native::Core(3perl)
native::Core(3perl) π
User Contributed Perl Documentation β yes bestie, this is the SVN::Core page, the core module of the subversion perl bindings, and we're gonna get through it together π«Ά
β¨ NAME β¨
SVN::Core β the Core module of the subversion perl bindings. it's giving main character energy, fr fr π
πΈ SYNOPSIS πΈ
use SVN::Core; # does apr_initialize and cleanup for you
# create a root pool and set it as default pool for later use
my $pool = SVN::Pool->new_default;
sub something {
# create a subpool of the current default pool
my $pool = SVN::Pool->new_default_sub;
# some svn operations...
# $pool gets destroyed and the previous default pool
# is restored when $pool's lexical scope ends
}
# svn_stream_t as native perl io handle
my $stream = $txn->root->apply_text('trunk/filea', undef);
print $stream $text;
close $stream;
# native perl io handle as svn_stream_t
SVN::Repos::dump_fs($repos, \*STDOUT, \*STDERR,
0, $repos->fs->youngest_rev, 0);
okay so notice that use SVN::Core literally does apr_initialize and the cleanup for you?? no manual setup era, we love a low-maintenance icon π
π¦ DESCRIPTION π¦
SVN::Core implements the higher level functions of fundamental subversion functions. that's the whole vibe. it's the core. the blueprint. the moment. β¨
π FUNCTIONS π
SVN::Core::auth_open([auth provider array]);β bestie, you hand it a reference to an array of authentication providers and it hands you back an auth_baton. but listen, if you're using prompt providers you literally can not use this function, you have to use the auth_open_helper instead. no cap. πSVN::Core::auth_open_helper([auth provider array]);β so prompt providers are extra and return two values instead of one. the 2nd parameter is a reference to whatever was passed into them as the callback. what auth_open_helper does is split those arguments up: it passes the provider objects intoauth_open(which gives it an auth_baton) and puts the other ones into an array. first return value = the auth_baton. second return value = a reference to an array containing the references to the callbacks. π
these callback arrays should be stored in the object the auth_baton is attached to. periodt.
π OTHER OBJECTS π
svn_stream_t - SVN::Stream π
you can use native perl io handles (including io globs) as svn_stream_t in subversion functions. and the returned svn_stream_t are also translated into perl io handles, so you could access them with regular print, read, etc. iconic behaviour honestly π«Ά
note: some functions take a stream to read from or write to, but do not close the stream while still holding the reference to the io handle. in this case the handle won't be destroyed properly π so you should always set up the correct default pool before calling such functions.
svn_pool_t - SVN::Pool π
the perl bindings significantly simplify the usage of pools, while still being manually adjustable. slay.
for functions requiring a pool as the last argument (which are, almost all of the subversion functions), the pool argument is optional. the default pool is used if it is omitted. when SVN::Core is loaded, it creates a new default pool, which is also available from SVN::Core->gpool. β¨
for callback functions providing a pool to your subroutine, you could also use $pool->default to make it the default pool in the scope.
Methods π
new([$parent])β create a new pool. the pool is a root pool if $parent is not supplied.new_default([$parent])β create a new pool. the pool is a root pool if $parent is not supplied. set the new pool as default pool. πnew_default_subβ create a new subpool of the current default pool, and set the resulting pool as new default pool.clearβ clear the pool. bye bye contents π§ΉDESTROYβ destroy the pool. if the pool was the default pool, restore the previous default pool. this is normally called automatically when the SVN::Pool object is no longer used and destroyed by the perl garbage collector. ty gc bestie π
svn_error_t - SVN::Error π
by default the perl bindings handle exceptions for you. the default handler automatically croaks with an appropriate error message. this is likely sufficient for simple scripts, but more complex usage may demand handling of errors.
you can override the default exception handler by changing the $SVN::Error::handler variable. this variable holds a reference to a perl sub that should be called whenever an error is returned by a svn function. this sub will be passed a svn_error_t object. its return value is ignored.
