2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "relocate.hh"
24 /* TODO: autoconf support */
26 #include <sys/types.h>
33 #include "file-name.hh"
34 #include "file-path.hh"
35 #include "international.hh"
36 #include "lily-guile.hh"
37 #include "lily-version.hh"
42 #define FRAMEWORKDIR ".."
45 sane_putenv (char const *key, const string &value, bool overwrite)
47 if (overwrite || !getenv (key))
49 string combine = string (key) + "=" + value;
50 char *s = strdup (combine.c_str ());
52 debug_output (_f ("Setting %s to %s", key, value.c_str ())
55 int retval = putenv (s);
57 unfortunately, we can't portably free S here,
58 due to various bugs in glibc prior to 2.1.1
67 set_env_file (char const *key, const string &value, bool overwrite = false)
70 return sane_putenv (key, value, overwrite);
71 else if (is_loglevel (LOG_DEBUG))
72 // this warning should only be printed in debug mode!
73 warning (_f ("no such file: %s for %s", value, key));
78 set_env_dir (char const *key, const string &value)
81 return sane_putenv (key, value, false);
82 else if (is_loglevel (LOG_DEBUG))
83 // this warning should only be printed in debug mode!
84 warning (_f ("no such directory: %s for %s", value, key));
89 prepend_env_path (char const *key, string value)
93 debug_output (_f ("%s=%s (prepend)\n", key, value.c_str ()), false);
95 if (char const *cur = getenv (key))
96 value += to_string (PATHSEP) + cur;
98 return sane_putenv (key, value.c_str (), true);
100 else if (is_loglevel (LOG_DEBUG))
101 // this warning should only be printed in debug mode
102 warning (_f ("no such directory: %s for %s", value, key));
111 prefix_relocation (const string &prefix)
113 string bindir = prefix + "/bin";
114 string datadir = prefix + "/share";
115 string localedir = datadir + "/locale";
116 string package_datadir = datadir + "/lilypond/";
117 string old_lilypond_datadir = lilypond_datadir;
119 if (is_dir (package_datadir + "/" + TOPLEVEL_VERSION))
120 lilypond_datadir = package_datadir + "/" + TOPLEVEL_VERSION;
121 else if (is_dir (package_datadir + "/current"))
122 lilypond_datadir = package_datadir + "/current";
124 warning (_f ("not relocating, no %s/ or current/ found under %s",
125 TOPLEVEL_VERSION, package_datadir.c_str ()));
128 if (is_dir (localedir))
129 bindtextdomain ("lilypond", localedir.c_str ());
132 prepend_env_path ("PATH", bindir);
134 debug_output (_f ("Relocation: compile datadir=%s, new datadir=%s",
135 old_lilypond_datadir.c_str (),
136 lilypond_datadir.c_str ()));
140 UGH : this is a complete mess.
144 framework_relocation (const string &prefix)
146 debug_output (_f ("Relocation: framework_prefix=%s", prefix));
148 sane_putenv ("INSTALLER_PREFIX", prefix, true);
150 read_relocation_dir (prefix + "/etc/relocate/");
152 string bindir = prefix + "/bin";
154 prepend_env_path ("PATH", bindir);
158 UGH : this is a complete mess.
161 setup_paths (char const *argv0_ptr)
163 File_name argv0_filename (argv0_ptr);
167 string prefix_directory;
169 if (argv0_filename.is_absolute ())
171 argv0_abs = argv0_filename.to_string ();
172 debug_output (_f ("Relocation: is absolute: argv0=%s\n", argv0_ptr));
174 else if (argv0_filename.dir_.length ())
176 argv0_abs = get_working_directory ()
177 + "/" + string (argv0_filename.to_string ());
178 debug_output (_f ("Relocation : from cwd: argv0=%s\n", argv0_ptr));
182 /* Find absolute ARGV0 name, using PATH. */
184 char *p = getenv ("PATH");
189 argv0_abs = path.find (argv0_filename.to_string ());
190 #else /* __MINGW32__ */
191 path.prepend (get_working_directory ());
192 char const *ext[] = {"exe", "", 0 };
193 argv0_abs = path.find (argv0_filename.to_string (), ext);
194 #endif /* __MINGW32__ */
196 debug_output (_f ("Relocation: from PATH=%s\nargv0=%s\n",
197 path.to_string ().c_str (), argv0_ptr), true);
199 if (argv0_abs.empty ())
200 programming_error ("cannot find absolute argv0");
203 string bindir = dir_name (argv0_abs);
204 string argv0_prefix = dir_name (bindir);
205 string compile_prefix = dir_name (dir_name (dir_name (lilypond_datadir)));
206 if (argv0_prefix != compile_prefix)
208 prefix_relocation (argv0_prefix);
209 prefix_directory = argv0_prefix;
211 if (argv0_prefix != compile_prefix || string (FRAMEWORKDIR) != "..")
