Edit File by line

&& $wp_filesystem->exists( $from . $root . 'wp-includes/version.php' )

[1000] Fix | Delete

) {

[1001] Fix | Delete

$distro = $root;

[1002] Fix | Delete

break;

[1003] Fix | Delete

}

[1004] Fix | Delete

}

[1005] Fix | Delete

[1006] Fix | Delete

if ( ! $distro ) {

[1007] Fix | Delete

$wp_filesystem->delete( $from, true );

[1008] Fix | Delete

[1009] Fix | Delete

return new WP_Error( 'insane_distro', __( 'The update could not be unpacked' ) );

[1010] Fix | Delete

}

[1011] Fix | Delete

[1012] Fix | Delete

[1013] Fix | Delete

* Import $wp_version, $required_php_version, and $required_mysql_version from the new version.

[1014] Fix | Delete

* DO NOT globalize any variables imported from `version-current.php` in this function.

[1015] Fix | Delete

[1016] Fix | Delete

* BC Note: $wp_filesystem->wp_content_dir() returned unslashed pre-2.8.

[1017] Fix | Delete

[1018] Fix | Delete

$versions_file = trailingslashit( $wp_filesystem->wp_content_dir() ) . 'upgrade/version-current.php';

[1019] Fix | Delete

[1020] Fix | Delete

if ( ! $wp_filesystem->copy( $from . $distro . 'wp-includes/version.php', $versions_file ) ) {

[1021] Fix | Delete

$wp_filesystem->delete( $from, true );

[1022] Fix | Delete

[1023] Fix | Delete

return new WP_Error(

[1024] Fix | Delete

'copy_failed_for_version_file',

[1025] Fix | Delete

__( 'The update cannot be installed because some files could not be copied. This is usually due to inconsistent file permissions.' ),

[1026] Fix | Delete

'wp-includes/version.php'

[1027] Fix | Delete

);

[1028] Fix | Delete

}

[1029] Fix | Delete

[1030] Fix | Delete

$wp_filesystem->chmod( $versions_file, FS_CHMOD_FILE );

[1031] Fix | Delete

[1032] Fix | Delete

[1033] Fix | Delete

* `wp_opcache_invalidate()` only exists in WordPress 5.5 or later,

[1034] Fix | Delete

* so don't run it when upgrading from older versions.

[1035] Fix | Delete

[1036] Fix | Delete

if ( function_exists( 'wp_opcache_invalidate' ) ) {

[1037] Fix | Delete

wp_opcache_invalidate( $versions_file );

[1038] Fix | Delete

}

[1039] Fix | Delete

[1040] Fix | Delete

require WP_CONTENT_DIR . '/upgrade/version-current.php';

[1041] Fix | Delete

$wp_filesystem->delete( $versions_file );

[1042] Fix | Delete

[1043] Fix | Delete

$php_version = PHP_VERSION;

[1044] Fix | Delete

$mysql_version = $wpdb->db_version();

[1045] Fix | Delete

$old_wp_version = $GLOBALS['wp_version']; // The version of WordPress we're updating from.

[1046] Fix | Delete

[1047] Fix | Delete

* Note: str_contains() is not used here, as this file is included

[1048] Fix | Delete

* when updating from older WordPress versions, in which case

[1049] Fix | Delete

* the polyfills from wp-includes/compat.php may not be available.

[1050] Fix | Delete

[1051] Fix | Delete

$development_build = ( false !== strpos( $old_wp_version . $wp_version, '-' ) ); // A dash in the version indicates a development release.

