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Fuchsia: Adds a script to make a jiri manifest for third_party/pkg stuff
Building the Observatory and the full SDK requires the third_party Dart packages that we DEPS into a standalone SDK checkout. Fuchsia uses jiri manifests rather than DEPS files, so this CL adds a script that translates the DEPS for third_party/pkg stuff into a jiri manifest. R=asiva@google.com Review URL: https://codereview.chromium.org/2548173002 .
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108
tools/create_pkg_manifest.py
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108
tools/create_pkg_manifest.py
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#!/usr/bin/env python
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# Copyright 2016 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: create_pkg_manifest.py --deps <DEPS file> --output <jiri manifest>
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#
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# This script parses the DEPS file, extracts dependencies that live under
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# third_party/pkg, and writes them to a file suitable for consumption as a
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# jiri manifest for Fuchsia. It is assumed that the Dart tree is under
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# //dart in the Fuchsia world, and so the dependencies extracted by this script
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# will go under //dart/third_party/pkg.
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import argparse
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import os
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import sys
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import utils
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SCRIPT_DIR = os.path.dirname(sys.argv[0])
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DART_ROOT = os.path.realpath(os.path.join(SCRIPT_DIR, '..'))
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# Used in parsing the DEPS file.
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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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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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# Extract the deps and filter.
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deps = local_scope.get('deps', {})
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filtered_deps = {}
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for k, v in deps.iteritems():
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if 'sdk/third_party/pkg' in k:
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new_key = k.replace('sdk', 'dart', 1)
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filtered_deps[new_key] = v
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return filtered_deps
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def WriteManifest(deps, manifest_file):
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project_template = """
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<project name="%s"
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path="%s"
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remote="%s"
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revision="%s"/>
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"""
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warning = ('<!-- This file is generated by '
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'//dart/tools/create_pkg_manifest.py. DO NOT EDIT -->\n')
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with open(manifest_file, 'w') as manifest:
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manifest.write(warning)
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manifest.write('<?xml version="1.0" encoding="UTF-8"?>\n')
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manifest.write('<manifest>\n')
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manifest.write(' <projects>\n')
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for path, remote in deps.iteritems():
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remote_components = remote.split('@')
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remote_url = remote_components[0]
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remote_version = remote_components[1]
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manifest.write(
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project_template % (path, path, remote_url, remote_version))
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manifest.write(' </projects>\n')
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manifest.write('</manifest>\n')
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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 a jiri manifest for third_party/pkg.')
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parser.add_argument('--deps', '-d',
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type=str,
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help='Input DEPS file.',
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default=os.path.join(DART_ROOT, 'DEPS'))
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parser.add_argument('--output', '-o',
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type=str,
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help='Output jiri manifest.',
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default=os.path.join(DART_ROOT, 'dart_third_party_pkg.manifest'))
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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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deps = ParseDepsFile(args.deps)
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WriteManifest(deps, args.output)
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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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