Source code for SCons.Script.SConsOptions

# MIT License
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import gettext
import optparse
import re
import shutil
import sys
import textwrap

import SCons.Node.FS
import SCons.Platform.virtualenv
import SCons.Warnings
from . import Main

no_hyphen_re = re.compile(r'(\s+|(?<=[\w!\"\'&.,?])-{2,}(?=\w))')
_ = gettext.gettext
OptionValueError = optparse.OptionValueError

diskcheck_all = SCons.Node.FS.diskcheck_types()

experimental_features = {'warp_speed', 'transporter', 'ninja', 'legacy_sched'}

[docs]def diskcheck_convert(value): if value is None: return [] if not SCons.Util.is_List(value): value = value.split(',') result = [] for v in value: v = v.lower() if v == 'all': result = diskcheck_all elif v == 'none': # Don't use an empty list here as that fails the normal check # to see if an optparse parser of if parser.argname: # Changed to ['none'] as diskcheck expects a list value result = ['none'] elif v in diskcheck_all: result.append(v) else: raise ValueError(v) return result
[docs]class SConsValues(optparse.Values): """Holder class for uniform access to SCons options. A SCons option value can originate three different ways: 1. set on the command line. 2. set in an SConscript file via :func:`~SCons.Script.Main.SetOption`. 3. the default setting (from the the ``op.add_option()`` calls in the :func:`Parser` function, below). The command line always overrides a value set in a SConscript file, which in turn always overrides default settings. Because we want to support user-specified options in the SConscript file itself, though, we may not know about all of the options when the command line is first parsed, so we can't make all the necessary precedence decisions at the time the option is configured. The solution implemented in this class is to keep these different sets of settings separate (command line, SConscript file, and default) and to override the :meth:`__getattr__` method to check them in turn. This allows the rest of the code to just fetch values as attributes of an instance of this class, without having to worry about where they came from (the scheme is similar to a ``ChainMap``). Note that not all command line options are settable from SConscript files, and the ones that are must be explicitly added to the :attr:`settable` list in this class, and optionally validated and coerced in the :meth:`set_option` method. """ def __init__(self, defaults) -> None: self.__defaults__ = defaults self.__SConscript_settings__ = {}
[docs] def __getattr__(self, attr): """Fetch an options value, respecting priority rules. This is a little tricky: since we're answering questions about outselves, we have avoid lookups that would send us into into infinite recursion, thus the ``__dict__`` stuff. """ try: return self.__dict__[attr] except KeyError: try: return self.__dict__['__SConscript_settings__'][attr] except KeyError: try: return getattr(self.__dict__['__defaults__'], attr) except KeyError as exc: # Need to respond with AttributeError because # deepcopy expects that if __setstate__ is not available. raise AttributeError(attr) from exc
# keep this list in sync with the SetOption doc in SCons/Script/Main.xml # search for UPDATE_SETOPTION_DOCS there. settable = [ 'clean', 'diskcheck', 'duplicate', 'experimental', 'hash_chunksize', 'hash_format', 'help', 'implicit_cache', 'implicit_deps_changed', 'implicit_deps_unchanged', 'max_drift', 'md5_chunksize', 'no_exec', 'no_progress', 'num_jobs', 'random', 'silent', 'stack_size', 'warn', ]
[docs] def set_option(self, name: str, value) -> None: """Sets an option *name* from an SConscript file. Vvalidation steps for known (that is, defined in SCons itself) options are in-line here. Validation should be along the same lines as for options processed from the command line - it's kind of a pain to have to duplicate. Project-defined options can specify callbacks for the command-line version, but will have no inbuilt validation here. It's up to the build system maintainer to make sure :func:`~SCons.Script.Main.SetOption` is being used correctly, we can't really do any better here. Raises: UserError: the option is not settable. """ if name not in self.settable: raise SCons.Errors.UserError( f"This option is not settable from an SConscript