1native::Core(3)       User Contributed Perl Documentation      native::Core(3)
2
3
4

NAME

6       SVN::Core - Core module of the subversion perl bindings
7

SYNOPSIS

9           use SVN::Core; # does apr_initialize and cleanup for you
10
11           # create a root pool and set it as default pool for later use
12           my $pool = SVN::Pool->new_default;
13
14           sub something {
15               # create a subpool of the current default pool
16               my $pool = SVN::Pool->new_default_sub;
17               # some svn operations...
18
19               # $pool gets destroyed and the previous default pool
20               # is restored when $pool's lexical scope ends
21           }
22
23           # svn_stream_t as native perl io handle
24           my $stream = $txn->root->apply_text('trunk/filea', undef);
25           print $stream $text;
26           close $stream;
27
28           # native perl io handle as svn_stream_t
29           SVN::Repos::dump_fs($repos, \*STDOUT, \*STDERR,
30                               0, $repos->fs->youngest_rev, 0);
31

DESCRIPTION

33       SVN::Core implements higher level functions of fundamental subversion
34       functions.
35

FUNCTIONS

37       SVN::Core::auth_open([auth provider array]);
38           Takes a reference to an array of authentication providers and
39           returns an auth_baton.  If you use prompt providers you can not use
40           this function, but need to use the auth_open_helper.
41
42       SVN::Core::auth_open_helper([auth provider array]);
43           Prompt providers return two values instead of one.  The 2nd
44           parameter is a reference to whatever was passed into them as the
45           callback.  auth_open_helper splits up these arguments, passing the
46           provider objects into auth_open which gives it an auth_baton and
47           putting the other ones in an array.  The first return value of this
48           function is the auth_baton, the second is a reference to an array
49           containing the references to the callbacks.
50
51           These callback arrays should be stored in the object the auth_baton
52           is attached to.
53

