mirror of
https://gitlab.com/ita1024/waf.git
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360 lines
12 KiB
Python
360 lines
12 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Scott Newton, 2005 (scottn)
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# Thomas Nagy, 2006-2018 (ita)
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"""
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Support for waf command-line options
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Provides default and command-line options, as well the command
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that reads the ``options`` wscript function.
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"""
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import os, tempfile, optparse, sys, re
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from waflib import Logs, Utils, Context, Errors
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options = optparse.Values()
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"""
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A global dictionary representing user-provided command-line options::
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$ waf --foo=bar
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"""
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commands = []
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"""
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List of commands to execute extracted from the command-line. This list
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is consumed during the execution by :py:func:`waflib.Scripting.run_commands`.
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"""
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envvars = []
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"""
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List of environment variable declarations placed after the Waf executable name.
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These are detected by searching for "=" in the remaining arguments.
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You probably do not want to use this.
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"""
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lockfile = os.environ.get('WAFLOCK', '.lock-waf_%s_build' % sys.platform)
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"""
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Name of the lock file that marks a project as configured
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"""
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class opt_parser(optparse.OptionParser):
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"""
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Command-line options parser.
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"""
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def __init__(self, ctx, allow_unknown=False):
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optparse.OptionParser.__init__(self, conflict_handler='resolve', add_help_option=False,
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version='%s %s (%s)' % (Context.WAFNAME, Context.WAFVERSION, Context.WAFREVISION))
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self.formatter.width = Logs.get_term_cols()
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self.ctx = ctx
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self.allow_unknown = allow_unknown
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def _process_args(self, largs, rargs, values):
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"""
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Custom _process_args to allow unknown options according to the allow_unknown status
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"""
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while rargs:
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try:
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optparse.OptionParser._process_args(self,largs,rargs,values)
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except (optparse.BadOptionError, optparse.AmbiguousOptionError) as e:
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if self.allow_unknown:
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largs.append(e.opt_str)
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else:
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self.error(str(e))
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def _process_long_opt(self, rargs, values):
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# --custom-option=-ftxyz is interpreted as -f -t... see #2280
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if self.allow_unknown:
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back = [] + rargs
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try:
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optparse.OptionParser._process_long_opt(self, rargs, values)
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except optparse.BadOptionError:
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while rargs:
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rargs.pop()
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rargs.extend(back)
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rargs.pop(0)
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raise
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else:
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optparse.OptionParser._process_long_opt(self, rargs, values)
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def print_usage(self, file=None):
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return self.print_help(file)
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def get_usage(self):
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"""
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Builds the message to print on ``waf --help``
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:rtype: string
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"""
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cmds_str = {}
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for cls in Context.classes:
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if not cls.cmd or cls.cmd == 'options' or cls.cmd.startswith( '_' ):
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continue
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s = cls.__doc__ or ''
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cmds_str[cls.cmd] = s
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if Context.g_module:
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for (k, v) in Context.g_module.__dict__.items():
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if k in ('options', 'init', 'shutdown'):
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continue
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if type(v) is type(Context.create_context):
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if v.__doc__ and not k.startswith('_'):
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cmds_str[k] = v.__doc__
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just = 0
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for k in cmds_str:
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just = max(just, len(k))
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lst = [' %s: %s' % (k.ljust(just), v) for (k, v) in cmds_str.items()]
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lst.sort()
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ret = '\n'.join(lst)
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return '''%s [commands] [options]
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Main commands (example: ./%s build -j4)
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%s
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''' % (Context.WAFNAME, Context.WAFNAME, ret)
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class OptionsContext(Context.Context):
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"""
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Collects custom options from wscript files and parses the command line.
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Sets the global :py:const:`waflib.Options.commands` and :py:const:`waflib.Options.options` values.
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"""
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cmd = 'options'
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fun = 'options'
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def __init__(self, **kw):
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super(OptionsContext, self).__init__(**kw)
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self.parser = opt_parser(self)
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"""Instance of :py:class:`waflib.Options.opt_parser`"""
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self.option_groups = {}
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jobs = self.jobs()
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p = self.add_option
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color = os.environ.get('NOCOLOR', '') and 'no' or 'auto'
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if os.environ.get('CLICOLOR', '') == '0':
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color = 'no'
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elif os.environ.get('CLICOLOR_FORCE', '') == '1':
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color = 'yes'
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p('-c', '--color', dest='colors', default=color, action='store', help='whether to use colors (yes/no/auto) [default: auto]', choices=('yes', 'no', 'auto'))
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p('-j', '--jobs', dest='jobs', default=jobs, type='int', help='amount of parallel jobs (%r)' % jobs)
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p('-k', '--keep', dest='keep', default=0, action='count', help='continue despite errors (-kk to try harder)')
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p('-v', '--verbose', dest='verbose', default=0, action='count', help='verbosity level -v -vv or -vvv [default: 0]')
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p('--zones', dest='zones', default='', action='store', help='debugging zones (task_gen, deps, tasks, etc)')
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p('--profile', dest='profile', default=0, action='store_true', help=optparse.SUPPRESS_HELP)
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p('--pdb', dest='pdb', default=0, action='store_true', help=optparse.SUPPRESS_HELP)
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p('-h', '--help', dest='whelp', default=0, action='store_true', help="show this help message and exit")
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gr = self.add_option_group('Configuration options')
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self.option_groups['configure options'] = gr
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gr.add_option('-o', '--out', action='store', default='', help='build dir for the project', dest='out')
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gr.add_option('-t', '--top', action='store', default='', help='src dir for the project', dest='top')
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gr.add_option('--no-lock-in-run', action='store_true', default=os.environ.get('NO_LOCK_IN_RUN', ''), help=optparse.SUPPRESS_HELP, dest='no_lock_in_run')
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gr.add_option('--no-lock-in-out', action='store_true', default=os.environ.get('NO_LOCK_IN_OUT', ''), help=optparse.SUPPRESS_HELP, dest='no_lock_in_out')
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gr.add_option('--no-lock-in-top', action='store_true', default=os.environ.get('NO_LOCK_IN_TOP', ''), help=optparse.SUPPRESS_HELP, dest='no_lock_in_top')
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default_prefix = getattr(Context.g_module, 'default_prefix', os.environ.get('PREFIX'))
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if not default_prefix:
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if Utils.unversioned_sys_platform() == 'win32':
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d = tempfile.gettempdir()
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default_prefix = d[0].upper() + d[1:]
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# win32 preserves the case, but gettempdir does not
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else:
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default_prefix = '/usr/local/'
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gr.add_option('--prefix', dest='prefix', default=default_prefix, help='installation prefix [default: %r]' % default_prefix)
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gr.add_option('--bindir', dest='bindir', help='bindir')
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gr.add_option('--libdir', dest='libdir', help='libdir')
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gr = self.add_option_group('Build and installation options')
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self.option_groups['build and install options'] = gr
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gr.add_option('-p', '--progress', dest='progress_bar', default=0, action='count', help= '-p: progress bar; -pp: ide output')
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gr.add_option('--targets', dest='targets', default='', action='store', help='task generators, e.g. "target1,target2"')
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gr = self.add_option_group('Step options')
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self.option_groups['step options'] = gr
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gr.add_option('--files', dest='files', default='', action='store', help='files to process, by regexp, e.g. "*/main.c,*/test/main.o"')
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default_destdir = os.environ.get('DESTDIR', '')
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gr = self.add_option_group('Installation and uninstallation options')
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self.option_groups['install/uninstall options'] = gr
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gr.add_option('--destdir', help='installation root [default: %r]' % default_destdir, default=default_destdir, dest='destdir')
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gr.add_option('-f', '--force', dest='force', default=False, action='store_true', help='force file installation')
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gr.add_option('--distcheck-args', metavar='ARGS', help='arguments to pass to distcheck', default=None, action='store')
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def jobs(self):
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"""
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Finds the optimal amount of cpu cores to use for parallel jobs.
