Commit | Line | Data |
---|---|---|
c12da2be | 1 | /* Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2004, 2006, 2008, |
bc8e6d7d | 2 | * 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc. |
0f2d19dd | 3 | * |
73be1d9e | 4 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
5 | * modify it under the terms of the GNU Lesser General Public License |
6 | * as published by the Free Software Foundation; either version 3 of | |
7 | * the License, or (at your option) any later version. | |
0f2d19dd | 8 | * |
53befeb7 NJ |
9 | * This library is distributed in the hope that it will be useful, but |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
0f2d19dd | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301 USA | |
73be1d9e | 18 | */ |
1bbd0b84 | 19 | |
1bbd0b84 | 20 | |
0f2d19dd JB |
21 | \f |
22 | ||
dbb605f5 | 23 | #ifdef HAVE_CONFIG_H |
cbd41c89 RB |
24 | # include <config.h> |
25 | #endif | |
26 | ||
13070bd3 | 27 | #include <string.h> |
7d04d68b | 28 | #include <stdio.h> |
13070bd3 | 29 | |
a0599745 MD |
30 | #include "libguile/_scm.h" |
31 | #include "libguile/libpath.h" | |
32 | #include "libguile/fports.h" | |
33 | #include "libguile/read.h" | |
34 | #include "libguile/eval.h" | |
35 | #include "libguile/throw.h" | |
36 | #include "libguile/alist.h" | |
37 | #include "libguile/dynwind.h" | |
38 | #include "libguile/root.h" | |
39 | #include "libguile/strings.h" | |
f33b174d | 40 | #include "libguile/modules.h" |
7d04d68b | 41 | #include "libguile/chars.h" |
c44ca4fe | 42 | #include "libguile/srfi-13.h" |
a0599745 MD |
43 | |
44 | #include "libguile/validate.h" | |
45 | #include "libguile/load.h" | |
ec3a8ace | 46 | #include "libguile/fluids.h" |
06721500 | 47 | |
22f4ee48 AW |
48 | #include "libguile/vm.h" /* for load-compiled/vm */ |
49 | ||
06721500 JB |
50 | #include <sys/types.h> |
51 | #include <sys/stat.h> | |
06721500 | 52 | #include <unistd.h> |
06721500 | 53 | |
5b197db8 AW |
54 | #ifdef HAVE_PWD_H |
55 | #include <pwd.h> | |
56 | #endif /* HAVE_PWD_H */ | |
57 | ||
06721500 JB |
58 | #ifndef R_OK |
59 | #define R_OK 4 | |
60 | #endif | |
0f2d19dd | 61 | |
abca59fe LC |
62 | #include <stat-time.h> |
63 | ||
0f2d19dd | 64 | \f |
06721500 | 65 | /* Loading a file, given an absolute filename. */ |
0f2d19dd | 66 | |
26544b96 JB |
67 | /* Hook to run when we load a file, perhaps to announce the fact somewhere. |
68 | Applied to the full name of the file. */ | |
69 | static SCM *scm_loc_load_hook; | |
70 | ||
ec3a8ace NJ |
71 | /* The current reader (a fluid). */ |
72 | static SCM the_reader = SCM_BOOL_F; | |
8b039053 | 73 | |
ec3a8ace | 74 | |
3b3b36dd | 75 | SCM_DEFINE (scm_primitive_load, "primitive-load", 1, 0, 0, |
1bbd0b84 | 76 | (SCM filename), |
67e8151b MG |
77 | "Load the file named @var{filename} and evaluate its contents in\n" |
78 | "the top-level environment. The load paths are not searched;\n" | |
79 | "@var{filename} must either be a full pathname or be a pathname\n" | |
80 | "relative to the current directory. If the variable\n" | |
81 | "@code{%load-hook} is defined, it should be bound to a procedure\n" | |
82 | "that will be called before any code is loaded. See the\n" | |
83 | "documentation for @code{%load-hook} later in this section.") | |
1bbd0b84 | 84 | #define FUNC_NAME s_scm_primitive_load |
0f2d19dd | 85 | { |
26544b96 | 86 | SCM hook = *scm_loc_load_hook; |
017eb4a6 | 87 | SCM ret = SCM_UNSPECIFIED; |
017eb4a6 | 88 | |
a6d9e5ab | 89 | SCM_VALIDATE_STRING (1, filename); |
bc36d050 | 90 | if (scm_is_true (hook) && scm_is_false (scm_procedure_p (hook))) |
2ade72d7 DH |
91 | SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f", |
92 | SCM_EOL); | |
26544b96 | 93 | |
bc36d050 | 94 | if (!scm_is_false (hook)) |
fdc28395 | 95 | scm_call_1 (hook, filename); |
26544b96 | 96 | |
017eb4a6 AW |
97 | { |
98 | SCM port; | |
99 | ||
4101d14f MW |
100 | port = scm_open_file_with_encoding (filename, |
101 | scm_from_latin1_string ("r"), | |
102 | SCM_BOOL_T, /* guess_encoding */ | |
103 | scm_from_latin1_string ("UTF-8")); | |
104 | ||
661ae7ab MV |
105 | scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE); |
106 | scm_i_dynwind_current_load_port (port); | |
f8a1c9a8 | 107 | |
b5623573 MV |
108 | while (1) |
109 | { | |
ec3a8ace NJ |
110 | SCM reader, form; |
111 | ||
112 | /* Lookup and use the current reader to read the next | |
113 | expression. */ | |
8b039053 | 114 | reader = scm_fluid_ref (the_reader); |
393baa8a | 115 | if (scm_is_false (reader)) |
ec3a8ace NJ |
116 | form = scm_read (port); |
117 | else | |
118 | form = scm_call_1 (reader, port); | |
119 | ||
b5623573 MV |
120 | if (SCM_EOF_OBJECT_P (form)) |
121 | break; | |
ec3a8ace | 122 | |
017eb4a6 | 123 | ret = scm_primitive_eval_x (form); |
b5623573 MV |
124 | } |
125 | ||
661ae7ab | 126 | scm_dynwind_end (); |
0f2d19dd JB |
127 | scm_close_port (port); |
128 | } | |
017eb4a6 | 129 | return ret; |
0f2d19dd | 130 | } |
1bbd0b84 | 131 | #undef FUNC_NAME |
0f2d19dd | 132 | |
c519b272 MV |
133 | SCM |
134 | scm_c_primitive_load (const char *filename) | |
135 | { | |
cc95e00a | 136 | return scm_primitive_load (scm_from_locale_string (filename)); |
c519b272 MV |
137 | } |
138 | ||
0f2d19dd | 139 | \f |
3feedb00 MD |
140 | /* Builtin path to scheme library files. */ |
141 | #ifdef SCM_PKGDATA_DIR | |
a1ec6916 | 142 | SCM_DEFINE (scm_sys_package_data_dir, "%package-data-dir", 0, 0, 0, |
1bbd0b84 | 143 | (), |
b380b885 MD |
144 | "Return the name of the directory where Scheme packages, modules and\n" |
145 | "libraries are kept. On most Unix systems, this will be\n" | |
146 | "@samp{/usr/local/share/guile}.") | |
1bbd0b84 | 147 | #define FUNC_NAME s_scm_sys_package_data_dir |
3feedb00 | 148 | { |
cc95e00a | 149 | return scm_from_locale_string (SCM_PKGDATA_DIR); |
3feedb00 | 150 | } |
1bbd0b84 | 151 | #undef FUNC_NAME |
3feedb00 MD |
152 | #endif /* SCM_PKGDATA_DIR */ |
153 | ||
e8e9b690 | 154 | #ifdef SCM_LIBRARY_DIR |
a1ec6916 | 155 | SCM_DEFINE (scm_sys_library_dir, "%library-dir", 0,0,0, |
e8e9b690 | 156 | (), |
b380b885 MD |
157 | "Return the directory where the Guile Scheme library files are installed.\n" |
158 | "E.g., may return \"/usr/share/guile/1.3.5\".") | |
e8e9b690 GB |
159 | #define FUNC_NAME s_scm_sys_library_dir |
