feat(CI): improve Travis configuration (#1486)

- use random DB names in order to detect statements which address a specific DB
- split compilation and DB check (DB check and dry run only have to run once)
- use separate shell scripts for easier module Travis integration

apps/ci/ci-install.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+echo "install OS deps (apt-get)"
+bash ./acore.sh "install-deps"
+
+if [ "$TRAVIS_BUILD_ID" = "1" ]
+then
+  echo "install clang-3.8"
+  sudo apt-get install clang-3.8
+elif [ "$TRAVIS_BUILD_ID" = "2" ]
+then
+  echo "install clang-7"
+  sudo apt-get install clang-7
+fi
+
+echo "create config.sh"
+cat >>conf/config.sh <<CONFIG_SH
+CCOMPILERC=$CCOMPILERC
+CCOMPILERCXX=$CCOMPILERCXX
+MTHREADS=4
+CWARNINGS=ON
+CDEBUG=OFF
+CTYPE=Release
+CSCRIPTS=ON
+CSERVERS=ON
+CTOOLS=ON
+CSCRIPTPCH=OFF
+CCOREPCH=OFF
+CCUSTOMOPTIONS='-DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_C_FLAGS="-Werror" -DCMAKE_CXX_FLAGS="-Werror"'
+DB_CHARACTERS_CONF="MYSQL_USER='root'; MYSQL_PASS='$DB_RND_NAME'; MYSQL_HOST='localhost';"
+DB_AUTH_CONF="MYSQL_USER='root'; MYSQL_PASS='$DB_RND_NAME'; MYSQL_HOST='localhost';"
+DB_WORLD_CONF="MYSQL_USER='root'; MYSQL_PASS='$DB_RND_NAME'; MYSQL_HOST='localhost';"
+DB_AUTH_NAME=auth_$DB_RND_NAME
+DB_CHARACTERS_NAME=characters_$DB_RND_NAME
+DB_WORLD_NAME=world_$DB_RND_NAME
+CONFIG_SH
+
+if [ "$TRAVIS_BUILD_ID" = "1" ]
+then
+  echo "import DB"
+  bash ./acore.sh "db-assembler" "import-all"
+fi