[1052] Fix | Delete

$php_compat = version_compare( $php_version, $required_php_version, '>=' );

[1053] Fix | Delete

[1054] Fix | Delete

if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) {

[1055] Fix | Delete

$mysql_compat = true;

[1056] Fix | Delete

} else {

[1057] Fix | Delete

$mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' );

[1058] Fix | Delete

}

[1059] Fix | Delete

[1060] Fix | Delete

if ( ! $mysql_compat || ! $php_compat ) {

[1061] Fix | Delete

$wp_filesystem->delete( $from, true );

[1062] Fix | Delete

}

[1063] Fix | Delete

[1064] Fix | Delete

$php_update_message = '';

[1065] Fix | Delete

[1066] Fix | Delete

if ( function_exists( 'wp_get_update_php_url' ) ) {

[1067] Fix | Delete

$php_update_message = '' . sprintf(

[1068] Fix | Delete

/* translators: %s: URL to Update PHP page. */

[1069] Fix | Delete

__( '<a href="%s">Learn more about updating PHP</a>.' ),

[1070] Fix | Delete

esc_url( wp_get_update_php_url() )

[1071] Fix | Delete

);

[1072] Fix | Delete

[1073] Fix | Delete

if ( function_exists( 'wp_get_update_php_annotation' ) ) {

[1074] Fix | Delete

$annotation = wp_get_update_php_annotation();

[1075] Fix | Delete

[1076] Fix | Delete

if ( $annotation ) {

[1077] Fix | Delete

$php_update_message .= '' . $annotation . '';

[1078] Fix | Delete

}

[1079] Fix | Delete

}

[1080] Fix | Delete

}

[1081] Fix | Delete

[1082] Fix | Delete

if ( ! $mysql_compat && ! $php_compat ) {

[1083] Fix | Delete

return new WP_Error(

[1084] Fix | Delete

'php_mysql_not_compatible',

[1085] Fix | Delete

sprintf(

[1086] Fix | Delete

/* translators: 1: WordPress version number, 2: Minimum required PHP version number, 3: Minimum required MySQL version number, 4: Current PHP version number, 5: Current MySQL version number. */

[1087] Fix | Delete

__( 'The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.' ),

[1088] Fix | Delete

$wp_version,

[1089] Fix | Delete

$required_php_version,

[1090] Fix | Delete

$required_mysql_version,

[1091] Fix | Delete

$php_version,

[1092] Fix | Delete

$mysql_version

[1093] Fix | Delete

) . $php_update_message

[1094] Fix | Delete

);

[1095] Fix | Delete

} elseif ( ! $php_compat ) {

[1096] Fix | Delete

return new WP_Error(

[1097] Fix | Delete

'php_not_compatible',

[1098] Fix | Delete

sprintf(

[1099] Fix | Delete

/* translators: 1: WordPress version number, 2: Minimum required PHP version number, 3: Current PHP version number. */

[1100] Fix | Delete

__( 'The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher. You are running version %3$s.' ),

[1101] Fix | Delete

$wp_version,

[1102] Fix | Delete

$required_php_version,

[1103] Fix | Delete

$php_version

[1104] Fix | Delete

) . $php_update_message

[1105] Fix | Delete

);

[1106] Fix | Delete

} elseif ( ! $mysql_compat ) {

[1107] Fix | Delete

return new WP_Error(

[1108] Fix | Delete

'mysql_not_compatible',

[1109] Fix | Delete

sprintf(

[1110] Fix | Delete

/* translators: 1: WordPress version number, 2: Minimum required MySQL version number, 3: Current MySQL version number. */

[1111] Fix | Delete

__( 'The update cannot be installed because WordPress %1$s requires MySQL version %2$s or higher. You are running version %3$s.' ),

[1112] Fix | Delete

$wp_version,

[1113] Fix | Delete

$required_mysql_version,

[1114] Fix | Delete

$mysql_version

[1115] Fix | Delete

)

[1116] Fix | Delete

);

[1117] Fix | Delete

}

[1118] Fix | Delete

[1119] Fix | Delete

// Add a warning when the JSON PHP extension is missing.