160 | { | |
cc95e00a | 161 | return scm_from_locale_string (SCM_LIBRARY_DIR); |
e8e9b690 GB |
162 | } |
163 | #undef FUNC_NAME | |
164 | #endif /* SCM_LIBRARY_DIR */ | |
165 | ||
166 | #ifdef SCM_SITE_DIR | |
a1ec6916 | 167 | SCM_DEFINE (scm_sys_site_dir, "%site-dir", 0,0,0, |
e8e9b690 | 168 | (), |
bc325e76 AW |
169 | "Return the directory where users should install Scheme code for use\n" |
170 | "with this version of Guile.\n\n" | |
171 | "E.g., may return \"/usr/share/guile/site/" SCM_EFFECTIVE_VERSION "\".") | |
e8e9b690 GB |
172 | #define FUNC_NAME s_scm_sys_site_dir |
173 | { | |
cc95e00a | 174 | return scm_from_locale_string (SCM_SITE_DIR); |
e8e9b690 GB |
175 | } |
176 | #undef FUNC_NAME | |
177 | #endif /* SCM_SITE_DIR */ | |
178 | ||
bc325e76 AW |
179 | #ifdef SCM_GLOBAL_SITE_DIR |
180 | SCM_DEFINE (scm_sys_global_site_dir, "%global-site-dir", 0,0,0, | |
181 | (), | |
182 | "Return the directory where users should install Scheme code for use\n" | |
183 | "with all versions of Guile.\n\n" | |
184 | "E.g., may return \"/usr/share/guile/site\".") | |
185 | #define FUNC_NAME s_scm_sys_global_site_dir | |
186 | { | |
187 | return scm_from_locale_string (SCM_GLOBAL_SITE_DIR); | |
188 | } | |
189 | #undef FUNC_NAME | |
190 | #endif /* SCM_GLOBAL_SITE_DIR */ | |
e8e9b690 | 191 | |
988ca6b2 JE |
192 | #ifdef SCM_SITE_CCACHE_DIR |
193 | SCM_DEFINE (scm_sys_site_ccache_dir, "%site-ccache-dir", 0,0,0, | |
194 | (), | |
195 | "Return the directory where users should install compiled\n" | |
196 | "@code{.go} files for use with this version of Guile.\n\n" | |
197 | "E.g., may return \"/usr/lib/guile/" SCM_EFFECTIVE_VERSION "/site-ccache\".") | |
198 | #define FUNC_NAME s_scm_sys_site_ccache_dir | |
199 | { | |
200 | return scm_from_locale_string (SCM_SITE_CCACHE_DIR); | |
201 | } | |
202 | #undef FUNC_NAME | |
203 | #endif /* SCM_SITE_CCACHE_DIR */ | |
204 | ||
e8e9b690 | 205 | |
3feedb00 | 206 | \f |
06721500 | 207 | /* Initializing the load path, and searching it. */ |
0f2d19dd | 208 | |
26544b96 | 209 | /* List of names of directories we search for files to load. */ |
06721500 JB |
210 | static SCM *scm_loc_load_path; |
211 | ||
26544b96 JB |
212 | /* List of extensions we try adding to the filenames. */ |
213 | static SCM *scm_loc_load_extensions; | |
214 | ||
5b197db8 AW |
215 | /* Like %load-path and %load-extensions, but for compiled files. */ |
216 | static SCM *scm_loc_load_compiled_path; | |
22f4ee48 AW |
217 | static SCM *scm_loc_load_compiled_extensions; |
218 | ||
ee001750 | 219 | /* Whether we should try to auto-compile. */ |
6f06e8d3 | 220 | static SCM *scm_loc_load_should_auto_compile; |
01cddfc1 | 221 | |
1e56cff2 AW |
222 | /* Whether to treat all auto-compiled files as stale. */ |
223 | static SCM *scm_loc_fresh_auto_compile; | |
224 | ||
6f06e8d3 | 225 | /* The fallback path for auto-compilation */ |
5ea401bf | 226 | static SCM *scm_loc_compile_fallback_path; |
01cddfc1 | 227 | |
bd31bce6 MW |
228 | /* Ellipsis: "..." */ |
229 | static SCM scm_ellipsis; | |
230 | ||
a1ec6916 | 231 | SCM_DEFINE (scm_parse_path, "parse-path", 1, 1, 0, |
1bbd0b84 | 232 | (SCM path, SCM tail), |
d91788cb MG |
233 | "Parse @var{path}, which is expected to be a colon-separated\n" |
234 | "string, into a list and return the resulting list with\n" | |
235 | "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n" | |
236 | "is returned.") | |
1bbd0b84 | 237 | #define FUNC_NAME s_scm_parse_path |
04e8fb0a | 238 | { |
7d04d68b MV |
239 | #ifdef __MINGW32__ |
240 | SCM sep = SCM_MAKE_CHAR (';'); | |
241 | #else | |
242 | SCM sep = SCM_MAKE_CHAR (':'); | |
243 | #endif | |
244 | ||
04e8fb0a MD |
245 | if (SCM_UNBNDP (tail)) |
246 | tail = SCM_EOL; | |
7888309b | 247 | return (scm_is_false (path) |
04e8fb0a | 248 | ? tail |
7d04d68b | 249 | : scm_append_x (scm_list_2 (scm_string_split (path, sep), tail))); |
04e8fb0a | 250 | } |
1bbd0b84 | 251 | #undef FUNC_NAME |
04e8fb0a | 252 | |
bd31bce6 MW |
253 | SCM_DEFINE (scm_parse_path_with_ellipsis, "parse-path-with-ellipsis", 2, 0, 0, |
254 | (SCM path, SCM base), | |
255 | "Parse @var{path}, which is expected to be a colon-separated\n" | |
256 | "string, into a list and return the resulting list with\n" | |
257 | "@var{base} (a list) spliced in place of the @code{...} path\n" | |
258 | "component, if present, or else @var{base} is added to the end.\n" | |
259 | "If @var{path} is @code{#f}, @var{base} is returned.") | |
260 | #define FUNC_NAME s_scm_parse_path_with_ellipsis | |
261 | { | |
262 | SCM lst = scm_parse_path (path, SCM_EOL); | |
263 | SCM walk = lst; | |
264 | SCM *prev = &lst; | |
265 | ||
266 | while (!scm_is_null (walk) && | |
267 | scm_is_false (scm_equal_p (scm_car (walk), scm_ellipsis))) | |
268 | { | |
269 | prev = SCM_CDRLOC (walk); | |
270 | walk = *prev; | |
271 | } | |
272 | *prev = scm_is_null (walk) | |
273 | ? base | |
274 | : scm_append (scm_list_2 (base, scm_cdr (walk))); | |
275 | return lst; | |
276 | } | |
277 | #undef FUNC_NAME | |
278 | ||
9235f805 EZ |
279 | /* On Posix hosts, just return PATH unaltered. On Windows, |
280 | destructively replace all backslashes in PATH with Unix-style | |
281 | forward slashes, so that Scheme code always gets d:/foo/bar style | |
282 | file names. This avoids multiple subtle problems with comparing | |
283 | file names as strings, and with redirections in /bin/sh command | |
284 | lines. | |
285 | ||
286 | Note that, if PATH is result of a call to 'getenv', this | |
287 | destructively modifies the environment variables, so both | |
288 | scm_getenv and subprocesses will afterwards see the values with | |
289 | forward slashes. That is OK as long as applied to Guile-specific | |
290 | environment variables, since having scm_getenv return the same | |
291 | value as used by the callers of this function is good for | |
292 | consistency and file-name comparison. Avoid using this function on | |
293 | values returned by 'getenv' for general-purpose environment | |
294 | variables; instead, make a copy of the value and work on that. */ | |
295 | SCM_INTERNAL char * | |
296 | scm_i_mirror_backslashes (char *path) | |
297 | { | |
298 | #ifdef __MINGW32__ | |
299 | if (path) | |
300 | { | |
301 | char *p = path; | |
