1 /**
2  * @copyright
3  * ====================================================================
4  *    Licensed to the Apache Software Foundation (ASF) under one
5  *    or more contributor license agreements.  See the NOTICE file
6  *    distributed with this work for additional information
7  *    regarding copyright ownership.  The ASF licenses this file
8  *    to you under the Apache License, Version 2.0 (the
9  *    "License"); you may not use this file except in compliance
10  *    with the License.  You may obtain a copy of the License at
11  *
12  *      http://www.apache.org/licenses/LICENSE-2.0
13  *
14  *    Unless required by applicable law or agreed to in writing,
15  *    software distributed under the License is distributed on an
16  *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17  *    KIND, either express or implied.  See the License for the
18  *    specific language governing permissions and limitations
19  *    under the License.
20  * ====================================================================
21  * @endcopyright
22  *
23  * @file svn_types.h
24  * @brief Subversion's data types
25  */
26 
27 #ifndef SVN_TYPES_H
28 #define SVN_TYPES_H
29 
30 #include "svn_types_impl.h"
31 
32 /* ### this should go away, but it causes too much breakage right now */
33 #include <stdlib.h>
34 #include <limits.h> /* for ULONG_MAX */
35 
36 #include <apr.h>         /* for apr_size_t, apr_int64_t, ... */
37 #include <apr_version.h>
38 #include <apr_errno.h>   /* for apr_status_t */
39 #include <apr_pools.h>   /* for apr_pool_t */
40 #include <apr_hash.h>    /* for apr_hash_t */
41 #include <apr_tables.h>  /* for apr_array_push() */
42 #include <apr_time.h>    /* for apr_time_t */
43 #include <apr_strings.h> /* for apr_atoi64() */
44 
45 #ifdef __cplusplus
46 extern "C" {
47 #endif /* __cplusplus */
48 
49 
50 
51 /** Macro used to mark deprecated functions.
52  *
53  * @since New in 1.6.
54  */
55 #ifndef SVN_DEPRECATED
56 # if !defined(SWIGPERL) && !defined(SWIGPYTHON) && !defined(SWIGRUBY)
57 #  if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__==3 && __GNUC_MINOR__>=1))
58 #   define SVN_DEPRECATED __attribute__((deprecated))
59 #  elif defined(_MSC_VER) && _MSC_VER >= 1300
60 #   define SVN_DEPRECATED __declspec(deprecated)
61 #  else
62 #   define SVN_DEPRECATED
63 #  endif
64 # else
65 #  define SVN_DEPRECATED
66 # endif
67 #endif
68 
69 
70 /** Macro used to mark experimental functions.
71  *
72  * @since New in 1.9.
73  */
74 #ifndef SVN_EXPERIMENTAL
75 # if !defined(SWIGPERL) && !defined(SWIGPYTHON) && !defined(SWIGRUBY)
76 #  if defined(__has_attribute)
77 #    if __has_attribute(__warning__)
78 #      define SVN_EXPERIMENTAL __attribute__((warning("experimental function used")))
79 #    else
80 #      define SVN_EXPERIMENTAL
81 #    endif
82 #  elif !defined(__llvm__) && defined(__GNUC__) \
83       && (__GNUC__ >= 4 || (__GNUC__==3 && __GNUC_MINOR__>=1))
84 #   define SVN_EXPERIMENTAL __attribute__((warning("experimental function used")))
85 #  elif defined(_MSC_VER) && _MSC_VER >= 1300
86 #   define SVN_EXPERIMENTAL __declspec(deprecated("experimental function used"))
87 #  else
88 #   define SVN_EXPERIMENTAL
89 #  endif
90 # else
91 #  define SVN_EXPERIMENTAL
92 # endif
93 #endif
94 
95 /** Macro used to mark functions that require a final null sentinel argument.
96  *
97  * @since New in 1.9.
98  */
99 #ifndef SVN_NEEDS_SENTINEL_NULL
100 #  if defined(__has_attribute)
101 #    if __has_attribute(__sentinel__)
102 #      define SVN_NEEDS_SENTINEL_NULL __attribute__((sentinel))
103 #    else
104 #      define SVN_NEEDS_SENTINEL_NULL
105 #    endif
106 #  elif defined(__GNUC__) && (__GNUC__ >= 4)
107 #    define SVN_NEEDS_SENTINEL_NULL __attribute__((sentinel))
108 #  else
109 #    define SVN_NEEDS_SENTINEL_NULL
110 #  endif
111 #endif
112 
113 
114 /** Indicate whether the current platform supports unaligned data access.
115  *
116  * On the majority of machines running SVN (x86 / x64), unaligned access
117  * is much cheaper than repeated aligned access. Define this macro to 1
118  * on those machines.
119  * Unaligned access on other machines (e.g. IA64) will trigger memory
120  * access faults or simply misbehave.
121  *
122  * Note: Some platforms may only support unaligned access for integers
123  * (PowerPC).  As a result this macro should only be used to determine
124  * if unaligned access is supported for integers.
125  *
126  * @since New in 1.7.
127  */
128 #ifndef SVN_UNALIGNED_ACCESS_IS_OK
129 # if defined(_M_IX86) || defined(i386) \
130      || defined(_M_X64) || defined(__x86_64) \
131      || defined(__powerpc__) || defined(__ppc__)
132 #  define SVN_UNALIGNED_ACCESS_IS_OK 1
133 # else
134 #  define SVN_UNALIGNED_ACCESS_IS_OK 0
135 # endif
136 #endif
137 
138 
139 
140 /** YABT:  Yet Another Boolean Type */
141 typedef int svn_boolean_t;
142 
143 #ifndef TRUE
144 /** uhh... true */
145 #define TRUE 1
146 #endif /* TRUE */
147 
148 #ifndef FALSE
149 /** uhh... false */
150 #define FALSE 0
151 #endif /* FALSE */
152 
153 
154 
155 /* Declaration of a unique type, never defined, for the SVN_VA_NULL macro.
