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native::Client(3)	       User Contributed Perl Documentation		native::Client(3)

NAME
       SVN::Client - Subversion client functions

SYNOPSIS
	   use SVN::Client;
	   my $ctx = new SVN::Client(
		     auth => [SVN::Client::get_simple_provider(),
		     SVN::Client::get_simple_prompt_provider(\&simple_prompt,2),
		     SVN::Client::get_username_provider()]
		     );

	   $ctx->cat(\*STDOUT, 'http://svn.apache.org/repos/asf/subversion/trunk/README',
		     'HEAD');

	   sub simple_prompt {
	     my $cred = shift;
	     my $realm = shift;
	     my $default_username = shift;
	     my $may_save = shift;
	     my $pool = shift;

	     print "Enter authentication info for realm: $realm\n";
	     print "Username: ";
	     my $username = <>;
	     chomp($username);
	     $cred->username($username);
	     print "Password: ";
	     my $password = <>;
	     chomp($password);
	     $cred->password($password);
	   }

DESCRIPTION
       SVN::Client wraps the highest level of functions provided by subversion to accomplish
       specific tasks in an object oriented API.  Methods are similar to the functions provided
       by the C API and as such the documentation for it may be helpful in understanding this
       interface.

       There are a few notable differences from the C API.  Most C function calls take a
       svn_client_ctx_t pointer as the next to last parameter.	The Perl method calls take a
       SVN::Client object as the first parameter.  This allows method call invocation of the
       methods to be possible.	For example, the following are equivalent:

	 SVN::Client::add($ctx,$path, $recursive, $pool);
	 $ctx->add($path, $recursive, $pool);

       Many of the C API calls also take a apr_pool_t pointer as their last argument.  The Perl
       bindings generally deal with this for you and you do not need to pass a pool parameter.
       However, you may still pass a pool parameter as the last parameter to override the
       automatic handling of this for you.

       Users of this interface should not directly manipulate the underlying hash values but
       should use the respective attribute methods.  Many of these attribute methods do other
       things, especially when setting an attribute, besides simply manipulating the value in the
       hash.

PARAMETER NOTES
       The client methods described below take a variety of parameters.  Many of them are
       similar.  Methods accepting parameters named below will follow the rules below or will be
       noted otherwise in the method description.

       $ctx
	   An SVN::Client object that you get from the constructor.

       $url
	   This is a URL to a subversion repository.

       $path
	   This is a path to a file or directory on the local file system.

       $paths
	   This argument can either be a single path to a file or directory on the local file
	   system, or it can be a reference to an array of files or directories on the local file
	   system.

       $target
	   This is a path to a file or directory in a working copy or a URL to a file or
	   directory in a subversion repository.

       $targets
	   This argument can either be a single $target (as defined above) or a reference to an
	   array of them.

       $revision
	   This specifies a revision in the subversion repository.  You can specify a revision in
	   several ways.  The easiest and most obvious is to directly provide the revision
	   number.  You may also use the strings (aka revision keywords) 'HEAD', 'BASE',
	   'COMMITTED', and 'PREV' which have the same meanings as in the command line client.
	   When referencing a working copy you can use the string 'WORKING" to reference the BASE
	   plus any local modifications.  undef may be used to specify an unspecified revision.
	   Finally you may pass a date by specifying the date inside curly braces '{}'.  The date
	   formats accepted are the same as the command line client accepts.

       $recursive $nonrecursive.
	   A boolean parameter that specifies if the action should follow directories.	It should
	   only be 1 or 0.  $recursive means, 1 means to descend into directories, 0 means not
	   to.	$nonrecursive has the inverse meaning.

       $pool
	   Pool is always an option parameter.	If you wish to pass a pool parameter it should be
	   a SVN::Pool or an apr_pool_t object.

METHODS
       The following methods are available:

       $ctx = SVN::Client->new( %options );
	   This class method constructs a new "SVN::Client" object and returns a reference to it.

	   Key/value pair arguments may be provided to set up the initial state of the user
	   agent.  The following methods correspond to attribute methods described below:

	       KEY		      DEFAULT
	       ----------	      ----------------------------------------
	       auth		      auth_baton initiated with providers that
				      read cached authentication options from
				      the subversion config only.

	       cancel		      undef

	       config		      Hash containing the config from the
				      default subversion config file location.

	       log_msg		      undef

	       notify		      undef

	       pool		      A new pool is created for the context.

       $ctx->add($path, $recursive, $pool);
	   Schedule a working copy $path for addition to the repository.

	   $path's parent must be under revision control already, but $path is not.  If
	   $recursive is set, then assuming $path is a directory, all of its contents will be
	   scheduled for addition as well.

	   Calls the notify callback for each added item.

	   Important: this is a scheduling operation.  No changes will happen to the repository
	   until a commit occurs.  This scheduling can be removed with $ctx->revert().

	   No return.

       $ctx->blame($target, $start, $end, \&receiver, $pool);
	   Invoke \&receiver subroutine on each line-blame item associated with revision $end of
	   $target, using $start as the default source of all blame.

