1 /* Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2004, 2006, 2008,
2 * 2009, 2010, 2011, 2012, 2013 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>
55 #endif /* HAVE_UNISTD_H */
59 #endif /* HAVE_PWD_H */
65 #include <stat-time.h>
68 /* Loading a file, given an absolute filename. */
70 /* Hook to run when we load a file, perhaps to announce the fact somewhere.
71 Applied to the full name of the file. */
72 static SCM
*scm_loc_load_hook
;
74 /* The current reader (a fluid). */
75 static SCM the_reader
= SCM_BOOL_F
;
78 SCM_DEFINE (scm_primitive_load
, "primitive-load", 1, 0, 0,
80 "Load the file named @var{filename} and evaluate its contents in\n"
81 "the top-level environment. The load paths are not searched;\n"
82 "@var{filename} must either be a full pathname or be a pathname\n"
83 "relative to the current directory. If the variable\n"
84 "@code{%load-hook} is defined, it should be bound to a procedure\n"
85 "that will be called before any code is loaded. See the\n"
86 "documentation for @code{%load-hook} later in this section.")
87 #define FUNC_NAME s_scm_primitive_load
89 SCM hook
= *scm_loc_load_hook
;
90 SCM ret
= SCM_UNSPECIFIED
;
93 SCM_VALIDATE_STRING (1, filename
);
94 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
95 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
98 if (!scm_is_false (hook
))
99 scm_call_1 (hook
, filename
);
104 port
= scm_open_file (filename
, scm_from_locale_string ("r"));
105 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
106 scm_i_dynwind_current_load_port (port
);
108 encoding
= scm_i_scan_for_encoding (port
);
110 scm_i_set_port_encoding_x (port
, encoding
);
112 /* The file has no encoding declared. We'll presume UTF-8, like
113 compile-file does. */
114 scm_i_set_port_encoding_x (port
, "UTF-8");
120 /* Lookup and use the current reader to read the next
122 reader
= scm_fluid_ref (the_reader
);
123 if (scm_is_false (reader
))
124 form
= scm_read (port
);
126 form
= scm_call_1 (reader
, port
);
128 if (SCM_EOF_OBJECT_P (form
))
131 ret
= scm_primitive_eval_x (form
);
135 scm_close_port (port
);
142 scm_c_primitive_load (const char *filename
)
144 return scm_primitive_load (scm_from_locale_string (filename
));
148 /* Builtin path to scheme library files. */
149 #ifdef SCM_PKGDATA_DIR
150 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
152 "Return the name of the directory where Scheme packages, modules and\n"
153 "libraries are kept. On most Unix systems, this will be\n"
154 "@samp{/usr/local/share/guile}.")
155 #define FUNC_NAME s_scm_sys_package_data_dir
157 return scm_from_locale_string (SCM_PKGDATA_DIR
);
160 #endif /* SCM_PKGDATA_DIR */
162 #ifdef SCM_LIBRARY_DIR
163 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
165 "Return the directory where the Guile Scheme library files are installed.\n"
166 "E.g., may return \"/usr/share/guile/1.3.5\".")
167 #define FUNC_NAME s_scm_sys_library_dir
169 return scm_from_locale_string (SCM_LIBRARY_DIR
);
172 #endif /* SCM_LIBRARY_DIR */
175 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
177 "Return the directory where users should install Scheme code for use\n"
178 "with this version of Guile.\n\n"
179 "E.g., may return \"/usr/share/guile/site/" SCM_EFFECTIVE_VERSION
"\".")
180 #define FUNC_NAME s_scm_sys_site_dir
182 return scm_from_locale_string (SCM_SITE_DIR
);
185 #endif /* SCM_SITE_DIR */
187 #ifdef SCM_GLOBAL_SITE_DIR
188 SCM_DEFINE (scm_sys_global_site_dir
, "%global-site-dir", 0,0,0,
190 "Return the directory where users should install Scheme code for use\n"
191 "with all versions of Guile.\n\n"
192 "E.g., may return \"/usr/share/guile/site\".")
