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725466ff53
There are both mechanical and logical changes in this patch. The mechanical changes involve moving some files into the mozbuild package. The logical changes include move writing of mozinfo.json into config.status (from configure.in). There were some variable assignments being performed in configure.in. These variables were read from writemozinfo.py. However, these variables don't appear to be necessary! Now that mozinfo has full access to the underlying config.status data structure, it can now access these variables directly. I verified that every variable being assigned in configure.in had a corresponding AC_SUBST earlier in the file. The only variable that's a bit weird is the TOPSRCDIR and MOZCONFIG environment variables. mozinfo continues to look in the environment for MOZCONFIG. However TOPSRCDIR is now coming from config.status. As part of moving the code, I also modernized the test file, cleaned up some style, and removed some unused imports. --HG-- rename : config/writemozinfo.py => python/mozbuild/mozbuild/mozinfo.py rename : config/tests/unit-writemozinfo.py => python/mozbuild/mozbuild/test/test_mozinfo.py
138 lines
5.9 KiB
Python
138 lines
5.9 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Combined with build/autoconf/config.status.m4, ConfigStatus is an almost
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# drop-in replacement for autoconf 2.13's config.status, with features
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# borrowed from autoconf > 2.5, and additional features.
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from __future__ import print_function
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import logging
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import os
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import sys
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from optparse import OptionParser
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from mach.logging import LoggingManager
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from mozbuild.backend.configenvironment import ConfigEnvironment
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from mozbuild.backend.recursivemake import RecursiveMakeBackend
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from mozbuild.frontend.emitter import TreeMetadataEmitter
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from mozbuild.frontend.reader import BuildReader
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from mozbuild.mozinfo import write_mozinfo
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log_manager = LoggingManager()
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def config_status(topobjdir = '.', topsrcdir = '.',
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defines = [], non_global_defines = [], substs = [],
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files = [], headers = []):
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'''Main function, providing config.status functionality.
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Contrary to config.status, it doesn't use CONFIG_FILES or CONFIG_HEADERS
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variables, but like config.status from autoconf 2.6, single files may be
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generated with the --file and --header options. Several such options can
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be given to generate several files at the same time.
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Without the -n option, this program acts as config.status and considers
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the current directory as the top object directory, even when config.status
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is in a different directory. It will, however, treat the directory
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containing config.status as the top object directory with the -n option,
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while files given to the --file and --header arguments are considered
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relative to the current directory.
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The --recheck option, like with the original config.status, runs configure
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again, with the options given in the "ac_configure_args" subst.
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The options to this function are passed when creating the
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ConfigEnvironment, except for files and headers, which contain the list
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of files and headers to be generated by default. These lists, as well as
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the actual wrapper script around this function, are meant to be generated
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by configure. See build/autoconf/config.status.m4.
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Unlike config.status behaviour with CONFIG_FILES and CONFIG_HEADERS,
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but like config.status behaviour with --file and --header, providing
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files or headers on the command line inhibits the default generation of
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files when given headers and headers when given files.
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Unlike config.status, the FILE:TEMPLATE syntax is not supported for
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files and headers. The template is always the filename suffixed with
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'.in', in the corresponding directory under the top source directory.
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'''
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if 'CONFIG_FILES' in os.environ:
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raise Exception, 'Using the CONFIG_FILES environment variable is not supported. Use --file instead.'
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if 'CONFIG_HEADERS' in os.environ:
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raise Exception, 'Using the CONFIG_HEADERS environment variable is not supported. Use --header instead.'
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parser = OptionParser()
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parser.add_option('--recheck', dest='recheck', action='store_true',
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help='update config.status by reconfiguring in the same conditions')
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parser.add_option('--file', dest='files', metavar='FILE', action='append',
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help='instantiate the configuration file FILE')
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parser.add_option('--header', dest='headers', metavar='FILE', action='append',
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help='instantiate the configuration header FILE')
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parser.add_option('-v', '--verbose', dest='verbose', action='store_true',
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help='display verbose output')
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parser.add_option('-n', dest='not_topobjdir', action='store_true',
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help='do not consider current directory as top object directory')
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(options, args) = parser.parse_args()
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# Without -n, the current directory is meant to be the top object directory
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if not options.not_topobjdir:
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topobjdir = os.path.abspath('.')
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env = ConfigEnvironment(topsrcdir, topobjdir, defines=defines,
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non_global_defines=non_global_defines, substs=substs)
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# mozinfo.json only needs written if configure changes and configure always
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# passes this environment variable.
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if 'WRITE_MOZINFO' in os.environ:
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write_mozinfo(os.path.join(topobjdir, 'mozinfo.json'), env, os.environ)
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reader = BuildReader(env)
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emitter = TreeMetadataEmitter(env)
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backend = RecursiveMakeBackend(env)
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# This won't actually do anything because of the magic of generators.
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definitions = emitter.emit(reader.read_topsrcdir())
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if options.recheck:
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# Execute configure from the top object directory
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if not os.path.isabs(topsrcdir):
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topsrcdir = relpath(topsrcdir, topobjdir)
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os.chdir(topobjdir)
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os.execlp('sh', 'sh', '-c', ' '.join([os.path.join(topsrcdir, 'configure'), env.substs['ac_configure_args'], '--no-create', '--no-recursion']))
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if options.files:
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files = options.files
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headers = []
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if options.headers:
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headers = options.headers
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if not options.files:
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files = []
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# Default to display messages when giving --file or --headers on the
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# command line.
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log_level = logging.INFO
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if options.files or options.headers or options.verbose:
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log_level = logging.DEBUG
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log_manager.add_terminal_logging(level=log_level)
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log_manager.enable_unstructured()
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if not options.files and not options.headers:
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print('Reticulating splines...', file=sys.stderr)
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summary = backend.consume(definitions)
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for line in summary.summaries():
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print(line, file=sys.stderr)
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files = [os.path.join(topobjdir, f) for f in files]
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headers = [os.path.join(topobjdir, f) for f in headers]
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for file in files:
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env.create_config_file(file)
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for header in headers:
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env.create_config_header(header)
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