2 main.cc -- implement main () entrypoint.
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
18 #include <sys/types.h>
26 #include "all-font-metrics.hh"
27 #include "file-name.hh"
28 #include "freetype.hh"
29 #include "getopt-long.hh"
30 #include "global-ctor.hh"
31 #include "lily-guile.hh"
32 #include "lily-version.hh"
34 #include "output-def.hh"
35 #include "string-convert.hh"
40 * Global options that can be overridden through command line.
43 /* Names of header fields to be dumped to a separate file. */
44 Array<String> dump_header_fieldnames_global;
46 /* Name of initialisation file. */
47 String init_name_global;
49 /* Selected output format.
50 One of tex, ps, scm, as.
52 String output_backend_global = "ps";
53 String output_format_global = "pdf";
55 bool is_pango_format_global;
56 bool is_TeX_format_global;
58 /* Current output name. */
59 String output_name_global;
61 /* Run in safe mode? */
62 bool be_safe_global = false;
64 /* Verbose progress indication? */
65 bool be_verbose_global = false;
67 /* Scheme code to execute before parsing, after .scm init
68 This is where -e arguments are appended to.
70 String init_scheme_code_string = "(begin #t ";
72 bool make_preview = false;
73 bool make_pages = true;
76 * Miscellaneous global stuff.
78 File_path global_path;
84 static char const *AUTHORS
85 = " Han-Wen Nienhuys <hanwen@cs.uu.nl>\n"
86 " Jan Nieuwenhuizen <janneke@gnu.org>\n";
88 static char const *PROGRAM_NAME = "lilypond";
89 static char const *PROGRAM_URL = "http://lilypond.org";
91 static char const *NOTICE
92 = _i ("This program is free software. It is covered by the GNU General Public\n"
93 "License and you are welcome to change it and/or distribute copies of it\n"
94 "under certain conditions. Invoke as `%s --warranty' for more\n"
97 static char const *WARRANTY
98 = _i (" This program is free software; you can redistribute it and/or\n"
99 "modify it under the terms of the GNU General Public License version 2\n"
100 "as published by the Free Software Foundation.\n"
102 " This program is distributed in the hope that it will be useful,\n"
103 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
104 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
105 "General Public License for more details.\n"
107 " You should have received a copy (refer to the file COPYING) of the\n"
108 "GNU General Public License along with this program; if not, write to\n"
109 "the Free Software Foundation, Inc., 59 Temple Place - Suite 330,\n"
110 "Boston, MA 02111-1307, USA.\n");
112 /* Where the init files live. Typically:
113 LILYPOND_DATADIR = /usr/share/lilypond
115 String prefix_directory;
117 /* The jail specification: USER,GROUP,JAIL,DIR. */
120 /* The option parser */
121 static Getopt_long *option_parser = 0;
123 /* Internationalisation kludge in two steps:
124 * use _i () to get entry in POT file
125 * call gettext () explicitely for actual "translation" */
127 static Long_option_init options_static[]
129 {_i ("EXT"), "backend", 'b', _i ("select backend to use")},
130 {_i ("EXPR"), "evaluate", 'e',
131 _i ("set option, use -e '(ly:option-usage)' for help")},
132 /* Bug in option parser: --output =foe is taken as an abbreviation
133 for --output-format. */
134 {_i ("EXTs"), "formats", 'f', _i ("list of formats to dump")},
135 {0, "help", 'h', _i ("print this help")},
136 {_i ("FIELD"), "header", 'H', _i ("write header field to BASENAME.FIELD")},
137 {_i ("DIR"), "include", 'I', _i ("add DIR to search path")},
138 {_i ("FILE"), "init", 'i', _i ("use FILE as init file")},
139 {_i ("FILE"), "output", 'o', _i ("write output to FILE (suffix will be added)")},
140 {_i ("USER,GROUP,JAIL,DIR"), "jail", 'j', _i ("chroot to JAIL, become USER:GROUP and cd into DIR")},
141 {0, "preview", 'p', _i ("generate a preview")},