156  *
157  * NOTE: Private. Not for direct use by third-party code.
158  */
159 struct svn__null_pointer_constant_stdarg_sentinel_t;
160 
161 /** Null pointer constant used as a sentinel in variable argument lists.
162  *
163  * Use of this macro ensures that the argument is of the correct size when a
164  * pointer is expected. (The macro @c NULL is not defined as a pointer on
165  * all systems, and the arguments to variadic functions are not converted
166  * automatically to the expected type.)
167  *
168  * @since New in 1.9.
169  */
170 #define SVN_VA_NULL ((struct svn__null_pointer_constant_stdarg_sentinel_t*)0)
171 /* See? (char*)NULL -- They have the same length, but the cast looks ugly. */
172 
173 
174 
175 /** Subversion error object.
176  *
177  * Defined here, rather than in svn_error.h, to avoid a recursive @#include
178  * situation.
179  */
180 typedef struct svn_error_t
181 {
182   /** APR error value; possibly an SVN_ custom error code (see
183    * `svn_error_codes.h' for a full listing).
184    */
185   apr_status_t apr_err;
186 
187   /** Details from the producer of error.
188    *
189    * Note that if this error was generated by Subversion's API, you'll
190    * probably want to use svn_err_best_message() to get a single
191    * descriptive string for this error chain (see the @a child member)
192    * or svn_handle_error2() to print the error chain in full.  This is
193    * because Subversion's API functions sometimes add many links to
194    * the error chain that lack details (used only to produce virtual
195    * stack traces).  (Use svn_error_purge_tracing() to remove those
196    * trace-only links from the error chain.)
197    */
198   const char *message;
199 
200   /** Pointer to the error we "wrap" (may be @c NULL).  Via this
201    * member, individual error object can be strung together into an
202    * "error chain".
203    */
204   struct svn_error_t *child;
205 
206   /** The pool in which this error object is allocated.  (If
207    * Subversion's APIs are used to manage error chains, then this pool
208    * will contain the whole error chain of which this object is a
209    * member.) */
210   apr_pool_t *pool;
211 
212   /** Source file where the error originated (iff @c SVN_DEBUG;
213    * undefined otherwise).
214    */
215   const char *file;
216 
217   /** Source line where the error originated (iff @c SVN_DEBUG;
218    * undefined otherwise).
219    */
220   long line;
221 
222 } svn_error_t;
223 
224 
225 
226 /* See svn_version.h.
227    Defined here to avoid including svn_version.h from all public headers. */
228 typedef struct svn_version_t svn_version_t;
229 
230 
231 
232 /** @defgroup APR_ARRAY_compat_macros APR Array Compatibility Helper Macros
233  * These macros are provided by APR itself from version 1.3.
234  * Definitions are provided here for when using older versions of APR.
235  * @{
236  */
237 
238 /** index into an apr_array_header_t */
239 #ifndef APR_ARRAY_IDX
240 #define APR_ARRAY_IDX(ary,i,type) (((type *)(ary)->elts)[i])
241 #endif
242 
243 /** easier array-pushing syntax */
244 #ifndef APR_ARRAY_PUSH
245 #define APR_ARRAY_PUSH(ary,type) (*((type *)apr_array_push(ary)))
246 #endif
247 
248 /** @} */
249 
250 
251 
252 /** @defgroup apr_hash_utilities APR Hash Table Helpers
253  * These functions enable the caller to dereference an APR hash table index
254  * without type casts or temporary variables.
255  *
256  * These functions are provided by APR itself from version 1.5.
257  * Definitions are provided here for when using older versions of APR.
258  * @{
259  */
260 
261 #if !APR_VERSION_AT_LEAST(1, 5, 0)
262 
263 /** Return the key of the hash table entry indexed by @a hi. */
264 const void *
265 apr_hash_this_key(apr_hash_index_t *hi);
266 
267 /** Return the key length of the hash table entry indexed by @a hi. */
268 apr_ssize_t
269 apr_hash_this_key_len(apr_hash_index_t *hi);
270 
271 /** Return the value of the hash table entry indexed by @a hi. */
272 void *
273 apr_hash_this_val(apr_hash_index_t *hi);
274 
275 #endif
276 
277 /** @} */
278 
279 
280 
281 /** On Windows, APR_STATUS_IS_ENOTDIR includes several kinds of
282  * invalid-pathname error but not ERROR_INVALID_NAME, so we include it.
283  * We also include ERROR_DIRECTORY as that was not included in apr versions
284  * before 1.4.0 and this fix is not backported */
285 /* ### These fixes should go into APR. */
286 #ifndef WIN32
287 #define SVN__APR_STATUS_IS_ENOTDIR(s)  APR_STATUS_IS_ENOTDIR(s)
288 #else
289 #define SVN__APR_STATUS_IS_ENOTDIR(s)  (APR_STATUS_IS_ENOTDIR(s) \
290                       || ((s) == APR_OS_START_SYSERR + ERROR_DIRECTORY) \
291                       || ((s) == APR_OS_START_SYSERR + ERROR_INVALID_NAME))
292 #endif
293 
294 /** On Windows, APR_STATUS_IS_EPIPE does not include ERROR_NO_DATA error.
295  * So we include it.*/
296 /* ### These fixes should go into APR. */
297 #ifndef WIN32
298 #define SVN__APR_STATUS_IS_EPIPE(s)  APR_STATUS_IS_EPIPE(s)
299 #else
300 #define SVN__APR_STATUS_IS_EPIPE(s)  (APR_STATUS_IS_EPIPE(s) \
301                       || ((s) == APR_OS_START_SYSERR + ERROR_NO_DATA))
302 #endif
303 
304 /** @} */
305 
306 
307 
308 /* NOTE: svn_node_kind_t is defined in svn_types_impl.h */
309 
310 /** Return a constant string expressing @a kind as an English word, e.g.,
311  * "file", "dir", etc.  The string is not localized, as it may be used for
312  * client<->server communications.  If the kind is not recognized, return
313  * "unknown".