	   An Error will be raised if either $start or $end is undef.

	   No return.

	   The blame receiver subroutine receives the following arguments: $line_no, $revision,
	   $author, $date, $line, $pool

	   $line_no is the line number of the file (starting with 0).  The line was last changed
	   in revision number $revision by $author on $date and the contents were $line.

	   The blame receiver subroutine can return an svn_error_t object to return an error.
	   All other returns will be ignored.  You can create an svn_error_t object with
	   SVN::Error::create().

       $ctx->cat(\*FILEHANDLE, $target, $revision, $pool);
	   Outputs the content of the file identified by $target and $revision to the FILEHANDLE.
	   FILEHANDLE is a reference to a filehandle.

	   If $target is not a local path and if $revision is 'PREV' (or some other kind that
	   requires a local path), then an error will be raised, because the desired revision can
	   not be determined.

       $ctx->checkout($url, $path, $revision, $recursive, $pool);
	   Checkout a working copy of $url at $revision using $path as the root directory of the
	   newly checked out working copy.

	   $revision must be a number, 'HEAD', or a date.  If $revision does not meet these
	   requirements the $SVN::Error::CLIENT_BAD_REVISION is raised.

	   Returns the value of the revision actually checked out of the repository.

       $ctx->cleanup($dir, $pool);
	   Recursively cleanup a working copy directory, $dir, finishing any incomplete
	   operations, removing lockfiles, etc.

       $ctx->commit($targets, $nonrecursive, $pool);
	   Commit files or directories referenced by target.  Will use the log_msg callback to
	   obtain the log message for the commit.

	   If $targets contains no paths (zero elements), then does nothing and immediately
	   returns without error.

	   Calls the notify callback as the commit progresses with any of the following actions:
	   $SVN::Wc::Notify::Action::commit_modified, $SVN::Wc::Notify::Action::commit_added,
	   $SVN::Wc::Notify::Action::commit_deleted, $SVN::Wc::Notify::Action::commit_replaced,
	   $SVN::Wc::Notify::Action::commit_postfix_txdelta.

	   Use $nonrecursive to indicate that subdirectories of directory targets should be
	   ignored.

	   Returns a svn_client_commit_info_t object.  If the revision member of the commit
	   information object is $SVN::Core::INVALID_REVNUM and no error was raised, then the
	   commit was a no-op; nothing needed to be committed.

       $ctx->copy($src_target, $src_revision, $dst_target, $pool);
	   Copies $src_target to $dst_target.

	   $src_target must be a file or directory under version control, or the URL of a
	   versioned item in the repository.  If $src_target is a URL, $src_revision is used to
	   choose the revision from which to copy the $src_target.  $dst_path must be a file or
	   directory under version control, or a repository URL, existing or not.

	   If $dst_target is a URL, immediately attempt to commit the copy action to the
	   repository.	The log_msg callback will be called to query for a commit log message.
	   If the commit succeeds, return a svn_client_commit_info_t object.

	   If $dst_target is not a URL, then this is just a variant of $ctx->add(), where the
	   $dst_path items are scheduled for addition as copies.  No changes will happen to the
	   repository until a commit occurs.  This scheduling can be removed with $ctx->revert().
	   undef will be returned in this case.

	   Calls the notify callback for each item added at the new location, passing the new,
	   relative path of the added item.

       $ctx->delete($targets, $force, $pool);
	   Delete items from a repository or working copy.

	   If the paths in $targets are URLs, immediately attempt to commit a deletion of the
	   URLs from the repository.  The log_msg callback will be called to query for a commit
	   log message.  If the commit succeeds, return a svn_client_commit_info_t object.  Every
	   path must belong to the same repository.

	   Else, schedule the working copy paths in $targets for removal from the repository.
	   Each path's parent must be under revision control.  This is just a scheduling
	   operation.  No changes will happen to the repository until a commit occurs.	This
	   scheduling can be removed with $ctx->revert().  If a path is a file it is immediately
	   removed from the working copy.  If the path is a directory it will remain in the
	   working copy but all the files, and all unversioned items it contains will be removed.
	   If $force is not set then this operation will fail if any path contains locally
	   modified and/or unversioned items.  If $force is set such items will be deleted.

	   The notify callback is called for each item deleted with the path of the deleted item.

	   Has no return.

       $ctx->diff($diff_options, $target1, $revision1, $target2, $revision2, $recursive,
       $ignore_ancestry, $no_diff_deleted, $outfile, $errfile, $pool);
	   Produces diff output which describes the delta between $target1 at $revision1 and
	   $target2 at $revision2.  They both must represent the same node type (i.e. they most
	   both be directories or files).  The revisions must not be undef.

	   Prints the output of the diff to the filename or filehandle passed as $outfile, and
	   any errors to the filename or filehandle passed as $errfile.

