1 /* Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2004, 2006, 2008,
2 * 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
4 * This library is free software; you can redistribute it and/or
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.
9 * This library is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
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
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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"
40 #include "libguile/modules.h"
41 #include "libguile/chars.h"
42 #include "libguile/srfi-13.h"
44 #include "libguile/validate.h"
45 #include "libguile/load.h"
46 #include "libguile/fluids.h"
48 #include "libguile/vm.h" /* for load-compiled/vm */
50 #include <sys/types.h>
56 #endif /* HAVE_PWD_H */
62 #include <stat-time.h>
65 /* Loading a file, given an absolute filename. */
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
;
71 /* The current reader (a fluid). */
72 static SCM the_reader
= SCM_BOOL_F
;
75 SCM_DEFINE (scm_primitive_load
, "primitive-load", 1, 0, 0,
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.")
84 #define FUNC_NAME s_scm_primitive_load
86 SCM hook
= *scm_loc_load_hook
;
87 SCM ret
= SCM_UNSPECIFIED
;
89 SCM_VALIDATE_STRING (1, filename
);
90 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
91 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
94 if (!scm_is_false (hook
))
95 scm_call_1 (hook
, filename
);
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"));
105 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
106 scm_i_dynwind_current_load_port (port
);
112 /* Lookup and use the current reader to read the next
114 reader
= scm_fluid_ref (the_reader
);
115 if (scm_is_false (reader
))
116 form
= scm_read (port
);
118 form
= scm_call_1 (reader
, port
);
120 if (SCM_EOF_OBJECT_P (form
))
123 ret
= scm_primitive_eval_x (form
);
127 scm_close_port (port
);
134 scm_c_primitive_load (const char *filename
)
136 return scm_primitive_load (scm_from_locale_string (filename
));
140 /* Builtin path to scheme library files. */
141 #ifdef SCM_PKGDATA_DIR
142 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
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}.")
147 #define FUNC_NAME s_scm_sys_package_data_dir
149 return scm_from_locale_string (SCM_PKGDATA_DIR
);
152 #endif /* SCM_PKGDATA_DIR */
154 #ifdef SCM_LIBRARY_DIR
155 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
157 "Return the directory where the Guile Scheme library files are installed.\n"
158 "E.g., may return \"/usr/share/guile/1.3.5\".")
159 #define FUNC_NAME s_scm_sys_library_dir
161 return scm_from_locale_string (SCM_LIBRARY_DIR
);
164 #endif /* SCM_LIBRARY_DIR */
167 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
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
"\".")
172 #define FUNC_NAME s_scm_sys_site_dir
174 return scm_from_locale_string (SCM_SITE_DIR
);
177 #endif /* SCM_SITE_DIR */
179 #ifdef SCM_GLOBAL_SITE_DIR
180 SCM_DEFINE (scm_sys_global_site_dir
, "%global-site-dir", 0,0,0,
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
187 return scm_from_locale_string (SCM_GLOBAL_SITE_DIR
);
190 #endif /* SCM_GLOBAL_SITE_DIR */
192 #ifdef SCM_SITE_CCACHE_DIR
193 SCM_DEFINE (scm_sys_site_ccache_dir
, "%site-ccache-dir", 0,0,0,
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
200 return scm_from_locale_string (SCM_SITE_CCACHE_DIR
);
203 #endif /* SCM_SITE_CCACHE_DIR */
207 /* Initializing the load path, and searching it. */
209 /* List of names of directories we search for files to load. */
210 static SCM
*scm_loc_load_path
;
212 /* List of extensions we try adding to the filenames. */
213 static SCM
*scm_loc_load_extensions
;
215 /* Like %load-path and %load-extensions, but for compiled files. */
216 static SCM
*scm_loc_load_compiled_path
;
217 static SCM
*scm_loc_load_compiled_extensions
;
219 /* Whether we should try to auto-compile. */
220 static SCM
*scm_loc_load_should_auto_compile
;
222 /* Whether to treat all auto-compiled files as stale. */
223 static SCM
*scm_loc_fresh_auto_compile
;
