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svn_diff

(PECL svn:0.1-0.2)

svn_diff — Recursively diffs two paths

Описание

array svn_diff ( string $path1 , int $rev1 , string $path2 , int $rev2 )

Recursively diffs two paths, path1 and path2 .

Замечание: This is not a general-purpose diff utility. Only local files that are versioned may be diffed: other files will fail.

Список параметров

path1

First path to diff. This can be a URL to a file/directory in an SVN repository or a local file/directory path.

Замечание: Relative paths will be resolved as if the current working directory was the one that contains the PHP binary. To use the calling script's working directory, use realpath() or dirname(__FILE__).

Внимание

If a local file path has only backslashes and no forward slashes, this extension will fail to find the path. Always replace all backslashes with forward slashes when using this function.

rev1

First path's revision number. Use SVN_REVISON_HEAD to specify the most recent revision.

path2

Second path to diff. See path1 for description.

rev2

Second path's revision number. See rev2 for description.

Возвращаемые значения

Returns an array-list consisting of two streams: the first is the diff output and the second contains error stream output. The streams can be read using fread(). Returns FALSE or NULL on error.

The diff output will, by default, be in the form of Subversion's custom unified diff format, but an » external diff engine may be used depending on Subversion's configuration.

Примечания

Внимание

Эта функция является ЭКСПЕРИМЕНТАЛЬНОЙ. Поведение этой функции, ее имя и относящаяся к ней документация могут измениться в последующих версиях PHP без уведомления. Используйте эту функцию на свой страх и риск.

Примеры

Пример #1 Basic example

This example demonstrates the basic usage of this function, and the retrieval of contents from the stream:

<?php
list($diff$errors) = svn_diff(
    
'http://www.example.com/svnroot/trunk/foo'SVN_REVISION_HEAD,
    
'http://www.example.com/svnroot/branches/dev/foo'SVN_REVISION_HEAD
);
if (!
$diff) exit;
$contents '';
while (!
feof($diff)) {
  
$contents .= fread($diff8192);
}
fclose($diff);
fclose($errors);
var_dump($contents);
?>

Результат выполнения данного примера:

Index: http://www.example.com/svnroot/trunk/foo
===================================================================
--- http://www.example.com/svnroot/trunk/foo        (.../foo) (revision 23)
+++ http://www.example.com/svnroot/branches/dev/foo (.../foo) (revision 27)
 // further diff output

Пример #2 Diffing two revisions of a repository path

This example implements a wrapper function that allows a user to easily diff two revisions of the same item using an external repository path (the default syntax is somewhat verbose):

<?php
function svn_diff_same_item($path$rev1$rev2) {
    return 
svn_diff($path$rev1$path$rev2);
}
?>

Пример #3 Portably diffing two local files

This example implements a wrapper function that portably diffs two local files, compensating for the realpath() fix and the backslashes bug:

<?php
function svn_diff_local($path1$rev1$path2$rev2) {
    
$path1 str_replace('\\''/'realpath($path1));
    
$path2 str_replace('\\''/'realpath($path2));
    return 
svn_diff($path1$rev1$path2$rev2);
}
?>

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