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At runtime the options can be obtained from :py:const:`waflib.Options.options` ::
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from waflib.Options import options
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njobs = options.jobs
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:return: the amount of cpu cores
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:rtype: int
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"""
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count = int(os.environ.get('JOBS', 0))
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if count < 1:
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if 'NUMBER_OF_PROCESSORS' in os.environ:
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# on Windows, use the NUMBER_OF_PROCESSORS environment variable
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count = int(os.environ.get('NUMBER_OF_PROCESSORS', 1))
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else:
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# on everything else, first try the POSIX sysconf values
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if hasattr(os, 'sysconf_names'):
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if 'SC_NPROCESSORS_ONLN' in os.sysconf_names:
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count = int(os.sysconf('SC_NPROCESSORS_ONLN'))
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elif 'SC_NPROCESSORS_CONF' in os.sysconf_names:
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count = int(os.sysconf('SC_NPROCESSORS_CONF'))
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if not count and os.name not in ('nt', 'java'):
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try:
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tmp = self.cmd_and_log(['sysctl', '-n', 'hw.ncpu'], quiet=0)
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except Errors.WafError:
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pass
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else:
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if re.match('^[0-9]+$', tmp):
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count = int(tmp)
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if count < 1:
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count = 1
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elif count > 1024:
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count = 1024
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return count
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def add_option(self, *k, **kw):
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"""
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Wraps ``optparse.add_option``::
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def options(ctx):
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ctx.add_option('-u', '--use', dest='use', default=False,
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action='store_true', help='a boolean option')
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:rtype: optparse option object
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"""
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return self.parser.add_option(*k, **kw)
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def add_option_group(self, *k, **kw):
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"""
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Wraps ``optparse.add_option_group``::
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def options(ctx):
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gr = ctx.add_option_group('some options')
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gr.add_option('-u', '--use', dest='use', default=False, action='store_true')
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:rtype: optparse option group object
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"""
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try:
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gr = self.option_groups[k[0]]
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except KeyError:
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gr = self.parser.add_option_group(*k, **kw)
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self.option_groups[k[0]] = gr
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return gr
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def get_option_group(self, opt_str):
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"""
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Wraps ``optparse.get_option_group``::
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def options(ctx):
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gr = ctx.get_option_group('configure options')
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gr.add_option('-o', '--out', action='store', default='',
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help='build dir for the project', dest='out')
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:rtype: optparse option group object
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"""
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try:
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return self.option_groups[opt_str]
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except KeyError:
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for group in self.parser.option_groups:
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if group.title == opt_str:
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return group
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return None
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def sanitize_path(self, path, cwd=None):
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if not cwd:
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cwd = Context.launch_dir
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p = os.path.expanduser(path)
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p = os.path.join(cwd, p)
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p = os.path.normpath(p)
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p = os.path.abspath(p)
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return p
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def parse_cmd_args(self, _args=None, cwd=None, allow_unknown=False):
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"""
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Just parse the arguments
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"""
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self.parser.allow_unknown = allow_unknown
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(options, leftover_args) = self.parser.parse_args(args=_args)
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envvars = []
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commands = []
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for arg in leftover_args:
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if '=' in arg:
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envvars.append(arg)
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elif arg != 'options':
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commands.append(arg)
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if options.jobs < 1:
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options.jobs = 1
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for name in 'top out destdir prefix bindir libdir'.split():
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# those paths are usually expanded from Context.launch_dir
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if getattr(options, name, None):
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path = self.sanitize_path(getattr(options, name), cwd)
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setattr(options, name, path)
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return options, commands, envvars
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def init_module_vars(self, arg_options, arg_commands, arg_envvars):
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options.__dict__.clear()
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del commands[:]
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del envvars[:]
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options.__dict__.update(arg_options.__dict__)
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commands.extend(arg_commands)
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envvars.extend(arg_envvars)
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for var in envvars:
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(name, value) = var.split('=', 1)
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os.environ[name.strip()] = value
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def init_logs(self, options, commands, envvars):
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Logs.verbose = options.verbose
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if options.verbose >= 1:
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self.load('errcheck')
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colors = {'yes' : 2, 'auto' : 1, 'no' : 0}[options.colors]
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Logs.enable_colors(colors)
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if options.zones:
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Logs.zones = options.zones.split(',')
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if not Logs.verbose:
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Logs.verbose = 1
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elif Logs.verbose > 0:
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Logs.zones = ['runner']
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if Logs.verbose > 2:
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Logs.zones = ['*']
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def parse_args(self, _args=None):
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"""
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Parses arguments from a list which is not necessarily the command-line.
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Initializes the module variables options, commands and envvars
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If help is requested, prints it and exit the application
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:param _args: arguments
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:type _args: list of strings
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"""
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options, commands, envvars = self.parse_cmd_args()
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self.init_logs(options, commands, envvars)
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self.init_module_vars(options, commands, envvars)
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def execute(self):
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"""
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See :py:func:`waflib.Context.Context.execute`
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"""
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super(OptionsContext, self).execute()
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self.parse_args()
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Utils.alloc_process_pool(options.jobs)
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