted from newest to oldest based on
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# the "last_modified" value of the first (newest) "file" sub-value.
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# - There will be at most one record at the "files" level for each "type".
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# This date format intentionally matches the format used in Artifactory
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# directory listings.
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_CEF_DATE_FORMAT = "%Y-%m-%dT%H:%M:%S.%fZ"
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def parse_date(date):
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return datetime.datetime.strptime(date, _CEF_DATE_FORMAT)
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def format_date(date):
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return date.strftime(_CEF_DATE_FORMAT)
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# Helpers to format datetime values on JSON read/write.
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def cef_from_json(json_object):
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if 'last_modified' in json_object:
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json_object['last_modified'] = parse_date(json_object['last_modified'])
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return json_object
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class cef_json_encoder(json.JSONEncoder):
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def default(self, o):
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if isinstance(o, datetime.datetime):
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return format_date(o)
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return o
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class cef_json_builder:
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""" Class used to build the cefbuilds JSON file. """
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def __init__(self, prettyprint=False, silent=True):
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""" Create a new cef_json_builder object. """
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self._prettyprint = prettyprint
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self._silent = silent
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self._fatalerrors = False
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self.clear()
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@staticmethod
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def get_platforms():
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""" Returns the list of supported platforms. """
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return ('linux32', 'linux64', 'macosx64', 'windows32', 'windows64')
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@staticmethod
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def get_distrib_types():
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""" Returns the list of supported distribution types. """
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return ('standard', 'minimal', 'client', 'release_symbols', 'debug_symbols')
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@staticmethod
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def is_valid_version(version):
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""" Returns true if the specified CEF version is fully qualified and valid. """
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return bool(re.compile('^3.[0-9]{4,5}.[0-9]{4,5}.g[0-9a-f]{7}$').match(version))
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@staticmethod
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def is_valid_chromium_version(version):
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""" Returns true if the specified Chromium version is fully qualified and valid. """
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if version is None:
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return False
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return version == 'master' or \
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re.compile('^[1-9]{1}[0-9]{1}\.0\.[0-9]{4,5}.[0-9]{1,3}$').match(version)
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@staticmethod
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def get_file_name(version, platform, type):
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""" Returns the expected distribution file name excluding extension based on
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the input parameters. """
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if type != 'standard':
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type_str = '_' + type
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else:
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type_str = ''
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return 'cef_binary_%s_%s%s' % (version, platform, type_str)
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def clear(self):
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""" Clear the contents of this object. """
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self._data = {}
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for platform in self.get_platforms():
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self._data[platform] = {'versions': []}
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self._versions = {}
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self._queryct = 0
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def __repr__(self):
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# Return a string representation of this object.
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self._sort_versions()
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if self._prettyprint:
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return json.dumps(self._data, cls=cef_json_encoder, sort_keys=True,
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indent=2, separators=(',', ': '))
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else:
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return json.dumps(self._data, cls=cef_json_encoder, sort_keys=True)
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def _print(self, msg):
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if self._fatalerrors:
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raise Exception(msg)
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if not self._silent:
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print msg
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def get_query_count(self):
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""" Returns the number of queries sent while building. """
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return self._queryct
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def set_chromium_version(self, cef_version, chromium_version=None):
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""" Set the matching Chromium version. If the specified Chromium version is
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invalid then it will be queried remotely. """
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if not self.is_valid_version(cef_version):
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raise Exception('Invalid CEF version: %s' % cef_version)
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if not self.is_valid_chromium_version(chromium_version):
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if cef_version in self._versions:
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# Keep the Chromium version that we already know about.
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return self._versions[cef_version]
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# Try to identify the Chromium version.
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chromium_version = 'master'
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git_hash = cef_version[-7:]
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query_url = 'https://bitbucket.org/chromiumembedded/cef/raw/%s/CHROMIUM_BUILD_COMPATIBILITY.txt' % git_hash
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self._queryct = self._queryct + 1
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if not self._silent:
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print 'Reading %s' % query_url
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try:
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# Read the remote URL contents.
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handle = urllib.urlopen(query_url)
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compat_value = handle.read().strip()
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handle.close()
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# Parse the contents.
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config = eval(compat_value, {'__builtins__': None}, None)
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if not 'chromium_checkout' in config:
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raise Exception('Unexpected contents')
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val = config['chromium_checkout']
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if val.find('refs/tags/') == 0:
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chromium_version = val[10:]
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except Exception, e:
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print 'Failed to read Chromium version information'
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raise
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if not self.is_valid_chromium_version(chromium_version):
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raise Exception('Invalid Chromium version: %s' % chromium_version)
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self._versions[cef_version] = chromium_version
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return chromium_version
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def get_chromium_version(self, cef_version):
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""" Return the matching Chromium version. If not currently known it will
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be queried remotely. """
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if cef_version in self._versions:
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return self._versions[cef_version]
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# Identify the Chromium version.
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return self.set_chromium_version(cef_version)
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def has_chromium_version(self, cef_version):
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""" Return True if a matching Chromium version is known. """
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return cef_version in self._versions
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def load(self, json_string, fatalerrors=True):
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""" Load new JSON into this object. Any existing contents will be cleared.
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If |fatalerrors| is True then any errors while loading the JSON file
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will cause an Exception to be thrown. Otherwise, malformed entries will
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will be discarded. Unrecognized keys will always be discarded silently.
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"""
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self.clear()
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self._fatalerrors = fatalerrors
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new_data = json.JSONDecoder(object_hook = cef_from_json).decode(json_string)
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# Validate the new data's structure.
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for platform in self._data.keys():
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if not platform in new_data:
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self._print('load: Platform %s not found' % platform)
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continue
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if not 'versions' in new_data[platform]:
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self._print('load: Missing platform key(s) for %s' % platform)
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continue
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valid_versions = []
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for version in new_data[platform]['versions']:
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if not 'cef_version' in version or \
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not 'chromium_version' in version or \
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not 'files' in version:
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self._print('load: Missing version key(s) for %s' % platform)
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continue
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valid_files = []
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found_types = []
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for file in version['files']:
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if not 'type' in file or \
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not 'name' in file or \
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not 'size' in file or \
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not 'last_modified' in file or \
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not 'sha1' in file:
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self._print('load: Missing file key(s) for %s %s' % (platform, version['cef_version']))
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continue
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(expected_platform, expected_version, expected_type) = self._parse_name(file['name'])
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if expected_platform != platform or \
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expected_version != version['cef_version'] or \
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expected_type != file['type']:
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self._print('load: File name/attribute mismatch for %s %s %s' %
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(platform, version['cef_version'], file['name']))
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continue
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self._validate_args(platform, version['cef_version'], file['type'],
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file['size'], file['last_modified'], file['sha1'])
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if file['type'] in found_types:
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self._print('load: Duplicate %s type for %s %s' % (file['type'], platform, version['cef_version']))
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continue
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found_types.append(file['type'])
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valid_files.append({
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'type': file['type'],
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'name': file['name'],
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'size': file['size'],
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'last_modified': file['last_modified'],
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'sha1': file['sha1'],
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})
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if len(valid_files) > 0:
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valid_versions.append({
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'cef_version': version['cef_version'],
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'chromium_version': self.set_chromium_version(version['cef_version'], version['chromium_version']),
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'files': self._sort_files(valid_files)
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})
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if len(valid_versions) > 0:
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self._data[platform]['versions'] = valid_versions
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self._fatalerrors = False
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def _sort_versions(self):
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# Sort version records by first (newest) file last_modified value.
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for platform in self._data.keys():
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for i in range(0, len(self._data[platform]['versions'])):
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self._data[platform]['versions'] = \
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sorted(self._data[platform]['versions'],
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key=lambda k: k['files'][0]['last_modified'],
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reverse=True)
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@staticmethod
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def _sort_files(files):
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# Sort file records by last_modified.
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return sorted(files, key=lambda k: k['last_modified'], reverse=True)
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@staticmethod
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def _parse_name(name):
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# Remove file extension.
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name_no_ext = os.path.splitext(name)[0]
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if name_no_ext[-4:] == '.tar':
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name_no_ext = name_no_ext[:-4]
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name_parts = name_no_ext.split('_')
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if len(name_parts) < 4 or name_parts[0] != 'cef' or name_parts[1] != 'binary':
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raise Exception('Invalid filename: %s' % name)
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# Remove 'cef' and 'binary'.
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del name_parts[0]
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del name_parts[0]
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type = None
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# Might be '<version>_<platform>_[debug|release]_symbols'.
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if name_parts[-1] == 'symbols':
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del name_parts[-1]
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if name_parts[-1] == 'debug' or name_parts[-1] == 'release':
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type = name_parts[-1] + '_symbols'
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del name_parts[-1]
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# Might be '<version>_<platform>_minimal'.