OTHER OBJECTS

55   svn_stream_t - SVN::Stream
56       You can use native perl io handles (including io globs) as svn_stream_t
57       in subversion functions. Returned svn_stream_t are also translated into
58       perl io handles, so you could access them with regular print, read,
59       etc.
60
61       Note that some functions take a stream to read from or write to, but do
62       not close the stream while still holding the reference to the io
63       handle.  In this case the handle won't be destroyed properly.  You
64       should always set up the correct default pool before calling such
65       functions.
66
67   svn_pool_t - SVN::Pool
68       The perl bindings significantly simplify the usage of pools, while
69       still being manually adjustable.
70
71       For functions requiring a pool as the last argument (which are, almost
72       all of the subversion functions), the pool argument is optional. The
73       default pool is used if it is omitted. When "SVN::Core" is loaded, it
74       creates a new default pool, which is also available from
75       "SVN::Core->gpool".
76
77       For callback functions providing a pool to your subroutine, you could
78       also use $pool->default to make it the default pool in the scope.
79
80       Methods
81
82       new([$parent])
83           Create a new pool. The pool is a root pool if $parent is not
84           supplied.
85
86       new_default([$parent])
87           Create a new pool. The pool is a root pool if $parent is not
88           supplied.  Set the new pool as default pool.
89
90       new_default_sub
91           Create a new subpool of the current default pool, and set the
92           resulting pool as new default pool.
93
94       clear
95           Clear the pool.
96
97       DESTROY
98           Destroy the pool. If the pool was the default pool, restore the
99           previous default pool. This is normally called automatically when
100           the SVN::Pool object is no longer used and destroyed by the perl
101           garbage collector.
102
103   svn_error_t - SVN::Error
104       By default the perl bindings handle exceptions for you.  The default
105       handler automatically croaks with an appropriate error message.  This
106       is likely sufficient for simple scripts, but more complex usage may
107       demand handling of errors.
108
109       You can override the default exception handler by changing the
110       $SVN::Error::handler variable.  This variable holds a reference to a
111       perl sub that should be called whenever an error is returned by a svn
112       function.  This sub will be passed a svn_error_t object.   Its return
113       value is ignored.
114
115       If you set the $SVN::Error::handler to undef then each call will return
116       an svn_error_t object as its first return in the case of an error,
117       followed by the normal return values.  If there is no error then a
118       svn_error_t will not be returned and only the normal return values will
119       be returned.  When using this mode you should be careful only to call
120       functions in array context.  For example: my ($ci) =
121       $ctx->mkdir('http://svn/foo');  In this case $ci will be an svn_error_t
122       object if an error occurs and a svn_client_commit_info object
123       otherwise.  If you leave the parenthesis off around $ci (scalar
124       context) it will be the commit_info object, which in the case of an
125       error will be undef.
126
127       If you plan on using explicit exception handling, understanding the
128       exception handling system the C API uses is helpful.  You can find
129       information on it in the HACKING file and the API documentation.
130       Looking at the implementation of SVN::Error::croak_on_error and
131       SVN::Error::expanded_message may be helpful as well.
132
133       $svn_error_t->apr_err()
134           APR error value, possibly SVN_ custom error.
135
136       $svn_error_t->message()
137           Details from producer of error.
138
139       $svn_error_t->child()
140           svn_error_t object of the error that's wrapped.
141
142       $svn_error_t->pool()
143           The pool holding this error and any child errors it wraps.
144
145       $svn_error_t->file()
146           Source file where the error originated.
147
148       $svn_error_t->line()
149           Source line where the error originated.
150
151       SVN::Error::strerror($apr_status_t)
152           Returns the english description of the status code.
153
154       $svn_error_t->strerror()
155           Returns the english description of the apr_err status code set on
156           the $svn_error_t.  This is short for:
157           SVN::Error::strerror($svn_error_t->apr_err());
158
159       SVN::Error::create($apr_err, $child, $message);
160           Returns a new svn_error_t object with the error status specified in
161           $apr_err, the child as $child, and error message of $message.
162
163       SVN::Error::quick_wrap($child, $new_msg); or
164       $child->quick_wrap($new_msg);
165           A quick n' easy way to create a wrappered exception with your own
166           message before throwing it up the stack.
167
168           $child is the svn_error_t object you want to wrap and $new_msg is
169           the new error string you want to set.
170
171       SVN::Error::compose($chain, $new_error); or
172       $chain->compose($new_error);
173           Add new_err to the end of $chain's chain of errors.
174
175           The $new_err chain will be copied into $chain's pool and destroyed,
176           so $new_err itself becomes invalid after this function.
177
178       SVN::Error::clear($svn_error_t); or $svn_error_t->clear();
179           Free the memory used by $svn_error_t, as well as all ancestors and
180           descendants of $svn_error_t.
181
182           You must call this on every svn_error_t object you get or you will
183           leak memory.
184
185       SVN::Error::expanded_message($svn_error_t) or
186       $svn_error_t->expanded_message()
187           Returns the error message by tracing through the svn_error_t object
188           and its children and concatenating the error messages.  This is how
189           the internal exception handlers get their error messages.
190
191       SVN::Error::is_error($value)
192           Returns true if value is of type svn_error.  Returns false if value
193           is anything else or undefined.  This is useful for seeing if a call
194           has returned an error.
195
196       SVN::Error::croak_on_error
197           Default error handler.  It takes an svn_error_t and extracts the
198           error messages from it and croaks with those messages.
199
200           It can be used in two ways.  The first is detailed above as setting
201           it as the automatic exception handler via setting
202           $SVN::Error::handler.
203
204           The second is if you have $SVN::Error::handler set to undef as a
205           wrapper for calls you want to croak on when there is an error, but
206           you don't want to write an explicit error handler. For example:
207
208           my $rev =
209           SVN::Error::croak_on_error($ctx->checkout($url,$path,'HEAD',1));
210
211           If there is no error then croak_on_error will return the arguments
212           passed to it unchanged.
213
214       SVN::Error::confess_on_error
215           The same as croak_on_error except it will give a more detailed
216           stack backtrace, including internal calls within the implementation
217           of the perl bindings.  This is useful when you are doing
218           development work on the bindings themselves.
219
220       SVN::Error::ignore_error
221           This is useful for wrapping around calls which you wish to ignore
222           any potential error.  It checks to see if the first parameter is an
223           error and if it is it clears it.  It then returns all the other
224           parameters.
225
226   svn_log_changed_path_t
227       $lcp->action()
228           'A'dd, 'D'elete, 'R'eplace, 'M'odify
229
230       $lcp->copyfrom_path()
231           Source path of copy, or "undef" if there isn't any previous
232           revision history.
233
234       $lcp->copyfrom_rev()
