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<title>[52337] trunk/src/wp-admin/includes/class-wp-upgrader.php: Upgrade/Install: Fix moving plugins folder in `WP_Upgrader:: move_to_temp_backup_dir()`.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/52337">52337</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/52337","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>hellofromTonya</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-12-07 16:49:22 +0000 (Tue, 07 Dec 2021)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Upgrade/Install: Fix moving plugins folder in `WP_Upgrader:: move_to_temp_backup_dir()`.
<a href="https://core.trac.wordpress.org/changeset/51815">[51815]</a> introduced the creation of a temporary backup of plugins before updating.
The `move()` (and later, `move_dir()`) call) uses a `$src` parameter.
For Hello Dolly, this is `<path>/wp-contents/plugins/.` (note the period at the end).
For users on Linux and Mac, this doesn't appear to cause any problems.
However, on Windows, the move causes the plugins folder to be moved which then causes a failure when attempting to call `mkdir()`.
This commit skips any plugin whose slug is `'.'` as this slug results in the `$src` value ending in a period.
Follow-up to <a href="https://core.trac.wordpress.org/changeset/51815">[51815]</a>.
Props costdev, boniu91, hellofromTonya.
Fixes <a href="https://core.trac.wordpress.org/ticket/54543">#54543</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpadminincludesclasswpupgraderphp">trunk/src/wp-admin/includes/class-wp-upgrader.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpadminincludesclasswpupgraderphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/class-wp-upgrader.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/class-wp-upgrader.php 2021-12-07 16:38:47 UTC (rev 52336)
+++ trunk/src/wp-admin/includes/class-wp-upgrader.php 2021-12-07 16:49:22 UTC (rev 52337)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1025,6 +1025,17 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return false;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Skip any plugin that has "." as its slug.
+ * A slug of "." will result in a `$src` value ending in a period.
+ *
+ * On Windows, this will cause the 'plugins' folder to be moved,
+ * and will cause a failure when attempting to call `mkdir()`.
+ */
+ if ( '.' === $args['slug'] ) {
+ return false;
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $dest_dir = $wp_filesystem->wp_content_dir() . 'upgrade/temp-backup/';
</span><span class="cx" style="display: block; padding: 0 10px"> // Create the temp-backup directory if it doesn't exist.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( (
</span></span></pre>
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