file: {name!r}" ) # the following are for options that need some extra processing if name == 'num_jobs': try: value = int(value) if value < 1: raise ValueError except ValueError: raise SCons.Errors.UserError("A positive integer is required: %s" % repr(value)) elif name == 'max_drift': try: value = int(value) except ValueError: raise SCons.Errors.UserError( "An integer is required: %s" % repr(value)) elif name == 'duplicate': try: value = str(value) except ValueError: raise SCons.Errors.UserError( "A string is required: %s" % repr(value)) if value not in SCons.Node.FS.Valid_Duplicates: raise SCons.Errors.UserError( "Not a valid duplication style: %s" % value ) # Set the duplicate style right away so it can affect linking # of SConscript files. SCons.Node.FS.set_duplicate(value) elif name == 'diskcheck': try: value = diskcheck_convert(value) except ValueError as v: raise SCons.Errors.UserError( "Not a valid diskcheck value: %s" % v) if 'diskcheck' not in self.__dict__: # No --diskcheck= option was specified on the command line. # Set this right away so it can affect the rest of the # file/Node lookups while processing the SConscript files. SCons.Node.FS.set_diskcheck(value) elif name == 'stack_size': try: value = int(value) except ValueError: raise SCons.Errors.UserError( "An integer is required: %s" % repr(value)) elif name in ('md5_chunksize', 'hash_chunksize'): try: value = int(value) except ValueError: raise SCons.Errors.UserError( "An integer is required: %s" % repr(value)) name = 'md5_chunksize' # for now, the old name is used elif name == 'warn': if SCons.Util.is_String(value): value = [value] value = self.__SConscript_settings__.get(name, []) + value SCons.Warnings.process_warn_strings(value) elif name == 'no_progress': SCons.Script.Main.progress_display.set_mode(False) elif name == 'experimental': if SCons.Util.is_String(value): value = [value] value = self.__SConscript_settings__.get(name, []) + value elif name in ('implicit_deps_changed', 'implicit_deps_unchanged'): if value: self.__SConscript_settings__['implicit_cache'] = True self.__SConscript_settings__[name] = value
[docs]class SConsOption(optparse.Option):
[docs] def convert_value(self, opt, value): if value is not None: if self.nargs in (1, '?'): return self.check_value(opt, value) return tuple([self.check_value(opt, v) for v in value])
[docs] def process(self, opt, value, values, parser): # First, convert the value(s) to the right type. Howl if any # value(s) are bogus. value = self.convert_value(opt, value) # And then take whatever action is expected of us. # This is a separate method to make life easier for # subclasses to add new actions. return self.take_action( self.action, self.dest, opt, value, values, parser)
[docs] def _check_nargs_optional(self): if self.nargs == '?' and self._short_opts: fmt = "option %s: nargs='?' is incompatible with short options" raise SCons.Errors.UserError(fmt % self._short_opts[0])
CHECK_METHODS = optparse.Option.CHECK_METHODS if CHECK_METHODS is None: CHECK_METHODS = [] CHECK_METHODS = CHECK_METHODS + [_check_nargs_optional] CONST_ACTIONS = optparse.Option.CONST_ACTIONS + optparse.Option.TYPED_ACTIONS
[docs]class SConsOptionGroup(optparse.OptionGroup): """A subclass for SCons-specific option groups. The only difference between this and the base class is that we print the group's help text flush left, underneath their own title but lined up with the normal "SCons Options". """
[docs] def format_help(self, formatter): """ Format an option group's help text. The title is dedented so it's flush with the "SCons Options" title we print at the top. """ formatter.dedent() result = formatter.format_heading(self.title) formatter.indent() # bypass OptionGroup format_help and call up to its parent result += optparse.OptionContainer.format_help(self, formatter) return result
[docs]class SConsBadOptionError(optparse.BadOptionError): """Exception used to indicate that invalid command line options were specified :ivar str opt_str: The offending option specified on command line which is not recognized :ivar OptionParser parser: The active argument parser """ def __init__(self, opt_str, parser=None) -> None: self.opt_str = opt_str self.parser = parser def __str__(self) -> str: return _("no such option: %s") % self.opt_str
