gen_test_backend.py

Enable keyboard shortcuts

# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os

import sys

import mozpack.path as mozpath

from mozbuild.backend.test_manifest import TestManifestBackend

from mozbuild.base import BuildEnvironmentNotFoundException, MozbuildObject

from mozbuild.frontend.emitter import TreeMetadataEmitter

from mozbuild.frontend.reader import BuildReader, EmptyConfig

def gen_test_backend():

    build_obj = MozbuildObject.from_environment()

    try:

        config = build_obj.config_environment

    except BuildEnvironmentNotFoundException:

        # Create a stub config.status file, since the TestManifest backend needs

        # to be re-created if configure runs. If the file doesn't exist,

        # mozbuild continually thinks the TestManifest backend is out of date

        # and tries to regenerate it.

        if not os.path.isdir(build_obj.topobjdir):

            os.makedirs(build_obj.topobjdir)

        config_status = mozpath.join(build_obj.topobjdir, "config.status")

        open(config_status, "w").close()

        print("No build detected, test metadata may be incomplete.")

        # If 'JS_STANDALONE' is set, tests that don't require an objdir won't

        # be picked up due to bug 1345209.

        substs = EmptyConfig.default_substs

        if "JS_STANDALONE" in substs:

            del substs["JS_STANDALONE"]

        config = EmptyConfig(build_obj.topsrcdir, substs)

        config.topobjdir = build_obj.topobjdir

    reader = BuildReader(config)

    emitter = TreeMetadataEmitter(config)

    backend = TestManifestBackend(config)

    context = reader.read_topsrcdir()

    data = emitter.emit(context, emitfn=emitter._process_test_manifests)

    backend.consume(data)

if __name__ == "__main__":

    sys.exit(gen_test_backend())