[1120] Fix | Delete

if ( ! extension_loaded( 'json' ) ) {

[1121] Fix | Delete

return new WP_Error(

[1122] Fix | Delete

'php_not_compatible_json',

[1123] Fix | Delete

sprintf(

[1124] Fix | Delete

/* translators: 1: WordPress version number, 2: The PHP extension name needed. */

[1125] Fix | Delete

__( 'The update cannot be installed because WordPress %1$s requires the %2$s PHP extension.' ),

[1126] Fix | Delete

$wp_version,

[1127] Fix | Delete

'JSON'

[1128] Fix | Delete

)

[1129] Fix | Delete

);

[1130] Fix | Delete

}

[1131] Fix | Delete

[1132] Fix | Delete

/** This filter is documented in wp-admin/includes/update-core.php */

[1133] Fix | Delete

apply_filters( 'update_feedback', __( 'Preparing to install the latest version…' ) );

[1134] Fix | Delete

[1135] Fix | Delete

[1136] Fix | Delete

* Don't copy wp-content, we'll deal with that below.

[1137] Fix | Delete

* We also copy version.php last so failed updates report their old version.

[1138] Fix | Delete

[1139] Fix | Delete

$skip = array( 'wp-content', 'wp-includes/version.php' );

[1140] Fix | Delete

$check_is_writable = array();

[1141] Fix | Delete

[1142] Fix | Delete

// Check to see which files don't really need updating - only available for 3.7 and higher.

[1143] Fix | Delete

if ( function_exists( 'get_core_checksums' ) ) {

[1144] Fix | Delete

// Find the local version of the working directory.

[1145] Fix | Delete

$working_dir_local = WP_CONTENT_DIR . '/upgrade/' . basename( $from ) . $distro;

[1146] Fix | Delete

[1147] Fix | Delete

$checksums = get_core_checksums( $wp_version, isset( $wp_local_package ) ? $wp_local_package : 'en_US' );

[1148] Fix | Delete

[1149] Fix | Delete

if ( is_array( $checksums ) && isset( $checksums[ $wp_version ] ) ) {

[1150] Fix | Delete

$checksums = $checksums[ $wp_version ]; // Compat code for 3.7-beta2.

[1151] Fix | Delete

}

[1152] Fix | Delete

[1153] Fix | Delete

if ( is_array( $checksums ) ) {

[1154] Fix | Delete

foreach ( $checksums as $file => $checksum ) {

[1155] Fix | Delete

[1156] Fix | Delete

* Note: str_starts_with() is not used here, as this file is included

[1157] Fix | Delete

* when updating from older WordPress versions, in which case

[1158] Fix | Delete

* the polyfills from wp-includes/compat.php may not be available.

[1159] Fix | Delete

[1160] Fix | Delete

if ( 'wp-content' === substr( $file, 0, 10 ) ) {

[1161] Fix | Delete

continue;

[1162] Fix | Delete

}

[1163] Fix | Delete

[1164] Fix | Delete

if ( ! file_exists( ABSPATH . $file ) ) {

[1165] Fix | Delete

continue;

[1166] Fix | Delete

}

[1167] Fix | Delete

[1168] Fix | Delete

if ( ! file_exists( $working_dir_local . $file ) ) {

[1169] Fix | Delete

continue;

[1170] Fix | Delete

}

[1171] Fix | Delete

[1172] Fix | Delete

if ( '.' === dirname( $file )

[1173] Fix | Delete

&& in_array( pathinfo( $file, PATHINFO_EXTENSION ), array( 'html', 'txt' ), true )

[1174] Fix | Delete

) {

[1175] Fix | Delete

continue;

[1176] Fix | Delete

}

[1177] Fix | Delete

[1178] Fix | Delete

if ( md5_file( ABSPATH . $file ) === $checksum ) {

[1179] Fix | Delete

$skip[] = $file;

[1180] Fix | Delete

} else {

[1181] Fix | Delete

$check_is_writable[ $file ] = ABSPATH . $file;

[1182] Fix | Delete

}

[1183] Fix | Delete

}

[1184] Fix | Delete

}

[1185] Fix | Delete

}

[1186] Fix | Delete

[1187] Fix | Delete

// If we're using the direct method, we can predict write failures that are due to permissions.

