Don't hardcode MySQL command names

The compatibility links MariaDB provides for MySQL commands are
deprecated and will be removed in the future. We should use the MariaDB
command name if that is the current MySQL provider.

Fixes #271

Author: mrsdizzie

features/db-check.feature

@@ -128,19 +128,11 @@ Feature: Check the database
     Given a WP install
 
     When I try `wp db check --defaults --debug`
-    Then STDERR should contain:
-      """
-      Debug (db): Running shell command: /usr/bin/env mysqlcheck %s
-      """
+    Then STDERR should match #Debug \(db\): Running shell command: /usr/bin/env (mysqlcheck|mariadb-check) %s#
 
     When I try `wp db check --debug`
-    Then STDERR should contain:
-      """
-      Debug (db): Running shell command: /usr/bin/env mysqlcheck --no-defaults %s
-      """
+    Then STDERR should match #Debug \(db\): Running shell command: /usr/bin/env (mysqlcheck|mariadb-check) --no-defaults %s#
 
     When I try `wp db check --no-defaults --debug`
-    Then STDERR should contain:
-      """
-      Debug (db): Running shell command: /usr/bin/env mysqlcheck --no-defaults %s
-      """
+    Then STDERR should match #Debug \(db\): Running shell command: /usr/bin/env (mysqlcheck|mariadb-check) --no-defaults %s#
+

features/db-export.feature

@@ -82,19 +82,10 @@ Feature: Export a WordPress database
     Given a WP install
 
     When I try `wp db export --defaults --debug`
-    Then STDERR should contain:
-      """
-      Debug (db): Running initial shell command: /usr/bin/env mysqldump
-      """
+    Then STDERR should match #Debug \(db\): Running initial shell command: /usr/bin/env (mysqldump|mariadb-dump)#
 
     When I try `wp db export --debug`
-    Then STDERR should contain:
-      """
-      Debug (db): Running initial shell command: /usr/bin/env mysqldump --no-defaults
-      """
+    Then STDERR should match #Debug \(db\): Running initial shell command: /usr/bin/env (mysqldump|mariadb-dump) --no-defaults#
 
     When I try `wp db export --no-defaults --debug`
-    Then STDERR should contain:
-      """
-      Debug (db): Running initial shell command: /usr/bin/env mysqldump --no-defaults
-      """
+    Then STDERR should match #Debug \(db\): Running initial shell command: /usr/bin/env (mysqldump|mariadb-dump) --no-defaults#

src/DB_Command.php

@@ -250,7 +250,12 @@ public function clean( $_, $assoc_args ) {
 	 */
 	public function check( $_, $assoc_args ) {
 
-		$command = sprintf( '/usr/bin/env mysqlcheck%s %s', $this->get_defaults_flag_string( $assoc_args ), '%s' );
+		$command = sprintf(
+			'/usr/bin/env %s%s %s',
+			$this->get_check_command(),
+			$this->get_defaults_flag_string( $assoc_args ),
+			'%s'
+		);
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 
 		$assoc_args['check'] = true;
@@ -293,8 +298,12 @@ public function check( $_, $assoc_args ) {
 	 *     Success: Database optimized.
 	 */
 	public function optimize( $_, $assoc_args ) {
-
-		$command = sprintf( '/usr/bin/env mysqlcheck%s %s', $this->get_defaults_flag_string( $assoc_args ), '%s' );
+		$command = sprintf(
+			'/usr/bin/env %s%s %s',
+			$this->get_check_command(),
+			$this->get_defaults_flag_string( $assoc_args ),
+			'%s'
+		);
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 
 		$assoc_args['optimize'] = true;
@@ -337,8 +346,12 @@ public function optimize( $_, $assoc_args ) {
 	 *     Success: Database repaired.
 	 */
 	public function repair( $_, $assoc_args ) {
-
-		$command = sprintf( '/usr/bin/env mysqlcheck%s %s', $this->get_defaults_flag_string( $assoc_args ), '%s' );
+		$command = sprintf(
+			'/usr/bin/env %s%s %s',
+			$this->get_check_command(),
+			$this->get_defaults_flag_string( $assoc_args ),
+			'%s'
+		);
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 
 		$assoc_args['repair'] = true;
@@ -611,7 +624,7 @@ public function export( $args, $assoc_args ) {
 			$assoc_args['result-file'] = $result_file;
 		}
 
-		$mysqldump_binary = Utils\force_env_on_nix_systems( 'mysqldump' );
+		$mysqldump_binary = Utils\force_env_on_nix_systems( $this->get_dump_command() );
 
 		$support_column_statistics = exec( $mysqldump_binary . ' --help | grep "column-statistics"' );
 
@@ -2152,4 +2165,22 @@ protected function get_current_sql_modes( $assoc_args ) {
 
 		return $modes;
 	}
+
+	/**
+	 * Returns the correct `check` command based on the detected database type.
+	 *
+	 * @return string The appropriate check command.
+	 */
+	private function get_check_command() {
+		return ( strpos( Utils\get_mysql_version(), 'MariaDB' ) !== false ) ? 'mariadb-check' : 'mysqlcheck';
+	}
+
+	/**
+	 * Returns the correct `dump` command based on the detected database type.
+	 *
+	 * @return string The appropriate dump command.
+	 */
+	private function get_dump_command() {
+		return ( strpos( Utils\get_mysql_version(), 'MariaDB' ) !== false ) ? 'mariadb-dump' : 'mysqldump';
+	}
 }