mirror of
https://github.com/python/cpython.git
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21ed16acbe
actual script to run in case we are running from an applet. If we are indeed running an applet we skip the normal option processing leaving it all to the applet code. This allows us to get use the normal python binary in the Python.app bundle, giving us all the normal command line options through PythonLauncher while still allowing Python.app to be used as the template for building applets. Consequently, pythonforbundle is gone, and Mac/Python/macmain.c isn't used on OSX anymore.
427 lines
11 KiB
C
427 lines
11 KiB
C
/* Python interpreter main program */
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#include "Python.h"
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#include "osdefs.h"
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#include "compile.h" /* For CO_FUTURE_DIVISION */
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#ifdef MS_WINDOWS
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#include <fcntl.h>
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#endif
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#if (defined(PYOS_OS2) && !defined(PYCC_GCC)) || defined(MS_WINDOWS)
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#define PYTHONHOMEHELP "<prefix>\\lib"
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#else
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#if defined(PYOS_OS2) && defined(PYCC_GCC)
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#define PYTHONHOMEHELP "<prefix>/Lib"
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#else
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#define PYTHONHOMEHELP "<prefix>/pythonX.X"
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#endif
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#endif
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#include "pygetopt.h"
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#define COPYRIGHT \
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"Type \"help\", \"copyright\", \"credits\" or \"license\" " \
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"for more information."
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/* For Py_GetArgcArgv(); set by main() */
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static char **orig_argv;
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static int orig_argc;
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/* command line options */
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#define BASE_OPTS "c:dEhiOQ:StuUvVW:xX"
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#ifndef RISCOS
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#define PROGRAM_OPTS BASE_OPTS
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#else /*RISCOS*/
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/* extra option saying that we are running under a special task window
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frontend; especially my_readline will behave different */
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#define PROGRAM_OPTS BASE_OPTS "w"
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/* corresponding flag */
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extern int Py_RISCOSWimpFlag;
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#endif /*RISCOS*/
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/* Short usage message (with %s for argv0) */
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static char *usage_line =
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"usage: %s [option] ... [-c cmd | file | -] [arg] ...\n";
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/* Long usage message, split into parts < 512 bytes */
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static char *usage_1 = "\
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Options and arguments (and corresponding environment variables):\n\
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-c cmd : program passed in as string (terminates option list)\n\
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-d : debug output from parser (also PYTHONDEBUG=x)\n\
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-E : ignore environment variables (such as PYTHONPATH)\n\
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-h : print this help message and exit\n\
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-i : inspect interactively after running script, (also PYTHONINSPECT=x)\n\
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and force prompts, even if stdin does not appear to be a terminal\n\
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";
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static char *usage_2 = "\
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-O : optimize generated bytecode (a tad; also PYTHONOPTIMIZE=x)\n\
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-OO : remove doc-strings in addition to the -O optimizations\n\
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-Q arg : division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew\n\
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-S : don't imply 'import site' on initialization\n\
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-t : issue warnings about inconsistent tab usage (-tt: issue errors)\n\
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-u : unbuffered binary stdout and stderr (also PYTHONUNBUFFERED=x)\n\
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see man page for details on internal buffering relating to '-u'\n\
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";
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static char *usage_3 = "\
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-v : verbose (trace import statements) (also PYTHONVERBOSE=x)\n\
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-V : print the Python version number and exit\n\
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-W arg : warning control (arg is action:message:category:module:lineno)\n\
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-x : skip first line of source, allowing use of non-Unix forms of #!cmd\n\
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file : program read from script file\n\
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- : program read from stdin (default; interactive mode if a tty)\n\
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";
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static char *usage_4 = "\
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arg ...: arguments passed to program in sys.argv[1:]\n\
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Other environment variables:\n\
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PYTHONSTARTUP: file executed on interactive startup (no default)\n\
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PYTHONPATH : '%c'-separated list of directories prefixed to the\n\
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default module search path. The result is sys.path.\n\
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PYTHONHOME : alternate <prefix> directory (or <prefix>%c<exec_prefix>).\n\
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The default module search path uses %s.\n\
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PYTHONCASEOK : ignore case in 'import' statements (Windows).\n\
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";
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static void
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usage(int exitcode, char* program)
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{
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FILE *f = exitcode ? stderr : stdout;
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fprintf(f, usage_line, program);
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if (exitcode)
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fprintf(f, "Try `python -h' for more information.\n");
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else {
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fprintf(f, usage_1);
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fprintf(f, usage_2);
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fprintf(f, usage_3);
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fprintf(f, usage_4, DELIM, DELIM, PYTHONHOMEHELP);
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}
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exit(exitcode);
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/*NOTREACHED*/
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}
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/* Main program */
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int
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Py_Main(int argc, char **argv)
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{
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int c;
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int sts;
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char *command = NULL;
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char *filename = NULL;
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FILE *fp = stdin;
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char *p;
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int inspect = 0;
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int unbuffered = 0;
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int skipfirstline = 0;
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int stdin_is_interactive = 0;
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int help = 0;
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int version = 0;
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int saw_inspect_flag = 0;
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int saw_unbuffered_flag = 0;
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PyCompilerFlags cf;
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cf.cf_flags = 0;
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orig_argc = argc; /* For Py_GetArgcArgv() */
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orig_argv = argv;
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#ifdef RISCOS
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Py_RISCOSWimpFlag = 0;
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#endif
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PySys_ResetWarnOptions();
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#if defined(WITH_NEXT_FRAMEWORK)
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/* If we are running from a framework it could be that we are actually
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** the main program for an applet. If so, the next call will return the
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** filename that we are supposed to run.
