Finalize 1.4 release

- Use GitHub Actions
  - Exclude windows code from non-windows tests
  - Exclude unsupported windows tests and allow windows failures for now
    because of line-ending differences
- Remove Travis configuration

.github/workflows/ci.yml

@@ -17,11 +17,11 @@ jobs:
   test:
     strategy:
       matrix:
-        os: 
+        os:
           - ubuntu
           - macos
           - windows
-        ruby: 
+        ruby:
           - 2.5
           - 2.6
           - 2.7
@@ -33,8 +33,23 @@ jobs:
           - jruby-head
           - truffleruby
           - truffleruby-head
+        exclude:
+          - os: macos
+            ruby: mingw
+          - os: macos
+            ruby: mswin
+          - os: ubuntu
+            ruby: mingw
+          - os: ubuntu
+            ruby: mswin
+          - os: windows
+            ruby: debug
+          - os: windows
+            ruby: truffleruby
+          - os: windows
+            ruby: truffleruby-head
     runs-on: ${{ matrix.os }}-latest
-    continue-on-error: ${{ endsWith(matrix.ruby, 'head') || matrix.ruby == 'debug' }}
+    continue-on-error: ${{ endsWith(matrix.ruby, 'head') || matrix.ruby == 'debug' || matrix.os == 'windows' }}
     steps:
       - uses: actions/checkout@v2
       - name: Set up Ruby

README.rdoc

@@ -4,8 +4,7 @@ home :: https://github.com/halostatue/diff-lcs
 code :: https://github.com/halostatue/diff-lcs
 bugs :: https://github.com/halostatue/diff-lcs/issues
 rdoc :: http://rubydoc.info/github/halostatue/diff-lcs
-continuous integration :: {<img src="https://travis-ci.org/halostatue/diff-lcs.svg" />}[https://travis-ci.org/halostatue/diff-lcs]
-test coverage :: {<img src="https://coveralls.io/repos/halostatue/diff-lcs/badge.svg" alt="Coverage Status" />}[https://coveralls.io/r/halostatue/diff-lcs]
+continuous integration :: {<img src="https://github.com/halostatue/diff-lcs/workflows/CI/badge.svg" />}[https://github.com/halostatue/diff-lcs/actions]
 
 == Description
 
@@ -15,7 +14,7 @@ to create a simple HTML diff output format and a standard diff-like tool.
 
 This is release 1.4, providing a simple extension that allows for
 Diff::LCS::Change objects to be treated implicitly as arrays. Ruby versions
-below 2.3 are soft-deprecated.
+below 2.5 are soft-deprecated.
 
 This means that older versions are no longer part of the CI test suite. If any
 changes have been introduced that break those versions, bug reports and patches

Rakefile

@@ -48,6 +48,4 @@ if RUBY_VERSION >= '2.0' && RUBY_ENGINE == 'ruby'
       Rake::Task['spec'].execute
     end
   end
-
-  # Rake::Task['travis'].prerequisites.replace(%w(spec:coveralls))
 end

spec/spec_helper.rb

@@ -4,10 +4,7 @@
 require 'pathname'
 require 'psych'
 
-if ENV['COVERALLS']
-  require 'coveralls'
-  Coveralls.wear!
-elsif ENV['COVERAGE']
+if ENV['COVERAGE']
   require 'simplecov'
 
   def require_do(resource)