[docs]class SConsOptionParser(optparse.OptionParser): preserve_unknown_options = False raise_exception_on_error = False
[docs] def error(self, msg): """Overridden OptionValueError exception handler.""" if self.raise_exception_on_error: raise SConsBadOptionError(msg, self) else: self.print_usage(sys.stderr) sys.stderr.write("SCons Error: %s\n" % msg) sys.exit(2)
[docs] def _process_long_opt(self, rargs, values): """ SCons-specific processing of long options. This is copied directly from the normal ``optparse._process_long_opt()`` method, except that, if configured to do so, we catch the exception thrown when an unknown option is encountered and just stick it back on the "leftover" arguments for later (re-)processing. This is because we may see the option definition later, while processing SConscript files. """ arg = rargs.pop(0) # Value explicitly attached to arg? Pretend it's the next argument. if "=" in arg: (opt, next_arg) = arg.split("=", 1) rargs.insert(0, next_arg) had_explicit_value = True else: opt = arg had_explicit_value = False try: if opt != self._match_long_opt(opt): raise optparse.BadOptionError( "'%s'. Did you mean '%s'?" % (opt, self._match_long_opt(opt)) ) except optparse.BadOptionError: if self.preserve_unknown_options: # SCons-specific: if requested, add unknown options to # the "leftover arguments" list for later processing. self.largs.append(arg) if had_explicit_value: # The unknown option will be re-processed later, # so undo the insertion of the explicit value. rargs.pop(0) return raise option = self._long_opt[opt] if option.takes_value(): nargs = option.nargs if nargs == '?': if had_explicit_value: value = rargs.pop(0) else: value = option.const elif len(rargs) < nargs: if nargs == 1: if not option.choices: self.error(_("%s option requires an argument") % opt) else: msg = _("%s option requires an argument " % opt) msg += _("(choose from %s)" % ', '.join(option.choices)) self.error(msg) else: self.error(_("%s option requires %d arguments") % (opt, nargs)) elif nargs == 1: value = rargs.pop(0) else: value = tuple(rargs[0:nargs]) del rargs[0:nargs] elif had_explicit_value: self.error(_("%s option does not take a value") % opt) else: value = None option.process(opt, value, values, self)
[docs] def reparse_local_options(self) -> None: """Re-parse the leftover command-line options. Leftover options are stored in ``self.largs``, so that any value overridden on the command line is immediately available if the user turns around and does a :func:`~SCons.Script.Main.GetOption` right away. We mimic the processing of the single args in the original OptionParser :func:`_process_args`, but here we allow exact matches for long-opts only (no partial argument names!). Otherwise there could be problems in :meth:`add_local_option` below. When called from there, we try to reparse the command-line arguments that 1. haven't been processed so far (`self.largs`), but 2. are possibly not added to the list of options yet. So, when we only have a value for ``--myargument`` so far, a command-line argument of ``--myarg=test`` would set it, per the behaviour of :func:`_match_long_opt`, which allows for partial matches of the option name, as long as the common prefix appears to be unique. This would lead to further confusion, because we might want to add another option ``--myarg`` later on (see issue #2929). """ rargs = [] largs_restore = [] # Loop over all remaining arguments skip = False for larg in self.largs: if skip: # Accept all remaining arguments as they are largs_restore.append(larg) else: if len(larg) > 2 and larg[0:2] == "--": # Check long option lopt = [larg] if "=" in larg: # Split into option and value lopt = larg.split("=", 1) if lopt[0] in self._long_opt: # Argument is already known rargs.append('='.join(lopt)) else: # Not known yet, so reject for now largs_restore.append('='.join(lopt)) else: if larg in("--", "-"): # Stop normal processing and don't # process the rest of the command-line opts largs_restore.append(larg) skip = True else: rargs.append(larg) # Parse the filtered list self.parse_args(rargs, self.values) # Restore the list of leftover arguments for the # next call of AddOption/add_local_option... self.largs = self.largs + largs_restore