302 | ||
303 | while (*p) | |
304 | { | |
305 | if (*p == '\\') | |
306 | *p = '/'; | |
307 | p++; | |
308 | } | |
309 | } | |
310 | #endif | |
311 | ||
312 | return path; | |
313 | } | |
04e8fb0a | 314 | |
06721500 | 315 | /* Initialize the global variable %load-path, given the value of the |
3feedb00 | 316 | SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the |
01cddfc1 | 317 | GUILE_LOAD_PATH environment variable. */ |
0f2d19dd | 318 | void |
06721500 JB |
319 | scm_init_load_path () |
320 | { | |
11c5e0bf | 321 | char *env; |
06721500 | 322 | SCM path = SCM_EOL; |
5b197db8 | 323 | SCM cpath = SCM_EOL; |
06721500 | 324 | |
3feedb00 | 325 | #ifdef SCM_LIBRARY_DIR |
9235f805 | 326 | env = scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_PATH")); |
02b84691 AW |
327 | if (env && strcmp (env, "") == 0) |
328 | /* special-case interpret system-path=="" as meaning no system path instead | |
329 | of '("") */ | |
330 | ; | |
331 | else if (env) | |
332 | path = scm_parse_path (scm_from_locale_string (env), path); | |
333 | else | |
bc325e76 | 334 | path = scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR), |
3c98a49c | 335 | scm_from_locale_string (SCM_SITE_DIR), |
bc325e76 | 336 | scm_from_locale_string (SCM_GLOBAL_SITE_DIR), |
02b84691 | 337 | scm_from_locale_string (SCM_PKGDATA_DIR)); |
5b197db8 | 338 | |
9235f805 | 339 | env = scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_COMPILED_PATH")); |
5b197db8 AW |
340 | if (env && strcmp (env, "") == 0) |
341 | /* like above */ | |
342 | ; | |
343 | else if (env) | |
344 | cpath = scm_parse_path (scm_from_locale_string (env), cpath); | |
345 | else | |
9957641b AW |
346 | { |
347 | cpath = scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR), | |
348 | scm_from_locale_string (SCM_SITE_CCACHE_DIR)); | |
349 | } | |
3c997c4b | 350 | |
3feedb00 | 351 | #endif /* SCM_LIBRARY_DIR */ |
06721500 | 352 | |
3c997c4b | 353 | { |
179fe336 AW |
354 | char cachedir[1024]; |
355 | char *e; | |
356 | #ifdef HAVE_GETPWENT | |
357 | struct passwd *pwd; | |
358 | #endif | |
5b197db8 | 359 | |
6e5c02b8 AW |
360 | #define FALLBACK_DIR \ |
361 | "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING | |
179fe336 AW |
362 | |
363 | if ((e = getenv ("XDG_CACHE_HOME"))) | |
48a0fe4d | 364 | snprintf (cachedir, sizeof(cachedir), "%s/" FALLBACK_DIR, e); |
179fe336 AW |
365 | else if ((e = getenv ("HOME"))) |
366 | snprintf (cachedir, sizeof(cachedir), "%s/.cache/" FALLBACK_DIR, e); | |
5b197db8 | 367 | #ifdef HAVE_GETPWENT |
179fe336 AW |
368 | else if ((pwd = getpwuid (getuid ())) && pwd->pw_dir) |
369 | snprintf (cachedir, sizeof(cachedir), "%s/.cache/" FALLBACK_DIR, | |
370 | pwd->pw_dir); | |
5b197db8 | 371 | #endif /* HAVE_GETPWENT */ |
284019a2 JN |
372 | #ifdef __MINGW32__ |
373 | else if ((e = getenv ("LOCALAPPDATA"))) | |
374 | snprintf (cachedir, sizeof (cachedir), "%s/.cache/" FALLBACK_DIR, e); | |
375 | else if ((e = getenv ("APPDATA"))) | |
376 | snprintf (cachedir, sizeof (cachedir), "%s/.cache/" FALLBACK_DIR, e); | |
377 | #endif /* __MINGW32__ */ | |
179fe336 AW |
378 | else |
379 | cachedir[0] = 0; | |
380 | ||
381 | if (cachedir[0]) | |
9235f805 EZ |
382 | { |
383 | scm_i_mirror_backslashes (cachedir); | |
384 | *scm_loc_compile_fallback_path = scm_from_locale_string (cachedir); | |
385 | } | |
3c997c4b | 386 | } |
06721500 | 387 | |
9235f805 | 388 | env = scm_i_mirror_backslashes (getenv ("GUILE_LOAD_PATH")); |
11c5e0bf | 389 | if (env) |
bd31bce6 | 390 | path = scm_parse_path_with_ellipsis (scm_from_locale_string (env), path); |
01cddfc1 | 391 | |
9235f805 | 392 | env = scm_i_mirror_backslashes (getenv ("GUILE_LOAD_COMPILED_PATH")); |
5b197db8 | 393 | if (env) |
bd31bce6 | 394 | cpath = scm_parse_path_with_ellipsis (scm_from_locale_string (env), cpath); |
5b197db8 | 395 | |
06721500 | 396 | *scm_loc_load_path = path; |
5b197db8 | 397 | *scm_loc_load_compiled_path = cpath; |
06721500 JB |
398 | } |
399 | ||
04e8fb0a | 400 | SCM scm_listofnullstr; |
06721500 | 401 | |
7d04d68b MV |
402 | /* Utility functions for assembling C strings in a buffer. |
403 | */ | |
404 | ||
a7bbba05 LC |
405 | struct stringbuf |
406 | { | |
7d04d68b MV |
407 | char *buf, *ptr; |
408 | size_t buf_len; | |
409 | }; | |
410 | ||
7d04d68b MV |
411 | static void |
412 | stringbuf_grow (struct stringbuf *buf) | |
413 | { | |
a7bbba05 LC |
414 | size_t ptroff, prev_len; |
415 | void *prev_buf = buf->buf; | |
416 | ||
417 | prev_len = buf->buf_len; | |
418 | ptroff = buf->ptr - buf->buf; | |
419 | ||
420 | buf->buf_len *= 2; | |
421 | buf->buf = scm_gc_malloc_pointerless (buf->buf_len, "search-path"); | |
422 | memcpy (buf->buf, prev_buf, prev_len); | |
7d04d68b MV |
423 | buf->ptr = buf->buf + ptroff; |
424 | } | |
425 | ||
426 | static void | |
427 | stringbuf_cat_locale_string (struct stringbuf *buf, SCM str) | |
428 | { | |
429 | size_t max_len = buf->buf_len - (buf->ptr - buf->buf) - 1; | |
430 | size_t len = scm_to_locale_stringbuf (str, buf->ptr, max_len); | |
431 | if (len > max_len) | |
432 | { | |
433 | /* buffer is too small, double its size and try again. | |
434 | */ | |
435 | stringbuf_grow (buf); | |
436 | stringbuf_cat_locale_string (buf, str); | |
437 | } | |
438 | else | |
439 | { | |
440 | /* string fits, terminate it and check for embedded '\0'. | |
441 | */ | |
442 | buf->ptr[len] = '\0'; | |
443 | if (strlen (buf->ptr) != len) | |
444 | scm_misc_error (NULL, | |
445 | "string contains #\\nul character: ~S", | |
446 | scm_list_1 (str)); | |
447 | buf->ptr += len; | |
448 | } | |
449 | } | |
450 | ||
451 | static void | |
452 | stringbuf_cat (struct stringbuf *buf, char *str) | |
453 | { | |
454 | size_t max_len = buf->buf_len - (buf->ptr - buf->buf) - 1; | |
455 | size_t len = strlen (str); | |
456 | if (len > max_len) | |
457 | { | |
458 | /* buffer is too small, double its size and try again. | |
459 | */ | |
460 | stringbuf_grow (buf); | |
461 | stringbuf_cat (buf, str); | |
462 | } | |
463 | else | |
464 | { | |
465 | /* string fits, copy it into buffer. | |
466 | */ | |
467 | strcpy (buf->ptr, str); | |
468 | buf->ptr += len; | |
469 | } | |
470 | } | |
471 | ||
9c5d6aa9 LC |
472 | /* Return non-zero if STR is suffixed by a dot followed by one of |