213 framework_relocation (bindir + "/" + FRAMEWORKDIR);
214 prefix_directory = bindir + "/" + FRAMEWORKDIR;
217 lilypond_datadir = prefix_directory
218 + "/share/lilypond/" TOPLEVEL_VERSION;
221 if (getenv ("LILYPONDPREFIX"))
222 error (_ ("LILYPONDPREFIX is obsolete, use LILYPOND_DATADIR"));
224 if (char const *env = getenv ("LILYPOND_DATADIR"))
226 /* Normalize file name. */
227 lilypond_datadir = File_name (env).to_string ();
230 /* When running from build dir, a full LILYPOND_DATADIR is set-up at
231 $(OUTBASE)/{share, lib}/lilypond/current. Configure lily using
232 ./configure --prefix=$(pwd)/out */
233 string build_datadir_current = dir_name (lilypond_datadir) + "/current";
234 if (!is_dir (lilypond_datadir.c_str ())
235 && is_dir (build_datadir_current.c_str ()))
236 lilypond_datadir = build_datadir_current;
238 lilypond_datadir = File_name (lilypond_datadir).canonicalized ().to_string ();
240 global_path.append ("");
242 /* Adding mf/out make lilypond unchanged source directory, when setting
243 LILYPONDPREFIX to lilypond-x.y.z */
244 char const *suffixes[] = {"ly", "ps", "scm", 0 };
247 for (char const **s = suffixes; *s; s++)
249 string path = lilypond_datadir + to_string ('/') + string (*s);
250 dirs.push_back (path);
253 dirs.push_back (lilypond_datadir + "/fonts/otf/");
254 dirs.push_back (lilypond_datadir + "/fonts/type1/");
255 dirs.push_back (lilypond_datadir + "/fonts/svg/");
257 for (vsize i = 0; i < dirs.size (); i++)
258 global_path.prepend (dirs[i]);
262 expand_environment_variables (const string &orig)
264 char const *start_ptr = orig.c_str ();
265 char const *ptr = orig.c_str ();
266 size_t len = orig.length ();
269 while (ptr < start_ptr + len)
271 char const *dollar = strchr (ptr, '$');
275 char const *start_var = dollar + 1;
276 char const *end_var = start_var;
277 char const *start_next = end_var;
279 out += string (ptr, dollar - ptr);
282 if (*start_var == '{')
286 end_var = strchr (start_var, '}');
290 end_var = start_var + len;
291 start_next = end_var;
295 start_next = end_var + 1;
301 Hmm. what to do for $1 , $~ etc.?
307 while (isalnum (*end_var) || *end_var == '_');
308 start_next = end_var;
311 if (start_var < end_var)
313 string var_name (start_var, end_var - start_var);
314 char const *value = getenv (var_name.c_str ());
316 out += string (value);
331 // Ugh - very inefficient, but safer than fgets.
338 while ((c = fgetc (f)) != EOF && c != '\n')
345 read_relocation_file (const string &filename)
347 debug_output (_f ("Relocation file: %s", filename.c_str ()) + "\n");
348 char const *cname = filename.c_str ();
349 FILE *f = fopen (cname, "r");
351 error (_f ("cannot open file: `%s'", cname));
355 string line = read_line (f);
356 size_t idx = line.find (' ');
360 string command = line.substr (0, idx);
361 line = line.substr (idx + 1);
365 idx = line.find ('=');
367 string variable = line.substr (0, idx);
368 string value = line.substr (idx + 1);
370 value = expand_environment_variables (value);
372 if (command == "set")
373 sane_putenv (variable.c_str (), value, true);
374 else if (command == "setdir")
375 set_env_dir (variable.c_str (), value);
376 else if (command == "setfile")
377 set_env_file (variable.c_str (), value);
378 else if (command == "prependdir")
379 prepend_env_path (variable.c_str (), value);
381 error (_f ("Unknown relocation command %s", command));
388 read_relocation_dir (const string &dirname)
390 if (DIR *dir = opendir (dirname.c_str ()))
391 while (struct dirent *ent = readdir (dir))
393 File_name name (ent->d_name);
394 if (name.ext_ == "reloc")
395 read_relocation_file (dirname + "/" + name.to_string ());