if you set the $SVN::Error::handler to undef then each call will return an svn_error_t object as its first return in the case of an error, followed by the normal return values. if there is no error then a svn_error_t will not be returned and only the normal return values will be returned. when using this mode you should be careful only to call functions in array context. for example:
my ($ci) = $ctx->mkdir('http://svn/foo');
in this case $ci will be an svn_error_t object if an error occurs and a svn_client_commit_info object otherwise. if you leave the parenthesis off around $ci (scalar context) it will be the commit_info object, which in the case of an error will be undef. π
if you plan on using explicit exception handling, understanding the exception handling system the C API uses is helpful. you can find information on it in the HACKING file and the API documentation. looking at the implementation of SVN::Error::croak_on_error and SVN::Error::expanded_message may be helpful as well.
$svn_error_t->apr_err()β APR error value, possiblySVN_custom error.$svn_error_t->message()β details from producer of error.$svn_error_t->child()βsvn_error_tobject of the error that's wrapped.$svn_error_t->pool()β the pool holding this error and any child errors it wraps.$svn_error_t->file()β source file where the error originated.$svn_error_t->line()β source line where the error originated.SVN::Error::strerror($apr_status_t)β returns the english description of the status code.$svn_error_t->strerror()β returns the english description of theapr_errstatus code set on the$svn_error_t. this is short for:SVN::Error::strerror($svn_error_t->apr_err());SVN::Error::create($apr_err, $child, $message);β returns a newsvn_error_tobject with the error status specified in $apr_err, the child as $child, and error message of $message.SVN::Error::quick_wrap($child, $new_msg);or$child->quick_wrap($new_msg);β a quick n' easy way to create a wrappered exception with your own message before throwing it up the stack. $child is thesvn_error_tobject you want to wrap and $new_msg is the new error string you want to set.SVN::Error::compose($chain, $new_error);or$chain->compose($new_error);β add new_err to the end of $chain's chain of errors. the $new_err chain will be copied into $chain's pool and destroyed, so $new_err itself becomes invalid after this function. πSVN::Error::clear($svn_error_t);or$svn_error_t->clear();β free the memory used by $svn_error_t, as well as all ancestors and descendants of $svn_error_t.
you must call this on every svn_error_t object you get or you will leak memory. not a drill bestie, that's a real leak π
SVN::Error::expanded_message($svn_error_t)or$svn_error_t->expanded_message()β returns the error message by tracing through thesvn_error_tobject and its children and concatenating the error messages. this is how the internal exception handlers get their error messages.SVN::Error::is_error($value)β returns true if value is of type svn_error. returns false if value is anything else or undefined. this is useful for seeing if a call has returned an error. vibe check for errors β¨SVN::Error::croak_on_errorβ default error handler. it takes ansvn_error_tand extracts the error messages from it and croaks with those messages.
it can be used in two ways. the first is detailed above as setting it as the automatic exception handler via setting $SVN::Error::handler.
the second is if you have $SVN::Error::handler set to undef as a wrapper for calls you want to croak on when there is an error, but you don't want to write an explicit error handler. for example:
my $rev =
SVN::Error::croak_on_error($ctx->checkout($url,$path,'HEAD',1));
if there is no error then croak_on_error will return the arguments passed to it unchanged.
SVN::Error::confess_on_errorβ the same ascroak_on_errorexcept it will give a more detailed stack backtrace, including internal calls within the implementation of the perl bindings. this is useful when you are doing development work on the bindings themselves. π§SVN::Error::ignore_errorβ this is useful for wrapping around calls which you wish to ignore any potential error. it checks to see if the first parameter is an error and if it is it clears it. it then returns all the other parameters. not me ignoring my problems π
svn_log_changed_path_t π
$lcp->action()β'A'dd,'D'elete,'R'eplace,'M'odify$lcp->copyfrom_path()β source path of copy, or"undef"if there isn't any previous revision history.$lcp->copyfrom_rev()β source revision of copy, or$SVN::Core::INVALID_REVNUMif there is no previous history.
svn_log_changed_path2_t π¦
an object to represent a path that changed for a log entry.