473 | EXTENSIONS. */ | |
22f4ee48 | 474 | static int |
9c5d6aa9 | 475 | string_has_an_ext (SCM str, SCM extensions) |
22f4ee48 AW |
476 | { |
477 | for (; !scm_is_null (extensions); extensions = SCM_CDR (extensions)) | |
478 | { | |
9c5d6aa9 LC |
479 | SCM extension; |
480 | ||
481 | extension = SCM_CAR (extensions); | |
482 | if (scm_is_true (scm_string_suffix_p (extension, str, | |
483 | SCM_UNDEFINED, SCM_UNDEFINED, | |
484 | SCM_UNDEFINED, SCM_UNDEFINED))) | |
485 | return 1; | |
22f4ee48 | 486 | } |
9c5d6aa9 | 487 | |
22f4ee48 AW |
488 | return 0; |
489 | } | |
490 | ||
9235f805 EZ |
491 | /* Defined as "/" for Unix and Windows alike, so that file names |
492 | constructed by the functions in this module wind up with Unix-style | |
493 | forward slashes as directory separators. */ | |
4bab7f01 | 494 | #define FILE_NAME_SEPARATOR_STRING "/" |
4bab7f01 AW |
495 | |
496 | static int | |
497 | is_file_name_separator (SCM c) | |
498 | { | |
e6a7a86d | 499 | if (scm_is_eq (c, SCM_MAKE_CHAR ('/'))) |
4bab7f01 AW |
500 | return 1; |
501 | #ifdef __MINGW32__ | |
e6a7a86d | 502 | if (scm_is_eq (c, SCM_MAKE_CHAR ('\\'))) |
4bab7f01 AW |
503 | return 1; |
504 | #endif | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static int | |
509 | is_drive_letter (SCM c) | |
510 | { | |
511 | #ifdef __MINGW32__ | |
512 | if (SCM_CHAR (c) >= 'a' && SCM_CHAR (c) <= 'z') | |
513 | return 1; | |
514 | else if (SCM_CHAR (c) >= 'A' && SCM_CHAR (c) <= 'Z') | |
515 | return 1; | |
516 | #endif | |
517 | return 0; | |
518 | } | |
519 | ||
520 | static int | |
e20cec74 | 521 | is_absolute_file_name (SCM filename) |
4bab7f01 | 522 | { |
e20cec74 AW |
523 | size_t filename_len = scm_c_string_length (filename); |
524 | ||
4bab7f01 | 525 | if (filename_len >= 1 |
e20cec74 | 526 | && is_file_name_separator (scm_c_string_ref (filename, 0)) |
4bab7f01 AW |
527 | #ifdef __MINGW32__ |
528 | /* On Windows, one initial separator indicates a drive-relative | |
529 | path. Two separators indicate a Universal Naming Convention | |
530 | (UNC) path. UNC paths are always absolute. */ | |
531 | && filename_len >= 2 | |
e20cec74 | 532 | && is_file_name_separator (scm_c_string_ref (filename, 1)) |
4bab7f01 AW |
533 | #endif |
534 | ) | |
535 | return 1; | |
536 | if (filename_len >= 3 | |
e20cec74 AW |
537 | && is_drive_letter (scm_c_string_ref (filename, 0)) |
538 | && scm_is_eq (scm_c_string_ref (filename, 1), SCM_MAKE_CHAR (':')) | |
539 | && is_file_name_separator (scm_c_string_ref (filename, 2))) | |
4bab7f01 AW |
540 | return 1; |
541 | return 0; | |
542 | } | |
543 | ||
04e8fb0a | 544 | /* Search PATH for a directory containing a file named FILENAME. |
06721500 | 545 | The file must be readable, and not a directory. |
c12da2be | 546 | If we find one, return its full pathname; otherwise, return #f. |
56384176 | 547 | If FILENAME is absolute, return it unchanged. |
c12da2be | 548 | We also fill *stat_buf corresponding to the returned pathname. |
56384176 JB |
549 | If given, EXTENSIONS is a list of strings; for each directory |
550 | in PATH, we search for FILENAME concatenated with each EXTENSION. */ | |
a6e1e050 AW |
551 | static SCM |
552 | search_path (SCM path, SCM filename, SCM extensions, SCM require_exts, | |
553 | struct stat *stat_buf) | |
06721500 | 554 | { |
7d04d68b | 555 | struct stringbuf buf; |
56384176 | 556 | char *filename_chars; |
7d04d68b MV |
557 | size_t filename_len; |
558 | SCM result = SCM_BOOL_F; | |
a7bbba05 | 559 | char initial_buffer[256]; |
06721500 | 560 | |
a6e1e050 AW |
561 | if (scm_ilength (path) < 0) |
562 | scm_misc_error ("%search-path", "path is not a proper list: ~a", | |
563 | scm_list_1 (path)); | |
564 | if (scm_ilength (extensions) < 0) | |
565 | scm_misc_error ("%search-path", "bad extensions list: ~a", | |
566 | scm_list_1 (extensions)); | |
22f4ee48 | 567 | |
661ae7ab | 568 | scm_dynwind_begin (0); |
7d04d68b MV |
569 | |
570 | filename_chars = scm_to_locale_string (filename); | |
571 | filename_len = strlen (filename_chars); | |
661ae7ab | 572 | scm_dynwind_free (filename_chars); |
06721500 | 573 | |
c12da2be | 574 | /* If FILENAME is absolute and is still valid, return it unchanged. */ |
e20cec74 | 575 | if (is_absolute_file_name (filename)) |
7d04d68b | 576 | { |
c12da2be | 577 | if ((scm_is_false (require_exts) || |
9c5d6aa9 | 578 | string_has_an_ext (filename, extensions)) |
c12da2be MW |
579 | && stat (filename_chars, stat_buf) == 0 |
580 | && !(stat_buf->st_mode & S_IFDIR)) | |
581 | result = filename; | |
582 | goto end; | |
7d04d68b | 583 | } |
26544b96 | 584 | |
56384176 JB |
585 | /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */ |
586 | { | |
587 | char *endp; | |
588 | ||
589 | for (endp = filename_chars + filename_len - 1; | |
590 | endp >= filename_chars; | |
591 | endp--) | |
592 | { | |
593 | if (*endp == '.') | |
594 | { | |
22f4ee48 | 595 | if (scm_is_true (require_exts) && |
9c5d6aa9 | 596 | !string_has_an_ext (filename, extensions)) |
22f4ee48 AW |
597 | { |
598 | /* This filename has an extension, but not one of the right | |
599 | ones... */ | |
c12da2be | 600 | goto end; |
22f4ee48 | 601 | } |
56384176 JB |
602 | /* This filename already has an extension, so cancel the |
603 | list of extensions. */ | |
604 | extensions = SCM_EOL; | |
605 | break; | |
606 | } | |
4bab7f01 | 607 | else if (is_file_name_separator (SCM_MAKE_CHAR (*endp))) |
56384176 JB |
608 | /* This filename has no extension, so keep the current list |
609 | of extensions. */ | |
610 | break; | |
611 | } | |
612 | } | |
613 | ||
7d04d68b MV |
614 | /* This simplifies the loop below a bit. |
615 | */ | |
d2e53ed6 | 616 | if (scm_is_null (extensions)) |
7d04d68b | 617 | extensions = scm_listofnullstr; |
06721500 | 618 | |
a7bbba05 LC |
619 | buf.buf_len = sizeof initial_buffer; |
620 | buf.buf = initial_buffer; | |
0a74e31d | 621 | |
7d04d68b MV |
622 | /* Try every path element. |
623 | */ | |
d2e53ed6 | 624 | for (; scm_is_pair (path); path = SCM_CDR (path)) |
7d04d68b MV |
625 | { |
626 | SCM dir = SCM_CAR (path); | |
627 | SCM exts; | |
628 | size_t sans_ext_len; | |
629 | ||
630 | buf.ptr = buf.buf; | |
631 | stringbuf_cat_locale_string (&buf, dir); | |
632 | ||
633 | /* Concatenate the path name and the filename. */ | |