[1188] Fix | Delete

if ( $check_is_writable && 'direct' === $wp_filesystem->method ) {

[1189] Fix | Delete

$files_writable = array_filter( $check_is_writable, array( $wp_filesystem, 'is_writable' ) );

[1190] Fix | Delete

[1191] Fix | Delete

if ( $files_writable !== $check_is_writable ) {

[1192] Fix | Delete

$files_not_writable = array_diff_key( $check_is_writable, $files_writable );

[1193] Fix | Delete

[1194] Fix | Delete

foreach ( $files_not_writable as $relative_file_not_writable => $file_not_writable ) {

[1195] Fix | Delete

// If the writable check failed, chmod file to 0644 and try again, same as copy_dir().

[1196] Fix | Delete

$wp_filesystem->chmod( $file_not_writable, FS_CHMOD_FILE );

[1197] Fix | Delete

[1198] Fix | Delete

if ( $wp_filesystem->is_writable( $file_not_writable ) ) {

[1199] Fix | Delete

unset( $files_not_writable[ $relative_file_not_writable ] );

[1200] Fix | Delete

}

[1201] Fix | Delete

}

[1202] Fix | Delete

[1203] Fix | Delete

// Store package-relative paths (the key) of non-writable files in the WP_Error object.

[1204] Fix | Delete

$error_data = version_compare( $old_wp_version, '3.7-beta2', '>' ) ? array_keys( $files_not_writable ) : '';

[1205] Fix | Delete

[1206] Fix | Delete

if ( $files_not_writable ) {

[1207] Fix | Delete

return new WP_Error(

[1208] Fix | Delete

'files_not_writable',

[1209] Fix | Delete

__( 'The update cannot be installed because your site is unable to copy some files. This is usually due to inconsistent file permissions.' ),

[1210] Fix | Delete

implode( ', ', $error_data )

[1211] Fix | Delete

);

[1212] Fix | Delete

}

[1213] Fix | Delete

}

[1214] Fix | Delete

}

[1215] Fix | Delete

[1216] Fix | Delete

/** This filter is documented in wp-admin/includes/update-core.php */

[1217] Fix | Delete

apply_filters( 'update_feedback', __( 'Enabling Maintenance mode…' ) );

[1218] Fix | Delete

[1219] Fix | Delete

// Create maintenance file to signal that we are upgrading.

[1220] Fix | Delete

$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';

[1221] Fix | Delete

$maintenance_file = $to . '.maintenance';

[1222] Fix | Delete

$wp_filesystem->delete( $maintenance_file );

[1223] Fix | Delete

$wp_filesystem->put_contents( $maintenance_file, $maintenance_string, FS_CHMOD_FILE );

[1224] Fix | Delete

[1225] Fix | Delete

/** This filter is documented in wp-admin/includes/update-core.php */

[1226] Fix | Delete

apply_filters( 'update_feedback', __( 'Copying the required files…' ) );

[1227] Fix | Delete

[1228] Fix | Delete

// Copy new versions of WP files into place.

[1229] Fix | Delete

$result = copy_dir( $from . $distro, $to, $skip );

[1230] Fix | Delete

[1231] Fix | Delete

if ( is_wp_error( $result ) ) {

[1232] Fix | Delete

$result = new WP_Error(

[1233] Fix | Delete

$result->get_error_code(),

[1234] Fix | Delete

$result->get_error_message(),

[1235] Fix | Delete

substr( $result->get_error_data(), strlen( $to ) )

[1236] Fix | Delete

);

[1237] Fix | Delete

}

[1238] Fix | Delete

[1239] Fix | Delete

// Since we know the core files have copied over, we can now copy the version file.

[1240] Fix | Delete

if ( ! is_wp_error( $result ) ) {

[1241] Fix | Delete

if ( ! $wp_filesystem->copy( $from . $distro . 'wp-includes/version.php', $to . 'wp-includes/version.php', true /* overwrite */ ) ) {

[1242] Fix | Delete

$wp_filesystem->delete( $from, true );

[1243] Fix | Delete

$result = new WP_Error(

[1244] Fix | Delete

'copy_failed_for_version_file',

[1245] Fix | Delete

__( 'The update cannot be installed because your site is unable to copy some files. This is usually due to inconsistent file permissions.' ),

[1246] Fix | Delete

'wp-includes/version.php'

[1247] Fix | Delete

);

[1248] Fix | Delete

}

[1249] Fix | Delete

[1250] Fix | Delete

$wp_filesystem->chmod( $to . 'wp-includes/version.php', FS_CHMOD_FILE );

[1251] Fix | Delete

[1252] Fix | Delete

[1253] Fix | Delete

* `wp_opcache_invalidate()` only exists in WordPress 5.5 or later,

[1254] Fix | Delete

* so don't run it when upgrading from older versions.

