Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/composer/recipes/default.rb

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+#
+# Cookbook Name:: composer
+# Recipe:: default
+#
+# Copyright (c) 2016, David Joos
+#
+
+include_recipe 'composer::install'
+
+if node['composer']['install_globally']
+  include_recipe 'composer::global_configs'
+end

cookbooks/composer/recipes/global_configs.rb

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+#
+# Cookbook Name:: composer
+# Recipe:: global_configs
+#
+# Copyright (c) 2016, David Joos
+#
+
+configs = node['composer']['global_configs']
+
+unless configs.nil?
+  configs.each_pair do |user, user_configs|
+    user_composer_dir = "#{Dir.home(user)}/.composer"
+
+    directory user_composer_dir do
+      owner user
+      group user
+      mode '0755'
+      action :create
+    end
+
+    user_configs.nil? && next
+
+    user_configs.each_pair do |option, value|
+      if value.respond_to?(:each_pair)
+        value.each_pair do |value_k, value_v|
+          execute "composer-config-for-#{user}" do
+            command "composer config --global #{option}.#{value_k} #{value_v}"
+            environment 'COMPOSER_HOME' => user_composer_dir
+            user user
+            group user
+            action :run
+          end
+        end
+      else
+        execute "composer-config-for-#{user}" do
+          command "composer config --global #{option} #{value}"
+          environment 'COMPOSER_HOME' => user_composer_dir
+          user user
+          group user
+          action :run
+        end
+      end
+    end
+  end
+end

cookbooks/composer/recipes/install.rb

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+#
+# Cookbook Name:: composer
+# Recipe:: install
+#
+# Copyright (c) 2016, David Joos
+#
+
+include_recipe node['composer']['php_recipe']
+
+if node['platform'] == 'windows'
+  windows_package 'Composer - PHP Dependency Manager' do
+    source node['composer']['url']
+    options %w(
+      /VERYSILENT
+    ).join(' ')
+  end
+
+  install_dir = "#{node['composer']['install_dir'].tr('/', '\\')}\\bin"
+
+  ENV['PATH'] += ";#{install_dir}"
+  windows_path install_dir
+else
+  log '[composer] phar (PHP archive) not supported' do
+    level :warn
+    not_if "php -m | grep 'Phar'"
+  end
+
+  file = node['composer']['install_globally'] ? "#{node['composer']['install_dir']}/composer" : "#{node['composer']['install_dir']}/composer.phar"
+
+  remote_file file do
+    source node['composer']['url']
+    mode node['composer']['mask']
+    action :create
+    not_if { ::File.exist?(file) }
+  end
+end

cookbooks/composer/recipes/self_update.rb

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+#
+# Cookbook Name:: composer
+# Recipe:: self_update
+#
+# Copyright (c) 2016, David Joos
+#
+
+include_recipe 'composer::install'
+
+execute 'composer-self_update' do
+  cwd node['composer']['install_dir']
+  command 'composer self-update'
+  environment 'COMPOSER_HOME' => Composer.home_dir(node)
+  action :run
+  ignore_failure true
+end