193 #define FUNC_NAME s_scm_sys_global_site_dir
195 return scm_from_locale_string (SCM_GLOBAL_SITE_DIR
);
198 #endif /* SCM_GLOBAL_SITE_DIR */
200 #ifdef SCM_SITE_CCACHE_DIR
201 SCM_DEFINE (scm_sys_site_ccache_dir
, "%site-ccache-dir", 0,0,0,
203 "Return the directory where users should install compiled\n"
204 "@code{.go} files for use with this version of Guile.\n\n"
205 "E.g., may return \"/usr/lib/guile/" SCM_EFFECTIVE_VERSION
"/site-ccache\".")
206 #define FUNC_NAME s_scm_sys_site_ccache_dir
208 return scm_from_locale_string (SCM_SITE_CCACHE_DIR
);
211 #endif /* SCM_SITE_CCACHE_DIR */
215 /* Initializing the load path, and searching it. */
217 /* List of names of directories we search for files to load. */
218 static SCM
*scm_loc_load_path
;
220 /* List of extensions we try adding to the filenames. */
221 static SCM
*scm_loc_load_extensions
;
223 /* Like %load-path and %load-extensions, but for compiled files. */
224 static SCM
*scm_loc_load_compiled_path
;
225 static SCM
*scm_loc_load_compiled_extensions
;
227 /* Whether we should try to auto-compile. */
228 static SCM
*scm_loc_load_should_auto_compile
;
230 /* Whether to treat all auto-compiled files as stale. */
231 static SCM
*scm_loc_fresh_auto_compile
;
233 /* The fallback path for auto-compilation */
234 static SCM
*scm_loc_compile_fallback_path
;
236 /* Ellipsis: "..." */
237 static SCM scm_ellipsis
;
239 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
240 (SCM path
, SCM tail
),
241 "Parse @var{path}, which is expected to be a colon-separated\n"
242 "string, into a list and return the resulting list with\n"
243 "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n"
245 #define FUNC_NAME s_scm_parse_path
248 SCM sep
= SCM_MAKE_CHAR (';');
250 SCM sep
= SCM_MAKE_CHAR (':');
253 if (SCM_UNBNDP (tail
))
255 return (scm_is_false (path
)
257 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
261 SCM_DEFINE (scm_parse_path_with_ellipsis
, "parse-path-with-ellipsis", 2, 0, 0,
262 (SCM path
, SCM base
),
263 "Parse @var{path}, which is expected to be a colon-separated\n"
264 "string, into a list and return the resulting list with\n"
265 "@var{base} (a list) spliced in place of the @code{...} path\n"
266 "component, if present, or else @var{base} is added to the end.\n"
267 "If @var{path} is @code{#f}, @var{base} is returned.")
268 #define FUNC_NAME s_scm_parse_path_with_ellipsis
270 SCM lst
= scm_parse_path (path
, SCM_EOL
);
274 while (!scm_is_null (walk
) &&
275 scm_is_false (scm_equal_p (scm_car (walk
), scm_ellipsis
)))
277 prev
= SCM_CDRLOC (walk
);
280 *prev
= scm_is_null (walk
)
282 : scm_append (scm_list_2 (base
, scm_cdr (walk
)));
288 /* Initialize the global variable %load-path, given the value of the
289 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
290 GUILE_LOAD_PATH environment variable. */
292 scm_init_load_path ()
298 #ifdef SCM_LIBRARY_DIR
299 env
= getenv ("GUILE_SYSTEM_PATH");
300 if (env
&& strcmp (env
, "") == 0)
301 /* special-case interpret system-path=="" as meaning no system path instead
305 path
= scm_parse_path (scm_from_locale_string (env
), path
);
307 path
= scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR
),
308 scm_from_locale_string (SCM_SITE_DIR
),
309 scm_from_locale_string (SCM_GLOBAL_SITE_DIR
),
310 scm_from_locale_string (SCM_PKGDATA_DIR
));
312 env
= getenv ("GUILE_SYSTEM_COMPILED_PATH");
313 if (env
&& strcmp (env
, "") == 0)
317 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
320 cpath
= scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR
),
321 scm_from_locale_string (SCM_SITE_CCACHE_DIR
));
324 #endif /* SCM_LIBRARY_DIR */
333 #define FALLBACK_DIR \
334 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
336 if ((e
= getenv ("XDG_CACHE_HOME")))
337 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
338 else if ((e
= getenv ("HOME")))
339 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
341 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
342 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
344 #endif /* HAVE_GETPWENT */
346 else if ((e
= getenv ("LOCALAPPDATA")))
347 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
348 else if ((e
= getenv ("APPDATA")))
349 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
350 #endif /* __MINGW32__ */
355 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
358 env
= getenv ("GUILE_LOAD_PATH");
360 path
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), path
);
362 env
= getenv ("GUILE_LOAD_COMPILED_PATH");
364 cpath
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), cpath
);
366 *scm_loc_load_path
= path
;
367 *scm_loc_load_compiled_path
= cpath
;
370 SCM scm_listofnullstr
;
372 /* Utility functions for assembling C strings in a buffer.