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*/
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filename = PyMac_GetAppletScriptFile();
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if (filename != NULL) {
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if ((fp = fopen(filename, "r")) == NULL) {
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fprintf(stderr, "%s: can't open file '%s'\n",
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argv[0], filename);
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exit(2);
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}
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}
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/* Skip option-processing if we are an applet */
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if (filename == NULL)
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#endif
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while ((c = _PyOS_GetOpt(argc, argv, PROGRAM_OPTS)) != EOF) {
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if (c == 'c') {
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/* -c is the last option; following arguments
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that look like options are left for the
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the command to interpret. */
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command = malloc(strlen(_PyOS_optarg) + 2);
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if (command == NULL)
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Py_FatalError(
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"not enough memory to copy -c argument");
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strcpy(command, _PyOS_optarg);
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strcat(command, "\n");
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break;
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}
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switch (c) {
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case 'd':
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Py_DebugFlag++;
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break;
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case 'Q':
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if (strcmp(_PyOS_optarg, "old") == 0) {
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Py_DivisionWarningFlag = 0;
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break;
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}
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if (strcmp(_PyOS_optarg, "warn") == 0) {
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Py_DivisionWarningFlag = 1;
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break;
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}
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if (strcmp(_PyOS_optarg, "warnall") == 0) {
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Py_DivisionWarningFlag = 2;
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break;
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}
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if (strcmp(_PyOS_optarg, "new") == 0) {
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/* This only affects __main__ */
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cf.cf_flags |= CO_FUTURE_DIVISION;
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/* And this tells the eval loop to treat
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BINARY_DIVIDE as BINARY_TRUE_DIVIDE */
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_Py_QnewFlag = 1;
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break;
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}
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fprintf(stderr,
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"-Q option should be `-Qold', "
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"`-Qwarn', `-Qwarnall', or `-Qnew' only\n");
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usage(2, argv[0]);
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/* NOTREACHED */
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case 'i':
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inspect++;
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saw_inspect_flag = 1;
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Py_InteractiveFlag++;
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break;
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case 'O':
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Py_OptimizeFlag++;
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break;
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case 'S':
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Py_NoSiteFlag++;
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break;
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case 'E':
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Py_IgnoreEnvironmentFlag++;
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break;
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case 't':
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Py_TabcheckFlag++;
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break;
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case 'u':
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unbuffered++;
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saw_unbuffered_flag = 1;
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break;
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case 'v':
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Py_VerboseFlag++;
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break;
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#ifdef RISCOS
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case 'w':
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Py_RISCOSWimpFlag = 1;
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break;
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#endif
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case 'x':
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skipfirstline = 1;
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break;
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case 'U':
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Py_UnicodeFlag++;
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break;
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case 'h':
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help++;
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break;
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case 'V':
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version++;
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break;
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case 'W':
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PySys_AddWarnOption(_PyOS_optarg);
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break;
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/* This space reserved for other options */
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default:
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usage(2, argv[0]);
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/*NOTREACHED*/
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}
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}
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if (help)
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usage(0, argv[0]);
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if (version) {
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fprintf(stderr, "Python %s\n", PY_VERSION);
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exit(0);
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}
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if (!saw_inspect_flag &&
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(p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
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inspect = 1;
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if (!saw_unbuffered_flag &&
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(p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
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unbuffered = 1;
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if (command == NULL && filename == NULL && _PyOS_optind < argc &&
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strcmp(argv[_PyOS_optind], "-") != 0)
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{
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filename = argv[_PyOS_optind];
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if (filename != NULL) {
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if ((fp = fopen(filename, "r")) == NULL) {
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fprintf(stderr, "%s: can't open file '%s'\n",
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argv[0], filename);
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exit(2);
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}
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else if (skipfirstline) {
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int ch;
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/* Push back first newline so line numbers
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remain the same */
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while ((ch = getc(fp)) != EOF) {
