config/writemozinfo.py

   1 #!/usr/bin/env python
   2 # This Source Code Form is subject to the terms of the Mozilla Public
   3 # License, v. 2.0. If a copy of the MPL was not distributed with this
   4 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   5
   6 #
   7 # This script is run during configure, taking variables set in configure
   8 # and producing a JSON file that describes some portions of the build
   9 # configuration, such as the target OS and CPU.
  10 #
  11 # The output file is intended to be used as input to the mozinfo package.
  12 from __future__ import print_function
  13 import os
  14 import re
  15 import sys
  16 import json
  17
  18 import buildconfig
  19
  20 def build_dict(env=None):
  21     """
  22     Build a dict containing data about the build configuration from
  23     the environment.
  24     """
  25     substs = env or buildconfig.substs
  26     env = env or os.environ
  27
  28     # Check that all required variables are present first.
  29     required = ["TARGET_CPU", "OS_TARGET", "MOZ_WIDGET_TOOLKIT"]
  30     missing = [r for r in required if r not in substs]
  31     if missing:
  32         raise Exception("Missing required environment variables: %s" %
  33                         ', '.join(missing))
  34
  35     d = {}
  36     d['topsrcdir'] = substs.get('TOPSRCDIR', buildconfig.topsrcdir)
  37
  38     if 'MOZCONFIG' in env:
  39         mozconfig = env["MOZCONFIG"]
  40         if 'TOPSRCDIR' in env:
  41             mozconfig = os.path.join(env["TOPSRCDIR"], mozconfig)
  42         d['mozconfig'] = os.path.normpath(mozconfig)
  43
  44     # os
  45     o = substs["OS_TARGET"]
  46     known_os = {"Linux": "linux",
  47                 "WINNT": "win",
  48                 "Darwin": "mac",
  49                 "Android": "b2g" if substs["MOZ_WIDGET_TOOLKIT"] == "gonk" else "android"}
  50     if o in known_os:
  51         d["os"] = known_os[o]
  52     else:
  53         # Allow unknown values, just lowercase them.
  54         d["os"] = o.lower()
  55
  56     # Widget toolkit, just pass the value directly through.
  57     d["toolkit"] = substs["MOZ_WIDGET_TOOLKIT"]
  58
  59     # Application name
  60     if 'MOZ_APP_NAME' in substs:
  61         d["appname"] = substs["MOZ_APP_NAME"]
  62
  63     # processor
  64     p = substs["TARGET_CPU"]
  65     # for universal mac builds, put in a special value
  66     if d["os"] == "mac" and "UNIVERSAL_BINARY" in substs and substs["UNIVERSAL_BINARY"] == "1":
  67         p = "universal-x86-x86_64"
  68     else:
  69         # do some slight massaging for some values
  70         #TODO: retain specific values in case someone wants them?
  71         if p.startswith("arm"):
  72             p = "arm"
  73         elif re.match("i[3-9]86", p):
  74             p = "x86"
  75     d["processor"] = p
  76     # hardcoded list of 64-bit CPUs
  77     if p in ["x86_64", "ppc64"]:
  78         d["bits"] = 64
  79     # hardcoded list of known 32-bit CPUs
  80     elif p in ["x86", "arm", "ppc"]:
  81         d["bits"] = 32
  82     # other CPUs will wind up with unknown bits
  83
  84     d['debug'] = substs.get('MOZ_DEBUG') == '1'
  85     d['crashreporter'] = substs.get('MOZ_CRASHREPORTER') == '1'
  86     d['asan'] = substs.get('MOZ_ASAN') == '1'
  87     d['tests_enabled'] = substs.get('ENABLE_TESTS') == "1"
  88     d['bin_suffix'] = substs.get('BIN_SUFFIX', '')
  89
  90     return d
  91
  92 def write_json(file, env=None):
  93     """
  94     Write JSON data about the configuration specified in |env|
  95     to |file|, which may be a filename or file-like object.
  96     See build_dict for information about what  environment variables are used,
  97     and what keys are produced.
  98     """
  99     build_conf = build_dict(env=env)
 100     if isinstance(file, basestring):
 101         with open(file, "w") as f:
 102             json.dump(build_conf, f)
 103     else:
 104         json.dump(build_conf, file)
 105
 106
 107 if __name__ == '__main__':
 108     try:
 109         write_json(sys.argv[1] if len(sys.argv) > 1 else sys.stdout)
 110     except Exception as e:
 111         print(str(e), file=sys.stderr)
 112         sys.exit(1)