381 stringbuf_free (void *data
)
383 struct stringbuf
*buf
= (struct stringbuf
*)data
;
388 stringbuf_grow (struct stringbuf
*buf
)
390 size_t ptroff
= buf
->ptr
- buf
->buf
;
392 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
393 buf
->ptr
= buf
->buf
+ ptroff
;
397 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
399 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
400 size_t len
= scm_to_locale_stringbuf (str
, buf
->ptr
, max_len
);
403 /* buffer is too small, double its size and try again.
405 stringbuf_grow (buf
);
406 stringbuf_cat_locale_string (buf
, str
);
410 /* string fits, terminate it and check for embedded '\0'.
412 buf
->ptr
[len
] = '\0';
413 if (strlen (buf
->ptr
) != len
)
414 scm_misc_error (NULL
,
415 "string contains #\\nul character: ~S",
422 stringbuf_cat (struct stringbuf
*buf
, char *str
)
424 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
425 size_t len
= strlen (str
);
428 /* buffer is too small, double its size and try again.
430 stringbuf_grow (buf
);
431 stringbuf_cat (buf
, str
);
435 /* string fits, copy it into buffer.
437 strcpy (buf
->ptr
, str
);
444 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
446 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
451 ext
= scm_to_locale_string (SCM_CAR (extensions
));
452 extlen
= strlen (ext
);
453 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
454 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
463 #define FILE_NAME_SEPARATOR_STRING "\\"
465 #define FILE_NAME_SEPARATOR_STRING "/"
469 is_file_name_separator (SCM c
)
471 if (scm_is_eq (c
, SCM_MAKE_CHAR ('/')))
474 if (scm_is_eq (c
, SCM_MAKE_CHAR ('\\')))
481 is_drive_letter (SCM c
)
484 if (SCM_CHAR (c
) >= 'a' && SCM_CHAR (c
) <= 'z')
486 else if (SCM_CHAR (c
) >= 'A' && SCM_CHAR (c
) <= 'Z')
493 is_absolute_file_name (SCM filename
)
495 size_t filename_len
= scm_c_string_length (filename
);
497 if (filename_len
>= 1
498 && is_file_name_separator (scm_c_string_ref (filename
, 0))
500 /* On Windows, one initial separator indicates a drive-relative
501 path. Two separators indicate a Universal Naming Convention
502 (UNC) path. UNC paths are always absolute. */
504 && is_file_name_separator (scm_c_string_ref (filename
, 1))
508 if (filename_len
>= 3
509 && is_drive_letter (scm_c_string_ref (filename
, 0))
510 && scm_is_eq (scm_c_string_ref (filename
, 1), SCM_MAKE_CHAR (':'))
511 && is_file_name_separator (scm_c_string_ref (filename
, 2)))
516 /* Search PATH for a directory containing a file named FILENAME.
