sudo: false
dist: trusty
services:
  - redis-server
language: ruby

rvm:
  - 1.9.3
  - 2.0.0
  - 2.1.0
  - 2.2.2
  - 2.3.8
  - 2.4.5
  - 2.5.3
  - 2.6.5
  - 2.7.0
  - rbx
  # Travis's own rvm installer is failing on JRuby builds, TODO: reenable when fixed.
  # - jruby-9.1.9.0

  #
  # # About legacy JRuby
  #
  # Legacy JRubies (jruby-18mode, jruby-19mode) have been disabled for some time by
  # listing all possible targets in either the exclude or allow_failures sections.
  # I have taken a look at getting them running, and have found that no valid
  # combination of dependencies is possible for Rails 3.0 and higher. It appears
  # Rails 2.2 is meant to work, though I haven't tried it.
  #
  # For Rails 3.0, it is possible to get a working bundle with all gem dependencies,
  # but the JDBC adapter gem needs an earlier version of ActiveSupport, and it will
  # fail at runtime.
  #
  # For Rails 3.1 and 3.2, Rack 1.3.x and higher require Ruby 2.x, while Rails 3.x will
  # not accept any 1.2.x version of Rack. Even if this could be resolved, one would
  # hit the above runtime issue amyway.
  #
  # # About current JRuby
  #
  # While current JRuby builds aim to be Ruby 2.5.x compatible, the JDBC adapter
  # gem is constrained to only Rails 5.0, 5.1 and 5.2 at this time. (Old versions
  # of the gem allow >= Rails 2.2, but in practice it will not work with Rails 3.0
  # and higher because of the ActiveSupport issue described above.) For as long as
  # the test suite relies on Rails and SqlLite, it is not possible to include
  # earlier Rails for JRuby.

jdk:
  # These are the JDKs currently supported on Travis (Trusty - Ubuntu 14.04)
  - openjdk7
  - openjdk8
  - oraclejdk8
  - oraclejdk9
gemfile:
  - gemfiles/rails30.gemfile
  - gemfiles/rails31.gemfile
  - gemfiles/rails32.gemfile
  - gemfiles/rails40.gemfile
  - gemfiles/rails41.gemfile
  - gemfiles/rails42.gemfile
  - gemfiles/rails50.gemfile
  - gemfiles/rails51.gemfile
  - gemfiles/rails52.gemfile
  - gemfiles/rails60.gemfile
matrix:
  include: []

  allow_failures:
    - rvm: ruby-head
    - rvm: jruby-head
    # oraclejdk9 has a dependency issue that needs to be investigated
    - jdk: oraclejdk9

  exclude:
    # Don't run tests for non-jruby environments with the JDK.
    # NOTE: openjdk7 is missing from these exclusions so that Travis will run at least 1 build for the given rvm.
    - rvm: 1.9.3
      jdk: openjdk8
    - rvm: 1.9.3
      jdk: oraclejdk8
    - rvm: 1.9.3
      jdk: oraclejdk9
    - rvm: 2.0.0
      jdk: openjdk8
    - rvm: 2.0.0
      jdk: oraclejdk8
    - rvm: 2.0.0
      jdk: oraclejdk9
    - rvm: 2.1.0
      jdk: openjdk8
    - rvm: 2.1.0
      jdk: oraclejdk8
    - rvm: 2.1.0
      jdk: oraclejdk9
    - rvm: 2.2.2
      jdk: openjdk8
    - rvm: 2.2.2
      jdk: oraclejdk8
    - rvm: 2.2.2
      jdk: oraclejdk9
    - rvm: 2.3.8
      jdk: openjdk8
    - rvm: 2.3.8
      jdk: oraclejdk8
    - rvm: 2.3.8
      jdk: oraclejdk9
    - rvm: 2.4.5
      jdk: openjdk8
    - rvm: 2.4.5
      jdk: oraclejdk8
    - rvm: 2.4.5
      jdk: oraclejdk9
    - rvm: 2.5.3
      jdk: openjdk8
    - rvm: 2.5.3
      jdk: oraclejdk8
    - rvm: 2.5.3
      jdk: oraclejdk9
    - rvm: 2.6.5
      jdk: openjdk8
    - rvm: 2.6.5
      jdk: oraclejdk8
    - rvm: 2.6.5
      jdk: oraclejdk9
    - rvm: 2.7.0
      jdk: openjdk8
    - rvm: 2.7.0
      jdk: oraclejdk8
    - rvm: 2.7.0
      jdk: oraclejdk9

    - rvm: ruby-head
      jdk: openjdk8
    - rvm: ruby-head
      jdk: oraclejdk8
    - rvm: ruby-head
      jdk: oraclejdk9
    - rvm: rbx
      jdk: openjdk8
    - rvm: rbx
      jdk: oraclejdk8
    - rvm: rbx
      jdk: oraclejdk9

