2 main.cc -- implement main () entrypoint.
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
18 #include <sys/types.h>
31 #include "all-font-metrics.hh"
32 #include "file-name.hh"
33 #include "freetype.hh"
34 #include "getopt-long.hh"
35 #include "global-ctor.hh"
36 #include "international.hh"
37 #include "lily-guile.hh"
38 #include "lily-version.hh"
40 #include "output-def.hh"
41 #include "program-option.hh"
42 #include "relocate.hh"
43 #include "string-convert.hh"
48 * Global options that can be overridden through command line.
51 /* Names of header fields to be dumped to a separate file. */
52 vector<string> dump_header_fieldnames_global;
54 /* Name of initialisation file. */
55 string init_name_global;
57 /* Selected output backend
58 One of (gnome, ps [default], eps, scm, svg, tex, texstr)") */
59 string output_backend_global = "ps";
61 /* Output formats to generate. */
62 string output_format_global = "";
64 bool is_pango_format_global;
65 bool is_TeX_format_global;
67 /* Current output name. */
68 string output_name_global;
70 /* Run in safe mode? */
71 bool be_safe_global = false;
73 /* Provide URI links to the original file */
74 bool point_and_click_global = true;
76 /* Verbose progress indication? */
77 bool be_verbose_global = false;
79 /* Scheme code to execute before parsing, after .scm init.
80 This is where -e arguments are appended to. */
81 string init_scheme_code_string;
82 string init_scheme_variables;
84 /* Generate preview of first system. */
85 bool make_preview = false;
87 /* Generate printed output. */
88 bool make_print = true;
91 bool relocate_binary =
101 * Miscellaneous global stuff.
103 File_path global_path;
109 static char const *AUTHORS
110 = " Han-Wen Nienhuys <hanwen@xs4all.nl>\n"
111 " Jan Nieuwenhuizen <janneke@gnu.org>\n";
113 static char const *PROGRAM_NAME = "lilypond";
114 static char const *PROGRAM_URL = "http://lilypond.org";
116 static char const *NOTICE
117 = _i ("This program is free software. It is covered by the GNU General Public\n"
118 "License and you are welcome to change it and/or distribute copies of it\n"
119 "under certain conditions. Invoke as `%s --warranty' for more\n"
122 static char const *WARRANTY
123 = _i (" This program is free software; you can redistribute it and/or\n"
124 "modify it under the terms of the GNU General Public License version 2\n"
125 "as published by the Free Software Foundation.\n"
127 " This program is distributed in the hope that it will be useful,\n"
128 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
129 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
130 "General Public License for more details.\n"
132 " You should have received a copy of the\n"
133 "GNU General Public License along with this program; if not, write to\n"
134 "the Free Software Foundation, Inc., 59 Temple Place - Suite 330,\n"
135 "Boston, MA 02111-1307, USA.\n");
137 /* Where the init files live. Typically:
138 LILYPOND_DATADIR = /usr/share/lilypond
140 string prefix_directory;
142 /* The jail specification: USER,GROUP,JAIL,DIR. */
145 /* The option parser */
146 static Getopt_long *option_parser = 0;
148 /* Internationalisation kludge in two steps:
149 * use _i () to get entry in POT file
150 * call gettext () explicitely for actual "translation" */
152 static Long_option_init options_static[]
154 {_i ("BACK"), "backend", 'b', _i ("use backend BACK (gnome, ps,eps,\nscm, svg, tex, texstr)\ndefault: PS")},
156 {_i ("SYM=VAL"), "define-default", 'd',
157 _i ("set a Scheme program option. Uses #t if VAL is not specified\n"
158 "Try -dhelp for help.")},
160 {_i ("EXPR"), "evaluate", 'e', _i ("evaluate scheme code")},
161 /* Bug in option parser: --output =foe is taken as an abbreviation
162 for --output-format. */
163 {_i ("FORMATs"), "formats", 'f', _i ("dump FORMAT,... Also as separate options:")},
164 {0, "dvi", 0, _i ("generate DVI (tex backend only)")},
165 {0, "relocate", 0, _i ("relocate using directory of lilypond program")},
166 {0, "pdf", 0, _i ("generate PDF (default)")},
167 {0, "png", 0, _i ("generate PNG")},
168 {0, "ps", 0, _i ("generate PostScript")},
169 {0, "tex", 0, _i ("generate TeX (tex backend only)")},
