skip some installations to shorten build time

.travis.yml

@@ -77,11 +77,13 @@ before_install:
   - docker pull swaggerapi/petstore
   - docker run -d -e SWAGGER_HOST=http://petstore.swagger.io -e SWAGGER_BASE_PATH=/v2 -p 80:8080 swaggerapi/petstore
   - docker ps -a
+  # -- skip bash test to shorten build time
   # Add bats test framework and cURL for Bash script integration tests
-  - sudo add-apt-repository ppa:duggan/bats --yes
-  - sudo apt-get update -qq
-  - sudo apt-get install -qq bats
-  - sudo apt-get install -qq curl
+  #- sudo add-apt-repository ppa:duggan/bats --yes
+  #- sudo apt-get update -qq
+  #- sudo apt-get install -qq bats
+  #- sudo apt-get install -qq curl
+  # -- skip bash test end
   # install dart
   #- sudo apt-get update
   #- sudo apt-get install apt-transport-https
@@ -93,9 +95,6 @@ before_install:
   - phpenv versions
   - phpenv global 7.2.15
   - php -v
-  # install perl module
-  #- cpanm --local-lib=~/perl5 local::lib && eval $(perl -I ~/perl5/lib/perl5/ -Mlocal::lib)
-  #- cpanm Test::Exception Test::More Log::Any LWP::UserAgent JSON URI:Query Module::Runtime DateTime Module::Find Moose::Role
   # comment out below as installation failed in travis
   # Add rebar3 build tool and recent Erlang/OTP for Erlang petstore server tests.
   # - Travis CI does not support rebar3 [yet](https://github.com/travis-ci/travis-ci/issues/6506#issuecomment-275189490).
@@ -107,9 +106,11 @@ before_install:
   # install Qt5
   - sudo apt install -y --no-install-recommends qt5-default 
   - cmake --version
+  # -- skip perl test to shorten build time
   # perl dep
   - cpanm --local-lib=~/perl5 local::lib && eval $(perl -I ~/perl5/lib/perl5/ -Mlocal::lib)
   - cpanm --quiet --no-interactive Test::Exception Test::More Log::Any LWP::UserAgent URI::Query Module::Runtime DateTime Module::Find Moose::Role JSON || echo "Igorned failure from cpanm"
+  # -- skip perl test end
   # show host table to confirm petstore.swagger.io is mapped to localhost
   - cat /etc/hosts
   # show java version