[docs] def add_local_option(self, *args, **kw) -> SConsOption: """ Adds a local option to the parser. This is initiated by an :func:`~SCons.Script.Main.AddOption` call to add a user-defined command-line option. Add the option to a separate option group for the local options, creating the group if necessary. The keyword argument *settable* is recognized specially (and removed from *kw*). If true, the option is marked as modifiable; by default "local" (project-added) options are not eligible for for :func:`~SCons.Script.Main.SetOption` calls. .. versionchanged:: 4.8.0 Added special handling of *settable*. """ try: group = self.local_option_group except AttributeError: group = SConsOptionGroup(self, 'Local Options') group = self.add_option_group(group) self.local_option_group = group settable = kw.pop('settable') result = group.add_option(*args, **kw) if result: # The option was added successfully. We now have to add the # default value to our object that holds the default values # (so that an attempt to fetch the option's attribute will # yield the default value when not overridden) and then # we re-parse the leftover command-line options, so that # any value overridden on the command line is immediately # available if the user turns around and does a GetOption() # right away. setattr(self.values.__defaults__, result.dest, result.default) self.reparse_local_options() if settable: SConsValues.settable.append(result.dest) return result
[docs] def format_local_option_help(self, formatter=None, file=None): """Return the help for the project-level ("local") options. .. versionadded:: 4.6.0 """ if formatter is None: formatter = self.formatter try: group = self.local_option_group except AttributeError: return "" formatter.store_local_option_strings(self, group) for opt in group.option_list: strings = formatter.format_option_strings(opt) formatter.option_strings[opt] = strings # defeat our own cleverness, which starts out by dedenting formatter.indent() local_help = group.format_help(formatter) formatter.dedent() return local_help
[docs] def print_local_option_help(self, file=None): """Print help for just project-defined options. Writes to *file* (default stdout). .. versionadded:: 4.6.0 """ if file is None: file = sys.stdout file.write(self.format_local_option_help())
[docs]class SConsIndentedHelpFormatter(optparse.IndentedHelpFormatter):
[docs] def format_usage(self, usage) -> str: """ Formats the usage message. """ return "usage: %s\n" % usage
[docs] def format_heading(self, heading): """ Translates heading to "SCons Options" Heading of "Options" changed to "SCons Options." Unfortunately, we have to do this here, because those titles are hard-coded in the optparse calls. """ if heading == 'Options': heading = "SCons Options" return super().format_heading(heading)
[docs] def format_option(self, option): """ Customized option formatter. A copy of the normal ``optparse.IndentedHelpFormatter.format_option()`` method. This has been snarfed so we can modify text wrapping to our liking: * add our own regular expression that doesn't break on hyphens (so things like ``--no-print-directory`` don't get broken). * wrap the list of options themselves when it's too long (the ``wrapper.fill(opts)`` call below). * set the :attr:`subsequent_indent` when wrapping the :attr:`help_text`. The help for each option consists of two parts: * the opt strings and metavars e.g. ("-x", or "-fFILENAME, --file=FILENAME") * the user-supplied help string e.g. ("turn on expert mode", "read data from FILENAME") If possible, we write both of these on the same line:: -x turn on expert mode But if the opt string list is too long, we put the help string on a second line, indented to the same column it would start in if it fit on the first line:: -fFILENAME, --file=FILENAME read data from FILENAME """ result = [] opts = self.option_strings[option] opt_width = self.help_position - self.current_indent - 2 # SCons: pre-compute if we could combine opts and text on one line, # even if opts spills over opt_width. Saves some lines. # Note: check is currently disabled and this removed from docstring: # * if it would all fit on one line even if opts are long, don't break. combine_anyway = False if help_text = self.expand_default(option) # if len(opts) > opt_width and len(opts) + len(help_text) + 2 <= self.width: # combine_anyway = True if len(opts) > opt_width and not combine_anyway: # SCons: wrap options if needed wrapper = textwrap.TextWrapper( width=self.width, initial_indent=' ', subsequent_indent=' ' ) wrapper.wordsep_re = no_hyphen_re opts = wrapper.fill(opts) + '\n' indent_first = self.help_position else: # start help on same line as opts opts = "%*s%-*s " % (self.current_indent, "", opt_width, opts) indent_first = 0 result.append(opts) if # this is now done above in the pre-check. # help_text = self.expand_default(option) # SCons: indent every line of the help text but the first. wrapper = textwrap.TextWrapper( width=self.help_width, subsequent_indent=' ' ) wrapper.wordsep_re = no_hyphen_re help_lines = wrapper.wrap(help_text) result.append("%*s%s\n" % (indent_first, "", help_lines[0])) for line in help_lines[1:]: result.append("%*s%s\n" % (self.help_position, "", line)) elif opts[-1] != "\n": result.append("\n") return "".join(result)
[docs] def store_local_option_strings(self, parser, group): """Local-only version of store_option_strings. We need to replicate this so the formatter will be set up properly if we didn't go through the "normal" :math:`~optparse.HelpFormatter.store_option_strings`. .. versionadded:: 4.6.0 """ self.indent() max_len = 0 for opt in group.option_list: strings = self.format_option_strings(opt) self.option_strings[opt] = strings max_len = max(max_len, len(strings) + self.current_indent) self.dedent() self.help_position = min(max_len + 2, self.max_help_position) self.help_width = max(self.width - self.help_position, 11)
[docs]def Parser(version): """Returns a parser object initialized with the standard SCons options. Add options in the order we want them to show up in the ``-H`` help text, basically alphabetical. For readability, Each :meth:`~optparse.OptionContainer.add_option` call should have a consistent format:: op.add_option( "-L", "--long-option-name", nargs=1, type="string", dest="long_option_name", default='foo', action="callback", callback=opt_long_option, help="help text goes here", metavar="VAR" ) Even though the :mod:`optparse` module constructs reasonable default destination names from the long option names, we're going to be explicit about each one for easier readability and so this code will at least show up when grepping the source for option attribute names, or otherwise browsing the source code. """ columns, lines = shutil.get_terminal_size() formatter = SConsIndentedHelpFormatter(max_help_position=30, width=columns) op = SConsOptionParser( option_class=SConsOption, add_help_option=False, formatter=formatter, usage="usage: scons [OPTIONS] [VARIABLES] [TARGETS]", ) op.preserve_unknown_options = True op.version = version # options ignored for compatibility def opt_ignore(option, opt, value, parser) -> None: sys.stderr.write("Warning: ignoring %s option\n" % opt) op.add_option("-b", "-d", "-e", "-m", "-S", "-t", "-w", "--environment-overrides", "--no-keep-going", "--no-print-directory", "--print-directory", "--stop", "--touch", action="callback", callback=opt_ignore, help=SUPPRESS_HELP) op.add_option('-c', '--clean', '--remove', dest="clean", default=False, action="store_true", help="Remove specified targets and dependencies") op.add_option('-C', '--directory', nargs=1, type="string", dest="directory", default=[], action="append", help="Change to DIR before doing anything", metavar="DIR") op.add_option('--cache-debug', nargs=1, dest="cache_debug", default=None, action="store", help="Print CacheDir debug info to FILE", metavar="FILE") op.add_option('--cache-disable', '--no-cache', dest='cache_disable', default=False, action="store_true", help="Do not retrieve built targets from CacheDir") op.add_option('--cache-force', '--cache-populate', dest='cache_force', default=False, action="store_true", help="Copy already-built targets into the CacheDir") op.add_option('--cache-readonly', dest='cache_readonly', default=False, action="store_true", help="Do not update CacheDir with built targets") op.add_option('--cache-show', dest='cache_show', default=False, action="store_true", help="Print build actions for files from CacheDir") def opt_invalid(group, value, options): """report an invalid option from a group""" errmsg = "`%s' is not a valid %s option