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/private-gc.h" /* scm_getenv_int */
32 #include "libguile/libpath.h"
33 #include "libguile/fports.h"
34 #include "libguile/read.h"
35 #include "libguile/eval.h"
36 #include "libguile/throw.h"
37 #include "libguile/alist.h"
38 #include "libguile/dynwind.h"
39 #include "libguile/root.h"
40 #include "libguile/strings.h"
41 #include "libguile/modules.h"
42 #include "libguile/chars.h"
43 #include "libguile/srfi-13.h"
45 #include "libguile/validate.h"
46 #include "libguile/load.h"
47 #include "libguile/fluids.h"
49 #include "libguile/vm.h" /* for load-compiled/vm */
51 #include <sys/types.h>
56 #endif /* HAVE_UNISTD_H */
60 #endif /* HAVE_PWD_H */
66 #include <stat-time.h>
69 /* Loading a file, given an absolute filename. */
71 /* Hook to run when we load a file, perhaps to announce the fact somewhere.
72 Applied to the full name of the file. */
73 static SCM
*scm_loc_load_hook
;
75 /* The current reader (a fluid). */
76 static SCM the_reader
= SCM_BOOL_F
;
79 SCM_DEFINE (scm_primitive_load
, "primitive-load", 1, 0, 0,
81 "Load the file named @var{filename} and evaluate its contents in\n"
82 "the top-level environment. The load paths are not searched;\n"
83 "@var{filename} must either be a full pathname or be a pathname\n"
84 "relative to the current directory. If the variable\n"
85 "@code{%load-hook} is defined, it should be bound to a procedure\n"
86 "that will be called before any code is loaded. See the\n"
87 "documentation for @code{%load-hook} later in this section.")
88 #define FUNC_NAME s_scm_primitive_load
90 SCM hook
= *scm_loc_load_hook
;
91 SCM ret
= SCM_UNSPECIFIED
;
94 SCM_VALIDATE_STRING (1, filename
);
95 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
96 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
99 if (!scm_is_false (hook
))
100 scm_call_1 (hook
, filename
);
105 port
= scm_open_file (filename
, scm_from_locale_string ("r"));
106 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
107 scm_i_dynwind_current_load_port (port
);
109 encoding
= scm_i_scan_for_encoding (port
);
111 scm_i_set_port_encoding_x (port
, encoding
);
113 /* The file has no encoding declared. We'll presume UTF-8, like
114 compile-file does. */
115 scm_i_set_port_encoding_x (port
, "UTF-8");
121 /* Lookup and use the current reader to read the next
123 reader
= scm_fluid_ref (the_reader
);
124 if (scm_is_false (reader
))
125 form
= scm_read (port
);
127 form
= scm_call_1 (reader
, port
);
129 if (SCM_EOF_OBJECT_P (form
))
132 ret
= scm_primitive_eval_x (form
);
136 scm_close_port (port
);
143 scm_c_primitive_load (const char *filename
)
145 return scm_primitive_load (scm_from_locale_string (filename
));
149 /* Builtin path to scheme library files. */
150 #ifdef SCM_PKGDATA_DIR
151 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
153 "Return the name of the directory where Scheme packages, modules and\n"
154 "libraries are kept. On most Unix systems, this will be\n"
155 "@samp{/usr/local/share/guile}.")
156 #define FUNC_NAME s_scm_sys_package_data_dir
158 return scm_from_locale_string (SCM_PKGDATA_DIR
);
161 #endif /* SCM_PKGDATA_DIR */
163 #ifdef SCM_LIBRARY_DIR
164 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
166 "Return the directory where the Guile Scheme library files are installed.\n"
167 "E.g., may return \"/usr/share/guile/1.3.5\".")
168 #define FUNC_NAME s_scm_sys_library_dir
170 return scm_from_locale_string (SCM_LIBRARY_DIR
);
173 #endif /* SCM_LIBRARY_DIR */
176 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
178 "Return the directory where users should install Scheme code for use\n"
179 "with this version of Guile.\n\n"
180 "E.g., may return \"/usr/share/guile/site/" SCM_EFFECTIVE_VERSION
"\".")