$lcp->action()β'A'dd,'D'elete,'R'eplace,'M'odify$lcp->copyfrom_path()β source path of copy, or"undef"if there isn't any previous revision history.$lcp->copyfrom_rev()β source revision of copy, or$SVN::Core::INVALID_REVNUMif there is no previous history.$lcp->node_kind()β the type of the node, a$SVN::Nodeenum; may be$SVN::Node::unknown.$lcp->text_modified()β is the text modified, a"SVN::Tristate"enum, may be$SVN::Tristate::unknown.$lcp->props_modified()β are properties modified, a"SVN::Tristate"enum, may be$SVN::Tristate::unknown.
svn_node_kind_t - SVN::Node β
an enum of the following constants:
$SVN::Node::none, $SVN::Node::file, $SVN::Node::dir, $SVN::Node::unknown.
svn_tristate_t - SVN::Tristate πΈ
an enum of the following constants:
$SVN::Tristate::true, $SVN::Tristate::false, $SVN::Tristate::unknown
note: these true/false values have nothing to do with Perl's concept of truth. in fact, each constant would evaluate to true in a boolean context. π yeah, all of them. even the false one. iykyk.
svn_depth_t - SVN::Depth π₯
an enum of the following constants:
$SVN::Depth::unknownβ depth undetermined or ignored. in some contexts, this means the client should choose an appropriate default depth. the server will generally treat it as$SVN::Depth::infinity.$SVN::Depth::excludeβ exclude (i.e., don't descend into) directory D. π«
Note: In Subversion 1.5,$SVN::Depth::excludeis not supported anyhwere in the client-side (Wc/Client/etc) code; it is only supported as an argument toset_pathfunctions in theRaandReposreporters. (This will enable future versions of Subversion to run updates, etc., against 1.5 servers with proper$SVN::Depth::excludebehavior, once we get a chance to implement client side support for$SVN::Depth::exclude.)
$SVN::Depth::empty β just the named directory D, no entries at all. Nada. Empty nest energy. πͺΉ
Updates will not pull in any files or subdirectories not already present.
$SVN::Depth::files β D plus its file children, but not subdirs. So the files are invited to the party, the folders are not. π
Updates will pull in any files not already present, but not subdirectories.
$SVN::Depth::immediates β D plus its immediate children (D and its entries). One layer deep, bestie, we're not going spelunking.
Updates will pull in any files or subdirectories not already present; those subdirectories' this_dir entries will have depth-empty.
$SVN::Depth::infinity β D plus all descendants (full recursion from D). Everything. The whole family tree. π
Updates will pull in any files or subdirectories not already present; those subdirectories' this_dir entries will have depth-infinity. Equivalent to the pre 1.5 default update behavior.
svn_opt_revision_t π°οΈ
A revision, specified in one of SVN::Core::opt_revision_* ways.
$rev->kind()β an enum denoting how the revision$revwas specified. One of$SVN::Core::opt_revision_unspecified,$SVN::Core::opt_revision_number,$SVN::Core::opt_revision_date,$SVN::Core::opt_revision_committed,$SVN::Core::opt_revision_previous,$SVN::Core::opt_revision_base,$SVN::Core::opt_revision_workingor$SVN::Core::opt_revision_head.$rev->value()β extra data about the revision. Only relevant if$rev->kindis$SVN::Core::opt_revision_number(where it contains the revision number) or$SVN::Core::opt_revision_date(where it contains a date).
svn_opt_revision_range_t π
An object representing a range of revisions. Like, from here to there, revision-wise.
