gecko-dev/config/writemozinfo.py

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3.5 KiB
Python
Executable File

#!/usr/bin/env python
# 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/.
#
# This script is run during configure, taking variables set in configure
# and producing a JSON file that describes some portions of the build
# configuration, such as the target OS and CPU.
#
# The output file is intended to be used as input to the mozinfo package.
from __future__ import print_function
import os
import re
import sys
import json
def build_dict(env=os.environ):
"""
Build a dict containing data about the build configuration from
the environment.
"""
d = {}
# Check that all required variables are present first.
required = ["TARGET_CPU", "OS_TARGET", "MOZ_WIDGET_TOOLKIT"]
missing = [r for r in required if r not in env]
if missing:
raise Exception("Missing required environment variables: %s" %
', '.join(missing))
if 'MOZCONFIG' in env:
mozconfig = env["MOZCONFIG"]
if 'TOPSRCDIR' in env:
mozconfig = os.path.join(env["TOPSRCDIR"], mozconfig)
d['mozconfig'] = os.path.normpath(mozconfig)
if 'TOPSRCDIR' in env:
d["topsrcdir"] = env["TOPSRCDIR"]
# os
o = env["OS_TARGET"]
known_os = {"Linux": "linux",
"WINNT": "win",
"Darwin": "mac",
"Android": "b2g" if env["MOZ_WIDGET_TOOLKIT"] == "gonk" else "android"}
if o in known_os:
d["os"] = known_os[o]
else:
# Allow unknown values, just lowercase them.
d["os"] = o.lower()
# Widget toolkit, just pass the value directly through.
d["toolkit"] = env["MOZ_WIDGET_TOOLKIT"]
# Application name
if 'MOZ_APP_NAME' in env:
d["appname"] = env["MOZ_APP_NAME"]
# processor
p = env["TARGET_CPU"]
# for universal mac builds, put in a special value
if d["os"] == "mac" and "UNIVERSAL_BINARY" in env and env["UNIVERSAL_BINARY"] == "1":
p = "universal-x86-x86_64"
else:
# do some slight massaging for some values
#TODO: retain specific values in case someone wants them?
if p.startswith("arm"):
p = "arm"
elif re.match("i[3-9]86", p):
p = "x86"
d["processor"] = p
# hardcoded list of 64-bit CPUs
if p in ["x86_64", "ppc64"]:
d["bits"] = 64
# hardcoded list of known 32-bit CPUs
elif p in ["x86", "arm", "ppc"]:
d["bits"] = 32
# other CPUs will wind up with unknown bits
# debug
d["debug"] = 'MOZ_DEBUG' in env and env['MOZ_DEBUG'] == '1'
# crashreporter
d["crashreporter"] = 'MOZ_CRASHREPORTER' in env and env['MOZ_CRASHREPORTER'] == '1'
# asan
d["asan"] = 'MOZ_ASAN' in env and env['MOZ_ASAN'] == '1'
return d
def write_json(file, env=os.environ):
"""
Write JSON data about the configuration specified in |env|
to |file|, which may be a filename or file-like object.
See build_dict for information about what environment variables are used,
and what keys are produced.
"""
build_conf = build_dict(env)
if isinstance(file, basestring):
with open(file, "w") as f:
json.dump(build_conf, f)
else:
json.dump(build_conf, file)
if __name__ == '__main__':
try:
write_json(sys.argv[1] if len(sys.argv) > 1 else sys.stdout)
except Exception as e:
print(str(e), file=sys.stderr)
sys.exit(1)