setup for ruby 1.9+ and jruby 1.7+

.travis.yml

@@ -1,14 +1,61 @@
+---
 language: ruby
 cache: bundler
-rvm:
- - 2.3
- - 2.4
- - 2.5
-script: bundle exec rake $TASK
-env:
-- TASK=test
+gemfile: gemfiles/ruby-others
+script: bundle exec rake default
+
 matrix:
   include:
-    - env: TASK=rubocop
-      rvm: 2.3
+
+    # ruby
+    - rvm: 1.9
+      gemfile: gemfiles/ruby-1.9
+      env:
+        - SKIP_RUBOCOP=true
+        - SKIP_SINGLECOV=true
+
+    - rvm: 2.0
+      gemfile: gemfiles/ruby-2.0
+      env: SKIP_RUBOCOP=true
+
+    - rvm: 2.1
+      env: SKIP_RUBOCOP=true
+
+    - rvm: 2.2
+      env: SKIP_RUBOCOP=true
+
+    - rvm: 2.3
+      env: SKIP_RUBOCOP=true
+
+    - rvm: 2.4
+      env: SKIP_RUBOCOP=true
+
+    - rvm: 2.5    # with rubocop
+
+    - rvm: 2.6
+      env: SKIP_RUBOCOP=true
+
+
+    # jruby
+    - rvm: jruby-1.7
+      gemfile: gemfiles/ruby-1.9
+      env:
+        - SKIP_RUBOCOP=true
+        - SKIP_SINGLECOV=true
+
+    - rvm: jruby-9.0
+      gemfile: gemfiles/ruby-2.0
+      env:
+        - SKIP_RUBOCOP=true
+        - SKIP_SINGLECOV=true
+
+    - rvm: jruby-9.1
+      env:
+        - SKIP_RUBOCOP=true
+        - SKIP_SINGLECOV=true
+
+    - rvm: jruby-9.2
+      env:
+        - SKIP_RUBOCOP=true
+        - SKIP_SINGLECOV=true
 

Rakefile

@@ -4,7 +4,7 @@
 require "bundler/setup"
 require "bundler/gem_tasks"
 require "rake/testtask"
-require "rubocop/rake_task"
+require "rubocop/rake_task" unless ENV['SKIP_RUBOCOP']
 
 # The extras that override the built-in methods need to be tested in isolation in order
 # to prevent them to change also the behavior and the result of the built-in tests.
@@ -42,8 +42,11 @@ end
 
 task :test => [:test_common, :test_extra_items, :test_extra_i18n, :test_extra_overflow, :test_extra_trim ]
 
-RuboCop::RakeTask.new(:rubocop) do |t|
-  t.options = `git ls-files -z`.split("\x0")     # limit rubocop to the files in the repo
+if ENV['SKIP_RUBOCOP']
+  task :default => [:test]
+else
+  RuboCop::RakeTask.new(:rubocop) do |t|
+    t.options = `git ls-files -z`.split("\x0")     # limit rubocop to the files in the repo
+  end
+  task :default => [:test, :rubocop]
 end
-
-task :default => [:test, :rubocop]

docs/how-to.md

@@ -64,7 +64,7 @@ You can copy the comprehensive and annotated [pagy.rb](https://github.com/ddnexu
 
 ## Environment Assumptions
 
-- ruby >= 2.3
+- ruby 1.9+ or jruby 1.7+
 
 ### Out of the box assumptions
 

gemfiles/ruby-1.9

@@ -0,0 +1,9 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# test
+gem 'rake',     '~> 10.0'
+gem 'minitest', '~> 5.0'
+gem 'rack',     '<= 1.14'
+gem 'i18n',     '0.8.5'

gemfiles/ruby-2.0

@@ -0,0 +1,11 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# test
+gem 'rake',       '~> 10.0'
+gem 'minitest',   '~> 5.0'
+gem 'rack',       '1.6.11'
+gem 'i18n',       '1.1.0'
+gem 'single_cov', '~> 1.3.0' unless ENV['SKIP_SINGLECOV']
+

gemfiles/ruby-others

@@ -0,0 +1,12 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# test
+gem 'rake',       '~> 10.0'
+gem 'minitest',   '~> 5.0'
+gem 'rack'
+gem 'i18n'
+gem 'single_cov', '~> 1.3.0'  unless ENV['SKIP_SINGLECOV']
+gem 'rubocop',    '~> 0.63.1' unless ENV['SKIP_RUBOCOP']
+

pagy.gemspec

@@ -8,12 +8,9 @@ Gem::Specification.new do |s|
   s.authors       = ['Domizio Demichelis']
   s.email         = ['dd.nexus@gmail.com']
   s.summary       = 'The Ultimate Pagination Ruby Gem'
-  s.description   = 'Agnostic pagination in plain ruby: it works with any framework, ORM and DB type, with all kinds of collections, even pre-paginated, scopes, Arrays, JSON data... and just whatever you can count. Easy to use and customize, very fast and very light.'
+  s.description   = 'Agnostic pagination in plain ruby: it works with any framework, ORM and DB type, with all kinds of collections, even pre-paginated, scopes, Arrays, JSON data... Easy, powerful, fast and light.'
   s.homepage      = 'https://github.com/ddnexus/pagy'
   s.license       = 'MIT'
   s.files         = `git ls-files -z`.split("\x0").select{|f| f.start_with?('lib', 'pagy.gemspec', 'LICENSE') }
-  s.required_ruby_version = '>= 2.3.0'
-
-  # remove after 1.0
-  s.post_install_message = "Pagy CHANGELOG: https://github.com/ddnexus/pagy/blob/master/CHANGELOG.md"
+  s.required_ruby_version = '>= 1.9'  # rubocop:disable Gemspec/RequiredRubyVersion
 end