170 {0, "help", 'h', _i ("print this help")},
171 {_i ("FIELD"), "header", 'H', _i ("dump a header field to file BASENAME.FIELD")},
172 {_i ("DIR"), "include", 'I', _i ("add DIR to search path")},
173 {_i ("FILE"), "init", 'i', _i ("use FILE as init file")},
175 {_i ("USER,GROUP,JAIL,DIR"), "jail", 'j', _i ("chroot to JAIL, become USER:GROUP\n"
178 {0, "no-print", 0, _i ("do not generate printed output")},
179 {_i ("FILE"), "output", 'o', _i ("write output to FILE (suffix will be added)")},
180 {0, "preview", 'p', _i ("generate a preview of the first system")},
181 {0, "safe-mode", 's', _i ("disallow unsafe Scheme and PostScript operations")},
182 {0, "version", 'v', _i ("print version number")},
183 {0, "verbose", 'V', _i ("be verbose")},
184 {0, "warranty", 'w', _i ("show warranty and copyright")},
188 char const *LILYPOND_DATADIR = PACKAGE_DATADIR "/" TOPLEVEL_VERSION;
191 env_var_info (FILE *out, char const *key)
193 if (char const *value = getenv (key))
194 fprintf (out, "%s=\"%s\"\n", key, value);
201 fprintf (out, "LILYPOND_DATADIR=\"%s\"\n", LILYPOND_DATADIR);
202 env_var_info (out, "LILYPONDPREFIX");
203 fprintf (out, "LOCALEDIR=\"%s\"\n", LOCALEDIR);
205 fprintf (out, "\nEffective prefix: \"%s\"\n", prefix_directory.c_str ());
209 env_var_info (out, "FONTCONFIG_FILE");
210 env_var_info (out, "FONTCONFIG_PATH");
211 env_var_info (out, "GS_FONTPATH");
212 env_var_info (out, "GS_LIB");
213 env_var_info (out, "GUILE_LOAD_PATH");
214 env_var_info (out, "PANGO_RC_FILE");
215 env_var_info (out, "PANGO_PREFIX");
216 env_var_info (out, "PATH");
223 printf (_f ("Copyright (c) %s by\n%s and others.",
232 fputs (gnu_lilypond_version_string ().c_str (), out);
240 puts (_f (NOTICE, PROGRAM_NAME).c_str ());
245 LY_DEFINE (ly_usage, "ly:usage",
247 "Print usage message.")
249 /* No version number or newline here. It confuses help2man. */
250 printf (_f ("Usage: %s [OPTION]... FILE...", PROGRAM_NAME).c_str ());
252 printf (_ ("Typeset music and/or produce MIDI from FILE.").c_str ());
254 printf (_ ("LilyPond produces beautiful music notation.").c_str ());
256 printf (_f ("For more information, see %s", PROGRAM_URL).c_str ());
258 printf (_ ("Options:").c_str ());
260 printf (Long_option_init::table_string (options_static).c_str ());
262 printf (_f ("Report bugs via %s",
263 "http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs"
267 return SCM_UNSPECIFIED;
277 printf (_ (WARRANTY).c_str ());
281 prepend_load_path (string dir)
283 string s = "(set! %load-path (cons \"" + dir + "\" %load-path))";
284 scm_c_eval_string (s.c_str ());
287 void init_global_tweak_registry ();
288 void init_fontconfig ();
294 /* Now we chroot, setuid/setgrp and chdir. If something goes wrong,
295 we exit (this is a security-sensitive area). First we split
296 jail_spec into its components, then we retrieve the user/group id
297 (necessarily *before* chroot'ing) and finally we perform the
302 USER_NAME, GROUP_NAME, JAIL, DIR, JAIL_MAX
305 vector<string> components = string_split (jail_spec, ',');
306 if (components.size () != JAIL_MAX)
308 error (_f ("expected %d arguments with jail, found: %u", JAIL_MAX,
309 (unsigned) components.size ()));
317 if (passwd * passwd = getpwnam (components[USER_NAME].c_str ()))
318 uid = passwd->pw_uid;
322 error (_f ("no such user: %s", components[USER_NAME]));
324 error (_f ("can't get user id from user name: %s: %s",
325 components[USER_NAME],
334 if (group * group = getgrnam (components[GROUP_NAME].c_str ()))
339 error (_f ("no such group: %s", components[GROUP_NAME]));
341 error (_f ("can't get group id from group name: %s: %s",
342 components[GROUP_NAME],
347 if (chroot (components[JAIL].c_str ()))
349 error (_f ("can't chroot to: %s: %s", components[JAIL],
356 error (_f ("can't change group id to: %d: %s", gid, strerror (errno)));
362 error (_f ("can't change user id to: %d: %s", uid, strerror (errno)));
366 if (chdir (components[DIR].c_str ()))
368 error (_f ("can't change working directory to: %s: %s", components[DIR],
376 main_with_guile (void *, int, char **)
378 /* Engravers use lily.scm contents, need to make Guile find it.