634 | ||
4bab7f01 AW |
635 | if (buf.ptr > buf.buf |
636 | && !is_file_name_separator (SCM_MAKE_CHAR (buf.ptr[-1]))) | |
637 | stringbuf_cat (&buf, FILE_NAME_SEPARATOR_STRING); | |
7d04d68b MV |
638 | |
639 | stringbuf_cat (&buf, filename_chars); | |
640 | sans_ext_len = buf.ptr - buf.buf; | |
641 | ||
642 | /* Try every extension. */ | |
d2e53ed6 | 643 | for (exts = extensions; scm_is_pair (exts); exts = SCM_CDR (exts)) |
7d04d68b MV |
644 | { |
645 | SCM ext = SCM_CAR (exts); | |
7d04d68b MV |
646 | |
647 | buf.ptr = buf.buf + sans_ext_len; | |
648 | stringbuf_cat_locale_string (&buf, ext); | |
649 | ||
650 | /* If the file exists at all, we should return it. If the | |
651 | file is inaccessible, then that's an error. */ | |
652 | ||
a6e1e050 AW |
653 | if (stat (buf.buf, stat_buf) == 0 |
654 | && ! (stat_buf->st_mode & S_IFDIR)) | |
7d04d68b | 655 | { |
c6a7930b EZ |
656 | result = |
657 | scm_from_locale_string (scm_i_mirror_backslashes (buf.buf)); | |
7d04d68b MV |
658 | goto end; |
659 | } | |
660 | } | |
661 | ||
662 | if (!SCM_NULL_OR_NIL_P (exts)) | |
663 | scm_wrong_type_arg_msg (NULL, 0, extensions, "proper list"); | |
664 | } | |
56384176 | 665 | |
7d04d68b MV |
666 | if (!SCM_NULL_OR_NIL_P (path)) |
667 | scm_wrong_type_arg_msg (NULL, 0, path, "proper list"); | |
56384176 | 668 | |
7d04d68b | 669 | end: |
661ae7ab | 670 | scm_dynwind_end (); |
7d04d68b | 671 | return result; |
06721500 | 672 | } |
a6e1e050 AW |
673 | |
674 | SCM_DEFINE (scm_search_path, "search-path", 2, 0, 1, | |
675 | (SCM path, SCM filename, SCM rest), | |
676 | "Search @var{path} for a directory containing a file named\n" | |
677 | "@var{filename}. The file must be readable, and not a directory.\n" | |
678 | "If we find one, return its full filename; otherwise, return\n" | |
679 | "@code{#f}. If @var{filename} is absolute, return it unchanged.\n" | |
b7e64f8b | 680 | "If given, @var{rest} is a list of extension strings; for each\n" |
a6e1e050 | 681 | "directory in @var{path}, we search for @var{filename}\n" |
b7e64f8b | 682 | "concatenated with each extension.") |
a6e1e050 AW |
683 | #define FUNC_NAME s_scm_search_path |
684 | { | |
685 | SCM extensions, require_exts; | |
686 | struct stat stat_buf; | |
687 | ||
688 | if (SCM_UNBNDP (rest) || scm_is_null (rest)) | |
689 | { | |
690 | /* Called either by Scheme code that didn't provide the optional | |
691 | arguments, or C code that used the Guile 1.8 signature (2 required, | |
692 | 1 optional arg) and passed '() or nothing as the EXTENSIONS | |
693 | argument. */ | |
694 | extensions = SCM_EOL; | |
695 | require_exts = SCM_UNDEFINED; | |
696 | } | |
697 | else | |
698 | { | |
699 | if (scm_is_null (SCM_CAR (rest)) || scm_is_pair (SCM_CAR (rest))) | |
700 | { | |
701 | /* Called by Scheme code written for 1.9. */ | |
702 | extensions = SCM_CAR (rest); | |
703 | if (scm_is_null (SCM_CDR (rest))) | |
704 | require_exts = SCM_UNDEFINED; | |
705 | else | |
706 | { | |
707 | require_exts = SCM_CADR (rest); | |
708 | if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest)))) | |
709 | scm_wrong_num_args (scm_from_locale_string (FUNC_NAME)); | |
710 | } | |
711 | } | |
712 | else | |
713 | { | |
714 | /* Called by C code that uses the 1.8 signature, i.e., which | |
715 | expects the 3rd argument to be EXTENSIONS. */ | |
716 | extensions = rest; | |
717 | require_exts = SCM_UNDEFINED; | |
718 | } | |
719 | } | |
720 | ||
721 | if (SCM_UNBNDP (extensions)) | |
722 | extensions = SCM_EOL; | |
723 | ||
724 | if (SCM_UNBNDP (require_exts)) | |
725 | require_exts = SCM_BOOL_F; | |
726 | ||
727 | return search_path (path, filename, extensions, require_exts, &stat_buf); | |
728 | } | |
1bbd0b84 | 729 | #undef FUNC_NAME |
06721500 JB |
730 | |
731 | ||
04e8fb0a MD |
732 | /* Search %load-path for a directory containing a file named FILENAME. |
733 | The file must be readable, and not a directory. | |
734 | If we find one, return its full filename; otherwise, return #f. | |
735 | If FILENAME is absolute, return it unchanged. */ | |
3b3b36dd | 736 | SCM_DEFINE (scm_sys_search_load_path, "%search-load-path", 1, 0, 0, |
67e8151b MG |
737 | (SCM filename), |
738 | "Search @var{%load-path} for the file named @var{filename},\n" | |
739 | "which must be readable by the current user. If @var{filename}\n" | |
740 | "is found in the list of paths to search or is an absolute\n" | |
741 | "pathname, return its full pathname. Otherwise, return\n" | |
742 | "@code{#f}. Filenames may have any of the optional extensions\n" | |
743 | "in the @code{%load-extensions} list; @code{%search-load-path}\n" | |
744 | "will try each extension automatically.") | |
1bbd0b84 | 745 | #define FUNC_NAME s_scm_sys_search_load_path |
04e8fb0a | 746 | { |
a6e1e050 AW |
747 | struct stat stat_buf; |
748 | ||
a6d9e5ab | 749 | SCM_VALIDATE_STRING (1, filename); |
1bbd0b84 | 750 | |
a6e1e050 AW |
751 | return search_path (*scm_loc_load_path, filename, *scm_loc_load_extensions, |
752 | SCM_BOOL_F, &stat_buf); | |
04e8fb0a | 753 | } |
1bbd0b84 | 754 | #undef FUNC_NAME |
04e8fb0a MD |
755 | |
756 | ||
abca59fe | 757 | /* Return true if COMPILED_FILENAME is newer than source file |
a6e1e050 | 758 | FULL_FILENAME, false otherwise. */ |
1d022387 | 759 | static int |
a6e1e050 AW |
760 | compiled_is_fresh (SCM full_filename, SCM compiled_filename, |
761 | struct stat *stat_source, struct stat *stat_compiled) | |
1d022387 | 762 | { |
722a4fb9 | 763 | int compiled_is_newer; |
a6e1e050 | 764 | struct timespec source_mtime, compiled_mtime; |
1d022387 | 765 | |
a6e1e050 AW |
766 | source_mtime = get_stat_mtime (stat_source); |
767 | compiled_mtime = get_stat_mtime (stat_compiled); | |
fefd60ba | 768 | |
a6e1e050 AW |
769 | if (source_mtime.tv_sec < compiled_mtime.tv_sec |
770 | || (source_mtime.tv_sec == compiled_mtime.tv_sec | |
771 | && source_mtime.tv_nsec <= compiled_mtime.tv_nsec)) | |
772 | compiled_is_newer = 1; | |
773 | else | |
1d022387 | 774 | { |
a6e1e050 | 775 | compiled_is_newer = 0; |
0607ebbf | 776 | scm_puts_unlocked (";;; note: source file ", scm_current_error_port ()); |
a6e1e050 | 777 | scm_display (full_filename, scm_current_error_port ()); |
0607ebbf | 778 | scm_puts_unlocked ("\n;;; newer than compiled ", scm_current_error_port ()); |
a6e1e050 | 779 | scm_display (compiled_filename, scm_current_error_port ()); |
0607ebbf | 780 | scm_puts_unlocked ("\n", scm_current_error_port ()); |
1d022387 | 781 | } |
abca59fe LC |
782 | |
783 | return compiled_is_newer; | |
1d022387 AW |
784 | } |
785 | ||
87c595c7 | 786 | SCM_KEYWORD (kw_env, "env"); |
5a79300f LC |
787 | SCM_KEYWORD (kw_opts, "opts"); |
788 | ||
789 | SCM_SYMBOL (sym_compile_file, "compile-file"); | |
790 | SCM_SYMBOL (sym_auto_compilation_options, "%auto-compilation-options"); | |
87c595c7 | 791 | |
1d022387 | 792 | static SCM |
6f06e8d3 | 793 | do_try_auto_compile (void *data) |
1d022387 | 794 | { |
21041372 | 795 | SCM source = SCM_PACK_POINTER (data); |
3c997c4b | 796 | SCM comp_mod, compile_file; |
ee001750 | 797 | |
0607ebbf | 798 | scm_puts_unlocked (";;; compiling ", scm_current_error_port ()); |
3c997c4b | 799 | scm_display (source, scm_current_error_port ()); |
ee001750 AW |
800 | scm_newline (scm_current_error_port ()); |
801 | ||
802 | comp_mod = scm_c_resolve_module ("system base compile"); | |
5a79300f | 803 | compile_file = scm_module_variable (comp_mod, sym_compile_file); |
ee001750 | 804 | |
3c997c4b AW |
805 | if (scm_is_true (compile_file)) |
806 | { | |
87c595c7 | 807 | /* Auto-compile in the context of the current module. */ |
5a79300f LC |
808 | SCM res, opts; |
809 | SCM args[5]; | |
810 | ||
811 | opts = scm_module_variable (scm_the_root_module (), | |
812 | sym_auto_compilation_options); | |
813 | if (SCM_VARIABLEP (opts)) | |
814 | opts = SCM_VARIABLE_REF (opts); | |
815 | else | |
816 | opts = SCM_EOL; | |
817 | ||
818 | args[0] = source; | |
819 | args[1] = kw_opts; | |
820 | args[2] = opts; | |
821 | args[3] = kw_env; | |
822 | args[4] = scm_current_module (); | |
823 | ||
824 | /* Assume `*current-warning-prefix*' has an appropriate value. */ | |
825 | res = scm_call_n (scm_variable_ref (compile_file), args, 5); | |
826 | ||
0607ebbf | 827 | scm_puts_unlocked (";;; compiled ", scm_current_error_port ()); |
3c997c4b AW |
828 | scm_display (res, scm_current_error_port ()); |
829 | scm_newline (scm_current_error_port ()); | |
830 | return res; | |
831 | } | |
832 | else | |
833 | { | |
0607ebbf | 834 | scm_puts_unlocked (";;; it seems ", scm_current_error_port ()); |
3c997c4b | 835 | scm_display (source, scm_current_error_port ()); |
0607ebbf | 836 | scm_puts_unlocked ("\n;;; is part of the compiler; skipping auto-compilation\n", |
3c997c4b AW |
837 | scm_current_error_port ()); |
838 | return SCM_BOOL_F; | |
839 | } | |
ee001750 AW |
840 | } |
841 | ||
842 | static SCM | |
6f06e8d3 | 843 | auto_compile_catch_handler (void *data, SCM tag, SCM throw_args) |
ee001750 | 844 | { |
21041372 | 845 | SCM source = SCM_PACK_POINTER (data); |
669ea4eb AW |
846 | SCM oport, lines; |
847 | ||
848 | oport = scm_open_output_string (); | |
849 | scm_print_exception (oport, SCM_BOOL_F, tag, throw_args); | |
850 | ||
04ec290f | 851 | scm_puts_unlocked (";;; WARNING: compilation of ", scm_current_warning_port ()); |
2c27dd57 | 852 | scm_display (source, scm_current_warning_port ()); |
04ec290f | 853 | scm_puts_unlocked (" failed:\n", scm_current_warning_port ()); |
669ea4eb AW |
854 | |
855 | lines = scm_string_split (scm_get_output_string (oport), | |
856 | SCM_MAKE_CHAR ('\n')); | |
857 | for (; scm_is_pair (lines); lines = scm_cdr (lines)) | |
858 | if (scm_c_string_length (scm_car (lines))) | |
859 | { | |
04ec290f | 860 | scm_puts_unlocked (";;; ", scm_current_warning_port ()); |
2c27dd57 AW |
861 | scm_display (scm_car (lines), scm_current_warning_port ()); |
862 | scm_newline (scm_current_warning_port ()); | |
669ea4eb AW |
863 | } |
864 | ||
865 | scm_close_port (oport); | |
866 | ||
1d022387 AW |
867 | return SCM_BOOL_F; |
868 | } | |
869 | ||
6f06e8d3 | 870 | SCM_DEFINE (scm_sys_warn_auto_compilation_enabled, "%warn-auto-compilation-enabled", 0, 0, 0, |
9591a2b0 | 871 | (void), "") |
6f06e8d3 | 872 | #define FUNC_NAME s_scm_sys_warn_auto_compilation_enabled |
ee001750 AW |
873 | { |
874 | static int message_shown = 0; | |
ee001750 AW |
875 | |
876 | if (!message_shown) | |
877 | { | |
0607ebbf | 878 | scm_puts_unlocked (";;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0\n" |
6f06e8d3 | 879 | ";;; or pass the --no-auto-compile argument to disable.\n", |
2c27dd57 | 880 | scm_current_warning_port ()); |
ee001750 AW |
881 | message_shown = 1; |
882 | } | |
883 | ||
9591a2b0 AW |
884 | return SCM_UNSPECIFIED; |
885 | } | |
15058484 | 886 | #undef FUNC_NAME |
9591a2b0 | 887 | |
9591a2b0 | 888 | static SCM |
6f06e8d3 | 889 | scm_try_auto_compile (SCM source) |
9591a2b0 | 890 | { |
6f06e8d3 | 891 | if (scm_is_false (*scm_loc_load_should_auto_compile)) |
9591a2b0 AW |
892 | return SCM_BOOL_F; |
893 | ||
6f06e8d3 | 894 | scm_sys_warn_auto_compilation_enabled (); |
ee001750 | 895 | return scm_c_catch (SCM_BOOL_T, |
6f06e8d3 | 896 | do_try_auto_compile, |
21041372 | 897 | SCM_UNPACK_POINTER (source), |
6f06e8d3 | 898 | auto_compile_catch_handler, |
21041372 | 899 | SCM_UNPACK_POINTER (source), |
ee001750 AW |
900 | NULL, NULL); |
901 | } | |
902 | ||
4bab7f01 AW |
903 | /* The auto-compilation code will residualize a .go file in the cache |
904 | dir: by default, $HOME/.cache/guile/2.0/ccache/PATH.go. This | |
905 | function determines the PATH to use as a key into the compilation | |
906 | cache. See also (system base compile):compiled-file-name. */ | |
6934d9e7 | 907 | static SCM |
e4f6e855 | 908 | canonical_suffix (SCM fname) |
6934d9e7 | 909 | { |
e4f6e855 | 910 | SCM canon; |
e4f6e855 | 911 | |
4bab7f01 | 912 | /* CANON should be absolute. */ |
e4f6e855 | 913 | canon = scm_canonicalize_path (fname); |
9235f805 | 914 | |
4bab7f01 AW |
915 | #ifdef __MINGW32__ |
916 | { | |
917 | size_t len = scm_c_string_length (canon); | |
918 | ||
919 | /* On Windows, an absolute file name that doesn't start with a | |
920 | separator starts with a drive component. Transform the drive | |
921 | component to a file name element: c:\foo -> \c\foo. */ | |
922 | if (len >= 2 | |
923 | && is_absolute_file_name (canon) | |
924 | && !is_file_name_separator (scm_c_string_ref (canon, 0))) | |
925 | return scm_string_append | |
926 | (scm_list_3 (scm_from_latin1_string (FILE_NAME_SEPARATOR_STRING), | |