314  *
315  * @since New in 1.6.
316  */
317 const char *
318 svn_node_kind_to_word(svn_node_kind_t kind);
319 
320 /** Return the appropriate node_kind for @a word.  @a word is as
321  * returned from svn_node_kind_to_word().  If @a word does not
322  * represent a recognized kind or is @c NULL, return #svn_node_unknown.
323  *
324  * @since New in 1.6.
325  */
326 svn_node_kind_t
327 svn_node_kind_from_word(const char *word);
328 
329 
330 /* NOTE: svn_tristate_t is defined in svn_types_impl.h */
331 
332 /** Return a constant string "true", "false" or NULL representing the value of
333  * @a tristate.
334  *
335  * @since New in 1.7.
336  */
337 const char *
338 svn_tristate__to_word(svn_tristate_t tristate);
339 
340 /** Return the appropriate tristate for @a word. If @a word is "true", returns
341  * #svn_tristate_true; if @a word is "false", returns #svn_tristate_false,
342  * for all other values (including NULL) returns #svn_tristate_unknown.
343  *
344  * @since New in 1.7.
345  */
346 svn_tristate_t
347 svn_tristate__from_word(const char * word);
348 
349 
350 
351 /** About Special Files in Subversion
352  *
353  * Subversion denotes files that cannot be portably created or
354  * modified as "special" files (svn_node_special).  It stores these
355  * files in the repository as a plain text file with the svn:special
356  * property set.  The file contents contain: a platform-specific type
357  * string, a space character, then any information necessary to create
358  * the file on a supported platform.  For example, if a symbolic link
359  * were being represented, the repository file would have the
360  * following contents:
361  *
362  * "link /path/to/link/target"
363  *
364  * Where 'link' is the identifier string showing that this special
365  * file should be a symbolic link and '/path/to/link/target' is the
366  * destination of the symbolic link.
367  *
368  * Special files are stored in the text-base exactly as they are
369  * stored in the repository.  The platform specific files are created
370  * in the working copy at EOL/keyword translation time using
371  * svn_subst_copy_and_translate2().  If the current platform does not
372  * support a specific special file type, the file is copied into the
373  * working copy as it is seen in the repository.  Because of this,
374  * users of other platforms can still view and modify the special
375  * files, even if they do not have their unique properties.
376  *
377  * New types of special files can be added by:
378  *  1. Implementing a platform-dependent routine to create a uniquely
379  *     named special file and one to read the special file in
380  *     libsvn_subr/io.c.
381  *  2. Creating a new textual name similar to
382  *     SVN_SUBST__SPECIAL_LINK_STR in libsvn_subr/subst.c.
383  *  3. Handling the translation/detranslation case for the new type in
384  *     create_special_file_from_stream and detranslate_special_file, using the
385  *     routines from 1.
386  */
387 
388 
389 
390 /* NOTE: svn_revnum_t and SVN_INVALID_REVNUM are defined in svn_types_impl.h */
391 
392 /** Valid revision numbers begin at 0 */
393 #define SVN_IS_VALID_REVNUM(n) ((n) >= 0)
394 
395 /** Not really invalid...just unimportant -- one day, this can be its
396  * own unique value, for now, just make it the same as
397  * #SVN_INVALID_REVNUM.
398  */
399 #define SVN_IGNORED_REVNUM ((svn_revnum_t) -1)
400 
401 /** Convert NULL-terminated C string @a str to a revision number. */
402 #define SVN_STR_TO_REV(str) ((svn_revnum_t) atol(str))
403 
404 /**
405  * Parse NULL-terminated C string @a str as a revision number and
406  * store its value in @a rev.  If @a endptr is non-NULL, then the
407  * address of the first non-numeric character in @a str is stored in
408  * it.  If there are no digits in @a str, then @a endptr is set (if
409  * non-NULL), and the error #SVN_ERR_REVNUM_PARSE_FAILURE error is
410  * returned.  Negative numbers parsed from @a str are considered
411  * invalid, and result in the same error.
412  *
413  * @since New in 1.5.
414  */
415 svn_error_t *
416 svn_revnum_parse(svn_revnum_t *rev,
417                  const char *str,
418                  const char **endptr);
419 
420 /** Originally intended to be used in printf()-style functions to format
421  * revision numbers.  Deprecated due to incompatibilities with language
422  * translation tools (e.g. gettext).
423  *
424  * New code should use a bare "%ld" format specifier for formatting revision
425  * numbers.
426  *
427  * @deprecated Provided for backward compatibility with the 1.0 API.
428  */
429 #define SVN_REVNUM_T_FMT "ld"
430 
431 
432 
433 /** The size of a file in the Subversion FS. */
434 typedef apr_int64_t svn_filesize_t;
435 
436 /** The 'official' invalid file size constant. */
437 #define SVN_INVALID_FILESIZE ((svn_filesize_t) -1)
438 
439 /** In printf()-style functions, format file sizes using this. */
440 #define SVN_FILESIZE_T_FMT APR_INT64_T_FMT
441 
442 #ifndef DOXYGEN_SHOULD_SKIP_THIS
443 /* Parse a base-10 numeric string into a 64-bit unsigned numeric value. */
444 /* NOTE: Private. For use by Subversion's own code only. See issue #1644. */
445 /* FIXME: APR should supply a function to do this, such as "apr_atoui64". */
446 #define svn__atoui64(X) ((apr_uint64_t) apr_atoi64(X))
447 #endif
448 
449 
450 
451 /** An enum to indicate whether recursion is needed. */
452 enum svn_recurse_kind
453 {
454   svn_nonrecursive = 1,
455   svn_recursive
456 };
457 
458 /* NOTE: svn_depth_t is defined in svn_types_impl.h */
459 
460 /** Return a constant string expressing @a depth as an English word,
461  * e.g., "infinity", "immediates", etc.  The string is not localized,
462  * as it may be used for client<->server communications.
463  *
464  * @since New in 1.5.