[1255] Fix | Delete

[1256] Fix | Delete

if ( function_exists( 'wp_opcache_invalidate' ) ) {

[1257] Fix | Delete

wp_opcache_invalidate( $to . 'wp-includes/version.php' );

[1258] Fix | Delete

}

[1259] Fix | Delete

}

[1260] Fix | Delete

[1261] Fix | Delete

// Check to make sure everything copied correctly, ignoring the contents of wp-content.

[1262] Fix | Delete

$skip = array( 'wp-content' );

[1263] Fix | Delete

$failed = array();

[1264] Fix | Delete

[1265] Fix | Delete

if ( isset( $checksums ) && is_array( $checksums ) ) {

[1266] Fix | Delete

foreach ( $checksums as $file => $checksum ) {

[1267] Fix | Delete

[1268] Fix | Delete

* Note: str_starts_with() is not used here, as this file is included

[1269] Fix | Delete

* when updating from older WordPress versions, in which case

[1270] Fix | Delete

* the polyfills from wp-includes/compat.php may not be available.

[1271] Fix | Delete

[1272] Fix | Delete

if ( 'wp-content' === substr( $file, 0, 10 ) ) {

[1273] Fix | Delete

continue;

[1274] Fix | Delete

}

[1275] Fix | Delete

[1276] Fix | Delete

if ( ! file_exists( $working_dir_local . $file ) ) {

[1277] Fix | Delete

continue;

[1278] Fix | Delete

}

[1279] Fix | Delete

[1280] Fix | Delete

if ( '.' === dirname( $file )

[1281] Fix | Delete

&& in_array( pathinfo( $file, PATHINFO_EXTENSION ), array( 'html', 'txt' ), true )

[1282] Fix | Delete

) {

[1283] Fix | Delete

$skip[] = $file;

[1284] Fix | Delete

continue;

[1285] Fix | Delete

}

[1286] Fix | Delete

[1287] Fix | Delete

if ( file_exists( ABSPATH . $file ) && md5_file( ABSPATH . $file ) === $checksum ) {

[1288] Fix | Delete

$skip[] = $file;

[1289] Fix | Delete

} else {

[1290] Fix | Delete

$failed[] = $file;

[1291] Fix | Delete

}

[1292] Fix | Delete

}

[1293] Fix | Delete

}

[1294] Fix | Delete

[1295] Fix | Delete

// Some files didn't copy properly.

[1296] Fix | Delete

if ( ! empty( $failed ) ) {

[1297] Fix | Delete

$total_size = 0;

[1298] Fix | Delete

[1299] Fix | Delete

foreach ( $failed as $file ) {

[1300] Fix | Delete

if ( file_exists( $working_dir_local . $file ) ) {

[1301] Fix | Delete

$total_size += filesize( $working_dir_local . $file );

[1302] Fix | Delete

}

[1303] Fix | Delete

}

[1304] Fix | Delete

[1305] Fix | Delete

[1306] Fix | Delete

* If we don't have enough free space, it isn't worth trying again.

[1307] Fix | Delete

* Unlikely to be hit due to the check in unzip_file().