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if name_parts[-1] == 'minimal':
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type = 'minimal'
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del name_parts[-1]
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# Might be '<version>_<platform>_client'.
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if name_parts[-1] == 'client':
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type = 'client'
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del name_parts[-1]
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# Remainder must be '<version>_<platform>'.
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if len(name_parts) != 2:
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raise Exception('Invalid filename: %s' % name)
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if type is None:
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type = 'standard'
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version = name_parts[0]
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platform = name_parts[1]
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return [platform, version, type]
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@staticmethod
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def _validate_args(platform, version, type, size, last_modified, sha1):
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# Validate input arguments.
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if not platform in cef_json_builder.get_platforms():
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raise Exception('Unsupported platform: %s' % platform)
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if not cef_json_builder.is_valid_version(version):
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raise Exception('Invalid version: %s' % version)
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if not type in cef_json_builder.get_distrib_types():
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raise Exception('Unsupported distribution type: %s' % type)
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if int(size) <= 0:
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raise Exception('Invalid size: %s' % size)
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if not isinstance(last_modified, datetime.datetime):
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# datetime will throw a ValueException if it doesn't parse.
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parse_date(last_modified)
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if not re.compile('^[0-9a-f]{40}$').match(sha1):
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raise Exception('Invalid sha1: %s' % sha1)
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def add_file(self, name, size, last_modified, sha1):
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""" Add a file record with the specified attributes. Returns True if the
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file is added or False if a file with the same |name| and |sha1|
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already exists. """
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# Parse the file name.
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(platform, version, type) = self._parse_name(name)
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if not isinstance(size, (int, long)):
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size = int(size)
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if not isinstance(last_modified, datetime.datetime):
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last_modified = parse_date(last_modified)
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# Validate arguments.
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self._validate_args(platform, version, type, size, last_modified, sha1)
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# Find the existing version record.
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version_idx = -1;
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for i in range(0, len(self._data[platform]['versions'])):
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if self._data[platform]['versions'][i]['cef_version'] == version:
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# Check the version record.
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self._print('add_file: Check %s %s' % (platform, version))
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version_idx = i
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break
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if version_idx == -1:
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# Add a new version record.
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self._print('add_file: Add %s %s' % (platform, version))
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self._data[platform]['versions'].append({
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'cef_version': version,
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'chromium_version': self.get_chromium_version(version),
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'files': []
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})
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version_idx = len(self._data[platform]['versions']) - 1
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# Find the existing file record with matching type.
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file_changed = True
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for i in range(0, len(self._data[platform]['versions'][version_idx]['files'])):
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if self._data[platform]['versions'][version_idx]['files'][i]['type'] == type:
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existing_sha1 = self._data[platform]['versions'][version_idx]['files'][i]['sha1']
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if existing_sha1 != sha1:
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# Remove the existing file record.
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self._print(' Remove %s %s' % (name, existing_sha1))
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del self._data[platform]['versions'][version_idx]['files'][i]
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else:
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file_changed = False
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break
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if file_changed:
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# Add a new file record.
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self._print(' Add %s %s' % (name, sha1))
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self._data[platform]['versions'][version_idx]['files'].append({
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'type': type,
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'name': name,
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'size': size,
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'last_modified': last_modified,
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'sha1': sha1
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})
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# Sort file records by last_modified.
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# This is necessary for _sort_versions() to function correctly.
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self._data[platform]['versions'][version_idx]['files'] = \
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self._sort_files(self._data[platform]['versions'][version_idx]['files'])
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return file_changed
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def get_files(self, platform=None, version=None, type=None):
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""" Return the files that match the input parameters.
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All parameters are optional. Version will do partial matching. """
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results = []
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if platform is None:
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platforms = self._data.keys()
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else:
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platforms = [platform]
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for platform in platforms:
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for version_obj in self._data[platform]['versions']:
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if version is None or version_obj['cef_version'].find(version) == 0:
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for file_obj in version_obj['files']:
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if type is None or type == file_obj['type']:
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result_obj = file_obj;
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# Add additional metadata.
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result_obj['platform'] = platform
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result_obj['cef_version'] = version_obj['cef_version']
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result_obj['chromium_version'] = version_obj['chromium_version']
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results.append(result_obj)
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return results
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def get_versions(self, platform):
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""" Return all versions for the specified |platform|. """
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return self._data[platform]['versions']
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