517 The file must be readable, and not a directory.
518 If we find one, return its full pathname; otherwise, return #f.
519 If FILENAME is absolute, return it unchanged.
520 We also fill *stat_buf corresponding to the returned pathname.
521 If given, EXTENSIONS is a list of strings; for each directory
522 in PATH, we search for FILENAME concatenated with each EXTENSION. */
524 search_path (SCM path
, SCM filename
, SCM extensions
, SCM require_exts
,
525 struct stat
*stat_buf
)
527 struct stringbuf buf
;
528 char *filename_chars
;
530 SCM result
= SCM_BOOL_F
;
532 if (scm_ilength (path
) < 0)
533 scm_misc_error ("%search-path", "path is not a proper list: ~a",
535 if (scm_ilength (extensions
) < 0)
536 scm_misc_error ("%search-path", "bad extensions list: ~a",
537 scm_list_1 (extensions
));
539 scm_dynwind_begin (0);
541 filename_chars
= scm_to_locale_string (filename
);
542 filename_len
= strlen (filename_chars
);
543 scm_dynwind_free (filename_chars
);
545 /* If FILENAME is absolute and is still valid, return it unchanged. */
546 if (is_absolute_file_name (filename
))
548 if ((scm_is_false (require_exts
) ||
549 scm_c_string_has_an_ext (filename_chars
, filename_len
,
551 && stat (filename_chars
, stat_buf
) == 0
552 && !(stat_buf
->st_mode
& S_IFDIR
))
557 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
561 for (endp
= filename_chars
+ filename_len
- 1;
562 endp
>= filename_chars
;
567 if (scm_is_true (require_exts
) &&
568 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
571 /* This filename has an extension, but not one of the right
575 /* This filename already has an extension, so cancel the
576 list of extensions. */
577 extensions
= SCM_EOL
;
580 else if (is_file_name_separator (SCM_MAKE_CHAR (*endp
)))
581 /* This filename has no extension, so keep the current list
587 /* This simplifies the loop below a bit.
589 if (scm_is_null (extensions
))
590 extensions
= scm_listofnullstr
;
593 buf
.buf
= scm_malloc (buf
.buf_len
);
594 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
596 /* Try every path element.
598 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
600 SCM dir
= SCM_CAR (path
);
605 stringbuf_cat_locale_string (&buf
, dir
);
607 /* Concatenate the path name and the filename. */
609 if (buf
.ptr
> buf
.buf
610 && !is_file_name_separator (SCM_MAKE_CHAR (buf
.ptr
[-1])))
611 stringbuf_cat (&buf
, FILE_NAME_SEPARATOR_STRING
);
613 stringbuf_cat (&buf
, filename_chars
);
614 sans_ext_len
= buf
.ptr
- buf
.buf
;
616 /* Try every extension. */
617 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
619 SCM ext
= SCM_CAR (exts
);
621 buf
.ptr
= buf
.buf
+ sans_ext_len
;
622 stringbuf_cat_locale_string (&buf
, ext
);
624 /* If the file exists at all, we should return it. If the
625 file is inaccessible, then that's an error. */
627 if (stat (buf
.buf
, stat_buf
) == 0
628 && ! (stat_buf
->st_mode
& S_IFDIR
))
630 result
= scm_from_locale_string (buf
.buf
);
635 if (!SCM_NULL_OR_NIL_P (exts
))
636 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
639 if (!SCM_NULL_OR_NIL_P (path
))
640 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
647 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
648 (SCM path
, SCM filename
, SCM rest
),
649 "Search @var{path} for a directory containing a file named\n"
650 "@var{filename}. The file must be readable, and not a directory.\n"
651 "If we find one, return its full filename; otherwise, return\n"
652 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
653 "If given, @var{rest} is a list of extension strings; for each\n"
654 "directory in @var{path}, we search for @var{filename}\n"
655 "concatenated with each extension.")
