mirror of
https://github.com/flutter/flutter.git
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116 lines
3.7 KiB
Python
Executable File
116 lines
3.7 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2017 The Dart project 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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# Usage: tools/dart/create_updated_flutter_deps.py [-d dart/DEPS] [-f flutter/DEPS]
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#
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# This script parses existing flutter DEPS file, identifies all 'dart_' prefixed
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# dependencies, looks up revision from dart DEPS file, updates those dependencies
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# and rewrites flutter DEPS file.
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import argparse
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import os
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import sys
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DART_SCRIPT_DIR = os.path.dirname(sys.argv[0])
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DART_ROOT = os.path.realpath(os.path.join(DART_SCRIPT_DIR, '../../third_party/dart'))
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FLUTTER_ROOT = os.path.realpath(os.path.join(DART_SCRIPT_DIR, '../../flutter'))
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class VarImpl(object):
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def __init__(self, local_scope):
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self._local_scope = local_scope
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def Lookup(self, var_name):
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"""Implements the Var syntax."""
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if var_name in self._local_scope.get("vars", {}):
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return self._local_scope["vars"][var_name]
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if var_name == 'host_os':
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return 'linux' # assume some default value
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if var_name == 'host_cpu':
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return 'x64' # assume some default value
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raise Exception("Var is not defined: %s" % var_name)
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def ParseDepsFile(deps_file):
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local_scope = {}
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var = VarImpl(local_scope)
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global_scope = {
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'Var': var.Lookup,
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'deps_os': {},
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}
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# Read the content.
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with open(deps_file, 'r') as fp:
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deps_content = fp.read()
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# Eval the content.
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exec(deps_content, global_scope, local_scope)
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return local_scope.get('vars', {})
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def ParseArgs(args):
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args = args[1:]
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parser = argparse.ArgumentParser(
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description='A script to generate updated dart dependencies for flutter DEPS.')
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parser.add_argument('--dart_deps', '-d',
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type=str,
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help='Dart DEPS file.',
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default=os.path.join(DART_ROOT, 'DEPS'))
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parser.add_argument('--flutter_deps', '-f',
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type=str,
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help='Flutter DEPS file.',
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default=os.path.join(FLUTTER_ROOT, 'DEPS'))
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return parser.parse_args(args)
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def Main(argv):
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args = ParseArgs(argv)
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new_deps = ParseDepsFile(args.dart_deps)
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old_deps = ParseDepsFile(args.flutter_deps)
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updated_deps = {}
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missing_deps = []
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# Collect updated dependencies
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for (k,v) in sorted(old_deps.iteritems()):
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if k not in ('dart_revision', 'dart_git') and k.startswith('dart_'):
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v = '???'
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dart_key = k[len('dart_'):]
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if not new_deps.has_key(dart_key):
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missing_deps.append(k)
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updated_revision = new_deps[dart_key].lstrip('@') if new_deps.has_key(dart_key) else v
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updated_deps[k] = updated_revision
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# Write updated DEPS file to a side
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updatedfilename = args.flutter_deps + ".new"
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updatedfile = open(updatedfilename, "w")
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file = open(args.flutter_deps)
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lines = file.readlines()
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i = 0
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while i < len(lines):
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updatedfile.write(lines[i])
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if lines[i].startswith(" 'dart_revision':"):
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i = i + 2
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updatedfile.writelines([
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'\n',
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' # WARNING: DO NOT EDIT MANUALLY\n',
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' # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py\n'])
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while i < len(lines) and len(lines[i].strip()) > 0:
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i = i + 1
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for (k, v) in sorted(updated_deps.iteritems()):
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updatedfile.write(" '%s': '%s',\n" % (k, v))
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updatedfile.write('\n')
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i = i + 1
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if len(missing_deps) > 0:
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print("Error: flutter dependencies %s removed from dart" % missing_deps)
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print("Intermediate results are in %s" % updatedfilename)
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return 1
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# Rename updated DEPS file into a new DEPS file
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os.remove(args.flutter_deps)
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os.rename(updatedfilename, args.flutter_deps)
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return 0
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if __name__ == '__main__':
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sys.exit(Main(sys.argv))
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