	   Use $ignore_ancestry to control whether or not items being diffed will be checked for
	   relatedness first.  Unrelated items are typically transmitted to the editor as a
	   deletion of one thing and the addition of another, but if this flag is true, unrelated
	   items will be diffed as if they were related.

	   If $no_diff_deleted is true, then no diff output will be generated on deleted files.

	   $diff_options is a reference to an array of additional arguments to pass to diff
	   process invoked to compare files.  You'll usually just want to use [] to pass an empty
	   array to return a unified context diff (like `diff -u`).

	   Has no return.

       $ctx->diff_summarize($target1, $revision1, $target2, $revision2, $recursive,
       $ignore_ancestry, \&summarize_func, $pool);
	   Produce a diff summary which lists the changed items between $target1 at $revision1
	   and $target2 at $revision2 without creating text deltas.  $target1 and $target2 can be
	   either working-copy paths or URLs.

	   The function may report false positives if $ignore_ancestry is false, since a file
	   might have been modified between two revisions, but still have the same contents.

	   Calls \&summarize_func with with a svn_client_diff_summarize_t structure describing
	   the difference.

	   See diff() for a description of the other parameters.

	   Has no return.

       $ctx->export($from, $to, $revision, $force, $pool);
	   Export the contents of either a subversion repository or a subversion working copy
	   into a 'clean' directory (meaning a directory with no administrative directories).

	   $from is either the path to the working copy on disk, or a URL to the repository you
	   wish to export.

	   $to is the path to the directory where you wish to create the exported tree.

	   $revision is the revision that should be exported, which is only used when exporting
	   from a repository.  It may be undef otherwise.

	   The notify callback will be called for the items exported.

	   Returns the value of the revision actually exported or $SVN::Core::INVALID_REVNUM for
	   local exports.

       $ctx->import($path, $url, $nonrecursive, $pool);
	   Import file or directory $path into repository directory $url at head.

	   If some components of $url do not exist then create parent directories as necessary.

	   If $path is a directory, the contents of that directory are imported directly into the
	   directory identified by $url.  Note that the directory $path itself is not imported;
	   that is, the basename of $path is not part of the import.

	   If $path is a file, then the dirname of $url is the directory receiving the import.
	   The basename of $url is the filename in the repository.  In this case if $url already
	   exists, raise an error.

	   The notify callback (if defined) will be called as the import progresses, with any of
	   the following actions: $SVN::Wc::Notify::Action::commit_added,
	   $SVN::Wc::Notify::Action::commit_postfix_txdelta.

	   Use $nonrecursive to indicate that imported directories should not recurse into any
	   subdirectories they may have.

	   Uses the log_msg callback to determine the log message for the commit when one is
	   needed.

	   Returns a svn_client_commit_info_t object.

       $ctx->log($targets, $start, $end, $discover_changed_paths, $strict_node_history,
       \&log_receiver, $pool);
	   Invoke the log_receiver subroutine on each log_message from $start to $end in turn,
	   inclusive (but will never invoke receiver on a given log message more than once).

	   $targets is a reference to an array containing all the paths or URLs for which the log
	   messages are desired.  The log_receiver is only invoked on messages whose revisions
	   involved a change to some path in $targets.

	   If $discover_changed_paths is set, then the changed_paths argument to the log_receiver
	   routine will be passed on each invocation.

	   If $strict_node_history is set, copy history (if any exists) will not be traversed
	   while harvesting revision logs for each target.

	   If $start or $end is undef the arp_err code will be set to:
	   $SVN::Error::CLIENT_BAD_REVISION.

	   Special case for repositories at revision 0:

	   If $start is 'HEAD' and $end is 1, then handle an empty (no revisions) repository
	   specially: instead of erroring because requested revision 1 when the highest revision
	   is 0, just invoke $log_receiver on revision 0, passing undef to changed paths and
	   empty strings for the author and date.  This is because that particular combination of
	   $start and $end usually indicates the common case of log invocation; the user wants to
	   see all log messages from youngest to oldest, where the oldest commit is revision 1.
	   That works fine, except there are no commits in the repository, hence this special
	   case.

	   Calls the notify subroutine with a $SVN::Wc::Notify::Action::skip signal on any
	   unversioned targets.

	   The log_receiver takes the following arguments: $changed_paths, $revision, $author,
	   $date, $message, $pool

	   It is called once for each log $message from the $revision on $date by $author.
	   $author, $date or $message may be undef.

	   If $changed_paths is defined it references a hash with the keys every path committed
	   in $revision; the values are svn_log_changed_path_t objects.

       $ctx->ls($target, $revision, $recursive, $pool);
	   Returns a hash of svn_dirent_t objects for $target at $revision.

	   If $target is a directory, returns entries for all of the directories' contents.  If
	   $recursive is true, it will recurse subdirectories in $target.

	   If $target is a file only return an entry for the file.

	   If $target is non-existent, raises the $SVN::Error::FS_NOT_FOUND error.