235           Source revision of copy, or $SVN::Core::INVALID_REVNUM if there is
236           no previous history.
237
238   svn_log_changed_path2_t
239       An object to represent a path that changed for a log entry.
240
241       $lcp->action()
242           'A'dd, 'D'elete, 'R'eplace, 'M'odify
243
244       $lcp->copyfrom_path()
245           Source path of copy, or "undef" if there isn't any previous
246           revision history.
247
248       $lcp->copyfrom_rev()
249           Source revision of copy, or $SVN::Core::INVALID_REVNUM if there is
250           no previous history.
251
252       $lcp->node_kind()
253           The type of the node, a $SVN::Node enum; may be
254           $SVN::Node::unknown.
255
256       $lcp->text_modified()
257           Is the text modified, a "SVN::Tristate" enum, may be
258           $SVN::Tristate::unknown.
259
260       $lcp->props_modified()
261           Are properties modified, a "SVN::Tristate" enum, may be
262           $SVN::Tristate::unknown.
263
264   svn_node_kind_t - SVN::Node
265       An enum of the following constants:
266
267       $SVN::Node::none, $SVN::Node::file, $SVN::Node::dir,
268       $SVN::Node::unknown.
269
270   svn_tristate_t - SVN::Tristate
271       An enum of the following constants:
272
273       $SVN::Tristate::true, $SVN::Tristate::false, $SVN::Tristate::unknown
274
275       Note that these true/false values have nothing to do with Perl's
276       concept of truth. In fact, each constant would evaluate to true in a
277       boolean context.
278
279   svn_depth_t - SVN::Depth
280       An enum of the following constants:
281
282       $SVN::Depth::unknown
283           Depth undetermined or ignored.  In some contexts, this means the
284           client should choose an appropriate default depth.  The server will
285           generally treat it as $SVN::Depth::infinity.
286
287       $SVN::Depth::exclude
288           Exclude (i.e., don't descend into) directory D.
289
290           Note: In Subversion 1.5, $SVN::Depth::exclude is not supported
291           anyhwere in the client-side (Wc/Client/etc) code; it is only
292           supported as an argument to set_path functions in the Ra and Repos
293           reporters.  (This will enable future versions of Subversion to run
294           updates, etc, against 1.5 servers with proper $SVN::Depth::exclude
295           behavior, once we get a chance to implement client side support for
296           $SVN::Depth::exclude).
297
298       $SVN::Depth::empty
299           Just the named directory D, no entries.
300
301           Updates will not pull in any files or subdirectories not already
302           present.
303
304       $SVN::Depth::files
305           D + its files children, but not subdirs.
306
307           Updates will pull in any files not already present, but not
308           subdirectories.
309
310       $SVN::Depth::immediates
311           D + immediate children (D and its entries).
312
313           Updates will pull in any files or subdirectories not already
314           present; those subdirectories' this_dir entries will have depth-
315           empty.
316
317       $SVN::Depth::infinity
318           D + all descendants (full recursion from D).
319
320           Updates will pull in any files or subdirectories not already
321           present; those subdirectories' this_dir entries will have depth-
322           infinity.  Equivalent to the pre 1.5 default update behavior.
323
324   svn_opt_revision_t
325       A revision, specified in one of "SVN::Core::opt_revision_*" ways.
326
327       $rev->kind()
328           An enum denoting how the revision $rev was specified.  One of
329           $SVN::Core::opt_revision_unspecified,
330           $SVN::Core::opt_revision_number, $SVN::Core::opt_revision_date,
331           $SVN::Core::opt_revision_committed,
332           $SVN::Core::opt_revision_previous, $SVN::Core::opt_revision_base,
333           $SVN::Core::opt_revision_working or $SVN::Core::opt_revision_head.
334
335       $rev->value()
336           Extra data about the revision. Only relevant if "$rev->kind" is
337           $SVN::Core::opt_revision_number (where it contains the revision
338           number) or $SVN::Core::opt_revision_date (where it contains a
339           date).
340
341   svn_opt_revision_range_t
342       An object representing a range of revisions.
343
344       $range->start()
345           The first revision in the range, a "_p_svn_opt_revision_t" object.
346
347       $range->end()
348           The last revision in the range, a "_p_svn_opt_revision_t" object.
349
350   svn_config_t
351       Opaque object describing a set of configuration options.
352
353   svn_dirent_t
354       $dirent->kind()
355           Node kind.  A number which matches one of these constants:
356           $SVN::Node::none, $SVN::Node::file, $SVN::Node::dir,
357           $SVN::Node::unknown.
358
359       $dirent->size()
360           Length of file text, or 0 for directories.
361
362       $dirent->has_props()
363           Does the node have properties?
364
365       $dirent->created_rev()
366           Last revision in which this node changed.
367
368       $dirent->time()
369           Time of created_rev (mod-time).
370
371       $dirent->last_author()
372           Author of created rev.
373
374   svn_commit_info_t
375       $commit->revision()
376           Just committed revision.
377
378       $commit->date()
379           Server-side date of the commit.
380
381       $commit->author()
382           Author of the commit.
383
384       $commit->post_commit_err()
385           Error message from the post-commit hook, or undef.
386
387       $commit->repos_root()
388           Repository root, may be "undef" if unknown.
389
390   svn_log_entry_t
391       $entry->revision()
392           The revision of the commit.
393
394       $entry->revprops()
395           A reference to a hash of requested revision properties, which may
396           be "undef" if it would contain no revprops.
397
398       $entry->has_children()
399           Whether or not this message has children.
400
401       $entry->changed_paths2()
402           A reference to hash containing as keys every path committed in
403           "$entry->revision()"; the values are "_p_svn_log_changed_path2_t"
404           objects.
405
406       $entry->non_inheritable()
407           Whether "$entry->revision()" should be interpreted as non-
408           inheritable in the same sense of "_p_svn_merge_range_t".
409
410       $entry->subtractive_merge()
411           Whether "$entry->revision()" is a merged revision resulting from a
412           reverse merge.
413
414   svn_auth_cred_simple_t
415       $simple->username()
416           Username.
417
418       $simple->password()
419           Password.
420
421       $simple->may_save()
422           Indicates if the credentials may be saved (to disk).
423
424   svn_auth_cred_username_t
425       $username->username()
426           Username.
427
428       $username->may_save()
429           Indicates if the credentials may be saved (to disk).
430
431   svn_auth_cred_ssl_server_trust_t
432       $strust->may_save()
433           Indicates if the credentials may be saved (to disk).
434
435       $strust->accepted_failures()
436           Bit mask of the accepted failures.
437
438   svn_auth_ssl_server_cert_info_t
439       $scert->hostname()
440           Primary CN.
441
442       $scert->fingerprint()
443           ASCII fingerprint.
444
445       $scert->valid_from()
446           ASCII date from which the certificate is valid.
447
448       $scert->valid_until()
449           ASCII date until which the certificate is valid.
450
451       $scert->issuer_dname()
452           DN of the certificate issuer.
453
454       $scert->ascii_cert()
455           Base-64 encoded DER certificate representation.
456
457   svn_auth_cred_ssl_client_cert_t
458       $ccert->cert_file()
459           Full paths to the certificate file.
460
461       $ccert->may_save()
462           Indicates if the credentials may be saved (to disk).
463
464   svn_auth_cred_ssl_client_cert_pw_t
465       $ccertpw->password()
466           Certificate password.
467
468       $ccertpw->may_save()
469           Indicates if the credentials may be saved (to disk).
470

