Menu Adam R Brown

WP hooks navigation: Home/browseActions indexFilters index

Source View: upgrader_source_selection

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
194           //Locate which directory to copy to the new folder, This is based on the actual folder holding the files.
195           if ( 1 == count($source_files) && $wp_filesystem->is_dir( trailingslashit($source) . $source_files[0] . '/') ) //Only one folder? Then we want its contents.
196                $source = trailingslashit($source) . trailingslashit($source_files[0]);
197           elseif ( count($source_files) == 0 )
198                return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], $this->strings['no_files'] ); //There are no files?
199           else //It's only a single file, the upgrader will use the foldername of this file as the destination folder. foldername is based on zip filename.
200                $source = trailingslashit($source);
201
202           //Hook ability to change the source file location..
203           $source = apply_filters('upgrader_source_selection', $source, $remote_source, $this);
204           if ( is_wp_error($source) )
205                return $source;
206
207           //Has the source location changed? If so, we need a new source_files list.
208           if ( $source !== $remote_source )
209                $source_files = array_keys( $wp_filesystem->dirlist($source) );
210
211           //Protection against deleting files in any important base directories.
212           if ( in_array( $destination, array(ABSPATH, WP_CONTENT_DIR, WP_PLUGIN_DIR, WP_CONTENT_DIR . '/themes') ) ) {