    # Rails 6.x requires Ruby 2.5.0 or higher
    - rvm: 2.2.2
      gemfile: gemfiles/rails60.gemfile
    - rvm: 2.3.8
      gemfile: gemfiles/rails60.gemfile
    - rvm: 2.4.5
      gemfile: gemfiles/rails60.gemfile
    # Rails 5.x requires Ruby 2.2.2 or higher
    - rvm: 1.9.3
      gemfile: gemfiles/rails50.gemfile
    - rvm: 1.9.3
      gemfile: gemfiles/rails51.gemfile
    - rvm: 1.9.3
      gemfile: gemfiles/rails52.gemfile
    - rvm: 1.9.3
      gemfile: gemfiles/rails60.gemfile
    # Rails 5.x requires Ruby 2.2.2 or higher
    - rvm: 2.0.0
      gemfile: gemfiles/rails50.gemfile
    - rvm: 2.0.0
      gemfile: gemfiles/rails51.gemfile
    - rvm: 2.0.0
      gemfile: gemfiles/rails52.gemfile
    - rvm: 2.0.0
      gemfile: gemfiles/rails60.gemfile
    # Rails 5.x requires Ruby 2.2.2 or higher
    - rvm: 2.1.0
      gemfile: gemfiles/rails50.gemfile
    - rvm: 2.1.0
      gemfile: gemfiles/rails51.gemfile
    - rvm: 2.1.0
      gemfile: gemfiles/rails52.gemfile
    - rvm: 2.1.0
      gemfile: gemfiles/rails60.gemfile
    # MRI 2.2.2 supports Rails 3.2.x and higher, except Rails 5.2.4 and higher*
    # * ActionDispatch 5.2.4 uses Ruby 3.x safe navigation operator.
    - rvm: 2.2.2
      gemfile: gemfiles/rails30.gemfile
    - rvm: 2.2.2
      gemfile: gemfiles/rails31.gemfile
    - rvm: 2.2.2
      gemfile: gemfiles/rails52.gemfile
    # MRI 2.3.x supports Rails 4.0.x and higher
    - rvm: 2.3.8
      gemfile: gemfiles/rails30.gemfile
    - rvm: 2.3.8
      gemfile: gemfiles/rails31.gemfile
    - rvm: 2.3.8
      gemfile: gemfiles/rails32.gemfile
    - rvm: 2.3.8
      gemfile: gemfiles/rails40.gemfile
    - rvm: 2.3.8
      gemfile: gemfiles/rails41.gemfile
    # MRI 2.4.x and higher (e.g. 2.5.x, 2.6.x, etc) supports Rails 4.2.8 and higher
    # Rails lower than 4.2.8 is incompatible with Ruby 2.4 Integer class
    - rvm: 2.4.5
      gemfile: gemfiles/rails30.gemfile
    - rvm: 2.4.5
      gemfile: gemfiles/rails31.gemfile
    - rvm: 2.4.5
      gemfile: gemfiles/rails32.gemfile
    - rvm: 2.4.5
      gemfile: gemfiles/rails40.gemfile
    - rvm: 2.4.5
      gemfile: gemfiles/rails41.gemfile
    - rvm: 2.5.3
      gemfile: gemfiles/rails30.gemfile
    - rvm: 2.5.3
      gemfile: gemfiles/rails31.gemfile
    - rvm: 2.5.3
      gemfile: gemfiles/rails32.gemfile
    - rvm: 2.5.3
      gemfile: gemfiles/rails40.gemfile
    - rvm: 2.5.3
      gemfile: gemfiles/rails41.gemfile
    - rvm: 2.6.5
      gemfile: gemfiles/rails30.gemfile
    - rvm: 2.6.5
      gemfile: gemfiles/rails31.gemfile
    - rvm: 2.6.5
      gemfile: gemfiles/rails32.gemfile
    - rvm: 2.6.5
      gemfile: gemfiles/rails40.gemfile
    - rvm: 2.6.5
      gemfile: gemfiles/rails41.gemfile
    - rvm: 2.6.5
      gemfile: gemfiles/rails42.gemfile
    # Rails 6.x tries to be compatible with Ruby 2.7, though
    # it still throws a lot of warnings. No point testing earlier
    # Rails with Ruby 2.7.
    - rvm: 2.7.0
      gemfile: gemfiles/rails30.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails31.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails32.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails40.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails41.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails42.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails50.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails51.gemfile
    - rvm: 2.7.0
      gemfile: gemfiles/rails52.gemfile
    # JRuby JDBC Adapter is only compatible with Rails >= 5.x
    - rvm: jruby-9.1.9.0
      gemfile: gemfiles/rails30.gemfile
    - rvm: jruby-9.1.9.0
      gemfile: gemfiles/rails31.gemfile
    - rvm: jruby-9.1.9.0
      gemfile: gemfiles/rails32.gemfile
    - rvm: jruby-9.1.9.0
      gemfile: gemfiles/rails40.gemfile
    - rvm: jruby-9.1.9.0
      gemfile: gemfiles/rails41.gemfile
    - rvm: jruby-9.1.9.0
      gemfile: gemfiles/rails42.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails30.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails31.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails32.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails40.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails41.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails42.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails50.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails51.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails52.gemfile
    - rvm: rbx
      gemfile: gemfiles/rails60.gemfile