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Automatically generate a migration for current changes in local database
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<?php | |
namespace App\Console\Commands; | |
use Illuminate\Support\Str; | |
use Illuminate\Console\Command; | |
use Illuminate\Support\Facades\DB; | |
class DatabaseDiffGenerator extends Command { | |
/** | |
* The name and signature of the console command. | |
* | |
* @var string | |
*/ | |
protected $signature = 'app:db-diff'; | |
/** | |
* The console command description. | |
* | |
* @var string | |
*/ | |
protected $description = 'Generate diff'; | |
/** | |
* Execute the console command. | |
*/ | |
public function handle() { | |
$db_file = './database/mysql.sql'; | |
$diff_up_file = sprintf('./database/diff_up_%s.sql', date('Y-m-d_H:i:s')); | |
$diff_down_file = sprintf('./database/diff_down_%s.sql', date('Y-m-d_H:i:s')); | |
$old_db = sprintf('%s_old_version', config('database.connections.mysql.database')); | |
DB::statement(sprintf('CREATE DATABASE IF NOT EXISTS %s CHARACTER SET %s COLLATE %s', $old_db, config('database.connections.mysql.charset'), config('database.connections.mysql.collation'))); | |
DB::connection()->getPdo()->exec("USE $old_db;"); | |
DB::unprepared(file_get_contents($db_file)); | |
$command1 = sprintf( | |
'/usr/local/bin/dbdiff -l drop mysql://%s:%s@%s/%s mysql://%s:%s@%s/%s > %s', | |
config('database.connections.mysql.username'), | |
config('database.connections.mysql.password'), | |
config('database.connections.mysql.host'), | |
$old_db, | |
config('database.connections.mysql.username'), | |
config('database.connections.mysql.password'), | |
config('database.connections.mysql.host'), | |
config('database.connections.mysql.database'), | |
$diff_up_file | |
); | |
exec($command1); | |
$command2 = sprintf( | |
'/usr/local/bin/dbdiff -l drop mysql://%s:%s@%s/%s mysql://%s:%s@%s/%s > %s', | |
config('database.connections.mysql.username'), | |
config('database.connections.mysql.password'), | |
config('database.connections.mysql.host'), | |
config('database.connections.mysql.database'), | |
config('database.connections.mysql.username'), | |
config('database.connections.mysql.password'), | |
config('database.connections.mysql.host'), | |
$old_db, | |
$diff_down_file | |
); | |
exec($command2); | |
$upContent = trim(file_get_contents($diff_up_file)); | |
dump($upContent); | |
$downContent = trim(file_get_contents($diff_down_file)); | |
dump($downContent); | |
if ($upContent == '') { | |
exec('rm ' . $diff_up_file); | |
exec('rm ' . $diff_down_file); | |
} else { | |
$upLines = explode("\n", $upContent); | |
$codeUp = ''; | |
foreach ($upLines as $upline) { | |
if (($upline != '') && !Str::startsWith($upline, '--')) { | |
$codeUp = $codeUp . '\DB::statement("' . str_replace('--', '', $upline) . '");' . "\n\t"; | |
} | |
} | |
$downLines = explode("\n", $downContent); | |
$codeDown = ''; | |
foreach ($downLines as $downline) { | |
if (($downline != '') && !Str::startsWith($downline, '--')) { | |
$codeDown = $codeDown . '\DB::statement("' . str_replace('--', '', $downline) . '");' . "\n\t"; | |
} | |
} | |
$code = <<<EOF | |
<?php | |
use Illuminate\Database\Migrations\Migration; | |
use Illuminate\Database\Schema\Blueprint; | |
use Illuminate\Support\Facades\Schema; | |
return new class extends Migration { | |
/** | |
* Run the migrations. | |
*/ | |
public function up(): void { | |
$codeUp | |
} | |
/** | |
* Reverse the migrations. | |
*/ | |
public function down(): void { | |
$codeDown | |
} | |
}; | |
EOF; | |
exec('rm ' . $diff_up_file); | |
exec('rm ' . $diff_down_file); | |
file_put_contents('database/migrations/' . date('Y_m_d_His') . '_diff.php', $code); | |
} | |
DB::statement(sprintf('DROP DATABASE %s', $old_db)); | |
$mysqldump = sprintf('mysqldump -h %s -u %s -p%s --no-data %s > ' . $db_file, config('database.connections.mysql.host'), config('database.connections.mysql.username'), config('database.connections.mysql.password'), config('database.connections.mysql.database')); | |
exec($mysqldump); | |
} | |
} |
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