Documentation PHP

svn_diff

(PECL svn:0.1-0.2)

svn_diff — Recursively diffs two paths

Description

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

Recursively diffs two paths, path1 and path2 .

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

Liste de paramètres

path1

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

Note: Les chemins relatifs peuvent être résolus si le dossier de travail courant est l'un de ceux qui contiennent le binaire PHP. Pour utiliser le dossier de travail, utilisez la fonction realpath(), ou l'instruction dirname(__FILE__).

Avertissement

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.

Valeurs de retour

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.

Notes

Avertissement

Cette fonction est EXPERIMENTALE. Cela signifie que le comportement de cette fonction, son nom et, concrètement, TOUT ce qui est documenté ici peut changer dans un futur proche, SANS PREAVIS ! Soyez-en conscient, et utilisez cette fonction à vos risques et périls.

Exemples

Exemple #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);
?>

L'exemple ci-dessus va afficher :

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

Exemple #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);
}
?>

Exemple #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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