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import os |
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from argparse import ArgumentParser, Action, SUPPRESS, RawDescriptionHelpFormatter |
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from . import Options |
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class ParseDirectivesAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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old_directives = dict(getattr(namespace, self.dest, |
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Options.get_directive_defaults())) |
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directives = Options.parse_directive_list( |
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values, relaxed_bool=True, current_settings=old_directives) |
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setattr(namespace, self.dest, directives) |
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class ParseOptionsAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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options = dict(getattr(namespace, self.dest, {})) |
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for opt in values.split(','): |
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if '=' in opt: |
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n, v = opt.split('=', 1) |
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v = v.lower() not in ('false', 'f', '0', 'no') |
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else: |
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n, v = opt, True |
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options[n] = v |
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setattr(namespace, self.dest, options) |
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class ParseCompileTimeEnvAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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old_env = dict(getattr(namespace, self.dest, {})) |
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new_env = Options.parse_compile_time_env(values, current_settings=old_env) |
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setattr(namespace, self.dest, new_env) |
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class ActivateAllWarningsAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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directives = getattr(namespace, 'compiler_directives', {}) |
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directives.update(Options.extra_warnings) |
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namespace.compiler_directives = directives |
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class SetLenientAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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namespace.error_on_unknown_names = False |
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namespace.error_on_uninitialized = False |
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class SetGDBDebugAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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namespace.gdb_debug = True |
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namespace.output_dir = os.curdir |
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class SetGDBDebugOutputAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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namespace.gdb_debug = True |
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namespace.output_dir = values |
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class SetAnnotateCoverageAction(Action): |
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def __call__(self, parser, namespace, values, option_string=None): |
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namespace.annotate = True |
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namespace.annotate_coverage_xml = values |
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def create_cython_argparser(): |
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description = "Cython (https://cython.org/) is a compiler for code written in the "\ |
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"Cython language. Cython is based on Pyrex by Greg Ewing." |
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parser = ArgumentParser( |
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description=description, |
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argument_default=SUPPRESS, |
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formatter_class=RawDescriptionHelpFormatter, |
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epilog="""\ |
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Environment variables: |
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CYTHON_CACHE_DIR: the base directory containing Cython's caches.""" |
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) |
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parser.add_argument("-V", "--version", dest='show_version', action='store_const', const=1, |
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help='Display version number of cython compiler') |
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parser.add_argument("-l", "--create-listing", dest='use_listing_file', action='store_const', const=1, |
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help='Write error messages to a listing file') |
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parser.add_argument("-I", "--include-dir", dest='include_path', action='append', |
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help='Search for include files in named directory ' |
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'(multiple include directories are allowed).') |
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parser.add_argument("-o", "--output-file", dest='output_file', action='store', type=str, |
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help='Specify name of generated C file') |
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parser.add_argument("-t", "--timestamps", dest='timestamps', action='store_const', const=1, |
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help='Only compile newer source files') |
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parser.add_argument("-f", "--force", dest='timestamps', action='store_const', const=0, |
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help='Compile all source files (overrides implied -t)') |
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parser.add_argument("-v", "--verbose", dest='verbose', action='count', |
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help='Be verbose, print file names on multiple compilation') |
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parser.add_argument("-p", "--embed-positions", dest='embed_pos_in_docstring', action='store_const', const=1, |
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help='If specified, the positions in Cython files of each ' |
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'function definition is embedded in its docstring.') |
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parser.add_argument("--cleanup", dest='generate_cleanup_code', action='store', type=int, |
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help='Release interned objects on python exit, for memory debugging. ' |
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'Level indicates aggressiveness, default 0 releases nothing.') |
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parser.add_argument("--cache", dest='cache', action='store_true', |
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help='Enables Cython compilation cache.') |
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parser.add_argument("-w", "--working", dest='working_path', action='store', type=str, |
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help='Sets the working directory for Cython (the directory modules are searched from)') |
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parser.add_argument("--gdb", action=SetGDBDebugAction, nargs=0, |
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help='Output debug information for cygdb') |
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parser.add_argument("--gdb-outdir", action=SetGDBDebugOutputAction, type=str, |
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help='Specify gdb debug information output directory. Implies --gdb.') |
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parser.add_argument("-D", "--no-docstrings", dest='docstrings', action='store_false', |
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help='Strip docstrings from the compiled module.') |
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parser.add_argument('-a', '--annotate', action='store_const', const='default', dest='annotate', |
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help='Produce a colorized HTML version of the source.') |
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parser.add_argument('--annotate-fullc', action='store_const', const='fullc', dest='annotate', |
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help='Produce a colorized HTML version of the source ' |
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'which includes entire generated C/C++-code.') |
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parser.add_argument("--annotate-coverage", dest='annotate_coverage_xml', action=SetAnnotateCoverageAction, type=str, |
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help='Annotate and include coverage information from cov.xml.') |
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parser.add_argument("--line-directives", dest='emit_linenums', action='store_true', |
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help='Produce #line directives pointing to the .pyx source') |
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parser.add_argument("-+", "--cplus", dest='cplus', action='store_const', const=1, |
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help='Output a C++ rather than C file.') |
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parser.add_argument('--embed', action='store_const', const='main', |
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help='Generate a main() function that embeds the Python interpreter. ' |
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'Pass --embed=<method_name> for a name other than main().') |
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parser.add_argument('-2', dest='language_level', action='store_const', const=2, |
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help='Compile based on Python-2 syntax and code semantics.') |
