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<?php
/**
* This script lets a command-line user start up the wiki engine and then poke
* about by issuing PHP commands directly.
*
* Unlike eg Python, you need to use a 'return' statement explicitly for the
* interactive shell to print out the value of the expression. Multiple lines
* are evaluated separately, so blocks need to be input without a line break.
* Fatal errors such as use of undeclared functions can kill the shell.
*
* To get decent line editing behavior, you should compile PHP with support
* for GNU readline (pass --with-readline to configure).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
*/
$optionsWithArgs = array( 'd' );
/** */
require_once __DIR__ . "/commandLine.inc";
if ( isset( $options['d'] ) ) {
$d = $options['d'];
if ( $d > 0 ) {
$wgDebugLogFile = '/dev/stdout';
}
if ( $d > 1 ) {
$lb = wfGetLB();
$serverCount = $lb->getServerCount();
for ( $i = 0; $i < $serverCount; $i++ ) {
$server = $lb->getServerInfo( $i );
$server['flags'] |= DBO_DEBUG;
$lb->setServerInfo( $i, $server );
}
}
if ( $d > 2 ) {
$wgDebugFunctionEntry = true;
}
}
$useReadline = function_exists( 'readline_add_history' )
&& Maintenance::posix_isatty( 0 /*STDIN*/ );
if ( $useReadline ) {
$historyFile = isset( $_ENV['HOME'] ) ?
"{$_ENV['HOME']}/.mweval_history" : "$IP/maintenance/.mweval_history";
readline_read_history( $historyFile );
}
$e = null; // PHP exception
while ( ( $line = Maintenance::readconsole() ) !== false ) {
if ( $e && !preg_match( '/^(exit|die);?$/', $line ) ) {
// Internal state may be corrupted or fatals may occur later due
// to some object not being set. Don't drop out of eval in case
// lines were being pasted in (which would then get dumped to the shell).
// Instead, just absorb the remaning commands. Let "exit" through per DWIM.
echo "Exception was thrown before; please restart eval.php\n";
continue;
}
if ( $useReadline ) {
readline_add_history( $line );
readline_write_history( $historyFile );
}
try {
$val = eval( $line . ";" );
} catch ( Exception $e ) {
echo "Caught exception " . get_class( $e ) .
": {$e->getMessage()}\n" . $e->getTraceAsString() . "\n";
continue;
}
if ( wfIsHHVM() || is_null( $val ) ) {
echo "\n";
} elseif ( is_string( $val ) || is_numeric( $val ) ) {
echo "$val\n";
} else {
var_dump( $val );
}
}
print "\n";
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