[1308] Fix | Delete

[1309] Fix | Delete

$available_space = function_exists( 'disk_free_space' ) ? @disk_free_space( ABSPATH ) : false;

[1310] Fix | Delete

[1311] Fix | Delete

if ( $available_space && $total_size >= $available_space ) {

[1312] Fix | Delete

$result = new WP_Error( 'disk_full', __( 'There is not enough free disk space to complete the update.' ) );

[1313] Fix | Delete

} else {

[1314] Fix | Delete

$result = copy_dir( $from . $distro, $to, $skip );

[1315] Fix | Delete

[1316] Fix | Delete

if ( is_wp_error( $result ) ) {

[1317] Fix | Delete

$result = new WP_Error(

[1318] Fix | Delete

$result->get_error_code() . '_retry',

[1319] Fix | Delete

$result->get_error_message(),

[1320] Fix | Delete

substr( $result->get_error_data(), strlen( $to ) )

[1321] Fix | Delete

);

[1322] Fix | Delete

}

[1323] Fix | Delete

}

[1324] Fix | Delete

}

[1325] Fix | Delete

[1326] Fix | Delete

[1327] Fix | Delete

* Custom content directory needs updating now.

[1328] Fix | Delete

* Copy languages.

[1329] Fix | Delete

[1330] Fix | Delete

if ( ! is_wp_error( $result ) && $wp_filesystem->is_dir( $from . $distro . 'wp-content/languages' ) ) {

[1331] Fix | Delete

if ( WP_LANG_DIR !== ABSPATH . WPINC . '/languages' || @is_dir( WP_LANG_DIR ) ) {

[1332] Fix | Delete

$lang_dir = WP_LANG_DIR;

[1333] Fix | Delete

} else {

[1334] Fix | Delete

$lang_dir = WP_CONTENT_DIR . '/languages';

[1335] Fix | Delete

}

[1336] Fix | Delete

[1337] Fix | Delete

* Note: str_starts_with() is not used here, as this file is included

[1338] Fix | Delete

* when updating from older WordPress versions, in which case

[1339] Fix | Delete

* the polyfills from wp-includes/compat.php may not be available.

[1340] Fix | Delete

[1341] Fix | Delete

// Check if the language directory exists first.

[1342] Fix | Delete

if ( ! @is_dir( $lang_dir ) && 0 === strpos( $lang_dir, ABSPATH ) ) {

[1343] Fix | Delete

// If it's within the ABSPATH we can handle it here, otherwise they're out of luck.

[1344] Fix | Delete

$wp_filesystem->mkdir( $to . str_replace( ABSPATH, '', $lang_dir ), FS_CHMOD_DIR );

[1345] Fix | Delete

clearstatcache(); // For FTP, need to clear the stat cache.

[1346] Fix | Delete

}

[1347] Fix | Delete

[1348] Fix | Delete

if ( @is_dir( $lang_dir ) ) {

[1349] Fix | Delete

$wp_lang_dir = $wp_filesystem->find_folder( $lang_dir );

[1350] Fix | Delete

[1351] Fix | Delete

if ( $wp_lang_dir ) {

[1352] Fix | Delete

$result = copy_dir( $from . $distro . 'wp-content/languages/', $wp_lang_dir );

[1353] Fix | Delete

[1354] Fix | Delete

if ( is_wp_error( $result ) ) {

[1355] Fix | Delete

$result = new WP_Error(

[1356] Fix | Delete

$result->get_error_code() . '_languages',

[1357] Fix | Delete

$result->get_error_message(),

[1358] Fix | Delete

substr( $result->get_error_data(), strlen( $wp_lang_dir ) )

[1359] Fix | Delete

);

[1360] Fix | Delete

}

[1361] Fix | Delete

}

[1362] Fix | Delete

}

[1363] Fix | Delete

}

[1364] Fix | Delete

[1365] Fix | Delete

/** This filter is documented in wp-admin/includes/update-core.php */

[1366] Fix | Delete

apply_filters( 'update_feedback', __( 'Disabling Maintenance mode…' ) );

[1367] Fix | Delete

[1368] Fix | Delete

// Remove maintenance file, we're done with potential site-breaking changes.

[1369] Fix | Delete

$wp_filesystem->delete( $maintenance_file );

[1370] Fix | Delete

[1371] Fix | Delete

[1372] Fix | Delete

* 3.5 -> 3.5+ - an empty twentytwelve directory was created upon upgrade to 3.5 for some users,

[1373] Fix | Delete

* preventing installation of Twenty Twelve.