type, try:\n" % (value, group) return errmsg + " %s" % ", ".join(options) def opt_invalid_rm(group, value, msg): """report an invalid option from a group: recognized but removed""" errmsg = "`%s' is not a valid %s option type " % (value, group) return errmsg + msg config_options = ["auto", "force", "cache"] opt_config_help = "Controls Configure subsystem [%s]" \ % ", ".join(config_options) op.add_option('--config', nargs=1, choices=config_options, dest="config", default="auto", help=opt_config_help, metavar="MODE") op.add_option('-D', dest="climb_up", default=None, action="store_const", const=2, help="Search up directory tree for SConstruct, " "build all Default() targets") deprecated_debug_options = {} removed_debug_options = { "dtree": '; please use --tree=derived instead', "nomemoizer": '; there is no replacement', "stree": '; please use --tree=all,status instead', "tree": '; please use --tree=all instead', } debug_options = ["count", "duplicate", "explain", "findlibs", "includes", "memoizer", "memory", "objects", "pdb", "prepare", "presub", "stacktrace", "time", "action-timestamps", "json", "sconscript"] def opt_debug(option, opt, value__, parser, debug_options=debug_options, deprecated_debug_options=deprecated_debug_options, removed_debug_options=removed_debug_options): for value in value__.split(','): if value in debug_options: parser.values.debug.append(value) elif value in deprecated_debug_options: parser.values.debug.append(value) try: parser.values.delayed_warnings except AttributeError: parser.values.delayed_warnings = [] msg = deprecated_debug_options[value] w = "The --debug=%s option is deprecated%s." % (value, msg) t = (SCons.Warnings.DeprecatedDebugOptionsWarning, w) parser.values.delayed_warnings.append(t) elif value in removed_debug_options: msg = removed_debug_options[value] raise OptionValueError(opt_invalid_rm('debug', value, msg)) else: raise OptionValueError(opt_invalid( 'debug', value, debug_options)) opt_debug_help = "Print various types of debugging information [%s]" \ % ", ".join(debug_options) op.add_option('--debug', nargs=1, type="string", dest="debug", default=[], action="callback", callback=opt_debug, help=opt_debug_help, metavar="TYPE") def opt_diskcheck(option, opt, value, parser): try: diskcheck_value = diskcheck_convert(value) except ValueError as e: raise OptionValueError("`%s' is not a valid diskcheck type" % e) setattr(parser.values, option.dest, diskcheck_value) op.add_option('--diskcheck', nargs=1, type="string", dest='diskcheck', default=None, action="callback", callback=opt_diskcheck, help="Enable specific on-disk checks", metavar="TYPE") def opt_duplicate(option, opt, value, parser): if value not in SCons.Node.FS.Valid_Duplicates: raise OptionValueError(opt_invalid('duplication', value, SCons.Node.FS.Valid_Duplicates)) setattr(parser.values, option.dest, value) # Set the duplicate style right away so it can affect linking # of SConscript files. SCons.Node.FS.set_duplicate(value) opt_duplicate_help = "Set the preferred duplication methods [%s]" \ % ", ".join(SCons.Node.FS.Valid_Duplicates) op.add_option('--duplicate', nargs=1, type="string", dest="duplicate", default='hard-soft-copy', action="callback", callback=opt_duplicate, help=opt_duplicate_help) if not SCons.Platform.virtualenv.virtualenv_enabled_by_default: op.add_option('--enable-virtualenv', dest="enable_virtualenv", action="store_true", help="Import certain virtualenv variables to SCons") def experimental_callback(option, opt, value, parser): experimental = getattr(parser.values, option.dest) if ',' in value: value = value.split(',') else: value = [value] for v in value: if v == 'none': experimental = set() elif v == 'all': experimental = experimental_features elif v not in experimental_features: raise OptionValueError( "option --experimental: invalid choice: '%s' " "(choose from 'all','none',%s)" % (v, ','.join(["'%s'" % e for e in sorted(experimental_features)])) ) else: experimental |= {v} setattr(parser.values, option.dest, experimental) op.add_option('--experimental', dest='experimental', action='callback', default=set(), # empty set type='str', # choices=experimental_options+experimental_features, callback=experimental_callback, help='Enable experimental