225 /* The fallback path for auto-compilation */
226 static SCM
*scm_loc_compile_fallback_path
;
228 /* Ellipsis: "..." */
229 static SCM scm_ellipsis
;
231 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
232 (SCM path
, SCM tail
),
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"
237 #define FUNC_NAME s_scm_parse_path
240 SCM sep
= SCM_MAKE_CHAR (';');
242 SCM sep
= SCM_MAKE_CHAR (':');
245 if (SCM_UNBNDP (tail
))
247 return (scm_is_false (path
)
249 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
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
262 SCM lst
= scm_parse_path (path
, SCM_EOL
);
266 while (!scm_is_null (walk
) &&
267 scm_is_false (scm_equal_p (scm_car (walk
), scm_ellipsis
)))
269 prev
= SCM_CDRLOC (walk
);
272 *prev
= scm_is_null (walk
)
274 : scm_append (scm_list_2 (base
, scm_cdr (walk
)));
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
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. */
296 scm_i_mirror_backslashes (char *path
)
315 /* Initialize the global variable %load-path, given the value of the
316 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
317 GUILE_LOAD_PATH environment variable. */
319 scm_init_load_path ()
325 #ifdef SCM_LIBRARY_DIR
326 env
= scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_PATH"));
327 if (env
&& strcmp (env
, "") == 0)
328 /* special-case interpret system-path=="" as meaning no system path instead
332 path
= scm_parse_path (scm_from_locale_string (env
), path
);
334 path
= scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR
),
335 scm_from_locale_string (SCM_SITE_DIR
),
336 scm_from_locale_string (SCM_GLOBAL_SITE_DIR
),
337 scm_from_locale_string (SCM_PKGDATA_DIR
));
339 env
= scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_COMPILED_PATH"));
340 if (env
&& strcmp (env
, "") == 0)
344 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
347 cpath
= scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR
),
348 scm_from_locale_string (SCM_SITE_CCACHE_DIR
));
351 #endif /* SCM_LIBRARY_DIR */
360 #define FALLBACK_DIR \
361 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
363 if ((e
= getenv ("XDG_CACHE_HOME")))
364 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
365 else if ((e
= getenv ("HOME")))
366 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
368 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
369 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
371 #endif /* HAVE_GETPWENT */
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__ */
383 scm_i_mirror_backslashes (cachedir
);
384 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
388 env
= scm_i_mirror_backslashes (getenv ("GUILE_LOAD_PATH"));
390 path
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), path
);
392 env
= scm_i_mirror_backslashes (getenv ("GUILE_LOAD_COMPILED_PATH"));
394 cpath
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), cpath
);
396 *scm_loc_load_path
= path
;
397 *scm_loc_load_compiled_path
= cpath
;
400 SCM scm_listofnullstr
;
402 /* Utility functions for assembling C strings in a buffer.
411 stringbuf_free (void *data
)
413 struct stringbuf
*buf
= (struct stringbuf
*)data
;
418 stringbuf_grow (struct stringbuf
*buf
)
420 size_t ptroff
= buf
->ptr
- buf
->buf
;
422 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
423 buf
->ptr
= buf
->buf
+ ptroff
;
427 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
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
);
433 /* buffer is too small, double its size and try again.
435 stringbuf_grow (buf
);
436 stringbuf_cat_locale_string (buf
, str
);
440 /* string fits, terminate it and check for embedded '\0'.
442 buf
->ptr
[len
] = '\0';
443 if (strlen (buf
->ptr
) != len
)
444 scm_misc_error (NULL
,
445 "string contains #\\nul character: ~S",
452 stringbuf_cat (struct stringbuf
*buf
, char *str
)
454 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
455 size_t len
= strlen (str
);
458 /* buffer is too small, double its size and try again.
460 stringbuf_grow (buf
);
461 stringbuf_cat (buf
, str
);
465 /* string fits, copy it into buffer.
467 strcpy (buf
->ptr
, str
);
474 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
476 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
481 ext
= scm_to_locale_string (SCM_CAR (extensions
));
482 extlen
= strlen (ext
);
483 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
484 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
492 /* Defined as "/" for Unix and Windows alike, so that file names
493 constructed by the functions in this module wind up with Unix-style
494 forward slashes as directory separators. */
495 #define FILE_NAME_SEPARATOR_STRING "/"
498 is_file_name_separator (SCM c
)
500 if (scm_is_eq (c
, SCM_MAKE_CHAR ('/')))
503 if (scm_is_eq (c
, SCM_MAKE_CHAR ('\\')))
510 is_drive_letter (SCM c
)
513 if (SCM_CHAR (c
) >= 'a' && SCM_CHAR (c
) <= 'z')
515 else if (SCM_CHAR (c
) >= 'A' && SCM_CHAR (c
) <= 'Z')
522 is_absolute_file_name (SCM filename
)
524 size_t filename_len
= scm_c_string_length (filename
);
526 if (filename_len
>= 1
527 && is_file_name_separator (scm_c_string_ref (filename
, 0))
529 /* On Windows, one initial separator indicates a drive-relative
530 path. Two separators indicate a Universal Naming Convention
531 (UNC) path. UNC paths are always absolute. */
533 && is_file_name_separator (scm_c_string_ref (filename
, 1))
537 if (filename_len
>= 3
538 && is_drive_letter (scm_c_string_ref (filename
, 0))
539 && scm_is_eq (scm_c_string_ref (filename
, 1), SCM_MAKE_CHAR (':'))
540 && is_file_name_separator (scm_c_string_ref (filename
, 2)))
545 /* Search PATH for a directory containing a file named FILENAME.
546 The file must be readable, and not a directory.
547 If we find one, return its full pathname; otherwise, return #f.
548 If FILENAME is absolute, return it unchanged.
549 We also fill *stat_buf corresponding to the returned pathname.
550 If given, EXTENSIONS is a list of strings; for each directory
551 in PATH, we search for FILENAME concatenated with each EXTENSION. */
553 search_path (SCM path
, SCM filename
, SCM extensions
, SCM require_exts
,
554 struct stat
*stat_buf
)
556 struct stringbuf buf
;
557 char *filename_chars
;
559 SCM result
= SCM_BOOL_F
;
561 if (scm_ilength (path
) < 0)
562 scm_misc_error ("%search-path", "path is not a proper list: ~a",
564 if (scm_ilength (extensions
) < 0)
565 scm_misc_error ("%search-path", "bad extensions list: ~a",
566 scm_list_1 (extensions
));
568 scm_dynwind_begin (0);
570 filename_chars
= scm_to_locale_string (filename
);
571 filename_len
= strlen (filename_chars
);
572 scm_dynwind_free (filename_chars
);
574 /* If FILENAME is absolute and is still valid, return it unchanged. */
575 if (is_absolute_file_name (filename
))
577 if ((scm_is_false (require_exts
) ||
578 scm_c_string_has_an_ext (filename_chars
, filename_len
,
580 && stat (filename_chars
, stat_buf
) == 0
581 && !(stat_buf
->st_mode
& S_IFDIR
))
586 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
590 for (endp
= filename_chars
+ filename_len
- 1;
591 endp
>= filename_chars
;
596 if (scm_is_true (require_exts
) &&
597 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
600 /* This filename has an extension, but not one of the right
604 /* This filename already has an extension, so cancel the
605 list of extensions. */
606 extensions
= SCM_EOL
;
609 else if (is_file_name_separator (SCM_MAKE_CHAR (*endp
)))
610 /* This filename has no extension, so keep the current list
616 /* This simplifies the loop below a bit.
618 if (scm_is_null (extensions
))
619 extensions
= scm_listofnullstr
;
622 buf
.buf
= scm_malloc (buf
.buf_len
);
623 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
625 /* Try every path element.
627 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
629 SCM dir
= SCM_CAR (path
);
634 stringbuf_cat_locale_string (&buf
, dir
);
636 /* Concatenate the path name and the filename. */
638 if (buf
.ptr
> buf
.buf
639 && !is_file_name_separator (SCM_MAKE_CHAR (buf
.ptr
[-1])))
640 stringbuf_cat (&buf
, FILE_NAME_SEPARATOR_STRING
);
642 stringbuf_cat (&buf
, filename_chars
);
643 sans_ext_len
= buf
.ptr
- buf
.buf
;
645 /* Try every extension. */
646 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
648 SCM ext
= SCM_CAR (exts
);
650 buf
.ptr
= buf
.buf
+ sans_ext_len
;
651 stringbuf_cat_locale_string (&buf
, ext
);
653 /* If the file exists at all, we should return it. If the
654 file is inaccessible, then that's an error. */
656 if (stat (buf
.buf
, stat_buf
) == 0
657 && ! (stat_buf
->st_mode
& S_IFDIR
))
660 scm_from_locale_string (scm_i_mirror_backslashes (buf
.buf
));
665 if (!SCM_NULL_OR_NIL_P (exts
))
666 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
669 if (!SCM_NULL_OR_NIL_P (path
))
670 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
677 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
678 (SCM path
, SCM filename
, SCM rest
),
679 "Search @var{path} for a directory containing a file named\n"
680 "@var{filename}. The file must be readable, and not a directory.\n"
681 "If we find one, return its full filename; otherwise, return\n"
682 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
683 "If given, @var{rest} is a list of extension strings; for each\n"
684 "directory in @var{path}, we search for @var{filename}\n"
685 "concatenated with each extension.")
686 #define FUNC_NAME s_scm_search_path
688 SCM extensions
, require_exts
;
689 struct stat stat_buf
;
691 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
693 /* Called either by Scheme code that didn't provide the optional
694 arguments, or C code that used the Guile 1.8 signature (2 required,
695 1 optional arg) and passed '() or nothing as the EXTENSIONS
697 extensions
= SCM_EOL
;
698 require_exts
= SCM_UNDEFINED
;
702 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
704 /* Called by Scheme code written for 1.9. */
705 extensions
= SCM_CAR (rest
);
706 if (scm_is_null (SCM_CDR (rest
)))
707 require_exts
= SCM_UNDEFINED
;
710 require_exts
= SCM_CADR (rest
);
711 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
712 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
717 /* Called by C code that uses the 1.8 signature, i.e., which
718 expects the 3rd argument to be EXTENSIONS. */
720 require_exts
= SCM_UNDEFINED
;
724 if (SCM_UNBNDP (extensions
))
725 extensions
= SCM_EOL
;
727 if (SCM_UNBNDP (require_exts
))
728 require_exts
= SCM_BOOL_F
;
730 return search_path (path
, filename
, extensions
, require_exts
, &stat_buf
);
735 /* Search %load-path for a directory containing a file named FILENAME.
736 The file must be readable, and not a directory.
737 If we find one, return its full filename; otherwise, return #f.
738 If FILENAME is absolute, return it unchanged. */
739 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
741 "Search @var{%load-path} for the file named @var{filename},\n"
742 "which must be readable by the current user. If @var{filename}\n"
743 "is found in the list of paths to search or is an absolute\n"
744 "pathname, return its full pathname. Otherwise, return\n"
745 "@code{#f}. Filenames may have any of the optional extensions\n"
746 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
747 "will try each extension automatically.")
748 #define FUNC_NAME s_scm_sys_search_load_path
750 struct stat stat_buf
;
752 SCM_VALIDATE_STRING (1, filename
);
754 return search_path (*scm_loc_load_path
, filename
, *scm_loc_load_extensions
,
755 SCM_BOOL_F
, &stat_buf
);
760 /* Return true if COMPILED_FILENAME is newer than source file
761 FULL_FILENAME, false otherwise. */
763 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
,
764 struct stat
*stat_source
, struct stat
*stat_compiled
)
766 int compiled_is_newer
;
767 struct timespec source_mtime
, compiled_mtime
;
769 source_mtime
= get_stat_mtime (stat_source
);
770 compiled_mtime
= get_stat_mtime (stat_compiled
);
772 if (source_mtime
.tv_sec
< compiled_mtime
.tv_sec
773 || (source_mtime
.tv_sec
== compiled_mtime
.tv_sec
774 && source_mtime
.tv_nsec
<= compiled_mtime
.tv_nsec
))
775 compiled_is_newer
= 1;
778 compiled_is_newer
= 0;
779 scm_puts_unlocked (";;; note: source file ", scm_current_error_port ());
780 scm_display (full_filename
, scm_current_error_port ());
781 scm_puts_unlocked ("\n;;; newer than compiled ", scm_current_error_port ());
782 scm_display (compiled_filename
, scm_current_error_port ());
783 scm_puts_unlocked ("\n", scm_current_error_port ());
786 return compiled_is_newer
;
789 SCM_KEYWORD (kw_env
, "env");
790 SCM_KEYWORD (kw_opts
, "opts");
792 SCM_SYMBOL (sym_compile_file
, "compile-file");
793 SCM_SYMBOL (sym_auto_compilation_options
, "%auto-compilation-options");
796 do_try_auto_compile (void *data
)
798 SCM source
= SCM_PACK_POINTER (data
);
799 SCM comp_mod
, compile_file
;
801 scm_puts_unlocked (";;; compiling ", scm_current_error_port ());
802 scm_display (source
, scm_current_error_port ());
803 scm_newline (scm_current_error_port ());
805 comp_mod
= scm_c_resolve_module ("system base compile");
806 compile_file
= scm_module_variable (comp_mod
, sym_compile_file
);
808 if (scm_is_true (compile_file
))
810 /* Auto-compile in the context of the current module. */
814 opts
= scm_module_variable (scm_the_root_module (),
815 sym_auto_compilation_options
);
816 if (SCM_VARIABLEP (opts
))
817 opts
= SCM_VARIABLE_REF (opts
);
825 args
[4] = scm_current_module ();
827 /* Assume `*current-warning-prefix*' has an appropriate value. */
828 res
= scm_call_n (scm_variable_ref (compile_file
), args
, 5);
830 scm_puts_unlocked (";;; compiled ", scm_current_error_port ());
831 scm_display (res
, scm_current_error_port ());
832 scm_newline (scm_current_error_port ());
837 scm_puts_unlocked (";;; it seems ", scm_current_error_port ());
838 scm_display (source
, scm_current_error_port ());
839 scm_puts_unlocked ("\n;;; is part of the compiler; skipping auto-compilation\n",
840 scm_current_error_port ());
846 auto_compile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
848 SCM source
= SCM_PACK_POINTER (data
);
851 oport
= scm_open_output_string ();
852 scm_print_exception (oport
, SCM_BOOL_F
, tag
, throw_args
);
854 scm_puts_unlocked (";;; WARNING: compilation of ", scm_current_warning_port ());
855 scm_display (source
, scm_current_warning_port ());
856 scm_puts_unlocked (" failed:\n", scm_current_warning_port ());
858 lines
= scm_string_split (scm_get_output_string (oport
),
859 SCM_MAKE_CHAR ('\n'));
860 for (; scm_is_pair (lines
); lines
= scm_cdr (lines
))
861 if (scm_c_string_length (scm_car (lines
)))
863 scm_puts_unlocked (";;; ", scm_current_warning_port ());
864 scm_display (scm_car (lines
), scm_current_warning_port ());
865 scm_newline (scm_current_warning_port ());
868 scm_close_port (oport
);
873 SCM_DEFINE (scm_sys_warn_auto_compilation_enabled
, "%warn-auto-compilation-enabled", 0, 0, 0,
875 #define FUNC_NAME s_scm_sys_warn_auto_compilation_enabled
877 static int message_shown
= 0;
881 scm_puts_unlocked (";;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0\n"
882 ";;; or pass the --no-auto-compile argument to disable.\n",
883 scm_current_warning_port ());
887 return SCM_UNSPECIFIED
;
892 scm_try_auto_compile (SCM source
)
894 if (scm_is_false (*scm_loc_load_should_auto_compile
))
897 scm_sys_warn_auto_compilation_enabled ();
898 return scm_c_catch (SCM_BOOL_T
,
900 SCM_UNPACK_POINTER (source
),
901 auto_compile_catch_handler
,
902 SCM_UNPACK_POINTER (source
),
906 /* The auto-compilation code will residualize a .go file in the cache
907 dir: by default, $HOME/.cache/guile/2.0/ccache/PATH.go. This
908 function determines the PATH to use as a key into the compilation
909 cache. See also (system base compile):compiled-file-name. */
911 canonical_suffix (SCM fname
)
915 /* CANON should be absolute. */
916 canon
= scm_canonicalize_path (fname
);
920 size_t len
= scm_c_string_length (canon
);
922 /* On Windows, an absolute file name that doesn't start with a
923 separator starts with a drive component. Transform the drive
924 component to a file name element: c:\foo -> \c\foo. */
926 && is_absolute_file_name (canon
)
927 && !is_file_name_separator (scm_c_string_ref (canon
, 0)))
928 return scm_string_append
929 (scm_list_3 (scm_from_latin1_string (FILE_NAME_SEPARATOR_STRING
),
930 scm_c_substring (canon
, 0, 1),
931 scm_c_substring (canon
, 2, len
)));
938 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
940 "Search @var{%load-path} for the file named @var{filename} and\n"
941 "load it into the top-level environment.\n\n"
942 "If @var{filename} is a relative pathname and is not found in\n"
943 "the list of search paths, one of three things may happen,\n"
944 "depending on the optional second argument,\n"
945 "@var{exception_on_not_found}. If it is @code{#f}, @code{#f}\n"
946 "will be returned. If it is a procedure, it will be called\n"
947 "with no arguments. Otherwise an error is signalled.")
948 #define FUNC_NAME s_scm_primitive_load_path
950 SCM filename
, exception_on_not_found
;
951 SCM full_filename
, compiled_filename
;
952 int compiled_is_fallback
= 0;
953 SCM hook
= *scm_loc_load_hook
;
954 struct stat stat_source
, stat_compiled
;
956 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
957 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
960 if (scm_is_string (args
))
962 /* C code written for 1.8 and earlier expects this function to take a
963 single argument (the file name). */
965 exception_on_not_found
= SCM_UNDEFINED
;
969 /* Starting from 1.9, this function takes 1 required and 1 optional
973 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
974 if (len
< 1 || len
> 2)
975 scm_error_num_args_subr (FUNC_NAME
);
977 filename
= SCM_CAR (args
);
978 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
980 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
983 if (SCM_UNBNDP (exception_on_not_found
))
984 exception_on_not_found
= SCM_BOOL_T
;
986 full_filename
= search_path (*scm_loc_load_path
, filename
,
987 *scm_loc_load_extensions
, SCM_BOOL_F
,
991 search_path (*scm_loc_load_compiled_path
, filename
,
992 *scm_loc_load_compiled_extensions
, SCM_BOOL_T
,
995 if (scm_is_false (compiled_filename
)
996 && scm_is_true (full_filename
)
997 && scm_is_true (*scm_loc_compile_fallback_path
)
998 && scm_is_false (*scm_loc_fresh_auto_compile
)
999 && scm_is_pair (*scm_loc_load_compiled_extensions
)
1000 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
1003 char *fallback_chars
;
1005 fallback
= scm_string_append
1006 (scm_list_3 (*scm_loc_compile_fallback_path
,
1007 canonical_suffix (full_filename
),
1008 scm_car (*scm_loc_load_compiled_extensions
)));
1010 fallback_chars
= scm_to_locale_string (fallback
);
1011 if (stat (fallback_chars
, &stat_compiled
) == 0)
1013 compiled_filename
= fallback
;
1014 compiled_is_fallback
= 1;
1016 free (fallback_chars
);
1019 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
1021 if (scm_is_true (scm_procedure_p (exception_on_not_found
)))
1022 return scm_call_0 (exception_on_not_found
);
1023 else if (scm_is_false (exception_on_not_found
))
1026 SCM_MISC_ERROR ("Unable to find file ~S in load path",
1027 scm_list_1 (filename
));
1030 if (!scm_is_false (hook
))
1031 scm_call_1 (hook
, (scm_is_true (full_filename
)
1032 ? full_filename
: compiled_filename
));
1034 if (scm_is_false (full_filename
)
1035 || (scm_is_true (compiled_filename
)
1036 && compiled_is_fresh (full_filename
, compiled_filename
,
1037 &stat_source
, &stat_compiled
)))
1038 return scm_load_compiled_with_vm (compiled_filename
);
1040 /* Perhaps there was the installed .go that was stale, but our fallback is
1041 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
1043 if (!compiled_is_fallback
1044 && scm_is_true (*scm_loc_compile_fallback_path
)
1045 && scm_is_false (*scm_loc_fresh_auto_compile
)
1046 && scm_is_pair (*scm_loc_load_compiled_extensions
)
1047 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
1050 char *fallback_chars
;
1053 fallback
= scm_string_append
1054 (scm_list_3 (*scm_loc_compile_fallback_path
,
1055 canonical_suffix (full_filename
),
1056 scm_car (*scm_loc_load_compiled_extensions
)));
1058 fallback_chars
= scm_to_locale_string (fallback
);
1059 stat_ret
= stat (fallback_chars
, &stat_compiled
);
1060 free (fallback_chars
);
1062 if (stat_ret
== 0 && compiled_is_fresh (full_filename
, fallback
,
1063 &stat_source
, &stat_compiled
))
1065 scm_puts_unlocked (";;; found fresh local cache at ", scm_current_warning_port ());
1066 scm_display (fallback
, scm_current_warning_port ());
1067 scm_newline (scm_current_warning_port ());
1068 return scm_load_compiled_with_vm (fallback
);
1072 /* Otherwise, we bottom out here. */
1074 SCM freshly_compiled
= scm_try_auto_compile (full_filename
);
1076 if (scm_is_true (freshly_compiled
))
