Fix mysql db speedup

Use sudo and sed to append config files lines.

[skip travis]

Author: rouilj

.github/workflows/ci-test.yml

@@ -124,15 +124,14 @@ jobs:
           #sleep 5
           # try to improve performance speed by disabling some ACID
           # settings and change some layout defaults.
-          
-          echo "innodb_flush_log_at_trx_commit = 2" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_file_per_table = OFF" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_doublewrite=OFF" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_fast_shutdown=2" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_log_file_size=1048576" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_flush_method=O_DIRECT" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_log_buffer_size=3M" >> /etc/mysql/mysql.conf.d/mysqld.cnf
-          echo "innodb_buffer_pool_size=180M" >> /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_flush_log_at_trx_commit = 2' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_file_per_table = OFF' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_doublewrite=OFF' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_fast_shutdown=2' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_log_file_size=1048576' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_flush_method=O_DIRECT' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_log_buffer_size=3M' /etc/mysql/mysql.conf.d/mysqld.cnf
+          sudo sed -i -e '$a\innodb_buffer_pool_size=180M' /etc/mysql/mysql.conf.d/mysqld.cnf
           sleep 3
           sudo service mysql restart
           #sleep 10