1 # 2 # Cython - Command Line Parsing 3 # 4 5 import os 6 import sys 7 import Options 8 9 usage = """\ 10 Cython (http://cython.org) is a compiler for code written in the 11 Cython language. Cython is based on Pyrex by Greg Ewing. 12 13 Usage: cython [options] sourcefile.{pyx,py} ... 14 15 Options: 16 -V, --version Display version number of cython compiler 17 -l, --create-listing Write error messages to a listing file 18 -I, --include-dir <directory> Search for include files in named directory 19 (multiple include directories are allowed). 20 -o, --output-file <filename> Specify name of generated C file 21 -t, --timestamps Only compile newer source files 22 -f, --force Compile all source files (overrides implied -t) 23 -v, --verbose Be verbose, print file names on multiple compilation 24 -p, --embed-positions If specified, the positions in Cython files of each 25 function definition is embedded in its docstring. 26 --cleanup <level> Release interned objects on python exit, for memory debugging. 27 Level indicates aggressiveness, default 0 releases nothing. 28 -w, --working <directory> Sets the working directory for Cython (the directory modules 29 are searched from) 30 --gdb Output debug information for cygdb 31 --gdb-outdir <directory> Specify gdb debug information output directory. Implies --gdb. 32 33 -D, --no-docstrings Strip docstrings from the compiled module. 34 -a, --annotate Produce a colorized HTML version of the source. 35 --line-directives Produce #line directives pointing to the .pyx source 36 --cplus Output a C++ rather than C file. 37 --embed[=<method_name>] Generate a main() function that embeds the Python interpreter. 38 -2 Compile based on Python-2 syntax and code semantics. 39 -3 Compile based on Python-3 syntax and code semantics. 40 --lenient Change some compile time errors to runtime errors to 41 improve Python compatibility 42 --capi-reexport-cincludes Add cincluded headers to any auto-generated header files. 43 --fast-fail Abort the compilation on the first error 44 --warning-errors, -Werror Make all warnings into errors 45 --warning-extra, -Wextra Enable extra warnings 46 -X, --directive <name>=<value>[,<name=value,...] Overrides a compiler directive 47 """ 48 49 #The following experimental options are supported only on MacOSX: 50 # -C, --compile Compile generated .c file to .o file 51 # --link Link .o file to produce extension module (implies -C) 52 # -+, --cplus Use C++ compiler for compiling and linking 53 # Additional .o files to link may be supplied when using -X.""" 54 55 def bad_usage(): 56 sys.stderr.write(usage) 57 sys.exit(1) 58 59 def parse_command_line(args): 60 61 from Cython.Compiler.Main import \ 62 CompilationOptions, default_options 63 64 def pop_arg(): 65 if args: 66 return args.pop(0) 67 else: 68 bad_usage() 69 70 def get_param(option): 71 tail = option[2:] 72 if tail: 73 return tail 74 else: 75 return pop_arg() 76 77 options = CompilationOptions(default_options) 78 sources = [] 79 while args: 80 if args[0].startswith("-"): 81 option = pop_arg() 82 if option in ("-V", "--version"): 83 options.show_version = 1 84 elif option in ("-l", "--create-listing"): 85 options.use_listing_file = 1 86 elif option in ("-+", "--cplus"): 87 options.cplus = 1 88 elif option == "--embed": 89 Options.embed = "main" 90 elif option.startswith("--embed="): 91 Options.embed = option[8:] 92 elif option.startswith("-I"): 93 options.include_path.append(get_param(option)) 94 elif option == "--include-dir": 95 options.include_path.append(pop_arg()) 96 elif option in ("-w", "--working"): 97 options.working_path = pop_arg() 98 elif option in ("-o", "--output-file"): 99 options.output_file = pop_arg() 100 elif option in ("-t", "--timestamps"): 101 options.timestamps = 1 102 elif option in ("-f", "--force"): 103 options.timestamps = 0 104 elif option in ("-v", "--verbose"): 105 options.verbose += 1 106 elif option in ("-p", "--embed-positions"): 107 Options.embed_pos_in_docstring = 1 108 elif option in ("-z", "--pre-import"): 109 Options.pre_import = pop_arg() 110 elif option == "--cleanup": 111 Options.generate_cleanup_code = int(pop_arg()) 112 elif option in ("-D", "--no-docstrings"): 113 Options.docstrings = False 114 elif option in ("-a", "--annotate"): 115 Options.annotate = True 116 elif option == "--convert-range": 117 Options.convert_range = True 118 elif option == "--line-directives": 119 options.emit_linenums = True 120 elif option == "--no-c-in-traceback": 121 options.c_line_in_traceback = False 122 elif option == "--gdb": 123 options.gdb_debug = True 124 options.output_dir = os.curdir 125 elif option == "--gdb-outdir": 126 options.gdb_debug = True 127 options.output_dir = pop_arg() 128 elif option == "--lenient": 129 Options.error_on_unknown_names = False 130 Options.error_on_uninitialized = False 131 elif option == '-2': 132 options.language_level = 2 133 elif option == '-3': 134 options.language_level = 3 135 elif option == "--capi-reexport-cincludes": 136 options.capi_reexport_cincludes = True 137 elif option == "--fast-fail": 138 Options.fast_fail = True 139 elif option in ('-Werror', '--warning-errors'): 140 Options.warning_errors = True 141 elif option in ('-Wextra', '--warning-extra'): 142 options.compiler_directives.update(Options.extra_warnings) 143 elif option == "--old-style-globals": 144 Options.old_style_globals = True 145 elif option == "--directive" or option.startswith('-X'): 146 if option.startswith('-X') and option[2:].strip(): 147 x_args = option[2:] 148 else: 149 x_args = pop_arg() 150 try: 151 options.compiler_directives = Options.parse_directive_list( 152 x_args, relaxed_bool=True, 153 current_settings=options.compiler_directives) 154 except ValueError, e: 155 sys.stderr.write("Error in compiler directive: %s\n" % e.args[0]) 156 sys.exit(1) 157 elif option.startswith('--debug'): 158 option = option[2:].replace('-', '_') 159 import DebugFlags 160 if option in dir(DebugFlags): 161 setattr(DebugFlags, option, True) 162 else: 163 sys.stderr.write("Unknown debug flag: %s\n" % option) 164 bad_usage() 165 elif option in ('-h', '--help'): 166 sys.stdout.write(usage) 167 sys.exit(0) 168 else: 169 sys.stderr.write("Unknown compiler flag: %s\n" % option) 170 sys.exit(1) 171 else: 172 sources.append(pop_arg()) 173 if options.use_listing_file and len(sources) > 1: 174 sys.stderr.write( 175 "cython: Only one source file allowed when using -o\n") 176 sys.exit(1) 177 if len(sources) == 0 and not options.show_version: 178 bad_usage() 179 if Options.embed and len(sources) > 1: 180 sys.stderr.write( 181 "cython: Only one source file allowed when using -embed\n") 182 sys.exit(1) 183 return options, sources 184 185