465  */
466 const char *
467 svn_depth_to_word(svn_depth_t depth);
468 
469 /** Return the appropriate depth for @a depth_str.  @a word is as
470  * returned from svn_depth_to_word().  If @a depth_str does not
471  * represent a recognized depth, return #svn_depth_unknown.
472  *
473  * @since New in 1.5.
474  */
475 svn_depth_t
476 svn_depth_from_word(const char *word);
477 
478 /** Return #svn_depth_infinity if boolean @a recurse is TRUE, else
479  * return #svn_depth_files.
480  *
481  * @note New code should never need to use this, it is called only
482  * from pre-depth APIs, for compatibility.
483  *
484  * @since New in 1.5.
485  */
486 #define SVN_DEPTH_INFINITY_OR_FILES(recurse) \
487   ((recurse) ? svn_depth_infinity : svn_depth_files)
488 
489 /** Return #svn_depth_infinity if boolean @a recurse is TRUE, else
490  * return #svn_depth_immediates.
491  *
492  * @note New code should never need to use this, it is called only
493  * from pre-depth APIs, for compatibility.
494  *
495  * @since New in 1.5.
496  */
497 #define SVN_DEPTH_INFINITY_OR_IMMEDIATES(recurse) \
498   ((recurse) ? svn_depth_infinity : svn_depth_immediates)
499 
500 /** Return #svn_depth_infinity if boolean @a recurse is TRUE, else
501  * return #svn_depth_empty.
502  *
503  * @note New code should never need to use this, it is called only
504  * from pre-depth APIs, for compatibility.
505  *
506  * @since New in 1.5.
507  */
508 #define SVN_DEPTH_INFINITY_OR_EMPTY(recurse) \
509   ((recurse) ? svn_depth_infinity : svn_depth_empty)
510 
511 /** Return a recursion boolean based on @a depth.
512  *
513  * Although much code has been converted to use depth, some code still
514  * takes a recurse boolean.  In most cases, it makes sense to treat
515  * unknown or infinite depth as recursive, and any other depth as
516  * non-recursive (which in turn usually translates to #svn_depth_files).
517  */
518 #define SVN_DEPTH_IS_RECURSIVE(depth)                              \
519   ((depth) == svn_depth_infinity || (depth) == svn_depth_unknown)
520 
521 
522 
523 /**
524  * It is sometimes convenient to indicate which parts of an #svn_dirent_t
525  * object you are actually interested in, so that calculating and sending
526  * the data corresponding to the other fields can be avoided.  These values
527  * can be used for that purpose.
528  *
529  * @defgroup svn_dirent_fields Dirent fields
530  * @{
531  */
532 
533 /** An indication that you are interested in the @c kind field */
534 #define SVN_DIRENT_KIND        0x00001
535 
536 /** An indication that you are interested in the @c size field */
537 #define SVN_DIRENT_SIZE        0x00002
538 
539 /** An indication that you are interested in the @c has_props field */
540 #define SVN_DIRENT_HAS_PROPS   0x00004
541 
542 /** An indication that you are interested in the @c created_rev field */
543 #define SVN_DIRENT_CREATED_REV 0x00008
544 
545 /** An indication that you are interested in the @c time field */
546 #define SVN_DIRENT_TIME        0x00010
547 
548 /** An indication that you are interested in the @c last_author field */
549 #define SVN_DIRENT_LAST_AUTHOR 0x00020
550 
551 /** A combination of all the dirent fields */
552 #define SVN_DIRENT_ALL ~((apr_uint32_t ) 0)
553 
554 /** @} */
555 
556 /** A general subversion directory entry.
557  *
558  * @note To allow for extending the #svn_dirent_t structure in future
559  * releases, always use svn_dirent_create() to allocate the stucture.
560  *
561  * @since New in 1.6.
562  */
563 typedef struct svn_dirent_t
564 {
565   /** node kind */
566   svn_node_kind_t kind;
567 
568   /** length of file text, otherwise SVN_INVALID_FILESIZE */
569   svn_filesize_t size;
570 
571   /** does the node have props? */
572   svn_boolean_t has_props;
573 
574   /** last rev in which this node changed */
575   svn_revnum_t created_rev;
576 
577   /** time of created_rev (mod-time) */
578   apr_time_t time;
579 
580   /** author of created_rev */
581   const char *last_author;
582 
583   /* IMPORTANT: If you extend this struct, check svn_dirent_dup(). */
584 } svn_dirent_t;
585 
586 /** Return a deep copy of @a dirent, allocated in @a pool.
587  *
588  * @since New in 1.4.
589  */
590 svn_dirent_t *
591 svn_dirent_dup(const svn_dirent_t *dirent,
592                apr_pool_t *pool);
593 
594 /**
595  * Create a new svn_dirent_t instance with all values initialized to their
596  * not-available values.
597  *
598  * @since New in 1.8.
599  */
600 svn_dirent_t *
601 svn_dirent_create(apr_pool_t *result_pool);
602 
603 
604 /** Keyword substitution.
605  *
606  * All the keywords Subversion recognizes.
607  *
608  * Note that there is a better, more general proposal out there, which
609  * would take care of both internationalization issues and custom
610  * keywords (e.g., $NetBSD$).  See
611  *
612  * @verbatim
613       http://subversion.tigris.org/servlets/ReadMsg?list=dev&msgNo=8921
614       =====
615       From: "Jonathan M. Manning" <jmanning@alisa-jon.net>
616       To: dev@subversion.tigris.org
617       Date: Fri, 14 Dec 2001 11:56:54 -0500
618       Message-ID: <87970000.1008349014@bdldevel.bl.bdx.com>
619       Subject: Re: keywords @endverbatim
620  *
621  * and Eric Gillespie's support of same:
622  *
623  * @verbatim
624       http://subversion.tigris.org/servlets/ReadMsg?list=dev&msgNo=8757
625       =====
626       From: "Eric Gillespie, Jr." <epg@pretzelnet.org>
627       To: dev@subversion.tigris.org
628       Date: Wed, 12 Dec 2001 09:48:42 -0500
629       Message-ID: <87k7vsebp1.fsf@vger.pretzelnet.org>
630       Subject: Re: Customizable Keywords @endverbatim
631  *
632  * However, it is considerably more complex than the scheme below.