142 {0, "no-pages", 0, _i ("don't generate full pages")},
143 {0, "png", 0, _i ("generate PNG")},
144 {0, "ps", 0, _i ("generate PostScript")},
145 {0, "dvi", 0, _i ("generate DVI")},
146 {0, "pdf", 0, _i ("generate PDF (default)")},
147 {0, "tex", 0, _i ("generate TeX")},
148 {0, "safe-mode", 's', _i ("run in safe mode")},
149 {0, "version", 'v', _i ("print version number")},
150 {0, "verbose", 'V', _i ("be verbose")},
151 {0, "warranty", 'w', _i ("show warranty and copyright")},
159 fprintf (out, "LILYPOND_DATADIR=\"%s\"\n", LILYPOND_DATADIR);
160 if (char const *env = getenv ("LILYPONDPREFIX"))
161 fprintf (out, "LILYPONDPREFIX=\"%s\"\n", env);
162 fprintf (out, "LOCALEDIR=\"%s\"\n", LOCALEDIR);
164 fprintf (out, "\nEffective prefix: \"%s\"\n", prefix_directory.to_str0 ());
170 printf (_f ("Copyright (c) %s by\n%s and others.",
172 AUTHORS).to_str0 ());
179 fputs (gnu_lilypond_version_string ().to_str0 (), out);
187 puts (_f (NOTICE, PROGRAM_NAME).to_str0 ());
195 /* No version number or newline here. It confuses help2man. */
196 printf (_f ("Usage: %s [OPTION]... FILE...", PROGRAM_NAME).to_str0 ());
198 printf (_ ("Typeset music and/or produce MIDI from FILE.").to_str0 ());
200 printf (_ ("LilyPond produces beautiful music notation.").to_str0 ());
202 printf (_f ("For more information, see %s", PROGRAM_URL).to_str0 ());
204 printf (_ ("Options:").to_str0 ());
206 printf (Long_option_init::table_string (options_static).to_str0 ());
208 printf (_f ("Report bugs to %s.", "bug-lilypond@gnu.org").to_str0 ());
220 printf (_ (WARRANTY).to_str0 ());
226 prefix_directory = LILYPOND_DATADIR;
227 if (char const *env = getenv ("LILYPONDPREFIX"))
228 prefix_directory = env;
230 global_path.append ("");
232 /* Adding mf/out make lilypond unchanged source directory, when setting
233 LILYPONDPREFIX to lilypond-x.y.z */
234 char *suffixes[] = {"ly", "fonts/cff", "fonts/otf", "mf/out", "scm",
235 "fonts/tfm", "ps", "fonts/svg",
238 for (char **s = suffixes; *s; s++)
240 String path = prefix_directory + to_string ('/') + String (*s);
241 global_path.prepend (path);
246 prepend_load_path (String dir)
248 String s = "(set! %load-path (cons \"" + dir + "\" %load-path))";
249 scm_c_eval_string (s.to_str0 ());
252 void init_global_tweak_registry ();
253 void init_fontconfig ();
258 /* Now we chroot, setuid/setgrp and chdir. If something goes wrong,
259 we exit (this is a security-sensitive area). First we split
260 jail_spec into its components, then we retrieve the user/group id
261 (necessarily *before* chroot'ing) and finally we perform the
266 USER_NAME, GROUP_NAME, JAIL, DIR, JAIL_MAX
269 Array<String> components = String_convert::split (jail_spec, ',');
270 if (components.size () != JAIL_MAX)
272 error (_f ("expected %d arguments with jail, found: %d", JAIL_MAX,
273 components.size ()));
281 if (passwd *passwd = getpwnam (components[USER_NAME].to_str0 ()))
282 uid = passwd->pw_uid;
286 error (_f ("no such user: %s", components[USER_NAME]));
288 error (_f ("can't get user id from user name: %s: %s",
289 components[USER_NAME],
298 if (group *group = getgrnam (components[GROUP_NAME].to_str0 ()))
303 error (_f ("no such group: %s", components[GROUP_NAME]));
305 error (_f ("can't get group id from group name: %s: ",
306 components[GROUP_NAME],
311 if (chroot (components[JAIL].to_str0 ()))
313 error (_f ("can't chroot to: %s: %s", components[JAIL],
320 error (_f ("can't change group id to: %d: %s", gid, strerror (errno)));
326 error (_f ("can't change user id to: %d: %s", uid, strerror (errno)));
330 if (chdir (components[DIR].to_str0 ()))
332 error (_f ("can't change working directory to: %s: %s", components[DIR],
341 main_with_guile (void *, int, char **)
343 /* Engravers use lily.scm contents, need to make Guile find it.