[1374] Fix | Delete

[1375] Fix | Delete

if ( '3.5' === $old_wp_version ) {

[1376] Fix | Delete

if ( is_dir( WP_CONTENT_DIR . '/themes/twentytwelve' )

[1377] Fix | Delete

&& ! file_exists( WP_CONTENT_DIR . '/themes/twentytwelve/style.css' )

[1378] Fix | Delete

) {

[1379] Fix | Delete

$wp_filesystem->delete( $wp_filesystem->wp_themes_dir() . 'twentytwelve/' );

[1380] Fix | Delete

}

[1381] Fix | Delete

}

[1382] Fix | Delete

[1383] Fix | Delete

[1384] Fix | Delete

* Copy new bundled plugins & themes.

[1385] Fix | Delete

* This gives us the ability to install new plugins & themes bundled with

[1386] Fix | Delete

* future versions of WordPress whilst avoiding the re-install upon upgrade issue.

[1387] Fix | Delete

* $development_build controls us overwriting bundled themes and plugins when a non-stable release is being updated.

[1388] Fix | Delete

[1389] Fix | Delete

if ( ! is_wp_error( $result )

[1390] Fix | Delete

&& ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || ! CORE_UPGRADE_SKIP_NEW_BUNDLED )

[1391] Fix | Delete

) {

[1392] Fix | Delete

foreach ( (array) $_new_bundled_files as $file => $introduced_version ) {

[1393] Fix | Delete

// If a $development_build or if $introduced version is greater than what the site was previously running.

[1394] Fix | Delete

if ( $development_build || version_compare( $introduced_version, $old_wp_version, '>' ) ) {

[1395] Fix | Delete

$directory = ( '/' === $file[ strlen( $file ) - 1 ] );

[1396] Fix | Delete

[1397] Fix | Delete

list( $type, $filename ) = explode( '/', $file, 2 );

[1398] Fix | Delete

[1399] Fix | Delete

// Check to see if the bundled items exist before attempting to copy them.

[1400] Fix | Delete

if ( ! $wp_filesystem->exists( $from . $distro . 'wp-content/' . $file ) ) {

[1401] Fix | Delete

continue;

[1402] Fix | Delete

}

[1403] Fix | Delete

[1404] Fix | Delete

if ( 'plugins' === $type ) {

[1405] Fix | Delete

$dest = $wp_filesystem->wp_plugins_dir();

[1406] Fix | Delete

} elseif ( 'themes' === $type ) {

[1407] Fix | Delete

// Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2.

[1408] Fix | Delete

$dest = trailingslashit( $wp_filesystem->wp_themes_dir() );

[1409] Fix | Delete

} else {

[1410] Fix | Delete

continue;

[1411] Fix | Delete

}

[1412] Fix | Delete

[1413] Fix | Delete

if ( ! $directory ) {

[1414] Fix | Delete

if ( ! $development_build && $wp_filesystem->exists( $dest . $filename ) ) {

[1415] Fix | Delete

continue;

[1416] Fix | Delete

}

[1417] Fix | Delete

[1418] Fix | Delete

if ( ! $wp_filesystem->copy( $from . $distro . 'wp-content/' . $file, $dest . $filename, FS_CHMOD_FILE ) ) {

[1419] Fix | Delete

$result = new WP_Error( "copy_failed_for_new_bundled_$type", __( 'Could not copy file.' ), $dest . $filename );

[1420] Fix | Delete

}

[1421] Fix | Delete

} else {

[1422] Fix | Delete

if ( ! $development_build && $wp_filesystem->is_dir( $dest . $filename ) ) {

[1423] Fix | Delete

continue;

[1424] Fix | Delete

}

[1425] Fix | Delete

[1426] Fix | Delete

$wp_filesystem->mkdir( $dest . $filename, FS_CHMOD_DIR );

[1427] Fix | Delete

$_result = copy_dir( $from . $distro . 'wp-content/' . $file, $dest . $filename );

[1428] Fix | Delete

[1429] Fix | Delete

[1430] Fix | Delete

* If an error occurs partway through this final step,

[1431] Fix | Delete

* keep the error flowing through, but keep the process going.