379 Prepend onto GUILE %load-path, very ugh. */
381 prepend_load_path (prefix_directory);
382 prepend_load_path (prefix_directory + "/scm");
384 if (be_verbose_global)
386 is_TeX_format_global = (output_backend_global == "tex"
387 || output_backend_global == "texstr");
389 is_pango_format_global = !is_TeX_format_global;
392 call_constructors ();
393 init_global_tweak_registry ();
398 all_fonts_global = new All_font_metrics (global_path.to_string ());
400 if (!init_scheme_variables.empty ()
401 || !init_scheme_code_string.empty ())
403 init_scheme_variables = "(map (lambda (x) (ly:set-option (car x) (cdr x))) (list "
404 + init_scheme_variables + "))";
406 init_scheme_code_string
408 + init_scheme_variables
409 + init_scheme_code_string
412 char const *str0 = init_scheme_code_string.c_str ();
414 if (be_verbose_global)
415 progress_indication (_f ("Evaluating %s", str0));
416 scm_c_eval_string ((char *) str0);
419 /* We accept multiple independent music files on the command line to
420 reduce compile time when processing lots of small files.
421 Starting the GUILE engine is very time consuming. */
425 while (char const *arg = option_parser->get_next_arg ())
427 *tail = scm_cons (scm_makfrom0str (arg), SCM_EOL);
428 tail = SCM_CDRLOC (*tail);
431 delete option_parser;
435 if (!jail_spec.empty ())
439 SCM result = scm_call_1 (ly_lily_module_constant ("lilypond-main"), files);
447 setup_localisation ()
451 setlocale (LC_ALL, "");
453 /* FIXME: check if this is still true.
454 Disable localisation of float values. This breaks TeX output. */
455 setlocale (LC_NUMERIC, "C");
457 string localedir = LOCALEDIR;
458 if (char const *env = getenv ("LILYPOND_LOCALEDIR"))
461 bindtextdomain ("lilypond", localedir.c_str ());
462 textdomain ("lilypond");
467 add_output_format (string format)
469 if (output_format_global != "")
470 output_format_global += ",";
471 output_format_global += format;
475 parse_argv (int argc, char **argv)
477 bool show_help = false;
478 option_parser = new Getopt_long (argc, argv, options_static);
479 while (Long_option_init const *opt = (*option_parser) ())
481 switch (opt->shortname_char_)
484 if (string (opt->longname_str0_) == "dvi"
485 || string (opt->longname_str0_) == "pdf"
486 || string (opt->longname_str0_) == "png"
487 || string (opt->longname_str0_) == "ps"
488 || string (opt->longname_str0_) == "tex")
489 add_output_format (opt->longname_str0_);
490 else if (string (opt->longname_str0_) == "preview")
492 else if (string (opt->longname_str0_) == "no-pages")
494 else if (string (opt->longname_str0_) == "relocate")
495 relocate_binary = true;
500 string arg (option_parser->optional_argument_str0_);
501 ssize eq = arg.find ('=');
508 key = arg.substr (0, eq);
509 val = arg.substr (eq + 1, key.length () - 1);
512 init_scheme_variables
513 += "(cons \'" + key + " " + val + ")\n";
523 string s = option_parser->optional_argument_str0_;
524 File_name file_name (s);
525 output_name_global = file_name.to_string ();
529 jail_spec = option_parser->optional_argument_str0_;
532 init_scheme_code_string += option_parser->optional_argument_str0_;
540 output_backend_global = option_parser->optional_argument_str0_;
545 vector<string> components
546 = string_split (option_parser->optional_argument_str0_, ',');
547 for (vsize i = 0; i < components.size (); i++)
548 add_output_format (components[i]);
553 dump_header_fieldnames_global
554 .push_back (option_parser->optional_argument_str0_);
557 global_path.append (option_parser->optional_argument_str0_);
560 init_name_global = option_parser->optional_argument_str0_;
566 be_verbose_global = true;
569 be_safe_global = true;
570 init_scheme_variables
571 += "(cons \'safe #t)\n";
578 programming_error (to_string ("unhandled short option: %c",
579 opt->shortname_char_));
585 if (output_format_global == "")
586 output_format_global = "pdf";
592 if (be_verbose_global)
601 const char *yield = getenv ("LILYPOND_GC_YIELD");
602 bool overwrite = true;
609 sane_putenv ("GUILE_MIN_YIELD_1", yield, overwrite);
610 sane_putenv ("GUILE_MIN_YIELD_2", yield, overwrite);
611 sane_putenv ("GUILE_MIN_YIELD_MALLOC", yield, overwrite);
615 read_relocation_dir (string);
618 main (int argc, char **argv)
620 if (getenv ("LILYPOND_VERBOSE"))
621 be_verbose_global = true;
623 setup_localisation ();
624 parse_argv (argc, argv);
625 if (isatty (STDIN_FILENO))
628 setup_paths (argv[0]);
634 scm_boot_guile (argc, argv, main_with_guile, 0);
638 error (_f ("exception caught: %s", e.what ()));
641 /* Only reachable if GUILE exits. That is an error. */