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/* wydawca - automatic release submission daemon -*- c -*-
   Copyright (C) 2007, 2009-2013, 2017, 2019-2022 Sergey Poznyakoff

   Wydawca is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 3 of the License, or (at your
   option) any later version.

   Wydawca is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License along
   with wydawca. If not, see <http://www.gnu.org/licenses/>. */

static struct grecs_txtacc *pp_cmd_acc;

static struct grecs_list *source_list;
static struct grecs_list *tag_list;

static int
string_cmp(const void *elt1, const void *elt2)
{
    return strcmp((const char *)elt1, (const char *)elt2);
}

int
selected_spools()
{
    return (source_list != NULL || tag_list != NULL);
}

int
enabled_spool_p(const struct spool *spool)
{
    if (source_list || tag_list)
	return (source_list &&
		grecs_list_locate(source_list, spool->source_dir)) ||
	       (tag_list && grecs_list_locate (tag_list, spool->tag));
    return 1;
}

void
pp_add_option(const char *opt, const char *arg)
{
    if (!pp_cmd_acc)
	pp_cmd_acc = grecs_txtacc_create();
    grecs_txtacc_grow_char(pp_cmd_acc, ' ');
    grecs_txtacc_grow_string(pp_cmd_acc, opt);

    if (arg) {
	grecs_txtacc_grow_char(pp_cmd_acc, '\'');
	for (; *arg; ++arg) {
	    if (*arg == '\'')
		grecs_txtacc_grow_string(pp_cmd_acc, "'\\''");
	    else
		grecs_txtacc_grow(pp_cmd_acc, arg, 1);
	}
	grecs_txtacc_grow_char(pp_cmd_acc, '\'');
    }
}


OPTIONS_BEGIN("wydawca",
	      [<wydawca synchronizes files from a set of upload directories with the corresponding distribution sites>],
	      [<>],
	      [<gnu>],
	      [<copyright_year=2007-2022>],
	      [<copyright_holder=Sergey Poznyakoff>])

GROUP(Selecting program mode)

OPTION(lint,t,,
       [<parse configuration file and exit>])
BEGIN
    lint_mode = 1;
    wy_log_to_stderr = 1;
END

OPTION(,E,,
       [<preprocess config and exit>])
BEGIN
    preprocess_only = 1;
END

OPTION(dry-run,n,,
       [<do nothing, print almost everything; implies `--debug --stderr',
	 use additional `--debug' options to get even more info>])
BEGIN
    wy_log_to_stderr = 1;
    wy_debug_level++;
    wy_dry_run = 1;
END

OPTION(cron,,,
       [<force cron mode>])
BEGIN
    wy_mode_option = WY_MODE_CRON;
END

OPTION(daemon,,,
       [<force daemon mode>])
BEGIN
    wy_mode_option = WY_MODE_DAEMON;
END

OPTION(force,,,
       [<force start up even if the pid file already exists>])
BEGIN
    force_startup = 1;
END

OPTION(foreground,,,
       [<foreground mode>])
BEGIN
    foreground_option = 1;
END

OPTION(config-file,c,FILE,
       [<use FILE instead of the default configuration>])
BEGIN
    conffile = optarg;
END

OPTION(spool,S,TAG,
       [<process only spool with the given tag (may be used multiple times)>])
BEGIN
    if (!tag_list) {
	tag_list = grecs_list_create();
	tag_list->cmp = string_cmp;
    }
    grecs_list_append(tag_list, optarg);
END

OPTION(source,s,SOURCE-DIR,
       [<process only spool with the given source (may be used multiple times)>])
BEGIN
    if (!source_list) {
	source_list = grecs_list_create();
	source_list->cmp = string_cmp;
    }
    grecs_list_append(source_list, optarg);
END

GROUP(Logging)

OPTION(syslog,,,
       [<log to syslog>])
BEGIN
    wy_log_to_stderr = 0;
END

OPTION(stderr,e,,
       [<log to stderr>])
BEGIN
    wy_log_to_stderr = 1;
END

OPTION(max-severity,l,SEVERITY,
       [<log messages up to that severity>])
BEGIN
    if ((wy_log_max_severity = wy_strtopri(optarg)) == -1) {
	 wy_log(LOG_CRIT, _("unknown severity: %s"), optarg);
	 exit(EX_USAGE);
    }
END

