Add --diff option to dumpschema.php to run a (quickie text) diff betwen the theoretical and detected schemas for the given tables

This commit is contained in:
Brion Vibber 2010-10-07 16:49:15 -07:00
parent 312b87ea79
commit 82e9a2eee8

View File

@ -25,6 +25,7 @@ Attempt to pull a schema definition for a given table.
END_OF_CHECKSCHEMA_HELP;
$longoptions = array('diff');
require_once INSTALLDIR.'/scripts/commandline.inc';
function indentOptions($indent)
@ -79,17 +80,58 @@ function prettyDumpArray($arr, $key=null, $indent=0)
}
}
function dumpTable($tableName)
function getCoreSchema($tableName)
{
$schema = Schema::get();
$def = $schema->getTableDef($tableName);
$schema = array();
include INSTALLDIR . '/db/core.php';
return $schema[$tableName];
}
function dumpTable($tableName, $live)
{
if ($live) {
$schema = Schema::get();
$def = $schema->getTableDef($tableName);
} else {
// hack
$def = getCoreSchema($tableName);
}
prettyDumpArray($def, $tableName);
echo "\n";
}
function showDiff($a, $b)
{
$fnameA = tempnam(sys_get_temp_dir(), 'diff-a');
file_put_contents($fnameA, $a);
$fnameB = tempnam(sys_get_temp_dir(), 'diff-b');
file_put_contents($fnameB, $b);
$cmd = sprintf('diff -U 100 %s %s',
escapeshellarg($fnameA),
escapeshellarg($fnameB));
passthru($cmd);
unlink($fnameA);
unlink($fnameB);
}
if (count($args)) {
foreach ($args as $tableName) {
dumpTable($tableName);
if (have_option('diff')) {
ob_start();
dumpTable($tableName, false);
$defined = ob_get_clean();
ob_start();
dumpTable($tableName, true);
$detected = ob_get_clean();
showDiff($defined, $detected);
} else {
dumpTable($tableName, true);
}
}
} else {
show_help($helptext);