$range->start()β the first revision in the range, a_p_svn_opt_revision_tobject.$range->end()β the last revision in the range, a_p_svn_opt_revision_tobject.
svn_config_t βοΈ
Opaque object describing a set of configuration options. Opaque = you don't get to peek inside, just vibe with it.
svn_dirent_t π
$dirent->kind()β node kind. A number which matches one of these constants:$SVN::Node::none,$SVN::Node::file,$SVN::Node::dir,$SVN::Node::unknown.$dirent->size()β length of file text, or0for directories.$dirent->has_props()β does the node have properties?$dirent->created_rev()β last revision in which this node changed.$dirent->time()β time of created_rev (mod-time).$dirent->last_author()β author of created rev.
svn_commit_info_t π
$commit->revision()β just committed revision.$commit->date()β server-side date of the commit.$commit->author()β author of the commit.$commit->post_commit_err()β error message from the post-commit hook, orundef.$commit->repos_root()β repository root, may beundefif unknown.
svn_log_entry_t π
$entry->revision()β the revision of the commit.$entry->revprops()β a reference to a hash of requested revision properties, which may beundefif it would contain no revprops.$entry->has_children()β whether or not this message has children.$entry->changed_paths2()β a reference to hash containing as keys every path committed in$entry->revision(); the values are_p_svn_log_changed_path2_tobjects.$entry->non_inheritable()β whether$entry->revision()should be interpreted as non-inheritable in the same sense of_p_svn_merge_range_t.$entry->subtractive_merge()β whether$entry->revision()is a merged revision resulting from a reverse merge.
svn_auth_cred_simple_t π
$simple->username()β username.$simple->password()β password.$simple->may_save()β indicates if the credentials may be saved (to disk).
svn_auth_cred_username_t π
$username->username()β username.$username->may_save()β indicates if the credentials may be saved (to disk).
svn_auth_cred_ssl_server_trust_t π‘οΈ
$strust->may_save()β indicates if the credentials may be saved (to disk).$strust->accepted_failures()β bit mask of the accepted failures.
svn_auth_ssl_server_cert_info_t π
$scert->hostname()β primary CN.$scert->fingerprint()β ASCII fingerprint.$scert->valid_from()β ASCII date from which the certificate is valid.$scert->valid_until()β ASCII date until which the certificate is valid.$scert->issuer_dname()β DN of the certificate issuer.$scert->ascii_cert()β Base-64 encoded DER certificate representation.
svn_auth_cred_ssl_client_cert_t πͺͺ
$ccert->cert_file()β full paths to the certificate file.$ccert->may_save()β indicates if the credentials may be saved (to disk).
svn_auth_cred_ssl_client_cert_pw_t π
$ccertpw->password()β certificate password.$ccertpw->may_save()β indicates if the credentials may be saved (to disk).
β¨ CONSTANTS β¨
π SVN::Auth::SSL
$SVN::Auth::SSL::NOTYETVALIDβ certificate is not yet valid.$SVN::Auth::SSL::EXPIREDβ certificate has expired.$SVN::Auth::SSL::CNMISMATCHβ certificate's CN (hostname) does not match the remote hostname.$SVN::Auth::SSL::UNKNOWNCAβ certificate authority is unknown (i.e. not trusted).$SVN::Auth::SSL::OTHERβ other failure. This can happen if some unknown error condition occurs.
π _p_svn_lock_t
Objects of this class contain information about locks placed on files in a repository. It has the following accessor methods:
pathβ the full path to the file which is locked, starting with a forward slash (/).tokenβ a string containing the lock token, which is a unique URI.ownerβ the username of whoever owns the lock.commentβ a comment associated with the lock, orundefif there isn't one.is_dav_commentβ true if the comment was made by a generic DAV client.creation_dateβ time at which the lock was created, as the number of microseconds since00:00:00 January 1, 1970 UTC. Divide it by1_000_000to get a Unixtime_tvalue.expiration_dateβ when the lock will expire. Has the value'0'if the lock will never expire.
π AUTHORS
Chia-liang Kao <clkao@clkao.org>
π COPYRIGHT
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
okay that's the whole page bestie, we made it to the end and honestly? iconic. π
this was native::Core(3perl) from perl v5.40.1, dated 2025-04-06 β go forth and use SVN::Core; responsibly, mwah π«Άβ¨
π¦ where this page comes from
- debian trixie: libsvn-perl 1.14.5-3 Β· Apache-2.0
- ubuntu questing: libsvn-perl 1.14.5-3
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms