Travis CI: don't try to test mysql2 adapter on Rails 3.0

.travis.yml

@@ -1,11 +1,7 @@
+script: spec/ci.rb
 rvm:
   - 1.8.7
   - 1.9.2
 gemfile:
   - Gemfile
   - Gemfile.rails3.0
-env:
-  - DB=sqlite3
-  - DB=mysql
-  - DB=mysql2
-  - DB=postgres

Gemfile.rails3.0

@@ -12,10 +12,7 @@ gem 'mocha', '~> 0.9.8'
 
 gem 'sqlite3', '~> 1.3.3'
 
-group :mysql do
-  gem 'mysql', '~> 2.8.1'
-  gem 'mysql2', '>= 0.3.6'
-end
+gem 'mysql', '~> 2.8.1', :group => :mysql
 gem 'pg', '~> 0.11', :group => :pg
 
 group :debug do

Gemfile.rails3.0.lock

@@ -39,7 +39,6 @@ GEM
       ruby_core_source (>= 0.1.4)
     mocha (0.9.12)
     mysql (2.8.1)
-    mysql2 (0.3.6)
     pg (0.11.0)
     rack (1.2.3)
     rack-mount (0.6.14)
@@ -83,7 +82,6 @@ DEPENDENCIES
   activeresource (~> 3.0.0)
   mocha (~> 0.9.8)
   mysql (~> 2.8.1)
-  mysql2 (>= 0.3.6)
   pg (~> 0.11)
   rake
   rspec (~> 2.6.0)

Rakefile

@@ -3,7 +3,7 @@ begin
 rescue LoadError
   # no spec tasks
 else
-  task :default => [:create_database, :spec]
+  task :default => :spec
 
   desc 'Run ALL OF the specs'
   RSpec::Core::RakeTask.new(:spec) do |t|
@@ -19,18 +19,6 @@ else
   end
 end
 
-desc 'Create necessary databases'
-task :create_database do |variable|
-  case ENV['DB']
-  when 'mysql', 'mysql2'
-    `mysql -e 'create database will_paginate;'`
-    abort "failed to create mysql database" unless $?.success?
-  when 'postgres'
-    `psql -c 'create database will_paginate;' -U postgres`
-    abort "failed to create postgres database" unless $?.success?
-  end
-end
-
 desc 'Run specs against both Rails 3.1 and Rails 3.0'
 task :rails3 do |variable|
   system 'bundle exec rake spec && BUNDLE_GEMFILE=Gemfile.rails3.0 bundle exec rake spec:rails'

spec/ci.rb

@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+databases = %w[ sqlite3 mysql mysql2 postgres ]
+databases.delete 'mysql2' if ENV['BUNDLE_GEMFILE'].to_s.include? 'rails3.0'
+
+def announce(name, msg)
+  puts "\n\e[1;33m[#{name}] #{msg}\e[m\n"
+end
+
+def system(*args)
+  puts "$ #{args.join(' ')}"
+  super
+end
+
+if ENV['TRAVIS']
+  system "mysql -e 'create database will_paginate;' >/dev/null"
+  abort "failed to create mysql database" unless $?.success?
+  system "psql -c 'create database will_paginate;' -U postgres >/dev/null"
+  abort "failed to create postgres database" unless $?.success?
+end
+
+failed = false
+
+for db in databases
+  announce "DB", db
+  ENV['DB'] = db
+  failed = true unless system %(rake)
+end
+
+exit 1 if failed