[1432] Fix | Delete

[1433] Fix | Delete

if ( is_wp_error( $_result ) ) {

[1434] Fix | Delete

if ( ! is_wp_error( $result ) ) {

[1435] Fix | Delete

$result = new WP_Error();

[1436] Fix | Delete

}

[1437] Fix | Delete

[1438] Fix | Delete

$result->add(

[1439] Fix | Delete

$_result->get_error_code() . "_$type",

[1440] Fix | Delete

$_result->get_error_message(),

[1441] Fix | Delete

substr( $_result->get_error_data(), strlen( $dest ) )

[1442] Fix | Delete

);

[1443] Fix | Delete

}

[1444] Fix | Delete

}

[1445] Fix | Delete

}

[1446] Fix | Delete

} // End foreach.

[1447] Fix | Delete

}

[1448] Fix | Delete

[1449] Fix | Delete

// Handle $result error from the above blocks.

[1450] Fix | Delete

if ( is_wp_error( $result ) ) {

[1451] Fix | Delete

$wp_filesystem->delete( $from, true );

[1452] Fix | Delete

[1453] Fix | Delete

return $result;

[1454] Fix | Delete

}

[1455] Fix | Delete

[1456] Fix | Delete

// Remove old files.

[1457] Fix | Delete

foreach ( $_old_files as $old_file ) {

[1458] Fix | Delete

$old_file = $to . $old_file;

[1459] Fix | Delete

[1460] Fix | Delete

if ( ! $wp_filesystem->exists( $old_file ) ) {

[1461] Fix | Delete

continue;

[1462] Fix | Delete

}

[1463] Fix | Delete

[1464] Fix | Delete

// If the file isn't deleted, try writing an empty string to the file instead.

[1465] Fix | Delete

if ( ! $wp_filesystem->delete( $old_file, true ) && $wp_filesystem->is_file( $old_file ) ) {

[1466] Fix | Delete

$wp_filesystem->put_contents( $old_file, '' );

[1467] Fix | Delete

}

[1468] Fix | Delete

}

[1469] Fix | Delete

[1470] Fix | Delete

// Remove any Genericons example.html's from the filesystem.

[1471] Fix | Delete

_upgrade_422_remove_genericons();

[1472] Fix | Delete

[1473] Fix | Delete

// Deactivate the REST API plugin if its version is 2.0 Beta 4 or lower.

[1474] Fix | Delete

_upgrade_440_force_deactivate_incompatible_plugins();

[1475] Fix | Delete

[1476] Fix | Delete

// Deactivate incompatible plugins.

[1477] Fix | Delete

_upgrade_core_deactivate_incompatible_plugins();

[1478] Fix | Delete

[1479] Fix | Delete

// Upgrade DB with separate request.

[1480] Fix | Delete

/** This filter is documented in wp-admin/includes/update-core.php */

[1481] Fix | Delete

apply_filters( 'update_feedback', __( 'Upgrading database…' ) );

[1482] Fix | Delete

[1483] Fix | Delete

$db_upgrade_url = admin_url( 'upgrade.php?step=upgrade_db' );

[1484] Fix | Delete

wp_remote_post( $db_upgrade_url, array( 'timeout' => 60 ) );

[1485] Fix | Delete

[1486] Fix | Delete

// Clear the cache to prevent an update_option() from saving a stale db_version to the cache.

[1487] Fix | Delete

wp_cache_flush();

[1488] Fix | Delete

// Not all cache back ends listen to 'flush'.

[1489] Fix | Delete

wp_cache_delete( 'alloptions', 'options' );

[1490] Fix | Delete

[1491] Fix | Delete

// Remove working directory.

[1492] Fix | Delete

$wp_filesystem->delete( $from, true );

[1493] Fix | Delete

[1494] Fix | Delete

// Force refresh of update information.

[1495] Fix | Delete

if ( function_exists( 'delete_site_transient' ) ) {

[1496] Fix | Delete

delete_site_transient( 'update_core' );

[1497] Fix | Delete

} else {

[1498] Fix | Delete

delete_option( 'update_core' );

[1499] Fix | Delete

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