CONSTANTS

472   SVN::Auth::SSL
473       $SVN::Auth::SSL::NOTYETVALID
474           Certificate is not yet valid.
475
476       $SVN::Auth::SSL::EXPIRED
477           Certificate has expired.
478
479       $SVN::Auth::SSL::CNMISMATCH
480           Certificate's CN (hostname) does not match the remote hostname.
481
482       $SVN::Auth::SSL::UNKNOWNCA
483           Certificate authority is unknown (i.e. not trusted).
484
485       $SVN::Auth::SSL::OTHER
486           Other failure. This can happen if some unknown error condition
487           occurs.
488
489   _p_svn_lock_t
490       Objects of this class contain information about locks placed on files
491       in a repository.  It has the following accessor methods:
492
493       path
494           The full path to the file which is locked, starting with a forward
495           slash ("/").
496
497       token
498           A string containing the lock token, which is a unique URI.
499
500       owner
501           The username of whoever owns the lock.
502
503       comment
504           A comment associated with the lock, or undef if there isn't one.
505
506       is_dav_comment
507           True if the comment was made by a generic DAV client.
508
509       creation_date
510           Time at which the lock was created, as the number of microseconds
511           since 00:00:00 January 1, 1970 UTC.  Divide it by 1_000_000 to get
512           a Unix time_t value.
513
514       expiration_date
515           When the lock will expire.  Has the value '0' if the lock will
516           never expire.
517

AUTHORS

519       Chia-liang Kao <clkao@clkao.org>
520
522           Licensed to the Apache Software Foundation (ASF) under one
523           or more contributor license agreements.  See the NOTICE file
524           distributed with this work for additional information
525           regarding copyright ownership.  The ASF licenses this file
526           to you under the Apache License, Version 2.0 (the
527           "License"); you may not use this file except in compliance
528           with the License.  You may obtain a copy of the License at
529
530             http://www.apache.org/licenses/LICENSE-2.0
531
532           Unless required by applicable law or agreed to in writing,
533           software distributed under the License is distributed on an
534           "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
535           KIND, either express or implied.  See the License for the
536           specific language governing permissions and limitations
537           under the License.
538
539
540
541perl v5.30.1                      2020-02-12                   native::Core(3)
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