features') op.add_option('-f', '--file', '--makefile', '--sconstruct', nargs=1, type="string", dest="file", default=[], action="append", help="Read FILE as the top-level SConstruct file") op.add_option('-h', '--help', dest="help", default=False, action="store_true", help="Print defined help message, or this one") op.add_option("-H", "--help-options", action="help", help="Print this message and exit") def warn_md5_chunksize_deprecated(option, opt, value, parser) -> None: if opt == '--md5-chunksize': SCons.Warnings.warn(SCons.Warnings.DeprecatedOptionsWarning, f"Option {opt} is deprecated. " "Use --hash-chunksize instead.") setattr(parser.values, option.dest, value) op.add_option('--hash-chunksize', '--md5-chunksize', nargs=1, type="int", dest='md5_chunksize', default=SCons.Node.FS.File.hash_chunksize, action="callback", help="Set chunk-size for hash signature computation to N kilobytes", callback=warn_md5_chunksize_deprecated, metavar="N") op.add_option('--hash-format', dest='hash_format', action='store', help='Hash format [md5, sha1, sha256, etc].') op.add_option('-i', '--ignore-errors', dest='ignore_errors', default=False, action="store_true", help="Ignore errors from build actions") op.add_option('-I', '--include-dir', nargs=1, dest='include_dir', default=[], action="append", help="Search DIR for imported Python modules", metavar="DIR") op.add_option('--ignore-virtualenv', dest="ignore_virtualenv", action="store_true", help="Do not import virtualenv variables to SCons") op.add_option('--implicit-cache', dest='implicit_cache', default=False, action="store_true", help="Cache implicit dependencies") def opt_implicit_deps(option, opt, value, parser) -> None: setattr(parser.values, 'implicit_cache', True) setattr(parser.values, option.dest, True) op.add_option('--implicit-deps-changed', dest="implicit_deps_changed", default=False, action="callback", callback=opt_implicit_deps, help="Ignore cached implicit dependencies") op.add_option('--implicit-deps-unchanged', dest="implicit_deps_unchanged", default=False, action="callback", callback=opt_implicit_deps, help="Ignore changes in implicit dependencies") op.add_option('--interact', '--interactive', dest='interactive', default=False, action="store_true", help="Run in interactive mode") op.add_option('-j', '--jobs', nargs=1, type="int", dest="num_jobs", default=1, action="store", help="Allow N jobs at once", metavar="N") op.add_option('-k', '--keep-going', dest='keep_going', default=False, action="store_true", help="Keep going when a target can't be made") op.add_option('--max-drift', nargs=1, type="int", dest='max_drift', default=SCons.Node.FS.default_max_drift, action="store", help="Set maximum system clock drift to N seconds", metavar="N") op.add_option('-n', '--no-exec', '--just-print', '--dry-run', '--recon', dest='no_exec', default=False, action="store_true", help="Don't build; just print commands") op.add_option('--no-site-dir', dest='site_dir', action="store_false", help="Don't search or use the usual site_scons dir") op.add_option('--profile', nargs=1, dest="profile_file", default=None, action="store", help="Profile SCons and put results in FILE", metavar="FILE") op.add_option('-q', '--question', dest="question", default=False, action="store_true", help="Don't build; exit status says if up to date") op.add_option('-Q', dest='no_progress', default=False, action="store_true", help="Suppress \"Reading/Building\" progress messages") op.add_option('--random', dest="random", default=False, action="store_true", help="Build dependencies in random order") op.add_option('-s', '--silent', '--quiet', dest="silent", default=False, action="store_true", help="Don't print commands") op.add_option('--site-dir', nargs=1, dest='site_dir', default=None, action="store", help="Use DIR instead of the usual site_scons dir", metavar="DIR") op.add_option('--stack-size', nargs=1, type="int", dest='stack_size', action="store", help="Set the stack size of the threads used to run jobs to N kilobytes", metavar="N") op.add_option('--taskmastertrace', nargs=1, dest="taskmastertrace_file", default=None, action="store", help="Trace Node evaluation to FILE", metavar="FILE") tree_options = ["all", "derived", "prune", "status", "linedraw"] def opt_tree(option, opt, value, parser, tree_options=tree_options): tp = Main.TreePrinter() for o in