       $ctx->merge($src1, $rev1, $src2, $rev2, $target_wcpath, $recursive, $ignore_ancestry,
       $force, $dry_run, $pool);
	   Merge changes from $src1/$rev1 to $src2/$rev2 into the working-copy path
	   $target_wcpath.

	   $src1 and $src2 are either URLs that refer to entries in the repository, or paths to
	   entries in the working copy.

	   By 'merging', we mean: apply file differences and schedule additions & deletions when
	   appropriate.

	   $src1 and $src2 must both represent the same node kind; that is, if $src1 is a
	   directory, $src2 must also be, and if $src1 is a file, $src2 must also be.

	   If either $rev1 or $rev2 is undef raises the $SVN::Error::CLIENT_BAD_REVISION error.

	   If $recursive is true (and the URLs are directories), apply changes recursively;
	   otherwise, only apply changes in the current directory.

	   Use $ignore_ancestry to control whether or not items being diffed will be checked for
	   relatedness first.  Unrelated items are typically transmitted to the editor as a
	   deletion of one thing and the addition of another, but if this flag is true, unrelated
	   items will be diffed as if they were related.

	   If $force is not set and the merge involves deleting locally modified or unversioned
	   items the operation will raise an error.  If $force is set such items will be deleted.

	   Calls the notify callback once for each merged target, passing the targets local path.

	   If $dry_run is true the merge is carried out, and the full notification feedback is
	   provided, but the working copy is not modified.

	   Has no return.

       $ctx->mkdir($targets, $pool);
	   Create a directory, either in a repository or a working copy.

	   If $targets contains URLs, immediately attempts to commit the creation of the
	   directories in $targets in the repository.  Returns a svn_client_commit_info_t object.

	   Else, create the directories on disk, and attempt to schedule them for addition.  In
	   this case returns undef.

	   Calls the notify callback when the directory has been created (successfully) in the
	   working copy, with the path of the new directory.  Note this is only called for items
	   added to the working copy.

       $ctx->move($src_path, $src_revision, $dst_path, $force, $pool);
	   Move $src_path to $dst_path.

	   $src_path must be a file or directory under version control, or the URL of a versioned
	   item in the repository.

	   If $src_path is a repository URL:

	   * $dst_path must also be a repository URL (existent or not).

	   * $src_revision is used to choose the revision from which to copy the $src_path.

	   * The log_msg callback will be called for the commit log message.

	   * The move operation will be immediately committed.	If the commit succeeds, returns a
	   svn_client_commit_info_t object.

	   If $src_path is a working copy path

	   * $dst_path must also be a working copy path (existent or not).

	   * $src_revision is ignored and may be undef.  The log_msg callback will not be called.

	   * This is a scheduling operation.  No changes will happen to the repository until a
	   commit occurs.  This scheduling can be removed with $ctx->revert().	If $src_path is a
	   file it is removed from the working copy immediately.  If $src_path is a directory it
	   will remain in the working copy but all files, and unversioned items, it contains will
	   be removed.

	   * If $src_path contains locally modified and/or unversioned items and $force is not
	   set, the copy will raise an error.  If $force is set such items will be removed.

	   The notify callback will be called twice for each item moved, once to indicate the
	   deletion of the moved node, and once to indicate the addition of the new location of
	   the node.

       $ctx->propget($propname, $target, $revision, $recursive, $pool);
	   Returns a reference to a hash containing paths or URLs, prefixed by $target (a working
	   copy or URL), of items for which the property $propname is set, and whose values
	   represent the property value for $propname at that path.

       $ctx->proplist($target, $revision, $recursive, $pool);
	   Returns a reference to an array of svn_client_proplist_item_t objects.

	   For each item the node_name member of the proplist_item object contains the name
	   relative to the same base as $target.

	   If $revision is undef, then get properties from the working copy, if $target is a
	   working copy, or from the repository head if $target is a URL.  Else get the
	   properties as of $revision.

	   If $recursive is false, or $target is a file, the returned array will only contain a
	   single element.  Otherwise, it will contain one entry for each versioned entry below
	   (and including) $target.

	   If $target is not found, raises the $SVN::Error::ENTRY_NOT_FOUND error.

       $ctx->propset($propname, $propval, $target, $recursive, $pool);
	   Set $propname to $propval on $target (a working copy or URL path).

	   If $recursive is true, then $propname will be set recursively on $target and all
	   children.  If $recursive is false, and $target is a directory, $propname will be set
	   on only $target.

	   A $propval of undef will delete the property.

	   If $propname is an svn-controlled property (i.e. prefixed with svn:), then the caller
	   is responsible for ensuring that $propval is UTF8-encoded and uses LF line-endings.

       $ctx->relocate($dir, $from, $to, $recursive, $pool);
	   Modify a working copy directory $dir, changing any repository URLs that begin with
	   $from to begin with $to instead, recursing into subdirectories if $recursive is true.

	   Has no return.

       $ctx->resolved($path, $recursive, $pool);
	   Removed the 'conflicted' state on a working copy path.

	   This will not semantically resolve conflicts; it just allows $path to be committed in
	   the future.	The implementation details are opaque.	If $recursive is set, recurse
	   below $path, looking for conflicts to resolve.

	   If $path is not in a state of conflict to begin with, do nothing.

	   If $path's conflict state is removed, call the notify callback with the $path.

       $ctx->revert($paths, $recursive, $pool);
	   Restore the pristine version of a working copy $paths, effectively undoing any local
	   mods.

	   For each path in $paths, if it is a directory and $recursive is true, this will be a
	   recursive operation.

       $ctx->revprop_get($propname, $url, $revision, $pool);
	   Returns two values, the first of which is the value of $propname on revision $revision
	   in the repository represented by $url.  The second value is the actual revision
	   queried.

	   Note that unlike its cousin $ctx->propget(), this routine doesn't affect working copy
	   at all; it's a pure network operation that queries an unversioned property attached to
	   a revision.	This can be used to query log messages, dates, authors, and the like.

       $ctx->revprop_list($url, $revision, $pool);
	   Returns two values, the first of which is a reference to a hash containing the
	   properties attached to $revision in the repository represented by $url.  The second
	   value is the actual revision queried.

	   Note that unlike its cousin $ctx->proplist(), this routine doesn't read a working copy
	   at all; it's a pure network operation that reads unversioned properties attached to a
	   revision.

       $ctx->revprop_set($propname, $propval, $url, $revision, $force, $pool);
	   Set $propname to $propval on revision $revision in the repository represented by $url.

	   Returns the actual revision affected.  A $propval of undef will delete the property.

	   If $force is true, allow newlines in the author property.

	   If $propname is an svn-controlled property (i.e. prefixed with svn:), then the caller
	   is responsible for ensuring that the value is UTF8-encoded and uses LF line-endings.

	   Note that unlike its cousin $ctx->propset(), this routine doesn't affect the working
	   copy at all; it's a pure network operation that changes an unversioned property
	   attached to a revision.  This can be used to tweak log messages, dates, authors, and
	   the like.  Be careful: it's a lossy operation, meaning that any existing value is
	   replaced with the new value, with no way to retrieve the prior value.

	   Also note that unless the administrator creates a pre-revprop-change hook in the
	   repository, this feature will fail.

       $ctx->status($path, $revision, \&status_func, $recursive, $get_all, $update, $no_ignore,
       $pool);
	   Given $path to a working copy directory (or single file), call status_func() with a
	   set of svn_wc_status_t objects which describe the status of $path and its children.

	   If $recursive is true, recurse fully, else do only immediate children.

	   If $get_all is set, retrieve all entries; otherwise, retrieve only 'interesting'
	   entries (local mods and/or out-of-date).

	   If $update is set, contact the repository and augment the status objects with
	   information about out-of-dateness (with respect to $revision).  Also, will return the
	   value of the actual revision against with the working copy was compared.  (The return
	   will be undef if $update is not set).

	   The function recurses into externals definitions ('svn:externals') after handling the
	   main target, if any exist.  The function calls the notify callback with
	   $SVN::Wc::Notify::Action::status_external action before handling each externals
	   definition, and with $SVN::Wc::Notify::Action::status_completed after each.

	   The status_func subroutine takes the following parameters: $path, $status

	   $path is the pathname of the file or directory which status is being reported.
	   $status is a svn_wc_status_t object.

	   The return of the status_func subroutine is ignored.

       $ctx->info($path_or_url, $peg_revision, $revision, \&receiver, $recurse);
	   Invokes \&receiver passing it information about $path_or_url for $revision.	The
	   information returned is system-generated metadata, not the sort of "property" metadata
	   created by users.  For methods available on the object passed to \&receiver, see
	   svn_info_t.

	   If both revision arguments are either svn_opt_revision_unspecified or NULL, then
	   information will be pulled solely from the working copy; no network connections will
	   be made.

	   Otherwise, information will be pulled from a repository.  The actual node revision
	   selected is determined by the $path_or_url as it exists in $peg_revision.  If
	   $peg_revision is undef, then it defaults to HEAD for URLs or WORKING for WC targets.

	   If $path_or_url is not a local path, then if $revision is PREV (or some other kind
	   that requires a local path), an error will be returned, because the desired revision
	   cannot be determined.

	   Uses the authentication baton cached in ctx to authenticate against the repository.

	   If $recurse is true (and $path_or_url is a directory) this will be a recursive
	   operation, invoking $receiver on each child.

	    my $receiver = sub {
		my( $path, $info, $pool ) = @_;
		print "Current revision of $path is ", $info->rev, "\n";
	    };
	    $ctx->info( 'foo/bar.c', undef, 'WORKING', $receiver, 0 );

       $ctx->switch($path, $url, $revision, $recursive, $pool);
	   Switch working tree $path to $url at $revision.

	   $revision must be a number, 'HEAD', or a date, otherwise it raises the
	   $SVN::Error::CLIENT_BAD_REVISION error.

	   Calls the notify callback on paths affected by the switch.  Also invokes the callback
	   for files that may be restored from the text-base because they were removed from the
	   working copy.

	   Summary of purpose: This is normally used to switch a working directory over to
	   another line of development, such as a branch or a tag.  Switching an existing working
	   directory is more efficient than checking out $url from scratch.

	   Returns the value of the revision to which the working copy was actually switched.

       $ctx->update($path, $revision, $recursive, $pool)
	   Update a working copy $path to $revision.

	   $revision must be a revision number, 'HEAD', or a date or this method will raise the
	   $SVN::Error::CLIENT_BAD_REVISION error.

	   Calls the notify callback for each item handled by the update, and also for files
	   restored from the text-base.

	   Returns the revision to which the working copy was actually updated.

       $ctx->url_from_path($target, $pool); or SVN::Client::url_from_path($target, $pool);
	   Returns the URL for $target.

	   If $target is already a URL it returns $target.

	   If $target is a versioned item, it returns $target's entry URL.

	   If $target is unversioned (has no entry), returns undef.

       $ctx->uuid_from_path($path, $adm_access, $pool);
	   Return the repository uuid for working-copy $path, allocated in $pool.

	   Use $adm_access to retrieve the uuid from $path's entry; if not present in the entry,
	   then call $ctx->uuid_from_url() to retrieve, using the entry's URL.

	   Note: The only reason this function falls back on $ctx->uuid_from_url is for
	   compatibility purposes.  Old working copies may not have uuids in the entries files.

	   Note: This method probably doesn't work right now without a lot of pain, because
	   SVN::Wc is incomplete and it requires an adm_access object from it.

       $ctx->uuid_from_url($url, $pool);
	   Return repository uuid for url.

ATTRIBUTE METHODS
       The following attribute methods are provided that allow you to set various configuration
       or retrieve it.	They all take value(s) to set the attribute and return the new value of
       the attribute or no parameters which returns the current value.

       $ctx->auth(SVN::Client::get_username_provider());
	   Provides access to the auth_baton in the svn_client_ctx_t attached to the SVN::Client
	   object.

	   This method will accept an array or array ref of values returned from the
	   authentication provider functions see "AUTHENTICATION PROVIDERS", which it will
	   convert to an auth_baton for you.  This is the preferred method of setting the
	   auth_baton.

	   It will also accept a scalar that references a _p_svn_auth_baton_t such as those
	   returned from SVN::Core::auth_open and SVN::Core::auth_open_helper.

       $ctx->notify(\&notify);
	   Sets the notify callback for the client context to a code reference that you pass.  It
	   always returns the current codereference set.

	   The subroutine pointed to by this reference will be called when a change is made to
	   the working copy.  The return value of this function is ignored.  It's only purpose is
	   to notify you of the change.

	   The subroutine will receive 6 parameters.  The first parameter will be the path of the
	   changed file (absolute or relative to the cwd).  The second is an integer specifying
	   the type of action taken.  See SVN::Wc for a list of the possible actions values and
	   what they mean.  The 3rd is an integer specifying the kind of node the path is, which
	   can be: $SVN::Node::none, $SVN::Node::file, $SVN::Node::dir, $SVN::Node::unknown.  The
	   fourth parameter is the mime-type of the file or undef if the mime-type is unknown (it
	   will always be undef for directories).  The 5th parameter is the state of the file,
	   again see SVN::Wc for a list of the possible states.  The 6th and final parameter is
	   the numeric revision number of the changed file.  The revision number will be -1
	   except when the action is $SVN::Wc::Notify::Action::update_completed.

       $ctx->log_msg(\&log_msg)
	   Sets the log_msg callback for the client context to a code reference that you pass.
	   It always returns the current codereference set.

	   The subroutine pointed to by this coderef will be called to get the log message for
	   any operation that will commit a revision to the repo.

	   It receives 4 parameters.  The first parameter is a reference to a scalar value in
	   which the callback should place the log_msg.  If you wish to cancel the commit you can
	   set this scalar to undef.  The 2nd value is a path to any temporary file which might
	   be holding that log message, or undef if no such file exists (though, if log_msg is
	   undef, this value is undefined).  The log message MUST be a UTF8 string with LF line
	   separators.	The 3rd parameter is a reference to an array of svn_client_commit_item3_t
	   objects, which may be fully or only partially filled-in, depending on the type of
	   commit operation.  The 4th and last parameter will be a pool.

	   If the function wishes to return an error it should return a svn_error_t object made
	   with SVN::Error::create.  Any other return value will be interpreted as SVN_NO_ERROR.

       $ctx->cancel(\&cancel)
	   Sets the cancellation callback for the client context to a code reference that you
	   pass.  It always returns the current codereference set.

	   The subroutine pointed to by this value will be called to see if the operation should
	   be canceled.  If the operation should be canceled, the function may return one of the
	   following values:

	   An svn_error_t object made with SVN::Error::create.

	   Any true value, in which case the bindings will generate an svn_error_t object for you
	   with the error code of SVN_ERR_CANCELLED and the string set to "By cancel callback".

	   A string, in which case the bindings will generate an svn_error_t object for you with
	   the error code of SVN_ERR_CANCELLED and the string set to the string you returned.

	   Any other value will be interpreted as wanting to continue the operation.  Generally,
	   it's best to return 0 to continue the operation.

       $ctx->pool(new SVN::Pool);
	   Method that sets or gets the default pool that is passed to method calls requiring a
	   pool, but which were not explicitly passed one.

	   See SVN::Core for more information about how pools are managed in this interface.

       $ctx->config(SVN::Core::config_get_config(undef));
	   Method that allows access to the config member of the svn_client_ctx_t.  Accepts a
	   Perl hash to set, which is what functions like SVN::Core:config_get_config() will
	   return.

	   It will return a _p_arp_hash_t scalar.  This is a temporary situation.  The return
	   value is not particular useful.  In the future, this value will be tied to the actual
	   hash used by the C API.

AUTHENTICATION PROVIDERS
       The following functions get authentication providers for you.  They come in two forms.
       Standard or File versions, which look for authentication information in the subversion
       configuration directory that was previously cached, or Prompt versions which call a
       subroutine to allow you to prompt the user for the information.

       The functions that return the svn_auth_provider_object_t for prompt style providers take a
       reference to a Perl subroutine to use for the callback.	The first parameter each of these
       subroutines receive is a credential object.  The subroutines return the response by
       setting members of that object.	Members may be set like so: $cred->username("breser");
       These functions and credential objects always have a may_save member which specifies if
       the authentication data will be cached.

       The providers are as follows:

	       NAME		   WHAT IT HANDLES
	       ----------------    ----------------------------------------
	       simple		   username and password pairs

	       username 	   username only

	       ssl_server_trust    server certificates and failures
				   authenticating them

	       ssl_client_cert	   client side certificate files

	       ssl_client_cert_pw  password for a client side certificate file.

       SVN::Client::get_simple_provider
	   Returns a simple provider that returns information from previously cached sessions.
	   Takes no parameters or one pool parameter.

       SVN::Client::get_simple_prompt_provider
	   Returns a simple provider that prompts the user via a callback.  Takes two or three
	   parameters, the first is the callback subroutine, the 2nd is the number of retries to
	   allow, the 3rd is optionally a pool.  The subroutine gets called with the following
	   parameters: a svn_auth_cred_simple_t object, a realm string, a default username,
	   may_save, and a pool.  The svn_auth_cred_simple has the following members: username,
	   password, and may_save.

       SVN::Client::get_username_provider
	   Returns a username provider that returns information from a previously cached
	   sessions.  Takes no parameters or one pool parameter.

       SVN::Client::get_username_prompt_provider
	   Returns a username provider that prompts the user via a callback.  Takes two or three
	   parameters, the first is the callback subroutine, the 2nd is the number of retries to
	   allow, the 3rd is optionally a pool.  The subroutine gets called with the following
	   parameters: a svn_auth_cred_username_t object, a realm string, a default username,
	   may_save, and a pool.  The svn_auth_cred_username has the following members: username
	   and may_save.

       SVN::Client::get_ssl_server_trust_file_provider
	   Returns a server trust provider that returns information from previously cached
	   sessions.  Takes no parameters or optionally a pool parameter.

       SVN::Client::get_ssl_server_trust_prompt_provider
	   Returns a server trust  provider that prompts the user via a callback. Takes one or
	   two parameters the callback subroutine and optionally a pool parameter.  The
	   subroutine gets called with the following parameters.  A
	   svn_auth_cred_ssl_server_trust_t object, a realm string, an integer specifying how the
	   certificate failed authentication, a svn_auth_ssl_server_cert_info_t object, may_save,
	   and a pool.	The svn_auth_cred_ssl_server_trust_t object has the following members:
	   may_save and accepted_failures.  The svn_auth_ssl_server_cert_info_t object has the
	   following members (and behaves just like cred objects though you can't modify it):
	   hostname, fingerprint, valid_from, valid_until, issuer_dname, ascii_cert.

	   The masks used for determining the failures are in SVN::Auth::SSL and are named:

	   $SVN::Auth::SSL::NOTYETVALID $SVN::Auth::SSL::EXPIRED $SVN::Auth::SSL::CNMISMATCH
	   $SVN::Auth::SSL::UNKNOWNCA $SVN::Auth::SSL::OTHER

	   You reply by setting the accepted_failures of the cred object with an integer of the
	   values for what you want to accept bitwise AND'd together.

       SVN::Client::get_ssl_client_cert_file_provider
	   Returns a client certificate provider that returns information from previously cached
	   sessions.  Takes no parameters or optionally a pool parameter.

       SVN::Client::get_ssl_client_cert_prompt_provider
	   Returns a client certificate provider that prompts the user via a callback.	Takes two
	   or three parameters: the first is the callback subroutine, the 2nd is the number of
	   retries to allow, the 3rd is optionally a pool parameter.  The subroutine gets called
	   with the following parameters.  A svn_auth_cred_ssl_client_cert object, a realm
	   string, may_save, and a pool.  The svn_auth_cred_ssl_client_cert the following
	   members: cert_file and may_save.

       SVN::Client::get_ssl_client_cert_pw_file_provider
	   Returns a client certificate password provider that returns information from
	   previously cached sessions.	Takes no parameters or optionally a pool parameter.

       SVN::Client::get_ssl_client_cert_pw_prompt_provider
	   Returns a client certificate password provider that prompts the user via a callback.
	   Takes two or three parameters, the first is the callback subroutine, the 2nd is the
	   number of retries to allow, the 3rd is optionally a pool parameter.	The subroutine
	   gets called with the following parameters.  A svn_auth_cred_ssl_client_cert_pw object,
	   a realm string, may_save, and a pool.  The svn_auth_cred_ssl_client_cert_pw has the
	   following members: password and may_save.

OBJECTS
       These are some of the object types that are returned from the methods and functions.
       Others are documented in SVN::Core and SVN::Wc.	If an object is not documented, it is
       more than likely opaque and not something you can do anything with, except pass to other
       functions that require such objects.

   svn_info_t
       $info->URL()
	       Where the item lives in the repository.

       $info->rev()
	       The revision of the object.  If path_or_url is a working-copy path, then this is
	       its current working revnum.  If path_or_url is a URL, then this is the repos
	       revision that path_or_url lives in.

       $info->kind()
	       The node's kind.

       $info->repos_root_URL()
	       The root URL of the repository.

       $info->repos_UUID()
	       The repository's UUID.

       $info->last_changed_rev()
	       The last revision in which this object changed.

       $info->last_changed_date()
	       The date of the last_changed_rev.

       $info->last_changed_author()
	       The author of the last_changed_rev.

       $info->lock()
	       An exclusive lock, if present.  Could be either local or remote.

       See SVN::Wc::svn_wc_entry_t for the rest of these.   svn_client.h indicates that these
       were copied from that struct and mean the same things.	They are also only useful when
       working with a WC.

       $info->has_wc_info()
       $info->schedule()
       $info->copyfrom_url()
       $info->copyfrom_rev()
       $info->text_time()
       $info->prop_time()
       $info->checksum()
       $info->conflict_old()
       $info->conflict_new()
       $info->conflict_wrk()
       $info->prejfile()

   svn_client_commit_item3_t
       $citem->path()
	       Absolute working-copy path of item.

       $citem->kind()
	       An integer representing the type of node it is (file/dir).  Can be one of the
	       following constants: $SVN::Node::none $SVN::Node::file $SVN::Node::dir
	       $SVN::Node::unknown

       $citem->url()
	       Commit URL for this item.

       $citem->revision()
	       Revision (copyfrom_rev if state_flags has IS_COPY set).

       $citem->copyform_url();
	       CopyFrom URL

       $citem->state_flags();
	       One of several state flags: $SVN::Client::COMMIT_ITEM_ADD
	       $SVN::Client::COMMIT_ITEM_DELETE $SVN::Client::COMMIT_ITEM_TEXT_MODS
	       $SVN::Client::COMMIT_ITEM_PROP_MODS $SVN::Client::COMMIT_ITEM_IS_COPY

       $citem>incoming_prop_changes()
	       A reference to an array of svn_prop_t objects representing changes to WC
	       properties.

       $citem>outgoing_prop_changes()
	       A reference to an array of svn_prop_t objects representing extra changes to
	       properties in the repository (which are not necessarily reflected by the WC).

   svn_client_commit_info_t
       $cinfo->revision()
	   Just committed revision.

       $cinfo->date()
	   Server-Side date of the commit as a string.

       $cinfo->author()
	   Author of the commit.

   svn_client_proplist_item_t
       $proplist->node_name()
	       The name of the node on which these properties are set.

       $proplist->prop_hash()
	       A reference to a hash of property names and values.

   svn_client_diff_summarize_kind_t - SVN::Summarize
       An enum of the following constants:

       $SVN::Client::Summarize::normal, $SVN::Client::Summarize::added,
       $SVN::Client::Summarize::modified, $SVN::Client::Summarize::deleted.

   svn_client_diff_summarize_t
       $diff_summarize->path()
	       Path relative to the target.  If the target is a file, path is the empty string.

       $diff_summarize->summarize_kind()
	       Change kind.

       $diff_summarize->prop_changed()
	       Properties changed?

       $diff_summarize->node_kind()
	       File or dir?

TODO
       * Better support for the config.

       * Unit tests for cleanup, diff, export, merge, move, relocate, resolved and switch.  This
       may reveal problems for using these methods as I haven't tested them yet that require
       deeper fixes.

AUTHORS
       Chia-liang Kao <clkao@clkao.org>

       Ben Reser <ben@reser.org>

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.

perl v5.16.3				    2011-07-16				native::Client(3)
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