1077 return scm_load_compiled_with_vm (freshly_compiled
);
1079 return scm_primitive_load (full_filename
);
1085 scm_c_primitive_load_path (const char *filename
)
1087 return scm_primitive_load_path (scm_from_locale_string (filename
));
1091 scm_init_eval_in_scheme (void)
1093 SCM eval_scm
, eval_go
;
1094 struct stat stat_source
, stat_compiled
;
1096 eval_scm
= search_path (*scm_loc_load_path
,
1097 scm_from_locale_string ("ice-9/eval.scm"),
1098 SCM_EOL
, SCM_BOOL_F
, &stat_source
);
1099 eval_go
= search_path (*scm_loc_load_compiled_path
,
1100 scm_from_locale_string ("ice-9/eval.go"),
1101 SCM_EOL
, SCM_BOOL_F
, &stat_compiled
);
1103 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
1104 && compiled_is_fresh (eval_scm
, eval_go
,
1105 &stat_source
, &stat_compiled
))
1106 scm_load_compiled_with_vm (eval_go
);
1108 /* if we have no eval.go, we shouldn't load any compiled code at all */
1109 *scm_loc_load_compiled_path
= SCM_EOL
;
1113 /* Information about the build environment. */
1115 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
1116 scm_from_locale_string (HOST_TYPE
));
1119 /* Initialize the scheme variable %guile-build-info, based on data
1120 provided by the Makefile, via libpath.h. */
1124 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
1125 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
1128 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
1130 SCM key
= scm_from_utf8_symbol (info
[i
].name
);
1131 SCM val
= scm_from_locale_string (info
[i
].value
);
1132 *loc
= scm_acons (key
, val
, *loc
);
1134 #ifdef PACKAGE_PACKAGER
1135 *loc
= scm_acons (scm_from_latin1_symbol ("packager"),
1136 scm_from_latin1_string (PACKAGE_PACKAGER
),
1139 #ifdef PACKAGE_PACKAGER_VERSION
1140 *loc
= scm_acons (scm_from_latin1_symbol ("packager-version"),
1141 scm_from_latin1_string (PACKAGE_PACKAGER_VERSION
),
1144 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
1145 *loc
= scm_acons (scm_from_latin1_symbol ("packager-bug-reports"),
1146 scm_from_latin1_string (PACKAGE_PACKAGER_BUG_REPORTS
),
1155 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
1156 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
1157 scm_loc_load_extensions
1158 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
1159 scm_list_2 (scm_from_locale_string (".scm"),
1161 scm_loc_load_compiled_path
1162 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
1163 scm_loc_load_compiled_extensions
1164 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
1165 scm_list_1 (scm_from_locale_string (".go"))));
1166 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
1168 scm_loc_compile_fallback_path
1169 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
1170 scm_loc_load_should_auto_compile
1171 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-auto-compile", SCM_BOOL_F
));
1172 scm_loc_fresh_auto_compile
1173 = SCM_VARIABLE_LOC (scm_c_define ("%fresh-auto-compile", SCM_BOOL_F
));
1175 scm_ellipsis
= scm_from_latin1_string ("...");
1177 the_reader
= scm_make_fluid_with_default (SCM_BOOL_F
);
1178 scm_c_define("current-reader", the_reader
);
1180 scm_c_define ("load-compiled",
1181 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
1182 scm_load_compiled_with_vm
));
1186 #include "libguile/load.x"
1190 scm_init_load_should_auto_compile ()
1192 char *auto_compile
= getenv ("GUILE_AUTO_COMPILE");
1194 if (auto_compile
&& strcmp (auto_compile
, "0") == 0)
1196 *scm_loc_load_should_auto_compile
= SCM_BOOL_F
;
1197 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;
1199 /* Allow "freshen" also. */
1200 else if (auto_compile
&& strncmp (auto_compile
, "fresh", 5) == 0)
1202 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1203 *scm_loc_fresh_auto_compile
= SCM_BOOL_T
;
1207 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1208 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;