Add Crystal

lib/travis/build/script.rb

@@ -11,8 +11,9 @@
 
 require 'travis/build/script/android'
 require 'travis/build/script/c'
-require 'travis/build/script/cpp'
 require 'travis/build/script/clojure'
+require 'travis/build/script/cpp'
+require 'travis/build/script/crystal'
 require 'travis/build/script/csharp'
 require 'travis/build/script/d'
 require 'travis/build/script/dart'

lib/travis/build/script/crystal.rb

@@ -0,0 +1,48 @@
+module Travis
+  module Build
+    class Script
+      class Crystal < Script
+
+        def configure
+          super
+          sh.fold 'crystal_install' do
+            sh.echo 'Installing Crystal', ansi: :yellow
+
+            sh.cmd %q(sudo sh -c 'apt-key adv --keyserver keys.gnupg.net --recv-keys 09617FD37CC06B54')
+            sh.cmd %q(sudo sh -c 'echo "deb http://dist.crystal-lang.org/apt crystal main" > /etc/apt/sources.list.d/crystal.list')
+            sh.cmd %q(sudo sh -c 'apt-get update')
+
+            sh.cmd %q(sudo apt-get install crystal)
+          end
+        end
+
+        def setup
+          super
+
+          sh.echo 'Crystal for Travis-CI is not officially supported, but is community maintained.', ansi: :green
+          sh.echo 'Please file any issues using the following link', ansi: :green
+          sh.echo '  https://github.com/travis-ci/travis-ci/issues/new?labels=community:crystal', ansi: :green
+          sh.echo 'and mention \`@asterite\`, \`@jhass\`, \`@waj\` and \`@will\` in the issue', ansi: :green
+        end
+
+        def announce
+          super
+
+          sh.cmd 'crystal --version'
+          sh.echo ''
+        end
+
+        def install
+          sh.if '-f Projectfile' do
+            sh.cmd "crystal deps"
+          end
+        end
+
+        def script
+          sh.cmd "crystal spec"
+        end
+
+      end
+    end
+  end
+end

spec/build/script/crystal_spec.rb

@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Travis::Build::Script::Crystal, :sexp do
+  let(:data)   { payload_for(:push, :crystal) }
+  let(:script) { described_class.new(data) }
+  subject      { script.sexp }
+
+  it_behaves_like 'a build script sexp'
+
+  it "announces `crystal --version`" do
+    should include_sexp [:cmd, "crystal --version", echo: true]
+  end
+
+  it "runs tests by default" do
+    should include_sexp [:cmd,
+      "crystal spec",
+      echo: true, timing: true]
+  end
+end