656 #define FUNC_NAME s_scm_search_path
658 SCM extensions
, require_exts
;
659 struct stat stat_buf
;
661 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
663 /* Called either by Scheme code that didn't provide the optional
664 arguments, or C code that used the Guile 1.8 signature (2 required,
665 1 optional arg) and passed '() or nothing as the EXTENSIONS
667 extensions
= SCM_EOL
;
668 require_exts
= SCM_UNDEFINED
;
672 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
674 /* Called by Scheme code written for 1.9. */
675 extensions
= SCM_CAR (rest
);
676 if (scm_is_null (SCM_CDR (rest
)))
677 require_exts
= SCM_UNDEFINED
;
680 require_exts
= SCM_CADR (rest
);
681 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
682 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
687 /* Called by C code that uses the 1.8 signature, i.e., which
688 expects the 3rd argument to be EXTENSIONS. */
690 require_exts
= SCM_UNDEFINED
;
694 if (SCM_UNBNDP (extensions
))
695 extensions
= SCM_EOL
;
697 if (SCM_UNBNDP (require_exts
))
698 require_exts
= SCM_BOOL_F
;
700 return search_path (path
, filename
, extensions
, require_exts
, &stat_buf
);
705 /* Search %load-path for a directory containing a file named FILENAME.
706 The file must be readable, and not a directory.
707 If we find one, return its full filename; otherwise, return #f.
708 If FILENAME is absolute, return it unchanged. */
709 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
711 "Search @var{%load-path} for the file named @var{filename},\n"
712 "which must be readable by the current user. If @var{filename}\n"
713 "is found in the list of paths to search or is an absolute\n"
714 "pathname, return its full pathname. Otherwise, return\n"
715 "@code{#f}. Filenames may have any of the optional extensions\n"
716 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
717 "will try each extension automatically.")
718 #define FUNC_NAME s_scm_sys_search_load_path
720 struct stat stat_buf
;
722 SCM_VALIDATE_STRING (1, filename
);
724 return search_path (*scm_loc_load_path
, filename
, *scm_loc_load_extensions
,
725 SCM_BOOL_F
, &stat_buf
);
730 /* Return true if COMPILED_FILENAME is newer than source file
731 FULL_FILENAME, false otherwise. */
733 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
,
734 struct stat
*stat_source
, struct stat
*stat_compiled
)
736 int compiled_is_newer
;
737 struct timespec source_mtime
, compiled_mtime
;
739 source_mtime
= get_stat_mtime (stat_source
);
740 compiled_mtime
= get_stat_mtime (stat_compiled
);
742 if (source_mtime
.tv_sec
< compiled_mtime
.tv_sec
743 || (source_mtime
.tv_sec
== compiled_mtime
.tv_sec
744 && source_mtime
.tv_nsec
<= compiled_mtime
.tv_nsec
))
745 compiled_is_newer
= 1;
748 compiled_is_newer
= 0;
749 scm_puts_unlocked (";;; note: source file ", scm_current_error_port ());
750 scm_display (full_filename
, scm_current_error_port ());
751 scm_puts_unlocked ("\n;;; newer than compiled ", scm_current_error_port ());
752 scm_display (compiled_filename
, scm_current_error_port ());
753 scm_puts_unlocked ("\n", scm_current_error_port ());
756 return compiled_is_newer
;
759 SCM_KEYWORD (kw_env
, "env");
760 SCM_KEYWORD (kw_opts
, "opts");
762 SCM_SYMBOL (sym_compile_file
, "compile-file");
763 SCM_SYMBOL (sym_auto_compilation_options
, "%auto-compilation-options");
766 do_try_auto_compile (void *data
)
768 SCM source
= SCM_PACK_POINTER (data
);
769 SCM comp_mod
, compile_file
;
771 scm_puts_unlocked (";;; compiling ", scm_current_error_port ());
772 scm_display (source
, scm_current_error_port ());
773 scm_newline (scm_current_error_port ());
775 comp_mod
= scm_c_resolve_module ("system base compile");
776 compile_file
= scm_module_variable (comp_mod
, sym_compile_file
);
778 if (scm_is_true (compile_file