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parser.add_argument('-3', dest='language_level', action='store_const', const=3, |
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help='Compile based on Python-3 syntax and code semantics.') |
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parser.add_argument('--3str', dest='language_level', action='store_const', const='3', |
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help='Compile based on Python-3 syntax and code semantics (same as -3 since Cython 3.1).') |
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parser.add_argument("--lenient", action=SetLenientAction, nargs=0, |
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help='Change some compile time errors to runtime errors to ' |
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'improve Python compatibility') |
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parser.add_argument("--capi-reexport-cincludes", dest='capi_reexport_cincludes', action='store_true', |
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help='Add cincluded headers to any auto-generated header files.') |
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parser.add_argument("--fast-fail", dest='fast_fail', action='store_true', |
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help='Abort the compilation on the first error') |
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parser.add_argument("-Werror", "--warning-errors", dest='warning_errors', action='store_true', |
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help='Make all warnings into errors') |
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parser.add_argument("-Wextra", "--warning-extra", action=ActivateAllWarningsAction, nargs=0, |
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help='Enable extra warnings') |
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parser.add_argument('-X', '--directive', metavar='NAME=VALUE,...', |
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dest='compiler_directives', type=str, |
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action=ParseDirectivesAction, |
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help='Overrides a compiler directive') |
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parser.add_argument('-E', '--compile-time-env', metavar='NAME=VALUE,...', |
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dest='compile_time_env', type=str, |
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action=ParseCompileTimeEnvAction, |
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help='Provides compile time env like DEF would do.') |
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parser.add_argument("--module-name", |
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dest='module_name', type=str, action='store', |
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help='Fully qualified module name. If not given, is ' |
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'deduced from the import path if source file is in ' |
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'a package, or equals the filename otherwise.') |
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parser.add_argument('-M', '--depfile', action='store_true', help='produce depfiles for the sources') |
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parser.add_argument("--generate-shared", dest='shared_c_file_path', action='store', type=str, |
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help='Generates shared module with specified name.') |
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parser.add_argument("--shared", dest='shared_utility_qualified_name', action='store', type=str, |
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help='Imports utility code from shared module specified by fully qualified module name.') |
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parser.add_argument('sources', nargs='*', default=[]) |
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parser.add_argument("-z", "--pre-import", dest='pre_import', action='store', type=str, help=SUPPRESS) |
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parser.add_argument("--convert-range", dest='convert_range', action='store_true', help=SUPPRESS) |
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parser.add_argument("--no-c-in-traceback", dest='c_line_in_traceback', action='store_false', help=SUPPRESS) |
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parser.add_argument("--cimport-from-pyx", dest='cimport_from_pyx', action='store_true', help=SUPPRESS) |
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parser.add_argument("--old-style-globals", dest='old_style_globals', action='store_true', help=SUPPRESS) |
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from . import DebugFlags |
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for name in vars(DebugFlags): |
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if name.startswith("debug"): |
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option_name = name.replace('_', '-') |
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parser.add_argument("--" + option_name, action='store_true', help=SUPPRESS) |
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return parser |
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def parse_command_line_raw(parser, args): |
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def filter_out_embed_options(args): |
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with_embed, without_embed = [], [] |
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for x in args: |
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if x == '--embed' or x.startswith('--embed='): |
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with_embed.append(x) |
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else: |
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without_embed.append(x) |
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return with_embed, without_embed |
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with_embed, args_without_embed = filter_out_embed_options(args) |
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arguments, unknown = parser.parse_known_args(args_without_embed) |
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sources = arguments.sources |
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del arguments.sources |
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for option in unknown: |
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if option.startswith('-'): |
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parser.error("unknown option " + option) |
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else: |
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sources.append(option) |
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for x in with_embed: |
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if x == '--embed': |
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name = 'main' |
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else: |
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name = x[len('--embed='):] |
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setattr(arguments, 'embed', name) |
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return arguments, sources |
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def parse_command_line(args): |
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parser = create_cython_argparser() |
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arguments, sources = parse_command_line_raw(parser, args) |
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work_dir = getattr(arguments, 'working_path', '') |
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for source in sources: |
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if work_dir and not os.path.isabs(source): |
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source = os.path.join(work_dir, source) |
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if not os.path.exists(source): |
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import errno |
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raise FileNotFoundError(errno.ENOENT, os.strerror(errno.ENOENT), source) |
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options = Options.CompilationOptions(Options.default_options) |
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for name, value in vars(arguments).items(): |
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if name.startswith('debug'): |
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from . import DebugFlags |
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if name in dir(DebugFlags): |
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setattr(DebugFlags, name, value) |
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else: |
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parser.error("Unknown debug flag: %s\n" % name) |
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elif hasattr(Options, name): |
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setattr(Options, name, value) |
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else: |
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setattr(options, name, value) |
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if options.use_listing_file and len(sources) > 1: |
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parser.error("cython: Only one source file allowed when using -o\n") |
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if options.shared_c_file_path: |
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if len(sources) > 0: |
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parser.error("cython: Source file not allowed when using --generate-shared\n") |
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elif len(sources) == 0 and not options.show_version: |
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parser.error("cython: Need at least one source file\n") |
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if Options.embed and len(sources) > 1: |
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parser.error("cython: Only one source file allowed when using --embed\n") |
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if options.module_name: |
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if options.timestamps: |
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parser.error("cython: Cannot use --module-name with --timestamps\n") |
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if len(sources) > 1: |
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parser.error("cython: Only one source file allowed when using --module-name\n") |
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return options, sources |
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