633  * For now we're going with simplicity, hopefully the more general
634  * solution can be done post-1.0.
635  *
636  * @defgroup svn_types_keywords Keyword definitions
637  * @{
638  */
639 
640 /** The maximum size of an expanded or un-expanded keyword. */
641 #define SVN_KEYWORD_MAX_LEN    255
642 
643 /** The most recent revision in which this file was changed. */
644 #define SVN_KEYWORD_REVISION_LONG    "LastChangedRevision"
645 
646 /** Short version of LastChangedRevision */
647 #define SVN_KEYWORD_REVISION_SHORT   "Rev"
648 
649 /** Medium version of LastChangedRevision, matching the one CVS uses.
650  * @since New in 1.1. */
651 #define SVN_KEYWORD_REVISION_MEDIUM  "Revision"
652 
653 /** The most recent date (repository time) when this file was changed. */
654 #define SVN_KEYWORD_DATE_LONG        "LastChangedDate"
655 
656 /** Short version of LastChangedDate */
657 #define SVN_KEYWORD_DATE_SHORT       "Date"
658 
659 /** Who most recently committed to this file. */
660 #define SVN_KEYWORD_AUTHOR_LONG      "LastChangedBy"
661 
662 /** Short version of LastChangedBy */
663 #define SVN_KEYWORD_AUTHOR_SHORT     "Author"
664 
665 /** The URL for the head revision of this file. */
666 #define SVN_KEYWORD_URL_LONG         "HeadURL"
667 
668 /** Short version of HeadURL */
669 #define SVN_KEYWORD_URL_SHORT        "URL"
670 
671 /** A compressed combination of the other four keywords. */
672 #define SVN_KEYWORD_ID               "Id"
673 
674 /** A full combination of the first four keywords.
675  * @since New in 1.6. */
676 #define SVN_KEYWORD_HEADER           "Header"
677 
678 /** @} */
679 
680 
681 
682 /** All information about a commit.
683  *
684  * @note Objects of this type should always be created using the
685  * svn_create_commit_info() function.
686  *
687  * @since New in 1.3.
688  */
689 typedef struct svn_commit_info_t
690 {
691   /** just-committed revision. */
692   svn_revnum_t revision;
693 
694   /** server-side date of the commit. */
695   const char *date;
696 
697   /** author of the commit. */
698   const char *author;
699 
700   /** error message from post-commit hook, or NULL. */
701   const char *post_commit_err;
702 
703   /** repository root, may be @c NULL if unknown.
704       @since New in 1.7. */
705   const char *repos_root;
706 
707 } svn_commit_info_t;
708 
709 /**
710  * Allocate an object of type #svn_commit_info_t in @a pool and
711  * return it.
712  *
713  * The @c revision field of the new struct is set to #SVN_INVALID_REVNUM.
714  * All other fields are initialized to @c NULL.
715  *
716  * @note Any object of the type #svn_commit_info_t should
717  * be created using this function.
718  * This is to provide for extending the svn_commit_info_t in
719  * the future.
720  *
721  * @since New in 1.3.
722  */
723 svn_commit_info_t *
724 svn_create_commit_info(apr_pool_t *pool);
725 
726 /**
727  * Return a deep copy @a src_commit_info allocated in @a pool.
728  *
729  * @since New in 1.4.
730  */
731 svn_commit_info_t *
732 svn_commit_info_dup(const svn_commit_info_t *src_commit_info,
733                     apr_pool_t *pool);
734 
735 
736 
737 /**
738  * A structure to represent a path that changed for a log entry.
739  *
740  * @note To allow for extending the #svn_log_changed_path2_t structure in
741  * future releases, always use svn_log_changed_path2_create() to allocate
742  * the structure.
743  *
744  * @since New in 1.6.
745  */
746 typedef struct svn_log_changed_path2_t
747 {
748   /** 'A'dd, 'D'elete, 'R'eplace, 'M'odify */
749   char action;
750 
751   /** Source path of copy (if any). */
752   const char *copyfrom_path;
753 
754   /** Source revision of copy (if any). */
755   svn_revnum_t copyfrom_rev;
756 
757   /** The type of the node, may be svn_node_unknown. */
758   svn_node_kind_t node_kind;
759 
760   /** Is the text modified, may be svn_tristate_unknown.
761    * @since New in 1.7. */
762   svn_tristate_t text_modified;
763 
764   /** Are properties modified, may be svn_tristate_unknown.
765    * @since New in 1.7. */
766   svn_tristate_t props_modified;
767 
768   /* NOTE: Add new fields at the end to preserve binary compatibility.
769      Also, if you add fields here, you have to update
770      svn_log_changed_path2_dup(). */
771 } svn_log_changed_path2_t;
772 
773 /**
774  * Returns an #svn_log_changed_path2_t, allocated in @a pool with all fields
775  * initialized to NULL, None or empty values.
776  *
777  * @note To allow for extending the #svn_log_changed_path2_t structure in
778  * future releases, this function should always be used to allocate the
779  * structure.
780  *
781  * @since New in 1.6.
782  */
783 svn_log_changed_path2_t *
784 svn_log_changed_path2_create(apr_pool_t *pool);
785 
786 /**
787  * Return a deep copy of @a changed_path, allocated in @a pool.
788  *
789  * @since New in 1.6.
790  */
791 svn_log_changed_path2_t *
792 svn_log_changed_path2_dup(const svn_log_changed_path2_t *changed_path,
793                           apr_pool_t *pool);
794 
795 /**
796  * A structure to represent a path that changed for a log entry.  Same as
797  * the first three fields of #svn_log_changed_path2_t.
798  *
799  * @deprecated Provided for backward compatibility with the 1.5 API.