))
780 /* Auto-compile in the context of the current module. */
784 opts
= scm_module_variable (scm_the_root_module (),
785 sym_auto_compilation_options
);
786 if (SCM_VARIABLEP (opts
))
787 opts
= SCM_VARIABLE_REF (opts
);
795 args
[4] = scm_current_module ();
797 /* Assume `*current-warning-prefix*' has an appropriate value. */
798 res
= scm_call_n (scm_variable_ref (compile_file
), args
, 5);
800 scm_puts_unlocked (";;; compiled ", scm_current_error_port ());
801 scm_display (res
, scm_current_error_port ());
802 scm_newline (scm_current_error_port ());
807 scm_puts_unlocked (";;; it seems ", scm_current_error_port ());
808 scm_display (source
, scm_current_error_port ());
809 scm_puts_unlocked ("\n;;; is part of the compiler; skipping auto-compilation\n",
810 scm_current_error_port ());
816 auto_compile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
818 SCM source
= SCM_PACK_POINTER (data
);
821 oport
= scm_open_output_string ();
822 scm_print_exception (oport
, SCM_BOOL_F
, tag
, throw_args
);
824 scm_puts_unlocked (";;; WARNING: compilation of ", scm_current_warning_port ());
825 scm_display (source
, scm_current_warning_port ());
826 scm_puts_unlocked (" failed:\n", scm_current_warning_port ());
828 lines
= scm_string_split (scm_get_output_string (oport
),
829 SCM_MAKE_CHAR ('\n'));
830 for (; scm_is_pair (lines
); lines
= scm_cdr (lines
))
831 if (scm_c_string_length (scm_car (lines
)))
833 scm_puts_unlocked (";;; ", scm_current_warning_port ());
834 scm_display (scm_car (lines
), scm_current_warning_port ());
835 scm_newline (scm_current_warning_port ());
838 scm_close_port (oport
);
843 SCM_DEFINE (scm_sys_warn_auto_compilation_enabled
, "%warn-auto-compilation-enabled", 0, 0, 0,
845 #define FUNC_NAME s_scm_sys_warn_auto_compilation_enabled
847 static int message_shown
= 0;
851 scm_puts_unlocked (";;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0\n"
852 ";;; or pass the --no-auto-compile argument to disable.\n",
853 scm_current_warning_port ());
857 return SCM_UNSPECIFIED
;
862 scm_try_auto_compile (SCM source
)
864 if (scm_is_false (*scm_loc_load_should_auto_compile
))
867 scm_sys_warn_auto_compilation_enabled ();
868 return scm_c_catch (SCM_BOOL_T
,
870 SCM_UNPACK_POINTER (source
),
871 auto_compile_catch_handler
,
872 SCM_UNPACK_POINTER (source
),
876 /* The auto-compilation code will residualize a .go file in the cache
877 dir: by default, $HOME/.cache/guile/2.0/ccache/PATH.go. This
878 function determines the PATH to use as a key into the compilation
879 cache. See also (system base compile):compiled-file-name. */
881 canonical_suffix (SCM fname
)
885 /* CANON should be absolute. */
886 canon
= scm_canonicalize_path (fname
);
890 size_t len
= scm_c_string_length (canon
);
892 /* On Windows, an absolute file name that doesn't start with a
893 separator starts with a drive component. Transform the drive
894 component to a file name element: c:\foo -> \c\foo. */
896 && is_absolute_file_name (canon
)
897 && !is_file_name_separator (scm_c_string_ref (canon
, 0)))
898 return scm_string_append
899 (scm_list_3 (scm_from_latin1_string (FILE_NAME_SEPARATOR_STRING
),
900 scm_c_substring (canon
, 0, 1),
901 scm_c_substring (canon
, 2, len
)));
908 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
910 "Search @var{%load-path} for the file named @var{filename} and\n"
911 "load it into the top-level environment.\n\n"
912 "If @var{filename} is a relative pathname and is not found in\n"
913 "the list of search paths, one of three things may happen,\n"
914 "depending on the optional second argument,\n"
915 "@var{exception_on_not_found}. If it is @code{#f}, @code{#f}\n"
916 "will be returned. If it is a procedure, it will be called\n"
917 "with no arguments. Otherwise an error is signalled.")
