Rename .travis_* files to ci/*.

The "ci" is the commonly used keyword not depending on the specific
CI services.

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
         include:
           # Allow failure due to Mysql2::Error: Unknown system variable 'session_track_system_variables'.
           - {os: ubuntu-16.04, ruby: 2.4, db: mariadb10.0, allow-failure: true}
-          # Comment out due to .travis_setup.sh stucking.
+          # Comment out due to ci/setup.sh stucking.
           # - {os: ubuntu-18.04, ruby: 2.4, db: mariadb10.1, allow-failure: false}
           # Allow failure due to the issue #1165.
           - {os: ubuntu-20.04, ruby: 2.4, db: mariadb10.3, allow-failure: true}
@@ -62,5 +62,5 @@ jobs:
       - if: matrix.db != ''
         run: echo 'DB=${{ matrix.db }}' >> $GITHUB_ENV
       - run: sudo echo "127.0.0.1 mysql2gem.example.com" | sudo tee -a /etc/hosts
-      - run: bash .travis_setup.sh
+      - run: bash ci/setup.sh
       - run: bundle exec rake

.github/workflows/container.yml

@@ -25,7 +25,7 @@ jobs:
       fail-fast: false
     steps:
       - uses: actions/checkout@v2
-      - run: docker build -t mysql2 -f .travis_Dockerfile_${{ matrix.distro }} --build-arg IMAGE=${{ matrix.image }} .
+      - run: docker build -t mysql2 -f ci/Dockerfile_${{ matrix.distro }} --build-arg IMAGE=${{ matrix.image }} .
       # Add the "--cap-add=... --security-opt seccomp=..." options
       # as a temporary workaround to avoid the following issue
       # in the Fedora >= 34 containers.

.travis.yml

@@ -8,7 +8,7 @@ before_install:
   - gem update --system --quiet || gem update --system 2.7.10 --quiet
   - gem update bundler
   - gem --version
-  - bash .travis_setup.sh
+  - bash ci/setup.sh
 addons:
   hosts:
     - mysql2gem.example.com

.travis_Dockerfile_centos → ci/Dockerfile_centos

@@ -22,4 +22,4 @@ RUN yum -yq install \
 RUN gem install --no-document "rubygems-update:~>2.7" && update_rubygems > /dev/null
 RUN gem install --no-document "bundler:~>1.17"
 
-CMD bash .travis_container.sh
+CMD bash ci/container.sh

.travis_Dockerfile_fedora → ci/Dockerfile_fedora

@@ -22,4 +22,4 @@ RUN dnf -yq install \
   rubygem-bigdecimal \
   rubygem-bundler
 
-CMD bash .travis_container.sh
+CMD bash ci/container.sh

.travis_container.sh → ci/container.sh

@@ -6,6 +6,6 @@ ruby -v
 bundle install --path vendor/bundle --without benchmarks development
 
 # Start mysqld service.
-bash .travis_setup_container.sh
+bash ci/setup_container.sh
 
 bundle exec rake

.travis_setup.sh → ci/setup.sh

@@ -29,18 +29,18 @@ fi
 
 # Install MySQL 5.5 if DB=mysql55
 if [[ -n ${DB-} && x$DB =~ ^xmysql55 ]]; then
-  sudo bash .travis_mysql55.sh
+  sudo bash ci/mysql55.sh
 fi
 
 # Install MySQL 5.7 if DB=mysql57
 if [[ -n ${DB-} && x$DB =~ ^xmysql57 ]]; then
-  sudo bash .travis_mysql57.sh
+  sudo bash ci/mysql57.sh
   CHANGED_PASSWORD=true
 fi
 
 # Install MySQL 8.0 if DB=mysql80
 if [[ -n ${DB-} && x$DB =~ ^xmysql80 ]]; then
-  sudo bash .travis_mysql80.sh
+  sudo bash ci/mysql80.sh
   CHANGED_PASSWORD=true
 fi
 
@@ -98,7 +98,7 @@ fi
 
 # TODO: get SSL working on OS X in Travis
 if ! [[ x$OSTYPE =~ ^xdarwin ]]; then
-  sudo bash .travis_ssl.sh
+  sudo bash ci/ssl.sh
   sudo service mysql restart
 fi