Merge pull request diesel-rs#2466 from JohnTitor/mysql-version

Use version number from installed lib

Author: weiznich

.github/workflows/ci.yml

@@ -121,16 +121,17 @@ jobs:
       - name: Install mysql (MacOS)
         if: runner.os == 'macOS' && matrix.backend == 'mysql'
         run: |
-          brew update &&
-          brew install mysql &&
-          brew services start mysql &&
-          brew services stop mysql;sleep 3;brew services start mysql &&
-          sleep 2 &&
-          /usr/local/Cellar/mysql/8.0.21/bin/mysql -e "create database diesel_test; create database diesel_unit_test; grant all on \`diesel_%\`.* to 'root'@'localhost';" -uroot
+          brew update
+          brew install mysql
+          brew services start mysql
+          brew services stop mysql;sleep 3;brew services start mysql
+          sleep 2
+          macos_mysql_version="$(ls /usr/local/Cellar/mysql)"
+          /usr/local/Cellar/mysql/${macos_mysql_version}/bin/mysql -e "create database diesel_test; create database diesel_unit_test; grant all on \`diesel_%\`.* to 'root'@'localhost';" -uroot
           echo '::set-env name=MYSQL_DATABASE_URL::mysql://root@localhost/diesel_test'
           echo '::set-env name=MYSQL_EXAMPLE_DATABASE_URL::mysql://root@localhost/diesel_example'
           echo '::set-env name=MYSQL_UNIT_TEST_DATABASE_URL::mysql://root@localhost/diesel_unit_test'
-          echo '::set-env name=MYSQLCLIENT_LIB_DIR::/usr/local/Cellar/mysql/8.0.21/lib'
+          echo '::set-env name=MYSQLCLIENT_LIB_DIR::/usr/local/Cellar/mysql/${macos_mysql_version}/lib'
 
       - name: Install sqlite (Windows)
         if: runner.os == 'Windows' && matrix.backend == 'sqlite'