918 #define FUNC_NAME s_scm_primitive_load_path
920 SCM filename
, exception_on_not_found
;
921 SCM full_filename
, compiled_filename
;
922 int compiled_is_fallback
= 0;
923 SCM hook
= *scm_loc_load_hook
;
924 struct stat stat_source
, stat_compiled
;
926 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
927 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
930 if (scm_is_string (args
))
932 /* C code written for 1.8 and earlier expects this function to take a
933 single argument (the file name). */
935 exception_on_not_found
= SCM_UNDEFINED
;
939 /* Starting from 1.9, this function takes 1 required and 1 optional
943 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
944 if (len
< 1 || len
> 2)
945 scm_error_num_args_subr (FUNC_NAME
);
947 filename
= SCM_CAR (args
);
948 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
950 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
953 if (SCM_UNBNDP (exception_on_not_found
))
954 exception_on_not_found
= SCM_BOOL_T
;
956 full_filename
= search_path (*scm_loc_load_path
, filename
,
957 *scm_loc_load_extensions
, SCM_BOOL_F
,
961 search_path (*scm_loc_load_compiled_path
, filename
,
962 *scm_loc_load_compiled_extensions
, SCM_BOOL_T
,
965 if (scm_is_false (compiled_filename
)
966 && scm_is_true (full_filename
)
967 && scm_is_true (*scm_loc_compile_fallback_path
)
968 && scm_is_false (*scm_loc_fresh_auto_compile
)
969 && scm_is_pair (*scm_loc_load_compiled_extensions
)
970 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
973 char *fallback_chars
;
975 fallback
= scm_string_append
976 (scm_list_3 (*scm_loc_compile_fallback_path
,
977 canonical_suffix (full_filename
),
978 scm_car (*scm_loc_load_compiled_extensions
)));
980 fallback_chars
= scm_to_locale_string (fallback
);
981 if (stat (fallback_chars
, &stat_compiled
) == 0)
983 compiled_filename
= fallback
;
984 compiled_is_fallback
= 1;
986 free (fallback_chars
);
989 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
991 if (scm_is_true (scm_procedure_p (exception_on_not_found
)))
992 return scm_call_0 (exception_on_not_found
);
993 else if (scm_is_false (exception_on_not_found
))
996 SCM_MISC_ERROR ("Unable to find file ~S in load path",
997 scm_list_1 (filename
));
1000 if (!scm_is_false (hook
))
1001 scm_call_1 (hook
, (scm_is_true (full_filename
)
1002 ? full_filename
: compiled_filename
));
1004 if (scm_is_false (full_filename
)
1005 || (scm_is_true (compiled_filename
)
1006 && compiled_is_fresh (full_filename
, compiled_filename
,
1007 &stat_source
, &stat_compiled
)))
1008 return scm_load_compiled_with_vm (compiled_filename
);
1010 /* Perhaps there was the installed .go that was stale, but our fallback is
1011 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
1013 if (!compiled_is_fallback
1014 && scm_is_true (*scm_loc_compile_fallback_path
)
1015 && scm_is_false (*scm_loc_fresh_auto_compile
)
1016 && scm_is_pair (*scm_loc_load_compiled_extensions
)
1017 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
1020 char *fallback_chars
;
1023 fallback
= scm_string_append
1024 (scm_list_3 (*scm_loc_compile_fallback_path
,
1025 canonical_suffix (full_filename
),
1026 scm_car (*scm_loc_load_compiled_extensions
)));
1028 fallback_chars
= scm_to_locale_string (fallback
);
1029 stat_ret
= stat (fallback_chars
, &stat_compiled
);
1030 free (fallback_chars
);
1032 if (stat_ret
== 0 && compiled_is_fresh (full_filename
, fallback
,
1033 &stat_source
, &stat_compiled
))
1035 scm_puts_unlocked (";;; found fresh local cache at ", scm_current_warning_port ());
1036 scm_display (fallback
, scm_current_warning_port ());
1037 scm_newline (scm_current_warning_port ());
1038 return scm_load_compiled_with_vm (fallback
);
1042 /* Otherwise, we bottom out here. */
1044 SCM freshly_compiled
= scm_try_auto_compile (full_filename
);
1046 if (scm_is_true (freshly_compiled
))