181 #define FUNC_NAME s_scm_sys_site_dir
183 return scm_from_locale_string (SCM_SITE_DIR
);
186 #endif /* SCM_SITE_DIR */
188 #ifdef SCM_GLOBAL_SITE_DIR
189 SCM_DEFINE (scm_sys_global_site_dir
, "%global-site-dir", 0,0,0,
191 "Return the directory where users should install Scheme code for use\n"
192 "with all versions of Guile.\n\n"
193 "E.g., may return \"/usr/share/guile/site\".")
194 #define FUNC_NAME s_scm_sys_global_site_dir
196 return scm_from_locale_string (SCM_GLOBAL_SITE_DIR
);
199 #endif /* SCM_GLOBAL_SITE_DIR */
201 #ifdef SCM_SITE_CCACHE_DIR
202 SCM_DEFINE (scm_sys_site_ccache_dir
, "%site-ccache-dir", 0,0,0,
204 "Return the directory where users should install compiled\n"
205 "@code{.go} files for use with this version of Guile.\n\n"
206 "E.g., may return \"/usr/lib/guile/" SCM_EFFECTIVE_VERSION
"/site-ccache\".")
207 #define FUNC_NAME s_scm_sys_site_ccache_dir
209 return scm_from_locale_string (SCM_SITE_CCACHE_DIR
);
212 #endif /* SCM_SITE_CCACHE_DIR */
216 /* Initializing the load path, and searching it. */
218 /* List of names of directories we search for files to load. */
219 static SCM
*scm_loc_load_path
;
221 /* List of extensions we try adding to the filenames. */
222 static SCM
*scm_loc_load_extensions
;
224 /* Like %load-path and %load-extensions, but for compiled files. */
225 static SCM
*scm_loc_load_compiled_path
;
226 static SCM
*scm_loc_load_compiled_extensions
;
228 /* Whether we should try to auto-compile. */
229 static SCM
*scm_loc_load_should_auto_compile
;
231 /* Whether to treat all auto-compiled files as stale. */
232 static SCM
*scm_loc_fresh_auto_compile
;
234 /* The fallback path for auto-compilation */
235 static SCM
*scm_loc_compile_fallback_path
;
237 /* Ellipsis: "..." */
238 static SCM scm_ellipsis
;
240 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
241 (SCM path
, SCM tail
),
242 "Parse @var{path}, which is expected to be a colon-separated\n"
243 "string, into a list and return the resulting list with\n"
244 "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n"
246 #define FUNC_NAME s_scm_parse_path
249 SCM sep
= SCM_MAKE_CHAR (';');
251 SCM sep
= SCM_MAKE_CHAR (':');
254 if (SCM_UNBNDP (tail
))
256 return (scm_is_false (path
)
258 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
262 SCM_DEFINE (scm_parse_path_with_ellipsis
, "parse-path-with-ellipsis", 2, 0, 0,
263 (SCM path
, SCM base
),
264 "Parse @var{path}, which is expected to be a colon-separated\n"
265 "string, into a list and return the resulting list with\n"
266 "@var{base} (a list) spliced in place of the @code{...} path\n"
267 "component, if present, or else @var{base} is added to the end.\n"
268 "If @var{path} is @code{#f}, @var{base} is returned.")
269 #define FUNC_NAME s_scm_parse_path_with_ellipsis
271 SCM lst
= scm_parse_path (path
, SCM_EOL
);
275 while (!scm_is_null (walk
) &&
276 scm_is_false (scm_equal_p (scm_car (walk
), scm_ellipsis
)))
278 prev
= SCM_CDRLOC (walk
);
281 *prev
= scm_is_null (walk
)
283 : scm_append (scm_list_2 (base
, scm_cdr (walk
)));
289 /* Initialize the global variable %load-path, given the value of the
290 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
291 GUILE_LOAD_PATH environment variable. */
293 scm_init_load_path ()
299 #ifdef SCM_LIBRARY_DIR
300 env
= getenv ("GUILE_SYSTEM_PATH");
301 if (env
&& strcmp (env
, "") == 0)
302 /* special-case interpret system-path=="" as meaning no system path instead
306 path
= scm_parse_path (scm_from_locale_string (env
), path
);
308 path
= scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR
),
309 scm_from_locale_string (SCM_SITE_DIR
),
310 scm_from_locale_string (SCM_GLOBAL_SITE_DIR
),
311 scm_from_locale_string (SCM_PKGDATA_DIR
));
313 env
= getenv ("GUILE_SYSTEM_COMPILED_PATH");
314 if (env
&& strcmp (env
, "") == 0)
318 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
321 cpath
= scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR
),
322 scm_from_locale_string (SCM_SITE_CCACHE_DIR
));
325 #endif /* SCM_LIBRARY_DIR */
334 #define FALLBACK_DIR \
335 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
337 if ((e
= getenv ("XDG_CACHE_HOME")))
338 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
339 else if ((e
= getenv ("HOME")))
340 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
342 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
343 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
345 #endif /* HAVE_GETPWENT */
347 else if ((e
= getenv ("LOCALAPPDATA")))
348 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
349 else if ((e
= getenv ("APPDATA")))
350 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
351 #endif /* __MINGW32__ */
356 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
359 env
= getenv ("GUILE_LOAD_PATH");
361 path
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), path
);
363 env
= getenv ("GUILE_LOAD_COMPILED_PATH");
365 cpath
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), cpath
);
367 *scm_loc_load_path
= path
;
368 *scm_loc_load_compiled_path
= cpath
;
371 SCM scm_listofnullstr
;
373 /* Utility functions for assembling C strings in a buffer.
382 stringbuf_free (void *data
)
384 struct stringbuf
*buf
= (struct stringbuf
*)data
;
389 stringbuf_grow (struct stringbuf
*buf
)
391 size_t ptroff
= buf
->ptr
- buf
->buf
;
393 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
394 buf
->ptr
= buf
->buf
+ ptroff
;
398 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
400 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
401 size_t len
= scm_to_locale_stringbuf (str
, buf
->ptr
, max_len
);
404 /* buffer is too small, double its size and try again.
406 stringbuf_grow (buf
);
407 stringbuf_cat_locale_string (buf
, str
);
411 /* string fits, terminate it and check for embedded '\0'.
413 buf
->ptr
[len
] = '\0';
414 if (strlen (buf
->ptr
) != len
)
415 scm_misc_error (NULL
,
416 "string contains #\\nul character: ~S",
423 stringbuf_cat (struct stringbuf
*buf
, char *str
)
425 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
426 size_t len
= strlen (str
);
429 /* buffer is too small, double its size and try again.
431 stringbuf_grow (buf
);
432 stringbuf_cat (buf
, str
);
436 /* string fits, copy it into buffer.
438 strcpy (buf
->ptr
, str
);
445 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
447 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
452 ext
= scm_to_locale_string (SCM_CAR (extensions
));
453 extlen
= strlen (ext
);
454 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
455 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
464 #define FILE_NAME_SEPARATOR_STRING "\\"
466 #define FILE_NAME_SEPARATOR_STRING "/"
470 is_file_name_separator (SCM c
)
472 if (scm_is_eq (c
, SCM_MAKE_CHAR ('/')))
475 if (scm_is_eq (c
, SCM_MAKE_CHAR ('\\')))
482 is_drive_letter (SCM c
)
485 if (SCM_CHAR (c
) >= 'a' && SCM_CHAR (c
) <= 'z')
487 else if (SCM_CHAR (c
) >= 'A' && SCM_CHAR (c
) <= 'Z')
494 is_absolute_file_name (SCM filename
)
496 size_t filename_len
= scm_c_string_length (filename
);
498 if (filename_len
>= 1
499 && is_file_name_separator (scm_c_string_ref (filename
, 0))
501 /* On Windows, one initial separator indicates a drive-relative
502 path. Two separators indicate a Universal Naming Convention
503 (UNC) path. UNC paths are always absolute. */
505 && is_file_name_separator (scm_c_string_ref (filename
, 1))
509 if (filename_len
>= 3
510 && is_drive_letter (scm_c_string_ref (filename
, 0))
511 && scm_is_eq (scm_c_string_ref (filename
, 1), SCM_MAKE_CHAR (':'))
512 && is_file_name_separator (scm_c_string_ref (filename
, 2)))
517 /* Search PATH for a directory containing a file named FILENAME.
518 The file must be readable, and not a directory.
519 If we find one, return its full pathname; otherwise, return #f.
520 If FILENAME is absolute, return it unchanged.
521 We also fill *stat_buf corresponding to the returned pathname.
522 If given, EXTENSIONS is a list of strings; for each directory
523 in PATH, we search for FILENAME concatenated with each EXTENSION. */
525 search_path (SCM path
, SCM filename
, SCM extensions
, SCM require_exts
,
526 struct stat
*stat_buf
)
528 struct stringbuf buf
;
529 char *filename_chars
;
531 SCM result
= SCM_BOOL_F
;
533 if (scm_ilength (path
) < 0)
534 scm_misc_error ("%search-path", "path is not a proper list: ~a",
536 if (scm_ilength (extensions
) < 0)
537 scm_misc_error ("%search-path", "bad extensions list: ~a",
538 scm_list_1 (extensions
));
540 scm_dynwind_begin (0);
542 filename_chars
= scm_to_locale_string (filename
);
543 filename_len
= strlen (filename_chars
);
544 scm_dynwind_free (filename_chars
);
546 /* If FILENAME is absolute and is still valid, return it unchanged. */
547 if (is_absolute_file_name (filename
))
549 if ((scm_is_false (require_exts
) ||
550 scm_c_string_has_an_ext (filename_chars
, filename_len
,
552 && stat (filename_chars
, stat_buf
) == 0
553 && !(stat_buf
->st_mode
& S_IFDIR
))
558 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
562 for (endp
= filename_chars
+ filename_len
- 1;
563 endp
>= filename_chars
;
568 if (scm_is_true (require_exts
) &&
569 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
572 /* This filename has an extension, but not one of the right
576 /* This filename already has an extension, so cancel the
577 list of extensions. */
578 extensions
= SCM_EOL
;
581 else if (is_file_name_separator (SCM_MAKE_CHAR (*endp
)))
582 /* This filename has no extension, so keep the current list
588 /* This simplifies the loop below a bit.
590 if (scm_is_null (extensions
))
591 extensions
= scm_listofnullstr
;
594 buf
.buf
= scm_malloc (buf
.buf_len
);
595 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
597 /* Try every path element.
599 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
601 SCM dir
= SCM_CAR (path
);
606 stringbuf_cat_locale_string (&buf
, dir
);
608 /* Concatenate the path name and the filename. */
610 if (buf
.ptr
> buf
.buf
611 && !is_file_name_separator (SCM_MAKE_CHAR (buf
.ptr
[-1])))
612 stringbuf_cat (&buf
, FILE_NAME_SEPARATOR_STRING
);
614 stringbuf_cat (&buf
, filename_chars
);
615 sans_ext_len
= buf
.ptr
- buf
.buf
;
617 /* Try every extension. */
618 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
620 SCM ext
= SCM_CAR (exts
);
622 buf
.ptr
= buf
.buf
+ sans_ext_len
;
623 stringbuf_cat_locale_string (&buf
, ext
);
625 /* If the file exists at all, we should return it. If the
626 file is inaccessible, then that's an error. */
628 if (stat (buf
.buf
, stat_buf
) == 0
629 && ! (stat_buf
->st_mode
& S_IFDIR
))
631 result
= scm_from_locale_string (buf
.buf
);
636 if (!SCM_NULL_OR_NIL_P (exts
))
637 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
640 if (!SCM_NULL_OR_NIL_P (path
))
641 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
648 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
649 (SCM path
, SCM filename
, SCM rest
),
650 "Search @var{path} for a directory containing a file named\n"
651 "@var{filename}. The file must be readable, and not a directory.\n"
652 "If we find one, return its full filename; otherwise, return\n"
653 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
654 "If given, @var{rest} is a list of extension strings; for each\n"
655 "directory in @var{path}, we search for @var{filename}\n"
656 "concatenated with each extension.")
657 #define FUNC_NAME s_scm_search_path
659 SCM extensions
, require_exts
;
660 struct stat stat_buf
;
662 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
664 /* Called either by Scheme code that didn't provide the optional
665 arguments, or C code that used the Guile 1.8 signature (2 required,
666 1 optional arg) and passed '() or nothing as the EXTENSIONS
668 extensions
= SCM_EOL
;
669 require_exts
= SCM_UNDEFINED
;
673 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
675 /* Called by Scheme code written for 1.9. */
676 extensions
= SCM_CAR (rest
);
677 if (scm_is_null (SCM_CDR (rest
)))
678 require_exts
= SCM_UNDEFINED
;
681 require_exts
= SCM_CADR (rest
);
682 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
683 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
688 /* Called by C code that uses the 1.8 signature, i.e., which
689 expects the 3rd argument to be EXTENSIONS. */
691 require_exts
= SCM_UNDEFINED
;
695 if (SCM_UNBNDP (extensions
))
696 extensions
= SCM_EOL
;
698 if (SCM_UNBNDP (require_exts
))
699 require_exts
= SCM_BOOL_F
;
701 return search_path (path
, filename
, extensions
, require_exts
, &stat_buf
);
706 /* Search %load-path for a directory containing a file named FILENAME.
707 The file must be readable, and not a directory.
708 If we find one, return its full filename; otherwise, return #f.
709 If FILENAME is absolute, return it unchanged. */
710 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
712 "Search @var{%load-path} for the file named @var{filename},\n"
713 "which must be readable by the current user. If @var{filename}\n"
714 "is found in the list of paths to search or is an absolute\n"
715 "pathname, return its full pathname. Otherwise, return\n"
716 "@code{#f}. Filenames may have any of the optional extensions\n"
717 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
718 "will try each extension automatically.")
719 #define FUNC_NAME s_scm_sys_search_load_path
721 struct stat stat_buf
;
723 SCM_VALIDATE_STRING (1, filename
);
725 return search_path (*scm_loc_load_path
, filename
, *scm_loc_load_extensions
,
726 SCM_BOOL_F
, &stat_buf
);
731 /* Return true if COMPILED_FILENAME is newer than source file
732 FULL_FILENAME, false otherwise. */
734 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
,
735 struct stat
*stat_source
, struct stat
*stat_compiled
)
737 int compiled_is_newer
;
738 struct timespec source_mtime
, compiled_mtime
;
740 source_mtime
= get_stat_mtime (stat_source
);
741 compiled_mtime
= get_stat_mtime (stat_compiled
);
743 if (source_mtime
.tv_sec
< compiled_mtime
.tv_sec
744 || (source_mtime
.tv_sec
== compiled_mtime
.tv_sec
745 && source_mtime
.tv_nsec
<= compiled_mtime
.tv_nsec
))
746 compiled_is_newer
= 1;
749 compiled_is_newer
= 0;
750 scm_puts (";;; note: source file ", scm_current_error_port ());
751 scm_display (full_filename
, scm_current_error_port ());
752 scm_puts ("\n;;; newer than compiled ", scm_current_error_port ());
753 scm_display (compiled_filename
, scm_current_error_port ());
754 scm_puts ("\n", scm_current_error_port ());
757 return compiled_is_newer
;
760 SCM_KEYWORD (kw_env
, "env");
761 SCM_KEYWORD (kw_opts
, "opts");
763 SCM_SYMBOL (sym_compile_file
, "compile-file");
764 SCM_SYMBOL (sym_auto_compilation_options
, "%auto-compilation-options");
767 do_try_auto_compile (void *data
)
769 SCM source
= PTR2SCM (data
);
770 SCM comp_mod
, compile_file
;
772 scm_puts (";;; compiling ", scm_current_error_port ());
773 scm_display (source
, scm_current_error_port ());
774 scm_newline (scm_current_error_port ());
776 comp_mod
= scm_c_resolve_module ("system base compile");
777 compile_file
= scm_module_variable (comp_mod
, sym_compile_file
);
779 if (scm_is_true (compile_file
))
781 /* Auto-compile in the context of the current module. */
785 opts
= scm_module_variable (scm_the_root_module (),
786 sym_auto_compilation_options
);
787 if (SCM_VARIABLEP (opts
))
788 opts
= SCM_VARIABLE_REF (opts
);
796 args
[4] = scm_current_module ();
798 /* Assume `*current-warning-prefix*' has an appropriate value. */
799 res
= scm_call_n (scm_variable_ref (compile_file
), args
, 5);
801 scm_puts (";;; compiled ", scm_current_error_port ());
802 scm_display (res
, scm_current_error_port ());
803 scm_newline (scm_current_error_port ());
808 scm_puts (";;; it seems ", scm_current_error_port ());
809 scm_display (source
, scm_current_error_port ());
810 scm_puts ("\n;;; is part of the compiler; skipping auto-compilation\n",
811 scm_current_error_port ());
817 auto_compile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
819 SCM source
= PTR2SCM (data
);
822 oport
= scm_open_output_string ();
823 scm_print_exception (oport
, SCM_BOOL_F
, tag
, throw_args
);
825 scm_puts (";;; WARNING: compilation of ", scm_current_warning_port ());
826 scm_display (source
, scm_current_warning_port ());
827 scm_puts (" failed:\n", scm_current_warning_port ());
829 lines
= scm_string_split (scm_get_output_string (oport
),
830 SCM_MAKE_CHAR ('\n'));
831 for (; scm_is_pair (lines
); lines
= scm_cdr (lines
))
832 if (scm_c_string_length (scm_car (lines
)))
834 scm_puts (";;; ", scm_current_warning_port ());
835 scm_display (scm_car (lines
), scm_current_warning_port ());
836 scm_newline (scm_current_warning_port ());
839 scm_close_port (oport
);
844 SCM_DEFINE (scm_sys_warn_auto_compilation_enabled
, "%warn-auto-compilation-enabled", 0, 0, 0,
846 #define FUNC_NAME s_scm_sys_warn_auto_compilation_enabled
848 static int message_shown
= 0;
852 scm_puts (";;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0\n"
853 ";;; or pass the --no-auto-compile argument to disable.\n",
854 scm_current_warning_port ());
858 return SCM_UNSPECIFIED
;
863 scm_try_auto_compile (SCM source
)
865 if (scm_is_false (*scm_loc_load_should_auto_compile
))
868 scm_sys_warn_auto_compilation_enabled ();
869 return scm_c_catch (SCM_BOOL_T
,
872 auto_compile_catch_handler
,
877 /* The auto-compilation code will residualize a .go file in the cache
878 dir: by default, $HOME/.cache/guile/2.0/ccache/PATH.go. This
879 function determines the PATH to use as a key into the compilation
880 cache. See also (system base compile):compiled-file-name. */
882 canonical_suffix (SCM fname
)
886 /* CANON should be absolute. */
887 canon
= scm_canonicalize_path (fname
);
891 size_t len
= scm_c_string_length (canon
);
893 /* On Windows, an absolute file name that doesn't start with a
894 separator starts with a drive component. Transform the drive
895 component to a file name element: c:\foo -> \c\foo. */
897 && is_absolute_file_name (canon
)
898 && !is_file_name_separator (scm_c_string_ref (canon
, 0)))
899 return scm_string_append
900 (scm_list_3 (scm_from_latin1_string (FILE_NAME_SEPARATOR_STRING
),
901 scm_c_substring (canon
, 0, 1),
902 scm_c_substring (canon
, 2, len
)));
909 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
911 "Search @var{%load-path} for the file named @var{filename} and\n"
912 "load it into the top-level environment.\n\n"
913 "If @var{filename} is a relative pathname and is not found in\n"
914 "the list of search paths, one of three things may happen,\n"
915 "depending on the optional second argument,\n"
916 "@var{exception_on_not_found}. If it is @code{#f}, @code{#f}\n"
917 "will be returned. If it is a procedure, it will be called\n"
918 "with no arguments. Otherwise an error is signalled.")
919 #define FUNC_NAME s_scm_primitive_load_path
921 SCM filename
, exception_on_not_found
;
922 SCM full_filename
, compiled_filename
;
923 int compiled_is_fallback
= 0;
924 SCM hook
= *scm_loc_load_hook
;
925 struct stat stat_source
, stat_compiled
;
927 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
928 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
931 if (scm_is_string (args
))
933 /* C code written for 1.8 and earlier expects this function to take a
934 single argument (the file name). */
936 exception_on_not_found
= SCM_UNDEFINED
;
940 /* Starting from 1.9, this function takes 1 required and 1 optional
944 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
945 if (len
< 1 || len
> 2)
946 scm_error_num_args_subr (FUNC_NAME
);
948 filename
= SCM_CAR (args
);
949 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
951 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
954 if (SCM_UNBNDP (exception_on_not_found
))
955 exception_on_not_found
= SCM_BOOL_T
;
957 full_filename
= search_path (*scm_loc_load_path
, filename
,
958 *scm_loc_load_extensions
, SCM_BOOL_F
,
962 search_path (*scm_loc_load_compiled_path
, filename
,
963 *scm_loc_load_compiled_extensions
, SCM_BOOL_T
,
966 if (scm_is_false (compiled_filename
)
967 && scm_is_true (full_filename
)
968 && scm_is_true (*scm_loc_compile_fallback_path
)
969 && scm_is_false (*scm_loc_fresh_auto_compile
)
970 && scm_is_pair (*scm_loc_load_compiled_extensions
)
971 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
974 char *fallback_chars
;
976 fallback
= scm_string_append
977 (scm_list_3 (*scm_loc_compile_fallback_path
,
978 canonical_suffix (full_filename
),
979 scm_car (*scm_loc_load_compiled_extensions
)));
981 fallback_chars
= scm_to_locale_string (fallback
);
982 if (stat (fallback_chars
, &stat_compiled
) == 0)
984 compiled_filename
= fallback
;
985 compiled_is_fallback
= 1;
987 free (fallback_chars
);
990 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
992 if (scm_is_true (scm_procedure_p (exception_on_not_found
)))
993 return scm_call_0 (exception_on_not_found
);
994 else if (scm_is_false (exception_on_not_found
))
997 SCM_MISC_ERROR ("Unable to find file ~S in load path",
998 scm_list_1 (filename
));
1001 if (!scm_is_false (hook
))
1002 scm_call_1 (hook
, (scm_is_true (full_filename
)
1003 ? full_filename
: compiled_filename
));
1005 if (scm_is_false (full_filename
)
1006 || (scm_is_true (compiled_filename
)
1007 && compiled_is_fresh (full_filename
, compiled_filename
,
1008 &stat_source
, &stat_compiled
)))
1009 return scm_load_compiled_with_vm (compiled_filename
);
1011 /* Perhaps there was the installed .go that was stale, but our fallback is
1012 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
1014 if (!compiled_is_fallback
1015 && scm_is_true (*scm_loc_compile_fallback_path
)
1016 && scm_is_false (*scm_loc_fresh_auto_compile
)
1017 && scm_is_pair (*scm_loc_load_compiled_extensions
)
1018 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
1021 char *fallback_chars
;
1024 fallback
= scm_string_append
1025 (scm_list_3 (*scm_loc_compile_fallback_path
,
1026 canonical_suffix (full_filename
),
1027 scm_car (*scm_loc_load_compiled_extensions
)));
1029 fallback_chars
= scm_to_locale_string (fallback
);
1030 stat_ret
= stat (fallback_chars
, &stat_compiled
);
1031 free (fallback_chars
);
1033 if (stat_ret
== 0 && compiled_is_fresh (full_filename
, fallback
,
1034 &stat_source
, &stat_compiled
))
1036 scm_puts (";;; found fresh local cache at ", scm_current_warning_port ());
1037 scm_display (fallback
, scm_current_warning_port ());
1038 scm_newline (scm_current_warning_port ());
1039 return scm_load_compiled_with_vm (fallback
);
1043 /* Otherwise, we bottom out here. */
1045 SCM freshly_compiled
= scm_try_auto_compile (full_filename
);
1047 if (scm_is_true (freshly_compiled
))
1048 return scm_load_compiled_with_vm (freshly_compiled
);
1050 return scm_primitive_load (full_filename
);
1056 scm_c_primitive_load_path (const char *filename
)
1058 return scm_primitive_load_path (scm_from_locale_string (filename
));
1062 scm_init_eval_in_scheme (void)
1064 SCM eval_scm
, eval_go
;
1065 struct stat stat_source
, stat_compiled
;
1067 eval_scm
= search_path (*scm_loc_load_path
,
1068 scm_from_locale_string ("ice-9/eval.scm"),
1069 SCM_EOL
, SCM_BOOL_F
, &stat_source
);
1070 eval_go
= search_path (*scm_loc_load_compiled_path
,
1071 scm_from_locale_string ("ice-9/eval.go"),
1072 SCM_EOL
, SCM_BOOL_F
, &stat_compiled
);
1074 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
1075 && compiled_is_fresh (eval_scm
, eval_go
,
1076 &stat_source
, &stat_compiled
))
1077 scm_load_compiled_with_vm (eval_go
);
1079 /* if we have no eval.go, we shouldn't load any compiled code at all */
1080 *scm_loc_load_compiled_path
= SCM_EOL
;
1084 /* Information about the build environment. */
1086 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
1087 scm_from_locale_string (HOST_TYPE
));
1090 /* Initialize the scheme variable %guile-build-info, based on data
1091 provided by the Makefile, via libpath.h. */
1095 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
1096 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
1099 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
1101 SCM key
= scm_from_locale_symbol (info
[i
].name
);
1102 SCM val
= scm_from_locale_string (info
[i
].value
);
1103 *loc
= scm_acons (key
, val
, *loc
);
1105 #ifdef PACKAGE_PACKAGER
1106 *loc
= scm_acons (scm_from_latin1_symbol ("packager"),
1107 scm_from_latin1_string (PACKAGE_PACKAGER
),
1110 #ifdef PACKAGE_PACKAGER_VERSION
1111 *loc
= scm_acons (scm_from_latin1_symbol ("packager-version"),
1112 scm_from_latin1_string (PACKAGE_PACKAGER_VERSION
),
1115 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
1116 *loc
= scm_acons (scm_from_latin1_symbol ("packager-bug-reports"),
1117 scm_from_latin1_string (PACKAGE_PACKAGER_BUG_REPORTS
),
1126 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
1127 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
1128 scm_loc_load_extensions
1129 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
1130 scm_list_2 (scm_from_locale_string (".scm"),
1132 scm_loc_load_compiled_path
1133 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
1134 scm_loc_load_compiled_extensions
1135 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
1136 scm_list_1 (scm_from_locale_string (".go"))));
1137 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
1139 scm_loc_compile_fallback_path
1140 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
1141 scm_loc_load_should_auto_compile
1142 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-auto-compile", SCM_BOOL_F
));
1143 scm_loc_fresh_auto_compile
1144 = SCM_VARIABLE_LOC (scm_c_define ("%fresh-auto-compile", SCM_BOOL_F
));
1146 scm_ellipsis
= scm_from_latin1_string ("...");
1148 the_reader
= scm_make_fluid_with_default (SCM_BOOL_F
);
1149 scm_c_define("current-reader", the_reader
);
1151 scm_c_define ("load-compiled",
1152 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
1153 scm_load_compiled_with_vm
));
1157 #include "libguile/load.x"
1161 scm_init_load_should_auto_compile ()
1163 char *auto_compile
= getenv ("GUILE_AUTO_COMPILE");
1165 if (auto_compile
&& strcmp (auto_compile
, "0") == 0)
1167 *scm_loc_load_should_auto_compile
= SCM_BOOL_F
;
1168 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;
1170 /* Allow "freshen" also. */
1171 else if (auto_compile
&& strncmp (auto_compile
, "fresh", 5) == 0)
1173 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1174 *scm_loc_fresh_auto_compile
= SCM_BOOL_T
;
1178 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1179 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;