Update install-wp-tests script

Author: swissspidy

templates/install-wp-tests.sh

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+# See https://raw.githubusercontent.com/wp-cli/scaffold-command/master/templates/install-wp-tests.sh
+
 if [ $# -lt 3 ]; then
 	echo "usage: $0 <db-name> <db-user> <db-pass> [db-host] [wp-version] [skip-database-creation]"
 	exit 1
@@ -66,15 +68,15 @@ set -ex
 
 install_wp() {
 
-	if [ -d $WP_CORE_DIR ]; then
+	if [ -f $WP_CORE_FILE ]; then
 		return;
 	fi
 
+	rm -rf $WP_CORE_DIR
 	mkdir -p $WP_CORE_DIR
 
 	if [[ $WP_VERSION == 'nightly' || $WP_VERSION == 'trunk' ]]; then
 		mkdir -p $TMPDIR/wordpress-trunk
-		rm -rf $TMPDIR/wordpress-trunk/*
         check_svn_installed
 		svn export --quiet https://core.svn.wordpress.org/trunk $TMPDIR/wordpress-trunk/wordpress
 		mv $TMPDIR/wordpress-trunk/wordpress/* $WP_CORE_DIR
@@ -103,8 +105,6 @@ install_wp() {
 		download https://wordpress.org/${ARCHIVE_NAME}.tar.gz  $TMPDIR/wordpress.tar.gz
 		tar --strip-components=1 -zxmf $TMPDIR/wordpress.tar.gz -C $WP_CORE_DIR
 	fi
-
-	download https://raw.githubusercontent.com/markoheijnen/wp-mysqli/master/db.php $WP_CORE_DIR/wp-content/db.php
 }
 
 install_test_suite() {
@@ -115,11 +115,11 @@ install_test_suite() {
 		local ioption='-i'
 	fi
 
-	# set up testing suite if it doesn't yet exist
-	if [ ! -d $WP_TESTS_DIR ]; then
+	# set up testing suite if it doesn't yet exist or only partially exists
+	if [ ! -f $WP_TESTS_FILE ]; then
 		# set up testing suite
+		rm -rf $WP_TESTS_DIR
 		mkdir -p $WP_TESTS_DIR
-		rm -rf $WP_TESTS_DIR/{includes,data}
         check_svn_installed
 		svn export --quiet --ignore-externals https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/includes/ $WP_TESTS_DIR/includes
 		svn export --quiet --ignore-externals https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/data/ $WP_TESTS_DIR/data
@@ -130,7 +130,6 @@ install_test_suite() {
 		# remove all forward slashes in the end
 		WP_CORE_DIR=$(echo $WP_CORE_DIR | sed "s:/\+$::")
 		sed $ioption "s:dirname( __FILE__ ) . '/src/':'$WP_CORE_DIR/':" "$WP_TESTS_DIR"/wp-tests-config.php
-		sed $ioption "s:__DIR__ . '/src/':'$WP_CORE_DIR/':" "$WP_TESTS_DIR"/wp-tests-config.php
 		sed $ioption "s/youremptytestdbnamehere/$DB_NAME/" "$WP_TESTS_DIR"/wp-tests-config.php
 		sed $ioption "s/yourusernamehere/$DB_USER/" "$WP_TESTS_DIR"/wp-tests-config.php
 		sed $ioption "s/yourpasswordhere/$DB_PASS/" "$WP_TESTS_DIR"/wp-tests-config.php
@@ -153,7 +152,11 @@ recreate_db() {
 }
 
 create_db() {
-	mysqladmin create $DB_NAME --user="$DB_USER" --password="$DB_PASS"$EXTRA
+	if [ `which mariadb-admin` ]; then
+		mariadb-admin create $DB_NAME --user="$DB_USER" --password="$DB_PASS"$EXTRA
+	else
+		mysqladmin create $DB_NAME --user="$DB_USER" --password="$DB_PASS"$EXTRA
+	fi
 }
 
 install_db() {