value.split(','): if o == 'all': tp.derived = False elif o == 'derived': tp.derived = True elif o == 'prune': tp.prune = True elif o == 'status': tp.status = True elif o == 'linedraw': tp.sLineDraw = True else: raise OptionValueError(opt_invalid('--tree', o, tree_options)) parser.values.tree_printers.append(tp) opt_tree_help = "Print a dependency tree in various formats [%s]" \ % ", ".join(tree_options) op.add_option('--tree', nargs=1, type="string", dest="tree_printers", default=[], action="callback", callback=opt_tree, help=opt_tree_help, metavar="OPTIONS") op.add_option('-u', '--up', '--search-up', dest="climb_up", default=0, action="store_const", const=1, help="Search up directory tree for SConstruct, " "build targets at or below current directory") op.add_option('-U', dest="climb_up", default=0, action="store_const", const=3, help="Search up directory tree for SConstruct, " "build Default() targets from local SConscript") def opt_version(option, opt, value, parser) -> None: sys.stdout.write(parser.version + '\n') sys.exit(0) op.add_option("-v", "--version", action="callback", callback=opt_version, help="Print the SCons version number and exit") def opt_warn(option, opt, value, parser, tree_options=tree_options) -> None: if SCons.Util.is_String(value): value = value.split(',') parser.values.warn.extend(value) op.add_option('--warn', '--warning', nargs=1, type="string", dest="warn", default=[], action="callback", callback=opt_warn, help="Enable or disable warnings", metavar="WARNING-SPEC") op.add_option('-Y', '--repository', '--srcdir', nargs=1, dest="repository", default=[], action="append", help="Search REPOSITORY for source and target files") # Options from Make and Cons classic that we do not yet support, # but which we may support someday and whose (potential) meanings # we don't want to change. These all get a "the -X option is not # yet implemented" message and don't show up in the help output. def opt_not_yet(option, opt, value, parser) -> None: msg = "Warning: the %s option is not yet implemented\n" % opt sys.stderr.write(msg) op.add_option('-l', '--load-average', '--max-load', nargs=1, type="float", dest="load_average", default=0, action="callback", callback=opt_not_yet, # action="store", # help="Don't start multiple jobs unless load is below " # "LOAD-AVERAGE" help=SUPPRESS_HELP) op.add_option('--list-actions', dest="list_actions", action="callback", callback=opt_not_yet, # help="Don't build; list files and build actions" help=SUPPRESS_HELP) op.add_option('--list-derived', dest="list_derived", action="callback", callback=opt_not_yet, # help="Don't build; list files that would be built" help=SUPPRESS_HELP) op.add_option('--list-where', dest="list_where", action="callback", callback=opt_not_yet, # help="Don't build; list files and where defined" help=SUPPRESS_HELP) op.add_option('-o', '--old-file', '--assume-old', nargs=1, type="string", dest="old_file", default=[], action="callback", callback=opt_not_yet, # action="append", # help = "Consider FILE to be old; don't rebuild it" help=SUPPRESS_HELP) op.add_option('--override', nargs=1, type="string", action="callback", callback=opt_not_yet, dest="override", # help="Override variables as specified in FILE" help=SUPPRESS_HELP) op.add_option('-p', action="callback", callback=opt_not_yet, dest="p", # help="Print internal environments/objects" help=SUPPRESS_HELP) op.add_option('-r', '-R', '--no-builtin-rules', '--no-builtin-variables', action="callback", callback=opt_not_yet, dest="no_builtin_rules", # help="Clear default environments and variables" help=SUPPRESS_HELP) op.add_option('--write-filenames', nargs=1, type="string", dest="write_filenames", action="callback", callback=opt_not_yet, # help="Write all filenames examined into FILE" help=SUPPRESS_HELP) op.add_option('-W', '--new-file', '--assume-new', '--what-if', nargs=1, type="string", dest="new_file", action="callback", callback=opt_not_yet, # help="Consider FILE to be changed" help=SUPPRESS_HELP) op.add_option('--warn-undefined-variables', dest="warn_undefined_variables", action="callback", callback=opt_not_yet, # help="Warn when an undefined variable is referenced" help=SUPPRESS_HELP) return op
# Local Variables: # tab-width:4 # indent-tabs-mode:nil # End: # vim: set expandtab tabstop=4 shiftwidth=4: