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#!/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/.
# TODO: it might be a good idea of adding a system name (e.g. 'Ubuntu' for
# linux) to the information; I certainly wouldn't want anyone parsing this
# information and having behaviour depend on it
import json
import os
import platform
import re
import sys
import mozfile
# keep a copy of the os module since updating globals overrides this
_os = os
class unknown(object):
"""marker class for unknown information"""
def __nonzero__(self):
return False
def __str__(self):
return 'UNKNOWN'
unknown = unknown() # singleton
# get system information
info = {'os': unknown,
'processor': unknown,
'version': unknown,
'bits': unknown }
(system, node, release, version, machine, processor) = platform.uname()
(bits, linkage) = platform.architecture()
# get os information and related data
if system in ["Microsoft", "Windows"]:
info['os'] = 'win'
# There is a Python bug on Windows to determine platform values
# http://bugs.python.org/issue7860
if "PROCESSOR_ARCHITEW6432" in os.environ:
processor = os.environ.get("PROCESSOR_ARCHITEW6432", processor)
else:
processor = os.environ.get('PROCESSOR_ARCHITECTURE', processor)
system = os.environ.get("OS", system).replace('_', ' ')
service_pack = os.sys.getwindowsversion()[4]
info['service_pack'] = service_pack
elif system == "Linux":
if hasattr(platform, "linux_distribution"):
(distro, version, codename) = platform.linux_distribution()
else:
(distro, version, codename) = platform.dist()
version = "%s %s" % (distro, version)
if not processor:
processor = machine
info['os'] = 'linux'
elif system in ['DragonFly', 'FreeBSD', 'NetBSD', 'OpenBSD']:
info['os'] = 'bsd'
version = sys.platform
elif system == "Darwin":
(release, versioninfo, machine) = platform.mac_ver()
version = "OS X %s" % release
info['os'] = 'mac'
elif sys.platform in ('solaris', 'sunos5'):
info['os'] = 'unix'
version = sys.platform
info['version'] = version # os version
# processor type and bits
if processor in ["i386", "i686"]:
if bits == "32bit":
processor = "x86"
elif bits == "64bit":
processor = "x86_64"
elif processor.upper() == "AMD64":
bits = "64bit"
processor = "x86_64"
elif processor == "Power Macintosh":
processor = "ppc"
bits = re.search('(\d+)bit', bits).group(1)
info.update({'processor': processor,
'bits': int(bits),
})
# standard value of choices, for easy inspection
choices = {'os': ['linux', 'bsd', 'win', 'mac', 'unix'],
'bits': [32, 64],
'processor': ['x86', 'x86_64', 'ppc']}
def sanitize(info):
"""Do some sanitization of input values, primarily
to handle universal Mac builds."""
if "processor" in info and info["processor"] == "universal-x86-x86_64":
# If we're running on OS X 10.6 or newer, assume 64-bit
if release[:4] >= "10.6": # Note this is a string comparison
info["processor"] = "x86_64"
info["bits"] = 64
else:
info["processor"] = "x86"
info["bits"] = 32
# method for updating information
def update(new_info):
"""
Update the info.
:param new_info: Either a dict containing the new info or a path/url
to a json file containing the new info.
"""
if isinstance(new_info, basestring):
f = mozfile.load(new_info)
new_info = json.loads(f.read())
f.close()
info.update(new_info)
sanitize(info)
globals().update(info)
# convenience data for os access
for os_name in choices['os']:
globals()['is' + os_name.title()] = info['os'] == os_name
# unix is special
if isLinux or isBsd:
globals()['isUnix'] = True
def find_and_update_from_json(*dirs):
"""
Find a mozinfo.json file, load it, and update the info with the
contents.
:param dirs: Directories in which to look for the file. They will be
searched after first looking in the root of the objdir
if the current script is being run from a Mozilla objdir.
Returns the full path to mozinfo.json if it was found, or None otherwise.
"""
# First, see if we're in an objdir
try:
from mozbuild.base import MozbuildObject
build = MozbuildObject.from_environment()
json_path = _os.path.join(build.topobjdir, "mozinfo.json")
if _os.path.isfile(json_path):
update(json_path)
return json_path
except ImportError:
pass
for d in dirs:
d = _os.path.abspath(d)
json_path = _os.path.join(d, "mozinfo.json")
if _os.path.isfile(json_path):
update(json_path)
return json_path
return None
update({})
# exports
__all__ = info.keys()
__all__ += ['is' + os_name.title() for os_name in choices['os']]
__all__ += [
'info',
'unknown',
'main',
'choices',
'update',
'find_and_update_from_json',
]
def main(args=None):
# parse the command line
from optparse import OptionParser
parser = OptionParser(description=__doc__)
for key in choices:
parser.add_option('--%s' % key, dest=key,
action='store_true', default=False,
help="display choices for %s" % key)
options, args = parser.parse_args()
# args are JSON blobs to override info
if args:
for arg in args:
if _os.path.exists(arg):
string = file(arg).read()
else:
string = arg
update(json.loads(string))
# print out choices if requested
flag = False
for key, value in options.__dict__.items():
if value is True:
print '%s choices: %s' % (key, ' '.join([str(choice)
for choice in choices[key]]))
flag = True
if flag: return
# otherwise, print out all info
for key, value in info.items():
print '%s: %s' % (key, value)
if __name__ == '__main__':
main()
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