927 | scm_c_substring (canon, 0, 1), | |
928 | scm_c_substring (canon, 2, len))); | |
929 | } | |
930 | #endif | |
931 | ||
932 | return canon; | |
6934d9e7 AW |
933 | } |
934 | ||
31ab99de LC |
935 | SCM_DEFINE (scm_primitive_load_path, "primitive-load-path", 0, 0, 1, |
936 | (SCM args), | |
67e8151b | 937 | "Search @var{%load-path} for the file named @var{filename} and\n" |
f6fd2c03 AW |
938 | "load it into the top-level environment.\n\n" |
939 | "If @var{filename} is a relative pathname and is not found in\n" | |
940 | "the list of search paths, one of three things may happen,\n" | |
941 | "depending on the optional second argument,\n" | |
942 | "@var{exception_on_not_found}. If it is @code{#f}, @code{#f}\n" | |
943 | "will be returned. If it is a procedure, it will be called\n" | |
944 | "with no arguments. Otherwise an error is signalled.") | |
1bbd0b84 | 945 | #define FUNC_NAME s_scm_primitive_load_path |
06721500 | 946 | { |
31ab99de | 947 | SCM filename, exception_on_not_found; |
22f4ee48 | 948 | SCM full_filename, compiled_filename; |
628132c5 | 949 | int compiled_is_fallback = 0; |
dcada7d8 | 950 | SCM hook = *scm_loc_load_hook; |
a6e1e050 | 951 | struct stat stat_source, stat_compiled; |
dcada7d8 AW |
952 | |
953 | if (scm_is_true (hook) && scm_is_false (scm_procedure_p (hook))) | |
954 | SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f", | |
955 | SCM_EOL); | |
26544b96 | 956 | |
31ab99de LC |
957 | if (scm_is_string (args)) |
958 | { | |
959 | /* C code written for 1.8 and earlier expects this function to take a | |
960 | single argument (the file name). */ | |
961 | filename = args; | |
962 | exception_on_not_found = SCM_UNDEFINED; | |
963 | } | |
964 | else | |
965 | { | |
966 | /* Starting from 1.9, this function takes 1 required and 1 optional | |
967 | argument. */ | |
968 | long len; | |
969 | ||
970 | SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1, args, len); | |
971 | if (len < 1 || len > 2) | |
972 | scm_error_num_args_subr (FUNC_NAME); | |
973 | ||
974 | filename = SCM_CAR (args); | |
975 | SCM_VALIDATE_STRING (SCM_ARG1, filename); | |
976 | ||
977 | exception_on_not_found = len > 1 ? SCM_CADR (args) : SCM_UNDEFINED; | |
978 | } | |
979 | ||
0fb81f95 AW |
980 | if (SCM_UNBNDP (exception_on_not_found)) |
981 | exception_on_not_found = SCM_BOOL_T; | |
26544b96 | 982 | |
a6e1e050 AW |
983 | full_filename = search_path (*scm_loc_load_path, filename, |
984 | *scm_loc_load_extensions, SCM_BOOL_F, | |
985 | &stat_source); | |
eba5ea7a | 986 | |
88cbb421 | 987 | compiled_filename = |
a6e1e050 AW |
988 | search_path (*scm_loc_load_compiled_path, filename, |
989 | *scm_loc_load_compiled_extensions, SCM_BOOL_T, | |
990 | &stat_compiled); | |
88cbb421 | 991 | |
5ea401bf AW |
992 | if (scm_is_false (compiled_filename) |
993 | && scm_is_true (full_filename) | |
3c997c4b | 994 | && scm_is_true (*scm_loc_compile_fallback_path) |
1e56cff2 | 995 | && scm_is_false (*scm_loc_fresh_auto_compile) |
3c997c4b AW |
996 | && scm_is_pair (*scm_loc_load_compiled_extensions) |
997 | && scm_is_string (scm_car (*scm_loc_load_compiled_extensions))) | |
5ea401bf | 998 | { |
a6e1e050 AW |
999 | SCM fallback; |
1000 | char *fallback_chars; | |
1001 | ||
1002 | fallback = scm_string_append | |
3c997c4b | 1003 | (scm_list_3 (*scm_loc_compile_fallback_path, |
e4f6e855 | 1004 | canonical_suffix (full_filename), |
3c997c4b | 1005 | scm_car (*scm_loc_load_compiled_extensions))); |
a6e1e050 AW |
1006 | |
1007 | fallback_chars = scm_to_locale_string (fallback); | |
1008 | if (stat (fallback_chars, &stat_compiled) == 0) | |
628132c5 AW |
1009 | { |
1010 | compiled_filename = fallback; | |
1011 | compiled_is_fallback = 1; | |
1012 | } | |
a6e1e050 | 1013 | free (fallback_chars); |
5ea401bf AW |
1014 | } |
1015 | ||
22f4ee48 | 1016 | if (scm_is_false (full_filename) && scm_is_false (compiled_filename)) |
0fb81f95 | 1017 | { |
f6fd2c03 AW |
1018 | if (scm_is_true (scm_procedure_p (exception_on_not_found))) |
1019 | return scm_call_0 (exception_on_not_found); | |
1020 | else if (scm_is_false (exception_on_not_found)) | |
1021 | return SCM_BOOL_F; | |
1022 | else | |
0fb81f95 AW |
1023 | SCM_MISC_ERROR ("Unable to find file ~S in load path", |
1024 | scm_list_1 (filename)); | |
0fb81f95 | 1025 | } |
22f4ee48 | 1026 | |
dcada7d8 AW |
1027 | if (!scm_is_false (hook)) |
1028 | scm_call_1 (hook, (scm_is_true (full_filename) | |
1029 | ? full_filename : compiled_filename)); | |
1030 | ||
1d022387 AW |
1031 | if (scm_is_false (full_filename) |
1032 | || (scm_is_true (compiled_filename) | |
a6e1e050 AW |
1033 | && compiled_is_fresh (full_filename, compiled_filename, |
1034 | &stat_source, &stat_compiled))) | |
22f4ee48 AW |
1035 | return scm_load_compiled_with_vm (compiled_filename); |
1036 | ||
628132c5 AW |
1037 | /* Perhaps there was the installed .go that was stale, but our fallback is |
1038 | fresh. Let's try that. Duplicating code, but perhaps that's OK. */ | |
1039 | ||
1040 | if (!compiled_is_fallback | |
1041 | && scm_is_true (*scm_loc_compile_fallback_path) | |
1e56cff2 | 1042 | && scm_is_false (*scm_loc_fresh_auto_compile) |
628132c5 AW |
1043 | && scm_is_pair (*scm_loc_load_compiled_extensions) |
1044 | && scm_is_string (scm_car (*scm_loc_load_compiled_extensions))) | |
1045 | { | |
a6e1e050 AW |
1046 | SCM fallback; |
1047 | char *fallback_chars; | |
1048 | int stat_ret; | |
1049 | ||
1050 | fallback = scm_string_append | |
628132c5 | 1051 | (scm_list_3 (*scm_loc_compile_fallback_path, |
e4f6e855 | 1052 | canonical_suffix (full_filename), |
628132c5 | 1053 | scm_car (*scm_loc_load_compiled_extensions))); |
a6e1e050 AW |
1054 | |
1055 | fallback_chars = scm_to_locale_string (fallback); | |
1056 | stat_ret = stat (fallback_chars, &stat_compiled); | |
1057 | free (fallback_chars); | |
1058 | ||
1059 | if (stat_ret == 0 && compiled_is_fresh (full_filename, fallback, | |
1060 | &stat_source, &stat_compiled)) | |
628132c5 | 1061 | { |
04ec290f | 1062 | scm_puts_unlocked (";;; found fresh local cache at ", scm_current_warning_port ()); |
2c27dd57 AW |
1063 | scm_display (fallback, scm_current_warning_port ()); |
1064 | scm_newline (scm_current_warning_port ()); | |
5950cc3f | 1065 | return scm_load_compiled_with_vm (fallback); |
