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
;
92 SCM_VALIDATE_STRING (1, filename
);
93 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
94 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
97 if (!scm_is_false (hook
))
98 scm_call_1 (hook
, filename
);
103 port
= scm_open_file_with_encoding (filename
,
104 scm_from_latin1_string ("r"),
105 SCM_BOOL_T
, /* guess_encoding */
106 scm_from_latin1_string ("UTF-8"));
108 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
109 scm_i_dynwind_current_load_port (port
);
115 /* Lookup and use the current reader to read the next
117 reader
= scm_fluid_ref (the_reader
);
118 if (scm_is_false (reader
))
119 form
= scm_read (port
);
121 form
= scm_call_1 (reader
, port
);
123 if (SCM_EOF_OBJECT_P (form
))
126 ret
= scm_primitive_eval_x (form
);
130 scm_close_port (port
);
137 scm_c_primitive_load (const char *filename
)
139 return scm_primitive_load (scm_from_locale_string (filename
));
143 /* Builtin path to scheme library files. */
144 #ifdef SCM_PKGDATA_DIR
145 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
147 "Return the name of the directory where Scheme packages, modules and\n"
148 "libraries are kept. On most Unix systems, this will be\n"
149 "@samp{/usr/local/share/guile}.")
150 #define FUNC_NAME s_scm_sys_package_data_dir
152 return scm_from_locale_string (SCM_PKGDATA_DIR
);
155 #endif /* SCM_PKGDATA_DIR */
157 #ifdef SCM_LIBRARY_DIR
158 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
160 "Return the directory where the Guile Scheme library files are installed.\n"
161 "E.g., may return \"/usr/share/guile/1.3.5\".")
162 #define FUNC_NAME s_scm_sys_library_dir
164 return scm_from_locale_string (SCM_LIBRARY_DIR
);
167 #endif /* SCM_LIBRARY_DIR */
170 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
172 "Return the directory where users should install Scheme code for use\n"
173 "with this version of Guile.\n\n"
174 "E.g., may return \"/usr/share/guile/site/" SCM_EFFECTIVE_VERSION
"\".")
175 #define FUNC_NAME s_scm_sys_site_dir
177 return scm_from_locale_string (SCM_SITE_DIR
);
180 #endif /* SCM_SITE_DIR */
182 #ifdef SCM_GLOBAL_SITE_DIR
183 SCM_DEFINE (scm_sys_global_site_dir
, "%global-site-dir", 0,0,0,
185 "Return the directory where users should install Scheme code for use\n"
186 "with all versions of Guile.\n\n"
187 "E.g., may return \"/usr/share/guile/site\".")
188 #define FUNC_NAME s_scm_sys_global_site_dir
190 return scm_from_locale_string (SCM_GLOBAL_SITE_DIR
);
193 #endif /* SCM_GLOBAL_SITE_DIR */
195 #ifdef SCM_SITE_CCACHE_DIR
196 SCM_DEFINE (scm_sys_site_ccache_dir
, "%site-ccache-dir", 0,0,0,
198 "Return the directory where users should install compiled\n"
199 "@code{.go} files for use with this version of Guile.\n\n"
200 "E.g., may return \"/usr/lib/guile/" SCM_EFFECTIVE_VERSION
"/site-ccache\".")
201 #define FUNC_NAME s_scm_sys_site_ccache_dir
203 return scm_from_locale_string (SCM_SITE_CCACHE_DIR
);
206 #endif /* SCM_SITE_CCACHE_DIR */
210 /* Initializing the load path, and searching it. */
212 /* List of names of directories we search for files to load. */
213 static SCM
*scm_loc_load_path
;
215 /* List of extensions we try adding to the filenames. */
216 static SCM
*scm_loc_load_extensions
;
218 /* Like %load-path and %load-extensions, but for compiled files. */
219 static SCM
*scm_loc_load_compiled_path
;
220 static SCM
*scm_loc_load_compiled_extensions
;
222 /* Whether we should try to auto-compile. */
223 static SCM
*scm_loc_load_should_auto_compile
;
225 /* Whether to treat all auto-compiled files as stale. */
226 static SCM
*scm_loc_fresh_auto_compile
;
228 /* The fallback path for auto-compilation */
229 static SCM
*scm_loc_compile_fallback_path
;
231 /* Ellipsis: "..." */
232 static SCM scm_ellipsis
;
234 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
235 (SCM path
, SCM tail
),
236 "Parse @var{path}, which is expected to be a colon-separated\n"
237 "string, into a list and return the resulting list with\n"
238 "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n"
240 #define FUNC_NAME s_scm_parse_path
243 SCM sep
= SCM_MAKE_CHAR (';');
245 SCM sep
= SCM_MAKE_CHAR (':');
248 if (SCM_UNBNDP (tail
))
250 return (scm_is_false (path
)
252 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
256 SCM_DEFINE (scm_parse_path_with_ellipsis
, "parse-path-with-ellipsis", 2, 0, 0,
257 (SCM path
, SCM base
),
258 "Parse @var{path}, which is expected to be a colon-separated\n"
259 "string, into a list and return the resulting list with\n"
260 "@var{base} (a list) spliced in place of the @code{...} path\n"
261 "component, if present, or else @var{base} is added to the end.\n"
262 "If @var{path} is @code{#f}, @var{base} is returned.")
263 #define FUNC_NAME s_scm_parse_path_with_ellipsis
265 SCM lst
= scm_parse_path (path
, SCM_EOL
);
269 while (!scm_is_null (walk
) &&
270 scm_is_false (scm_equal_p (scm_car (walk
), scm_ellipsis
)))
272 prev
= SCM_CDRLOC (walk
);
275 *prev
= scm_is_null (walk
)
277 : scm_append (scm_list_2 (base
, scm_cdr (walk
)));
283 /* Initialize the global variable %load-path, given the value of the
284 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
285 GUILE_LOAD_PATH environment variable. */
287 scm_init_load_path ()
293 #ifdef SCM_LIBRARY_DIR
294 env
= getenv ("GUILE_SYSTEM_PATH");
295 if (env
&& strcmp (env
, "") == 0)
296 /* special-case interpret system-path=="" as meaning no system path instead
300 path
= scm_parse_path (scm_from_locale_string (env
), path
);
302 path
= scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR
),
303 scm_from_locale_string (SCM_SITE_DIR
),
304 scm_from_locale_string (SCM_GLOBAL_SITE_DIR
),
305 scm_from_locale_string (SCM_PKGDATA_DIR
));
307 env
= getenv ("GUILE_SYSTEM_COMPILED_PATH");
308 if (env
&& strcmp (env
, "") == 0)
312 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
315 cpath
= scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR
),
316 scm_from_locale_string (SCM_SITE_CCACHE_DIR
));
319 #endif /* SCM_LIBRARY_DIR */
328 #define FALLBACK_DIR \
329 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
331 if ((e
= getenv ("XDG_CACHE_HOME")))
332 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
333 else if ((e
= getenv ("HOME")))
334 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
336 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
337 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
339 #endif /* HAVE_GETPWENT */
341 else if ((e
= getenv ("LOCALAPPDATA")))
342 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
343 else if ((e
= getenv ("APPDATA")))
344 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
345 #endif /* __MINGW32__ */
350 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
353 env
= getenv ("GUILE_LOAD_PATH");
355 path
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), path
);
357 env
= getenv ("GUILE_LOAD_COMPILED_PATH");
359 cpath
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), cpath
);
361 *scm_loc_load_path
= path
;
362 *scm_loc_load_compiled_path
= cpath
;
365 SCM scm_listofnullstr
;
367 /* Utility functions for assembling C strings in a buffer.
376 stringbuf_free (void *data
)
378 struct stringbuf
*buf
= (struct stringbuf
*)data
;
383 stringbuf_grow (struct stringbuf
*buf
)
385 size_t ptroff
= buf
->ptr
- buf
->buf
;
387 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
388 buf
->ptr
= buf
->buf
+ ptroff
;
392 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
394 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
395 size_t len
= scm_to_locale_stringbuf (str
, buf
->ptr
, max_len
);
398 /* buffer is too small, double its size and try again.
400 stringbuf_grow (buf
);
401 stringbuf_cat_locale_string (buf
, str
);
405 /* string fits, terminate it and check for embedded '\0'.
407 buf
->ptr
[len
] = '\0';
408 if (strlen (buf
->ptr
) != len
)
409 scm_misc_error (NULL
,
410 "string contains #\\nul character: ~S",
417 stringbuf_cat (struct stringbuf
*buf
, char *str
)
419 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
420 size_t len
= strlen (str
);
423 /* buffer is too small, double its size and try again.
425 stringbuf_grow (buf
);
426 stringbuf_cat (buf
, str
);
430 /* string fits, copy it into buffer.
432 strcpy (buf
->ptr
, str
);
439 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
441 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
446 ext
= scm_to_locale_string (SCM_CAR (extensions
));
447 extlen
= strlen (ext
);
448 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
449 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
458 #define FILE_NAME_SEPARATOR_STRING "\\"
460 #define FILE_NAME_SEPARATOR_STRING "/"
464 is_file_name_separator (SCM c
)
466 if (scm_is_eq (c
, SCM_MAKE_CHAR ('/')))
469 if (scm_is_eq (c
, SCM_MAKE_CHAR ('\\')))
476 is_drive_letter (SCM c
)
479 if (SCM_CHAR (c
) >= 'a' && SCM_CHAR (c
) <= 'z')
481 else if (SCM_CHAR (c
) >= 'A' && SCM_CHAR (c
) <= 'Z')
488 is_absolute_file_name (SCM filename
)
490 size_t filename_len
= scm_c_string_length (filename
);
492 if (filename_len
>= 1
493 && is_file_name_separator (scm_c_string_ref (filename
, 0))
495 /* On Windows, one initial separator indicates a drive-relative
496 path. Two separators indicate a Universal Naming Convention
497 (UNC) path. UNC paths are always absolute. */
499 && is_file_name_separator (scm_c_string_ref (filename
, 1))
503 if (filename_len
>= 3
504 && is_drive_letter (scm_c_string_ref (filename
, 0))
505 && scm_is_eq (scm_c_string_ref (filename
, 1), SCM_MAKE_CHAR (':'))
506 && is_file_name_separator (scm_c_string_ref (filename
, 2)))
511 /* Search PATH for a directory containing a file named FILENAME.
512 The file must be readable, and not a directory.
513 If we find one, return its full pathname; otherwise, return #f.
514 If FILENAME is absolute, return it unchanged.
515 We also fill *stat_buf corresponding to the returned pathname.
516 If given, EXTENSIONS is a list of strings; for each directory
517 in PATH, we search for FILENAME concatenated with each EXTENSION. */
519 search_path (SCM path
, SCM filename
, SCM extensions
, SCM require_exts
,
520 struct stat
*stat_buf
)
522 struct stringbuf buf
;
523 char *filename_chars
;
525 SCM result
= SCM_BOOL_F
;
527 if (scm_ilength (path
) < 0)
528 scm_misc_error ("%search-path", "path is not a proper list: ~a",
530 if (scm_ilength (extensions
) < 0)
531 scm_misc_error ("%search-path", "bad extensions list: ~a",
532 scm_list_1 (extensions
));
534 scm_dynwind_begin (0);
536 filename_chars
= scm_to_locale_string (filename
);
537 filename_len
= strlen (filename_chars
);
538 scm_dynwind_free (filename_chars
);
540 /* If FILENAME is absolute and is still valid, return it unchanged. */
541 if (is_absolute_file_name (filename
))
543 if ((scm_is_false (require_exts
) ||
544 scm_c_string_has_an_ext (filename_chars
, filename_len
,
546 && stat (filename_chars
, stat_buf
) == 0
547 && !(stat_buf
->st_mode
& S_IFDIR
))
552 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
556 for (endp
= filename_chars
+ filename_len
- 1;
557 endp
>= filename_chars
;
562 if (scm_is_true (require_exts
) &&
563 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
566 /* This filename has an extension, but not one of the right
570 /* This filename already has an extension, so cancel the
571 list of extensions. */
572 extensions
= SCM_EOL
;
575 else if (is_file_name_separator (SCM_MAKE_CHAR (*endp
)))
576 /* This filename has no extension, so keep the current list
582 /* This simplifies the loop below a bit.
584 if (scm_is_null (extensions
))
585 extensions
= scm_listofnullstr
;
588 buf
.buf
= scm_malloc (buf
.buf_len
);
589 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
591 /* Try every path element.
593 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
595 SCM dir
= SCM_CAR (path
);
600 stringbuf_cat_locale_string (&buf
, dir
);
602 /* Concatenate the path name and the filename. */
604 if (buf
.ptr
> buf
.buf
605 && !is_file_name_separator (SCM_MAKE_CHAR (buf
.ptr
[-1])))
606 stringbuf_cat (&buf
, FILE_NAME_SEPARATOR_STRING
);
608 stringbuf_cat (&buf
, filename_chars
);
609 sans_ext_len
= buf
.ptr
- buf
.buf
;
611 /* Try every extension. */
612 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
614 SCM ext
= SCM_CAR (exts
);
616 buf
.ptr
= buf
.buf
+ sans_ext_len
;
617 stringbuf_cat_locale_string (&buf
, ext
);
619 /* If the file exists at all, we should return it. If the
620 file is inaccessible, then that's an error. */
622 if (stat (buf
.buf
, stat_buf
) == 0
623 && ! (stat_buf
->st_mode
& S_IFDIR
))
625 result
= scm_from_locale_string (buf
.buf
);
630 if (!SCM_NULL_OR_NIL_P (exts
))
631 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
634 if (!SCM_NULL_OR_NIL_P (path
))
635 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
642 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
643 (SCM path
, SCM filename
, SCM rest
),
644 "Search @var{path} for a directory containing a file named\n"
645 "@var{filename}. The file must be readable, and not a directory.\n"
646 "If we find one, return its full filename; otherwise, return\n"
647 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
648 "If given, @var{rest} is a list of extension strings; for each\n"
649 "directory in @var{path}, we search for @var{filename}\n"
650 "concatenated with each extension.")
651 #define FUNC_NAME s_scm_search_path
653 SCM extensions
, require_exts
;
654 struct stat stat_buf
;
656 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
658 /* Called either by Scheme code that didn't provide the optional
659 arguments, or C code that used the Guile 1.8 signature (2 required,
660 1 optional arg) and passed '() or nothing as the EXTENSIONS
662 extensions
= SCM_EOL
;
663 require_exts
= SCM_UNDEFINED
;
667 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
669 /* Called by Scheme code written for 1.9. */
670 extensions
= SCM_CAR (rest
);
671 if (scm_is_null (SCM_CDR (rest
)))
672 require_exts
= SCM_UNDEFINED
;
675 require_exts
= SCM_CADR (rest
);
676 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
677 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
682 /* Called by C code that uses the 1.8 signature, i.e., which
683 expects the 3rd argument to be EXTENSIONS. */
685 require_exts
= SCM_UNDEFINED
;
689 if (SCM_UNBNDP (extensions
))
690 extensions
= SCM_EOL
;
692 if (SCM_UNBNDP (require_exts
))
693 require_exts
= SCM_BOOL_F
;
695 return search_path (path
, filename
, extensions
, require_exts
, &stat_buf
);
700 /* Search %load-path for a directory containing a file named FILENAME.
701 The file must be readable, and not a directory.
702 If we find one, return its full filename; otherwise, return #f.
703 If FILENAME is absolute, return it unchanged. */
704 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
706 "Search @var{%load-path} for the file named @var{filename},\n"
707 "which must be readable by the current user. If @var{filename}\n"
708 "is found in the list of paths to search or is an absolute\n"
709 "pathname, return its full pathname. Otherwise, return\n"
710 "@code{#f}. Filenames may have any of the optional extensions\n"
711 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
712 "will try each extension automatically.")
713 #define FUNC_NAME s_scm_sys_search_load_path
715 struct stat stat_buf
;
717 SCM_VALIDATE_STRING (1, filename
);
719 return search_path (*scm_loc_load_path
, filename
, *scm_loc_load_extensions
,
720 SCM_BOOL_F
, &stat_buf
);
725 /* Return true if COMPILED_FILENAME is newer than source file
726 FULL_FILENAME, false otherwise. */
728 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
,
729 struct stat
*stat_source
, struct stat
*stat_compiled
)
731 int compiled_is_newer
;
732 struct timespec source_mtime
, compiled_mtime
;
734 source_mtime
= get_stat_mtime (stat_source
);
735 compiled_mtime
= get_stat_mtime (stat_compiled
);
737 if (source_mtime
.tv_sec
< compiled_mtime
.tv_sec
738 || (source_mtime
.tv_sec
== compiled_mtime
.tv_sec
739 && source_mtime
.tv_nsec
<= compiled_mtime
.tv_nsec
))
740 compiled_is_newer
= 1;
743 compiled_is_newer
= 0;
744 scm_puts_unlocked (";;; note: source file ", scm_current_error_port ());
745 scm_display (full_filename
, scm_current_error_port ());
746 scm_puts_unlocked ("\n;;; newer than compiled ", scm_current_error_port ());
747 scm_display (compiled_filename
, scm_current_error_port ());
748 scm_puts_unlocked ("\n", scm_current_error_port ());
751 return compiled_is_newer
;
754 SCM_KEYWORD (kw_env
, "env");
755 SCM_KEYWORD (kw_opts
, "opts");
757 SCM_SYMBOL (sym_compile_file
, "compile-file");
758 SCM_SYMBOL (sym_auto_compilation_options
, "%auto-compilation-options");
761 do_try_auto_compile (void *data
)
763 SCM source
= SCM_PACK_POINTER (data
);
764 SCM comp_mod
, compile_file
;
766 scm_puts_unlocked (";;; compiling ", scm_current_error_port ());
767 scm_display (source
, scm_current_error_port ());
768 scm_newline (scm_current_error_port ());
770 comp_mod
= scm_c_resolve_module ("system base compile");
771 compile_file
= scm_module_variable (comp_mod
, sym_compile_file
);
773 if (scm_is_true (compile_file
))
775 /* Auto-compile in the context of the current module. */
779 opts
= scm_module_variable (scm_the_root_module (),
780 sym_auto_compilation_options
);
781 if (SCM_VARIABLEP (opts
))
782 opts
= SCM_VARIABLE_REF (opts
);
790 args
[4] = scm_current_module ();
792 /* Assume `*current-warning-prefix*' has an appropriate value. */
793 res
= scm_call_n (scm_variable_ref (compile_file
), args
, 5);
795 scm_puts_unlocked (";;; compiled ", scm_current_error_port ());
796 scm_display (res
, scm_current_error_port ());
797 scm_newline (scm_current_error_port ());
802 scm_puts_unlocked (";;; it seems ", scm_current_error_port ());
803 scm_display (source
, scm_current_error_port ());
804 scm_puts_unlocked ("\n;;; is part of the compiler; skipping auto-compilation\n",
805 scm_current_error_port ());
811 auto_compile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
813 SCM source
= SCM_PACK_POINTER (data
);
816 oport
= scm_open_output_string ();
817 scm_print_exception (oport
, SCM_BOOL_F
, tag
, throw_args
);
819 scm_puts_unlocked (";;; WARNING: compilation of ", scm_current_warning_port ());
820 scm_display (source
, scm_current_warning_port ());
821 scm_puts_unlocked (" failed:\n", scm_current_warning_port ());
823 lines
= scm_string_split (scm_get_output_string (oport
),
824 SCM_MAKE_CHAR ('\n'));
825 for (; scm_is_pair (lines
); lines
= scm_cdr (lines
))
826 if (scm_c_string_length (scm_car (lines
)))
828 scm_puts_unlocked (";;; ", scm_current_warning_port ());
829 scm_display (scm_car (lines
), scm_current_warning_port ());
830 scm_newline (scm_current_warning_port ());
833 scm_close_port (oport
);
838 SCM_DEFINE (scm_sys_warn_auto_compilation_enabled
, "%warn-auto-compilation-enabled", 0, 0, 0,
840 #define FUNC_NAME s_scm_sys_warn_auto_compilation_enabled
842 static int message_shown
= 0;
846 scm_puts_unlocked (";;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0\n"
847 ";;; or pass the --no-auto-compile argument to disable.\n",
848 scm_current_warning_port ());
852 return SCM_UNSPECIFIED
;
857 scm_try_auto_compile (SCM source
)
859 if (scm_is_false (*scm_loc_load_should_auto_compile
))
862 scm_sys_warn_auto_compilation_enabled ();
863 return scm_c_catch (SCM_BOOL_T
,
865 SCM_UNPACK_POINTER (source
),
866 auto_compile_catch_handler
,
867 SCM_UNPACK_POINTER (source
),
871 /* The auto-compilation code will residualize a .go file in the cache
872 dir: by default, $HOME/.cache/guile/2.0/ccache/PATH.go. This
873 function determines the PATH to use as a key into the compilation
874 cache. See also (system base compile):compiled-file-name. */
876 canonical_suffix (SCM fname
)
880 /* CANON should be absolute. */
881 canon
= scm_canonicalize_path (fname
);
885 size_t len
= scm_c_string_length (canon
);
887 /* On Windows, an absolute file name that doesn't start with a
888 separator starts with a drive component. Transform the drive
889 component to a file name element: c:\foo -> \c\foo. */
891 && is_absolute_file_name (canon
)
892 && !is_file_name_separator (scm_c_string_ref (canon
, 0)))
893 return scm_string_append
894 (scm_list_3 (scm_from_latin1_string (FILE_NAME_SEPARATOR_STRING
),
895 scm_c_substring (canon
, 0, 1),
896 scm_c_substring (canon
, 2, len
)));
903 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
905 "Search @var{%load-path} for the file named @var{filename} and\n"
906 "load it into the top-level environment.\n\n"
907 "If @var{filename} is a relative pathname and is not found in\n"
908 "the list of search paths, one of three things may happen,\n"
909 "depending on the optional second argument,\n"
910 "@var{exception_on_not_found}. If it is @code{#f}, @code{#f}\n"
911 "will be returned. If it is a procedure, it will be called\n"
912 "with no arguments. Otherwise an error is signalled.")
913 #define FUNC_NAME s_scm_primitive_load_path
915 SCM filename
, exception_on_not_found
;
916 SCM full_filename
, compiled_filename
;
917 int compiled_is_fallback
= 0;
918 SCM hook
= *scm_loc_load_hook
;
919 struct stat stat_source
, stat_compiled
;
921 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
922 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
925 if (scm_is_string (args
))
927 /* C code written for 1.8 and earlier expects this function to take a
928 single argument (the file name). */
930 exception_on_not_found
= SCM_UNDEFINED
;
934 /* Starting from 1.9, this function takes 1 required and 1 optional
938 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
939 if (len
< 1 || len
> 2)
940 scm_error_num_args_subr (FUNC_NAME
);
942 filename
= SCM_CAR (args
);
943 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
945 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
948 if (SCM_UNBNDP (exception_on_not_found
))
949 exception_on_not_found
= SCM_BOOL_T
;
951 full_filename
= search_path (*scm_loc_load_path
, filename
,
952 *scm_loc_load_extensions
, SCM_BOOL_F
,
956 search_path (*scm_loc_load_compiled_path
, filename
,
957 *scm_loc_load_compiled_extensions
, SCM_BOOL_T
,
960 if (scm_is_false (compiled_filename
)
961 && scm_is_true (full_filename
)
962 && scm_is_true (*scm_loc_compile_fallback_path
)
963 && scm_is_false (*scm_loc_fresh_auto_compile
)
964 && scm_is_pair (*scm_loc_load_compiled_extensions
)
965 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
968 char *fallback_chars
;
970 fallback
= scm_string_append
971 (scm_list_3 (*scm_loc_compile_fallback_path
,
972 canonical_suffix (full_filename
),
973 scm_car (*scm_loc_load_compiled_extensions
)));
975 fallback_chars
= scm_to_locale_string (fallback
);
976 if (stat (fallback_chars
, &stat_compiled
) == 0)
978 compiled_filename
= fallback
;
979 compiled_is_fallback
= 1;
981 free (fallback_chars
);
984 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
986 if (scm_is_true (scm_procedure_p (exception_on_not_found
)))
987 return scm_call_0 (exception_on_not_found
);
988 else if (scm_is_false (exception_on_not_found
))
991 SCM_MISC_ERROR ("Unable to find file ~S in load path",
992 scm_list_1 (filename
));
995 if (!scm_is_false (hook
))
996 scm_call_1 (hook
, (scm_is_true (full_filename
)
997 ? full_filename
: compiled_filename
));
999 if (scm_is_false (full_filename
)
1000 || (scm_is_true (compiled_filename
)
1001 && compiled_is_fresh (full_filename
, compiled_filename
,
1002 &stat_source
, &stat_compiled
)))
1003 return scm_load_compiled_with_vm (compiled_filename
);
1005 /* Perhaps there was the installed .go that was stale, but our fallback is
1006 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
1008 if (!compiled_is_fallback
1009 && scm_is_true (*scm_loc_compile_fallback_path
)
1010 && scm_is_false (*scm_loc_fresh_auto_compile
)
1011 && scm_is_pair (*scm_loc_load_compiled_extensions
)
1012 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
1015 char *fallback_chars
;
1018 fallback
= scm_string_append
1019 (scm_list_3 (*scm_loc_compile_fallback_path
,
1020 canonical_suffix (full_filename
),
1021 scm_car (*scm_loc_load_compiled_extensions
)));
1023 fallback_chars
= scm_to_locale_string (fallback
);
1024 stat_ret
= stat (fallback_chars
, &stat_compiled
);
1025 free (fallback_chars
);
1027 if (stat_ret
== 0 && compiled_is_fresh (full_filename
, fallback
,
1028 &stat_source
, &stat_compiled
))
1030 scm_puts_unlocked (";;; found fresh local cache at ", scm_current_warning_port ());
1031 scm_display (fallback
, scm_current_warning_port ());
1032 scm_newline (scm_current_warning_port ());
1033 return scm_load_compiled_with_vm (fallback
);
1037 /* Otherwise, we bottom out here. */
1039 SCM freshly_compiled
= scm_try_auto_compile (full_filename
);
1041 if (scm_is_true (freshly_compiled
))
1042 return scm_load_compiled_with_vm (freshly_compiled
);
1044 return scm_primitive_load (full_filename
);
1050 scm_c_primitive_load_path (const char *filename
)
1052 return scm_primitive_load_path (scm_from_locale_string (filename
));
1056 scm_init_eval_in_scheme (void)
1058 SCM eval_scm
, eval_go
;
1059 struct stat stat_source
, stat_compiled
;
1061 eval_scm
= search_path (*scm_loc_load_path
,
1062 scm_from_locale_string ("ice-9/eval.scm"),
1063 SCM_EOL
, SCM_BOOL_F
, &stat_source
);
1064 eval_go
= search_path (*scm_loc_load_compiled_path
,
1065 scm_from_locale_string ("ice-9/eval.go"),
1066 SCM_EOL
, SCM_BOOL_F
, &stat_compiled
);
1068 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
1069 && compiled_is_fresh (eval_scm
, eval_go
,
1070 &stat_source
, &stat_compiled
))
1071 scm_load_compiled_with_vm (eval_go
);
1073 /* if we have no eval.go, we shouldn't load any compiled code at all */
1074 *scm_loc_load_compiled_path
= SCM_EOL
;
1078 /* Information about the build environment. */
1080 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
1081 scm_from_locale_string (HOST_TYPE
));
1084 /* Initialize the scheme variable %guile-build-info, based on data
1085 provided by the Makefile, via libpath.h. */
1089 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
1090 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
1093 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
1095 SCM key
= scm_from_utf8_symbol (info
[i
].name
);
1096 SCM val
= scm_from_locale_string (info
[i
].value
);
1097 *loc
= scm_acons (key
, val
, *loc
);
1099 #ifdef PACKAGE_PACKAGER
1100 *loc
= scm_acons (scm_from_latin1_symbol ("packager"),
1101 scm_from_latin1_string (PACKAGE_PACKAGER
),
1104 #ifdef PACKAGE_PACKAGER_VERSION
1105 *loc
= scm_acons (scm_from_latin1_symbol ("packager-version"),
1106 scm_from_latin1_string (PACKAGE_PACKAGER_VERSION
),
1109 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
1110 *loc
= scm_acons (scm_from_latin1_symbol ("packager-bug-reports"),
1111 scm_from_latin1_string (PACKAGE_PACKAGER_BUG_REPORTS
),
1120 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
1121 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
1122 scm_loc_load_extensions
1123 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
1124 scm_list_2 (scm_from_locale_string (".scm"),
1126 scm_loc_load_compiled_path
1127 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
1128 scm_loc_load_compiled_extensions
1129 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
1130 scm_list_1 (scm_from_locale_string (".go"))));
1131 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
1133 scm_loc_compile_fallback_path
1134 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
1135 scm_loc_load_should_auto_compile
1136 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-auto-compile", SCM_BOOL_F
));
1137 scm_loc_fresh_auto_compile
1138 = SCM_VARIABLE_LOC (scm_c_define ("%fresh-auto-compile", SCM_BOOL_F
));
1140 scm_ellipsis
= scm_from_latin1_string ("...");
1142 the_reader
= scm_make_fluid_with_default (SCM_BOOL_F
);
1143 scm_c_define("current-reader", the_reader
);
1145 scm_c_define ("load-compiled",
1146 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
1147 scm_load_compiled_with_vm
));
1151 #include "libguile/load.x"
1155 scm_init_load_should_auto_compile ()
1157 char *auto_compile
= getenv ("GUILE_AUTO_COMPILE");
1159 if (auto_compile
&& strcmp (auto_compile
, "0") == 0)
1161 *scm_loc_load_should_auto_compile
= SCM_BOOL_F
;
1162 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;
1164 /* Allow "freshen" also. */
1165 else if (auto_compile
&& strncmp (auto_compile
, "fresh", 5) == 0)
1167 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1168 *scm_loc_fresh_auto_compile
= SCM_BOOL_T
;
1172 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1173 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;