800  */
801 typedef struct svn_log_changed_path_t
802 {
803   /** 'A'dd, 'D'elete, 'R'eplace, 'M'odify */
804   char action;
805 
806   /** Source path of copy (if any). */
807   const char *copyfrom_path;
808 
809   /** Source revision of copy (if any). */
810   svn_revnum_t copyfrom_rev;
811 
812 } svn_log_changed_path_t;
813 
814 /**
815  * Return a deep copy of @a changed_path, allocated in @a pool.
816  *
817  * @since New in 1.3.
818  * @deprecated Provided for backward compatibility with the 1.5 API.
819  */
820 SVN_DEPRECATED
821 svn_log_changed_path_t *
822 svn_log_changed_path_dup(const svn_log_changed_path_t *changed_path,
823                          apr_pool_t *pool);
824 
825 /**
826  * A structure to represent all the information about a particular log entry.
827  *
828  * @note To allow for extending the #svn_log_entry_t structure in future
829  * releases, always use svn_log_entry_create() to allocate the structure.
830  *
831  * @since New in 1.5.
832  */
833 typedef struct svn_log_entry_t
834 {
835   /** A hash containing as keys every path committed in @a revision; the
836    * values are (#svn_log_changed_path_t *) structures.
837    *
838    * The subversion core libraries will always set this field to the same
839    * value as changed_paths2 for compatibility reasons.
840    *
841    * @deprecated Provided for backward compatibility with the 1.5 API.
842    */
843   apr_hash_t *changed_paths;
844 
845   /** The revision of the commit. */
846   svn_revnum_t revision;
847 
848   /** The hash of requested revision properties, which may be NULL if it
849    * would contain no revprops.  Maps (const char *) property name to
850    * (svn_string_t *) property value. */
851   apr_hash_t *revprops;
852 
853   /**
854    * Whether or not this message has children.
855    *
856    * When a log operation requests additional merge information, extra log
857    * entries may be returned as a result of this entry.  The new entries, are
858    * considered children of the original entry, and will follow it.  When
859    * the HAS_CHILDREN flag is set, the receiver should increment its stack
860    * depth, and wait until an entry is provided with SVN_INVALID_REVNUM which
861    * indicates the end of the children.
862    *
863    * For log operations which do not request additional merge information, the
864    * HAS_CHILDREN flag is always FALSE.
865    *
866    * For more information see:
867    * https://svn.apache.org/repos/asf/subversion/trunk/notes/merge-tracking/design.html#commutative-reporting
868    */
869   svn_boolean_t has_children;
870 
871   /** A hash containing as keys every path committed in @a revision; the
872    * values are (#svn_log_changed_path2_t *) structures.
873    *
874    * If this value is not @c NULL, it MUST have the same value as
875    * changed_paths or svn_log_entry_dup() will not create an identical copy.
876    *
877    * The subversion core libraries will always set this field to the same
878    * value as changed_paths for compatibility with users assuming an older
879    * version.
880    *
881    * @note See http://svn.haxx.se/dev/archive-2010-08/0362.shtml for
882    * further explanation.
883    *
884    * @since New in 1.6.
885    */
886   apr_hash_t *changed_paths2;
887 
888   /**
889    * Whether @a revision should be interpreted as non-inheritable in the
890    * same sense of #svn_merge_range_t.
891    *
892    * Only set when this #svn_log_entry_t instance is returned by the
893    * libsvn_client mergeinfo apis. Currently always FALSE when the
894    * #svn_log_entry_t instance is reported by the ra layer.
895    *
896    * @since New in 1.7.
897    */
898   svn_boolean_t non_inheritable;
899 
900   /**
901    * Whether @a revision is a merged revision resulting from a reverse merge.
902    *
903    * @since New in 1.7.
904    */
905   svn_boolean_t subtractive_merge;
906 
907   /* NOTE: Add new fields at the end to preserve binary compatibility.
908      Also, if you add fields here, you have to update
909      svn_log_entry_dup(). */
910 } svn_log_entry_t;
911 
912 /**
913  * Returns an #svn_log_entry_t, allocated in @a pool with all fields
914  * initialized to NULL values.
915  *
916  * @note To allow for extending the #svn_log_entry_t structure in future
917  * releases, this function should always be used to allocate the structure.
918  *
919  * @since New in 1.5.
920  */
921 svn_log_entry_t *
922 svn_log_entry_create(apr_pool_t *pool);
923 
924 /** Return a deep copy of @a log_entry, allocated in @a pool.
925  *
926  * The resulting svn_log_entry_t has @c changed_paths set to the same
927  * value as @c changed_path2. @c changed_paths will be @c NULL if
928  * @c changed_paths2 was @c NULL.
929  *
930  * @since New in 1.6.
931  */
932 svn_log_entry_t *
933 svn_log_entry_dup(const svn_log_entry_t *log_entry, apr_pool_t *pool);
934 
935 /** The callback invoked by log message loopers, such as
936  * #svn_ra_plugin_t.get_log() and svn_repos_get_logs().
937  *
938  * This function is invoked once on each log message, in the order
939  * determined by the caller (see above-mentioned functions).
940  *
941  * @a baton is what you think it is, and @a log_entry contains relevant
942  * information for the log message.  Any of @a log_entry->author,
943  * @a log_entry->date, or @a log_entry->message may be @c NULL.
944  *
945  * If @a log_entry->date is neither NULL nor the empty string, it was
946  * generated by svn_time_to_cstring() and can be converted to
947  * @c apr_time_t with svn_time_from_cstring().
948  *
949  * If @a log_entry->changed_paths is non-@c NULL, then it contains as keys
950  * every path committed in @a log_entry->revision; the values are
951  * (#svn_log_changed_path_t *) structures.
952  *
953  * If @a log_entry->has_children is @c TRUE, the message will be followed
954  * immediately by any number of merged revisions (child messages), which are
955  * terminated by an invocation with SVN_INVALID_REVNUM.  This usage may
956  * be recursive.
957  *
958  * Use @a pool for temporary allocation.  If the caller is iterating
959  * over log messages, invoking this receiver on each, we recommend the
960  * standard pool loop recipe: create a subpool, pass it as @a pool to
961  * each call, clear it after each iteration, destroy it after the loop
962  * is done.  (For allocation that must last beyond the lifetime of a
963  * given receiver call, use a pool in @a baton.)
964  *
965  * @since New in 1.5.
966  */
967 typedef svn_error_t *(*svn_log_entry_receiver_t)(
968   void *baton,
969   svn_log_entry_t *log_entry,
970   apr_pool_t *pool);
971 
972 /**
973  * Similar to #svn_log_entry_receiver_t, except this uses separate
974  * parameters for each part of the log entry.
975  *
976  * @deprecated Provided for backward compatibility with the 1.4 API.
977  */
978 typedef svn_error_t *(*svn_log_message_receiver_t)(
979   void *baton,
980   apr_hash_t *changed_paths,
981   svn_revnum_t revision,
982   const char *author,
983   const char *date,  /* use svn_time_from_cstring() if need apr_time_t */
984   const char *message,
985   apr_pool_t *pool);
986 
987 
988 /** Callback function type for commits.
989  *
990  * When a commit succeeds, an instance of this is invoked with the
991  * @a commit_info, along with the @a baton closure.
992  * @a pool can be used for temporary allocations.
993  *
994  * @note Implementers of this callback that pass this callback to
995  * svn_ra_get_commit_editor3() should be careful with returning errors
996  * as these might be returned as commit errors. See the documentation
997  * of svn_ra_get_commit_editor3() for more details.
998  *
999  * @since New in 1.4.
1000  */
1001 typedef svn_error_t *(*svn_commit_callback2_t)(
1002   const svn_commit_info_t *commit_info,
1003   void *baton,
1004   apr_pool_t *pool);
1005 
1006 /** Same as #svn_commit_callback2_t, but uses individual
1007  * data elements instead of the #svn_commit_info_t structure
1008  *
1009  * @deprecated Provided for backward compatibility with the 1.3 API.
1010  */
1011 typedef svn_error_t *(*svn_commit_callback_t)(
1012   svn_revnum_t new_revision,
1013   const char *date,
1014   const char *author,
1015   void *baton);
1016 
1017 
1018 
1019 /** A buffer size that may be used when processing a stream of data.
1020  *
1021  * @note We don't use this constant any longer, since it is considered to be
1022  * unnecessarily large.
1023  *
1024  * @deprecated Provided for backwards compatibility with the 1.3 API.
1025  */
1026 #define SVN_STREAM_CHUNK_SIZE 102400
1027 
1028 #ifndef DOXYGEN_SHOULD_SKIP_THIS
1029 /*
1030  * The maximum amount we (ideally) hold in memory at a time when
1031  * processing a stream of data.
1032  *
1033  * For example, when copying data from one stream to another, do it in
1034  * blocks of this size.
1035  *
1036  * NOTE: This is an internal macro, put here for convenience.
1037  * No public API may depend on the particular value of this macro.
1038  */
1039 #define SVN__STREAM_CHUNK_SIZE 16384
1040 #endif
1041 
1042 /** The maximum amount we can ever hold in memory. */
1043 /* FIXME: Should this be the same as SVN_STREAM_CHUNK_SIZE? */
1044 #define SVN_MAX_OBJECT_SIZE (((apr_size_t) -1) / 2)
1045 
1046 
1047 
1048 /* ### Note: despite being about mime-TYPES, these probably don't
1049  * ### belong in svn_types.h.  However, no other header is more
1050  * ### appropriate, and didn't feel like creating svn_validate.h for
1051  * ### so little.
1052  */
1053 
1054 /** Validate @a mime_type.
1055  *
1056  * If @a mime_type does not contain a "/", or ends with non-alphanumeric
1057  * data, return #SVN_ERR_BAD_MIME_TYPE, else return success.
1058  *
1059  * Use @a pool only to find error allocation.
1060  *
1061  * Goal: to match both "foo/bar" and "foo/bar; charset=blah", without
1062  * being too strict about it, but to disallow mime types that have
1063  * quotes, newlines, or other garbage on the end, such as might be
1064  * unsafe in an HTTP header.
1065  */
1066 svn_error_t *
1067 svn_mime_type_validate(const char *mime_type,
1068                        apr_pool_t *pool);
1069 
1070 /** Return FALSE iff @a mime_type is a textual type.
1071  *
1072  * All mime types that start with "text/" are textual, plus some special
1073  * cases (for example, "image/x-xbitmap").
1074  */
1075 svn_boolean_t
1076 svn_mime_type_is_binary(const char *mime_type);
1077 
1078 
1079 
1080 /** A user defined callback that subversion will call with a user defined
1081  * baton to see if the current operation should be continued.  If the operation
1082  * should continue, the function should return #SVN_NO_ERROR, if not, it
1083  * should return #SVN_ERR_CANCELLED.
1084  */
1085 typedef svn_error_t *(*svn_cancel_func_t)(void *cancel_baton);
1086 
1087 
1088 
1089 /**
1090  * A lock object, for client & server to share.
1091  *
1092  * A lock represents the exclusive right to add, delete, or modify a
1093  * path.  A lock is created in a repository, wholly controlled by the
1094  * repository.  A "lock-token" is the lock's UUID, and can be used to
1095  * learn more about a lock's fields, and or/make use of the lock.
1096  * Because a lock is immutable, a client is free to not only cache the
1097  * lock-token, but the lock's fields too, for convenience.
1098  *
1099  * Note that the 'is_dav_comment' field is wholly ignored by every
1100  * library except for mod_dav_svn.  The field isn't even marshalled
1101  * over the network to the client.  Assuming lock structures are
1102  * created with apr_pcalloc(), a default value of 0 is universally safe.
1103  *
1104  * @note in the current implementation, only files are lockable.
1105  *
1106  * @since New in 1.2.
1107  */
1108 typedef struct svn_lock_t
1109 {
1110   const char *path;              /**< the path this lock applies to */
1111   const char *token;             /**< unique URI representing lock */
1112   const char *owner;             /**< the username which owns the lock */
1113   const char *comment;           /**< (optional) description of lock  */
1114   svn_boolean_t is_dav_comment;  /**< was comment made by generic DAV client? */
1115   apr_time_t creation_date;      /**< when lock was made */
1116   apr_time_t expiration_date;    /**< (optional) when lock will expire;
1117                                       If value is 0, lock will never expire. */
1118 } svn_lock_t;
1119 
1120 /**
1121  * Returns an #svn_lock_t, allocated in @a pool with all fields initialized
1122  * to NULL values.
1123  *
1124  * @note To allow for extending the #svn_lock_t structure in the future
1125  * releases, this function should always be used to allocate the structure.
1126  *
1127  * @since New in 1.2.
1128  */
1129 svn_lock_t *
1130 svn_lock_create(apr_pool_t *pool);
1131 
1132 /**
1133  * Return a deep copy of @a lock, allocated in @a pool.
1134  *
1135  * @since New in 1.2.
1136  */
1137 svn_lock_t *
1138 svn_lock_dup(const svn_lock_t *lock, apr_pool_t *pool);
1139 
1140 
1141 
1142 /**
1143  * Return a formatted Universal Unique IDentifier (UUID) string.
1144  *
1145  * @since New in 1.4.
1146  */
1147 const char *
1148 svn_uuid_generate(apr_pool_t *pool);
1149 
1150 
1151 
1152 /**
1153  * Mergeinfo representing a merge of a range of revisions.
1154  *
1155  * @since New in 1.5
1156  */
1157 typedef struct svn_merge_range_t
1158 {
1159   /**
1160    * If the 'start' field is less than the 'end' field then 'start' is
1161    * exclusive and 'end' inclusive of the range described.  This is termed
1162    * a forward merge range.  If 'start' is greater than 'end' then the
1163    * opposite is true.  This is termed a reverse merge range.  If 'start'
1164    * equals 'end' the meaning of the range is not defined.
1165    */
1166   svn_revnum_t start;
1167   svn_revnum_t end;
1168 
1169   /**
1170    * Whether this merge range should be inherited by treewise
1171    * descendants of the path to which the range applies. */
1172   svn_boolean_t inheritable;
1173 } svn_merge_range_t;
1174 
1175 /**
1176  * Return a copy of @a range, allocated in @a pool.
1177  *
1178  * @since New in 1.5.
1179  */
1180 svn_merge_range_t *
1181 svn_merge_range_dup(const svn_merge_range_t *range, apr_pool_t *pool);
1182 
1183 /**
1184  * Returns true if the changeset committed in revision @a rev is one
1185  * of the changesets in the range @a range.
1186  *
1187  * @since New in 1.5.
1188  */
1189 svn_boolean_t
1190 svn_merge_range_contains_rev(const svn_merge_range_t *range, svn_revnum_t rev);
1191 
1192 
1193 
1194 /** @defgroup node_location_seg_reporting Node location segment reporting.
1195  *  @{ */
1196 
1197 /**
1198  * A representation of a segment of an object's version history with an
1199  * emphasis on the object's location in the repository as of various
1200  * revisions.
1201  *
1202  * @since New in 1.5.
1203  */
1204 typedef struct svn_location_segment_t
1205 {
1206   /** The beginning (oldest) and ending (youngest) revisions for this
1207       segment, both inclusive. */
1208   svn_revnum_t range_start;
1209   svn_revnum_t range_end;
1210 
1211   /** The absolute (sans leading slash) path for this segment.  May be
1212       NULL to indicate gaps in an object's history.  */
1213   const char *path;
1214 
1215 } svn_location_segment_t;
1216 
1217 /**
1218  * A callback invoked by generators of #svn_location_segment_t
1219  * objects, used to report information about a versioned object's
1220  * history in terms of its location in the repository filesystem over
1221  * time.
1222  */
1223 typedef svn_error_t *(*svn_location_segment_receiver_t)(
1224   svn_location_segment_t *segment,
1225   void *baton,
1226   apr_pool_t *pool);
1227 
1228 /**
1229  * Return a deep copy of @a segment, allocated in @a pool.
1230  *
1231  * @since New in 1.5.
1232  */
1233 svn_location_segment_t *
1234 svn_location_segment_dup(const svn_location_segment_t *segment,
1235                          apr_pool_t *pool);
1236 
1237 /** @} */
1238 
1239 
1240 
1241 /** A line number, such as in a file or a stream.
1242  *
1243  * @since New in 1.7.
1244  */
1245 typedef unsigned long svn_linenum_t;
1246 
1247 /** The maximum value of an svn_linenum_t.
1248  *
1249  * @since New in 1.7.
1250  */
1251 #define SVN_LINENUM_MAX_VALUE ULONG_MAX
1252 
1253 
1254 
1255 #ifdef __cplusplus
1256 }
1257 #endif /* __cplusplus */
1258 
1259 
1260 /*
1261  * Everybody and their brother needs to deal with svn_error_t, the error
1262  * codes, and whatever else. While they *should* go and include svn_error.h
1263  * in order to do that... bah. Let's just help everybody out and include
1264  * that header whenever somebody grabs svn_types.h.
1265  *
1266  * Note that we do this at the END of this header so that its contents
1267  * are available to svn_error.h (our guards will prevent the circular
1268  * include). We also need to do the include *outside* of the cplusplus
1269  * guard.
1270  */
1271 #include "svn_error.h"
1272 
1273 
1274 /*
1275  * Subversion developers may want to use some additional debugging facilities
1276  * while working on the code. We'll pull that in here, so individual source
1277  * files don't have to include this header manually.
1278  */
1279 #ifdef SVN_DEBUG
1280 #include "private/svn_debug.h"
1281 #endif
1282 
1283 
1284 #endif /* SVN_TYPES_H */
1285