1047 return scm_load_compiled_with_vm (freshly_compiled
);
1049 return scm_primitive_load (full_filename
);
1055 scm_c_primitive_load_path (const char *filename
)
1057 return scm_primitive_load_path (scm_from_locale_string (filename
));
1061 scm_init_eval_in_scheme (void)
1063 SCM eval_scm
, eval_go
;
1064 struct stat stat_source
, stat_compiled
;
1066 eval_scm
= search_path (*scm_loc_load_path
,
1067 scm_from_locale_string ("ice-9/eval.scm"),
1068 SCM_EOL
, SCM_BOOL_F
, &stat_source
);
1069 eval_go
= search_path (*scm_loc_load_compiled_path
,
1070 scm_from_locale_string ("ice-9/eval.go"),
1071 SCM_EOL
, SCM_BOOL_F
, &stat_compiled
);
1073 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
1074 && compiled_is_fresh (eval_scm
, eval_go
,
1075 &stat_source
, &stat_compiled
))
1076 scm_load_compiled_with_vm (eval_go
);
1078 /* if we have no eval.go, we shouldn't load any compiled code at all */
1079 *scm_loc_load_compiled_path
= SCM_EOL
;
1083 /* Information about the build environment. */
1085 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
1086 scm_from_locale_string (HOST_TYPE
));
1089 /* Initialize the scheme variable %guile-build-info, based on data
1090 provided by the Makefile, via libpath.h. */
1094 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
1095 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
1098 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
1100 SCM key
= scm_from_utf8_symbol (info
[i
].name
);
1101 SCM val
= scm_from_locale_string (info
[i
].value
);
1102 *loc
= scm_acons (key
, val
, *loc
);
1104 #ifdef PACKAGE_PACKAGER
1105 *loc
= scm_acons (scm_from_latin1_symbol ("packager"),
1106 scm_from_latin1_string (PACKAGE_PACKAGER
),
1109 #ifdef PACKAGE_PACKAGER_VERSION
1110 *loc
= scm_acons (scm_from_latin1_symbol ("packager-version"),
1111 scm_from_latin1_string (PACKAGE_PACKAGER_VERSION
),
1114 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
1115 *loc
= scm_acons (scm_from_latin1_symbol ("packager-bug-reports"),
1116 scm_from_latin1_string (PACKAGE_PACKAGER_BUG_REPORTS
),
1125 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
1126 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
1127 scm_loc_load_extensions
1128 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
1129 scm_list_2 (scm_from_locale_string (".scm"),
1131 scm_loc_load_compiled_path
1132 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
1133 scm_loc_load_compiled_extensions
1134 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
1135 scm_list_1 (scm_from_locale_string (".go"))));
1136 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
1138 scm_loc_compile_fallback_path
1139 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
1140 scm_loc_load_should_auto_compile
1141 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-auto-compile", SCM_BOOL_F
));
1142 scm_loc_fresh_auto_compile
1143 = SCM_VARIABLE_LOC (scm_c_define ("%fresh-auto-compile", SCM_BOOL_F
));
1145 scm_ellipsis
= scm_from_latin1_string ("...");
1147 the_reader
= scm_make_fluid_with_default (SCM_BOOL_F
);
1148 scm_c_define("current-reader", the_reader
);
1150 scm_c_define ("load-compiled",
1151 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
1152 scm_load_compiled_with_vm
));
1156 #include "libguile/load.x"
1160 scm_init_load_should_auto_compile ()
1162 char *auto_compile
= getenv ("GUILE_AUTO_COMPILE");
1164 if (auto_compile
&& strcmp (auto_compile
, "0") == 0)
1166 *scm_loc_load_should_auto_compile
= SCM_BOOL_F
;
1167 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;
1169 /* Allow "freshen" also. */
1170 else if (auto_compile
&& strncmp (auto_compile
, "fresh", 5) == 0)
1172 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1173 *scm_loc_fresh_auto_compile
= SCM_BOOL_T
;
1177 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1178 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;