First commit

.travis.yml

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+language: ruby
+rvm:
+  - 2.0.0
+  - 2.1.1

Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in locomotivecms_common.gemspec
+gemspec

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    locomotivecms_common (0.0.1)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.2.5)
+    rake (10.2.2)
+    rspec (2.14.1)
+      rspec-core (~> 2.14.0)
+      rspec-expectations (~> 2.14.0)
+      rspec-mocks (~> 2.14.0)
+    rspec-core (2.14.8)
+    rspec-expectations (2.14.5)
+      diff-lcs (>= 1.1.3, < 2.0)
+    rspec-mocks (2.14.6)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.5)
+  locomotivecms_common!
+  rake (~> 10.1)
+  rspec (~> 2.14)

LICENSE.txt

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+Copyright (c) 2014 Joel AZEMAR
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# LocomotivecmsCommon
+
+[![Gem Version](https://badge.fury.io/rb/common.png)](http://badge.fury.io/rb/locomotivecms_common)
+
+[![Code Climate](https://codeclimate.com/github/locomotivecms/common.png)](https://codeclimate.com/github/locomotivecms/common)
+
+[![Dependency Status](https://gemnasium.com/locomotivecms/common.png)](https://gemnasium.com/locomotivecms/common)
+
+[![Build Status](https://travis-ci.org/locomotivecms/common.png?branch=master)](https://travis-ci.org/locomotivecms/common) (Travis CI)
+
+[![Coverage Status](https://coveralls.io/repos/locomotivecms/common/badge.png)](https://coveralls.io/r/locomotivecms/common)
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+    gem 'locomotivecms_common'
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install locomotivecms_common
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Contributing
+
+1. Fork it ( http://github.com/<my-github-username>/locomotivecms_common/fork )
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request

Rakefile

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+require 'rubygems'
+require 'bundler/setup'
+require 'bundler/gem_tasks'
+require 'rake'
+require 'rspec'
+require 'rspec/core/rake_task'
+
+require_relative 'lib/common'
+
+RSpec::Core::RakeTask.new('spec:all') do |spec|
+  spec.pattern = 'spec/**/*_spec.rb'
+end
+
+task spec: ['spec:all']
+task default: :spec

lib/common.rb

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+require_relative 'locomotive/common/version'
+require_relative 'locomotive/common/exception'
+
+# module Locomotive
+#   module Common
+#   end
+# end

lib/locomotive/common/exception.rb

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+module Locomotive
+  module Common
+
+    class Notifier
+      def method_missing method, *args
+        nil
+      end
+    end
+
+    class DefaultException < ::Exception
+      attr_accessor :notifier
+
+      def initialize(message = nil, parent_exception = nil)
+        self.notifier = Locomotive::Common::Notifier.new
+        self.log_backtrace(parent_exception) if parent_exception
+        super(message)
+        init_plugins
+      end
+
+      def init_plugins
+        @plugins = []
+        Locomotive::Common::Plugins.constants.each do |name|
+          @plugins << ::Plugins.const_get(name).new(self)
+        end
+      end
+
+      protected
+
+      def log_backtrace(parent_exception)
+        full_error_message = "#{parent_exception.message}\n\t"
+        full_error_message += parent_exception.backtrace.join("\n\t")
+        full_error_message += "\n\n"
+
+        notifier.fatal full_error_message
+      end
+    end
+
+    class RendererException < DefaultException
+      attr_accessor :name, :template, :liquid_context
+
+      def initialize(exception, name, template, liquid_context)
+        self.name, self.template, self.liquid_context = name, template, liquid_context
+        self.log_page_into_backtrace(exception)
+        super(exception.message)
+        self.set_backtrace(exception.backtrace)
+      end
+
+      def log_page_into_backtrace(exception)
+        line = self.template.line_offset
+        line += (exception.respond_to?(:line) ? exception.line || 0 : 0) + 1
+        message = "#{self.template.filepath}:#{line}:in `#{self.name}'"
+        notifier.fatal "[ERROR] #{exception.message} - #{message}\n".red
+        exception.backtrace.unshift message
+      end
+    end
+
+    class MounterException < DefaultException() ; end
+    class GeneratorException < DefaultException() ; end
+
+  end
+end

lib/locomotive/common/plugins/notifier.rb

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+module Locomotive
+  module Common
+    module Plugins
+
+      class Notifier
+        def initialize(exception)
+          exception.notifier.extend(UiDevNull)
+        end
+
+        module UiWithBeep
+          def fatal(*)
+            nil # Locomotive::Steam::Logger.fatal args.first
+          end
+        end
+      end
+
+    end
+  end
+end

lib/locomotive/common/version.rb

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+module Locomotive
+  module Common
+    VERSION = '0.0.1'
+  end
+end

locomotivecms_common.gemspec

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+require_relative 'lib/common'
+
+Gem::Specification.new do |spec|
+  spec.name          = 'locomotivecms_common'
+  spec.version       = Locomotive::Common::VERSION
+  spec.authors       = ['Didier Lafforgue', 'Arnaud Sellenet', 'Joel Azemar']
+  spec.email         = ['[email protected]', '[email protected]', '[email protected]']
+  spec.description   = %q{The LocomotiveCMS Common is a shared libraries package}
+  spec.summary       = %q{The LocomotiveCMS Common is a shared libraries package for all LocomotiveCMS dependencies}
+  spec.homepage      = 'http://www.locomotivecms.com'
+  spec.homepage      = 'https://github.com/locomotivecms/common'
+  spec.license       = 'MIT'
+
+  spec.files         = `git ls-files`.split($/)
+  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
+  spec.require_paths = ['lib']
+
+  spec.add_development_dependency 'bundler', '~> 1.5'
+  spec.add_development_dependency 'rake', '~> 10.1'
+  spec.add_development_dependency 'rspec', '~> 2.14'
+
+  spec.required_ruby_version = '~> 2.0'
+end

spec/locomotive/exception_spec.rb

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+require 'spec_helper'
+
+describe Locomotive::Common::DefaultException do
+
+  specify do
+    expect do
+      raise DefaultException.new
+    end.to raise_error(DefaultException)
+  end
+
+end

spec/spec_helper.rb

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+require 'rubygems'
+require 'bundler/setup'
+
+require_relative '../lib/common'
+
+RSpec.configure do |config|
+  config.filter_run focused: true
+  config.run_all_when_everything_filtered = true
+end