344 Prepend onto GUILE %load-path, very ugh. */
346 prepend_load_path (prefix_directory);
347 prepend_load_path (prefix_directory + "/scm");
349 if (be_verbose_global)
351 is_TeX_format_global = (output_backend_global == "tex"
352 || output_backend_global == "texstr");
354 is_pango_format_global = !is_TeX_format_global;
357 call_constructors ();
358 init_global_tweak_registry ();
363 all_fonts_global = new All_font_metrics (global_path.to_string ());
365 init_scheme_code_string += ")";
366 scm_c_eval_string ((char *) init_scheme_code_string.to_str0 ());
368 /* We accept multiple independent music files on the command line to
369 reduce compile time when processing lots of small files.
370 Starting the GUILE engine is very time consuming. */
374 while (char const *arg = option_parser->get_next_arg ())
376 *tail = scm_cons (scm_makfrom0str (arg), SCM_EOL);
377 tail = SCM_CDRLOC (*tail);
379 delete option_parser;
382 if (files == SCM_EOL)
384 /* No FILE arguments is now a usage error to help newbies. If you
385 want a filter, you're not a newbie and should know to use file
391 if (! jail_spec.is_empty ())
394 SCM result = scm_call_1 (ly_lily_module_constant ("lilypond-main"), files);
402 setup_localisation ()
406 setlocale (LC_ALL, "");
408 /* FIXME: check if this is still true.
409 Disable localisation of float values. This breaks TeX output. */
410 setlocale (LC_NUMERIC, "C");
412 String name (PACKAGE);
414 bindtextdomain (name.to_str0 (), LOCALEDIR);
415 textdomain (name.to_str0 ());
420 add_output_format (String format)
422 if (output_format_global != "")
423 output_format_global += ",";
424 output_format_global += format;
428 parse_argv (int argc, char **argv)
430 bool show_help = false;
431 option_parser = new Getopt_long (argc, argv, options_static);
432 while (Long_option_init const *opt = (*option_parser) ())
434 switch (opt->shortname_char_)
437 if (String (opt->longname_str0_) == "png"
438 || String (opt->longname_str0_) == "pdf"
439 || String (opt->longname_str0_) == "ps"
440 || String (opt->longname_str0_) == "dvi"
441 || String (opt->longname_str0_) == "tex")
443 add_output_format (opt->longname_str0_);
445 else if (String (opt->longname_str0_) == "preview")
447 else if (String (opt->longname_str0_) == "no-pages")
457 String s = option_parser->optional_argument_str0_;
458 File_name file_name (s);
459 output_name_global = file_name.to_string ();
463 jail_spec = option_parser->optional_argument_str0_;
466 init_scheme_code_string += option_parser->optional_argument_str0_;
474 output_backend_global = option_parser->optional_argument_str0_;
478 output_format_global = option_parser->optional_argument_str0_;
482 dump_header_fieldnames_global
483 .push (option_parser->optional_argument_str0_);
486 global_path.append (option_parser->optional_argument_str0_);
489 init_name_global = option_parser->optional_argument_str0_;
495 be_verbose_global = true;
498 be_safe_global = true;
504 programming_error (to_string ("unhandled short option: %c",
505 opt->shortname_char_));
515 if (be_verbose_global)
522 main (int argc, char **argv)
524 setup_localisation ();
526 parse_argv (argc, argv);
529 scm_boot_guile (argc, argv, main_with_guile, 0);