628132c5 | 1066 | } |
3c997c4b | 1067 | } |
628132c5 AW |
1068 | |
1069 | /* Otherwise, we bottom out here. */ | |
22f4ee48 | 1070 | { |
6f06e8d3 | 1071 | SCM freshly_compiled = scm_try_auto_compile (full_filename); |
22f4ee48 | 1072 | |
628132c5 AW |
1073 | if (scm_is_true (freshly_compiled)) |
1074 | return scm_load_compiled_with_vm (freshly_compiled); | |
22f4ee48 | 1075 | else |
628132c5 | 1076 | return scm_primitive_load (full_filename); |
22f4ee48 | 1077 | } |
06721500 | 1078 | } |
1bbd0b84 | 1079 | #undef FUNC_NAME |
06721500 | 1080 | |
c519b272 MV |
1081 | SCM |
1082 | scm_c_primitive_load_path (const char *filename) | |
1083 | { | |
31ab99de | 1084 | return scm_primitive_load_path (scm_from_locale_string (filename)); |
c519b272 MV |
1085 | } |
1086 | ||
5f161164 AW |
1087 | void |
1088 | scm_init_eval_in_scheme (void) | |
1089 | { | |
1090 | SCM eval_scm, eval_go; | |
a6e1e050 AW |
1091 | struct stat stat_source, stat_compiled; |
1092 | ||
1093 | eval_scm = search_path (*scm_loc_load_path, | |
1094 | scm_from_locale_string ("ice-9/eval.scm"), | |
1095 | SCM_EOL, SCM_BOOL_F, &stat_source); | |
1096 | eval_go = search_path (*scm_loc_load_compiled_path, | |
1097 | scm_from_locale_string ("ice-9/eval.go"), | |
1098 | SCM_EOL, SCM_BOOL_F, &stat_compiled); | |
5f161164 AW |
1099 | |
1100 | if (scm_is_true (eval_scm) && scm_is_true (eval_go) | |
a6e1e050 AW |
1101 | && compiled_is_fresh (eval_scm, eval_go, |
1102 | &stat_source, &stat_compiled)) | |
5f161164 | 1103 | scm_load_compiled_with_vm (eval_go); |
ed1bf2c8 AW |
1104 | else |
1105 | /* if we have no eval.go, we shouldn't load any compiled code at all */ | |
1106 | *scm_loc_load_compiled_path = SCM_EOL; | |
5f161164 AW |
1107 | } |
1108 | ||
06721500 | 1109 | \f |
e151bee6 | 1110 | /* Information about the build environment. */ |
06721500 | 1111 | |
d7a22073 LC |
1112 | SCM_VARIABLE_INIT (sys_host_type, "%host-type", |
1113 | scm_from_locale_string (HOST_TYPE)); | |
1114 | ||
1115 | ||
e151bee6 JB |
1116 | /* Initialize the scheme variable %guile-build-info, based on data |
1117 | provided by the Makefile, via libpath.h. */ | |
1118 | static void | |
1119 | init_build_info () | |
1120 | { | |
1121 | static struct { char *name; char *value; } info[] = SCM_BUILD_INFO; | |
86d31dfe | 1122 | SCM *loc = SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL)); |
c014a02e | 1123 | unsigned long i; |
e151bee6 JB |
1124 | |
1125 | for (i = 0; i < (sizeof (info) / sizeof (info[0])); i++) | |
cc95e00a | 1126 | { |
25d50a05 | 1127 | SCM key = scm_from_utf8_symbol (info[i].name); |
cc95e00a MV |
1128 | SCM val = scm_from_locale_string (info[i].value); |
1129 | *loc = scm_acons (key, val, *loc); | |
1130 | } | |
26ac1e3f AW |
1131 | #ifdef PACKAGE_PACKAGER |
1132 | *loc = scm_acons (scm_from_latin1_symbol ("packager"), | |
1133 | scm_from_latin1_string (PACKAGE_PACKAGER), | |
1134 | *loc); | |
1135 | #endif | |
1136 | #ifdef PACKAGE_PACKAGER_VERSION | |
1137 | *loc = scm_acons (scm_from_latin1_symbol ("packager-version"), | |
1138 | scm_from_latin1_string (PACKAGE_PACKAGER_VERSION), | |
1139 | *loc); | |
1140 | #endif | |
1141 | #ifdef PACKAGE_PACKAGER_BUG_REPORTS | |
1142 | *loc = scm_acons (scm_from_latin1_symbol ("packager-bug-reports"), | |
1143 | scm_from_latin1_string (PACKAGE_PACKAGER_BUG_REPORTS), | |
1144 | *loc); | |
1145 | #endif | |
e151bee6 JB |
1146 | } |
1147 | ||
e151bee6 | 1148 | \f |
0f2d19dd JB |
1149 | void |
1150 | scm_init_load () | |
0f2d19dd | 1151 | { |
f39448c5 | 1152 | scm_listofnullstr = scm_list_1 (scm_nullstr); |
86d31dfe | 1153 | scm_loc_load_path = SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL)); |
26544b96 | 1154 | scm_loc_load_extensions |
86d31dfe | 1155 | = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions", |
cc95e00a MV |
1156 | scm_list_2 (scm_from_locale_string (".scm"), |
1157 | scm_nullstr))); | |
5b197db8 AW |
1158 | scm_loc_load_compiled_path |
1159 | = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL)); | |
22f4ee48 AW |
1160 | scm_loc_load_compiled_extensions |
1161 | = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions", | |
1162 | scm_list_1 (scm_from_locale_string (".go")))); | |
86d31dfe | 1163 | scm_loc_load_hook = SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F)); |
06721500 | 1164 | |
5ea401bf AW |
1165 | scm_loc_compile_fallback_path |
1166 | = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F)); | |
6f06e8d3 AW |
1167 | scm_loc_load_should_auto_compile |
1168 | = SCM_VARIABLE_LOC (scm_c_define ("%load-should-auto-compile", SCM_BOOL_F)); | |
1e56cff2 AW |
1169 | scm_loc_fresh_auto_compile |
1170 | = SCM_VARIABLE_LOC (scm_c_define ("%fresh-auto-compile", SCM_BOOL_F)); | |
5ea401bf | 1171 | |
bd31bce6 MW |
1172 | scm_ellipsis = scm_from_latin1_string ("..."); |
1173 | ||
c81c2ad3 | 1174 | the_reader = scm_make_fluid_with_default (SCM_BOOL_F); |
ec3a8ace NJ |
1175 | scm_c_define("current-reader", the_reader); |
1176 | ||
a6029b97 AW |
1177 | scm_c_define ("load-compiled", |
1178 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
1179 | scm_load_compiled_with_vm)); | |
1180 | ||
e151bee6 JB |
1181 | init_build_info (); |
1182 | ||
a0599745 | 1183 | #include "libguile/load.x" |
0f2d19dd | 1184 | } |
89e00824 | 1185 | |
6128f34c | 1186 | void |
6f06e8d3 | 1187 | scm_init_load_should_auto_compile () |
6128f34c | 1188 | { |
1e56cff2 AW |
1189 | char *auto_compile = getenv ("GUILE_AUTO_COMPILE"); |
1190 | ||
1191 | if (auto_compile && strcmp (auto_compile, "0") == 0) | |
1192 | { | |
1193 | *scm_loc_load_should_auto_compile = SCM_BOOL_F; | |
1194 | *scm_loc_fresh_auto_compile = SCM_BOOL_F; | |
1195 | } | |
1196 | /* Allow "freshen" also. */ | |
1197 | else if (auto_compile && strncmp (auto_compile, "fresh", 5) == 0) | |
1198 | { | |
1199 | *scm_loc_load_should_auto_compile = SCM_BOOL_T; | |
1200 | *scm_loc_fresh_auto_compile = SCM_BOOL_T; | |
1201 | } | |
1202 | else | |
1203 | { | |
1204 | *scm_loc_load_should_auto_compile = SCM_BOOL_T; | |
1205 | *scm_loc_fresh_auto_compile = SCM_BOOL_F; | |
1206 | } | |
6128f34c AW |
1207 | } |
1208 | ||
1209 | ||
1210 | ||
89e00824 ML |
1211 | /* |
1212 | Local Variables: | |
1213 | c-file-style: "gnu" | |
1214 | End: | |
1215 | */ |