Squashed 'waflib/' content from commit 982416b

git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830

1 files changed, 342 insertions, 0 deletions

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