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if (ch == '\n') {
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(void)ungetc(ch, fp);
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break;
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}
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}
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}
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}
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}
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stdin_is_interactive = Py_FdIsInteractive(stdin, (char *)0);
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if (unbuffered) {
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#ifdef MS_WINDOWS
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_setmode(fileno(stdin), O_BINARY);
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_setmode(fileno(stdout), O_BINARY);
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#endif
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#ifndef MPW
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#ifdef HAVE_SETVBUF
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setvbuf(stdin, (char *)NULL, _IONBF, BUFSIZ);
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setvbuf(stdout, (char *)NULL, _IONBF, BUFSIZ);
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setvbuf(stderr, (char *)NULL, _IONBF, BUFSIZ);
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#else /* !HAVE_SETVBUF */
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setbuf(stdin, (char *)NULL);
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setbuf(stdout, (char *)NULL);
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setbuf(stderr, (char *)NULL);
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#endif /* !HAVE_SETVBUF */
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#else /* MPW */
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/* On MPW (3.2) unbuffered seems to hang */
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setvbuf(stdin, (char *)NULL, _IOLBF, BUFSIZ);
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setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ);
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setvbuf(stderr, (char *)NULL, _IOLBF, BUFSIZ);
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#endif /* MPW */
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}
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else if (Py_InteractiveFlag) {
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#ifdef MS_WINDOWS
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/* Doesn't have to have line-buffered -- use unbuffered */
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/* Any set[v]buf(stdin, ...) screws up Tkinter :-( */
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setvbuf(stdout, (char *)NULL, _IONBF, BUFSIZ);
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#else /* !MS_WINDOWS */
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#ifdef HAVE_SETVBUF
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setvbuf(stdin, (char *)NULL, _IOLBF, BUFSIZ);
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setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ);
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#endif /* HAVE_SETVBUF */
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#endif /* !MS_WINDOWS */
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/* Leave stderr alone - it should be unbuffered anyway. */
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}
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Py_SetProgramName(argv[0]);
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Py_Initialize();
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if (Py_VerboseFlag ||
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(command == NULL && filename == NULL && stdin_is_interactive))
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fprintf(stderr, "Python %s on %s\n%s\n",
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Py_GetVersion(), Py_GetPlatform(), COPYRIGHT);
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if (command != NULL) {
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/* Backup _PyOS_optind and force sys.argv[0] = '-c' */
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_PyOS_optind--;
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argv[_PyOS_optind] = "-c";
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}
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PySys_SetArgv(argc-_PyOS_optind, argv+_PyOS_optind);
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if ((inspect || (command == NULL && filename == NULL)) &&
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isatty(fileno(stdin))) {
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PyObject *v;
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v = PyImport_ImportModule("readline");
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if (v == NULL)
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PyErr_Clear();
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else
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Py_DECREF(v);
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}
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if (command) {
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sts = PyRun_SimpleStringFlags(command, &cf) != 0;
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free(command);
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}
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else {
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if (filename == NULL && stdin_is_interactive) {
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char *startup = Py_GETENV("PYTHONSTARTUP");
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if (startup != NULL && startup[0] != '\0') {
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FILE *fp = fopen(startup, "r");
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if (fp != NULL) {
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(void) PyRun_SimpleFile(fp, startup);
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PyErr_Clear();
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fclose(fp);
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}
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}
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}
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/* XXX */
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sts = PyRun_AnyFileExFlags(
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fp,
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filename == NULL ? "<stdin>" : filename,
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filename != NULL, &cf) != 0;
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}
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if (inspect && stdin_is_interactive &&
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(filename != NULL || command != NULL))
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/* XXX */
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sts = PyRun_AnyFileFlags(stdin, "<stdin>", &cf) != 0;
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Py_Finalize();
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#ifdef RISCOS
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if(Py_RISCOSWimpFlag)
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fprintf(stderr, "\x0cq\x0c"); /* make frontend quit */
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#endif
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#ifdef __INSURE__
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/* Insure++ is a memory analysis tool that aids in discovering
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* memory leaks and other memory problems. On Python exit, the
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* interned string dictionary is flagged as being in use at exit
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* (which it is). Under normal circumstances, this is fine because
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* the memory will be automatically reclaimed by the system. Under
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* memory debugging, it's a huge source of useless noise, so we
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* trade off slower shutdown for less distraction in the memory
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* reports. -baw
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*/
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_Py_ReleaseInternedStrings();
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#endif /* __INSURE__ */
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return sts;
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}
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/* Make the *original* argc/argv available to other modules.
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This is rare, but it is needed by the secureware extension. */
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void
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Py_GetArgcArgv(int *argc, char ***argv)
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{
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*argc = orig_argc;
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*argv = orig_argv;
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}
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