GROUP(Preprocessor control)

OPTION(include-directory,I,DIR,
       [<add include directory>])
BEGIN
    pp_add_option("-I", optarg);
END

OPTION(define,D,SYMBOL[=VALUE],
       [<define a preprocessor symbol>])
BEGIN
    pp_add_option("-D", optarg);
END

OPTION(preprocessor,,COMMAND,
       [<use COMMAND instead of the default preprocessor>])
BEGIN
    grecs_preprocessor = optarg;
END

OPTION(no-preprocessor,,,
       [<disable preprocessing>])
BEGIN
    grecs_preprocessor = NULL;
END

GROUP(Debugging)

OPTION(debug,d,[<[LEVEL]>],
       [<set debugging level>])
BEGIN
    if (!optarg) {
	wy_debug_level++;
    } else {
	char *p;
	unsigned long n = strtoul(optarg, &p, 10);
	if (*p != 0) {
	    /* Try to detect legacy usage */
	    if (p == optarg && *p == 'd') {
		n = 1;
		while (*p && *p == 'd') {
		    n++;
		    p++;
		}
		if (*p) {
		    wy_log(LOG_CRIT, _("--debug: not a valid number: %s"),
			   optarg);
		    exit(EX_USAGE);
		}
	    } else {
		wy_log(LOG_CRIT, _("--debug: not a valid number: %s"), optarg);
		exit(EX_USAGE);
	    }
	}
	if (n < INT_MAX)
	    wy_debug_level = n;
	else {
	    wy_log(LOG_CRIT, _("--debug: number out of range: %s"), optarg);
	    exit(EX_USAGE);
	}
    }
END

OPTION(dump-grammar-trace,,,
       [<dump configuration grammar traces>])
BEGIN
    grecs_gram_trace(1);
END

OPTION(dump-lex-trace,,,
       [<dump lexical analyzer traces>])
BEGIN
    grecs_lex_trace(1);
END

GROUP([<Additional help>])
OPTION(config-help,,,
       [<show configuration file summary>])
BEGIN
    config_help();
    exit(0);
END

OPTION(module-help,,MODULE,
       [<show help for MODULE>])
BEGIN
    module_help(optarg);
    exit(0);
END

OPTIONS_END

static void
wydawca_help_hook (FILE *fp)
{
      if (DEFAULT_PREPROCESSOR) {
	  fprintf (fp,
		   _("This wydawca preprocesses its configuration using %s\n"),
		   DEFAULT_PREPROCESSOR);
	  fprintf (fp, _("Preprocessor include path: %s\n"),
		   DEFAULT_INCLUDE_PATH);
      } else
	  fprintf (fp,
		   _("This wydawca does not use configuration preprocessor.\n"));
      fputc ('\n', fp);
}


void
parse_options(int argc, char *argv[])
{
    struct wordsplit ws;

    ws.ws_delim = ":";
    if (wordsplit(DEFAULT_INCLUDE_PATH, &ws,
		  WRDSF_DELIM |
		     WRDSF_ENOMEMABRT |
		     WRDSF_SHOWERR |
		     WRDSF_NOCMD |
		     WRDSF_NOVAR) == 0) {
	int i;
	for (i = 0; i < ws.ws_wordc; i++)
	    pp_add_option("-I", ws.ws_wordv[i]);
    }
    wordsplit_free (&ws);

    proginfo.print_help_hook = wydawca_help_hook;

    GETOPT(argc, argv);
    if (pp_cmd_acc && grecs_preprocessor) {
	char *cmd;
	size_t len = strlen(grecs_preprocessor);
	grecs_txtacc_grow_char(pp_cmd_acc, 0);
	grecs_txtacc_grow(pp_cmd_acc, grecs_preprocessor, len + 1);
	cmd = grecs_txtacc_finish(pp_cmd_acc, 1);
	grecs_txtacc_free(pp_cmd_acc);
	memmove(cmd + len + 1, cmd, strlen(cmd) + 1);
	memcpy(cmd, grecs_preprocessor, len);
	cmd[len] = ' ';
	grecs_preprocessor = cmd;
    }
}

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