Rename OVERCOMMIT_HOME constant to Overcommit::HOME

Since this was already in the `Overcommit` namespace, the `OVERCOMMIT_`
prefix was unnecessary.

Author: sds

lib/overcommit/cli.rb

@@ -128,7 +128,7 @@ def install_or_uninstall
     end
 
     def print_template_directory_path
-      puts File.join(OVERCOMMIT_HOME, 'template-dir')
+      puts File.join(Overcommit::HOME, 'template-dir')
       halt
     end
 

lib/overcommit/configuration.rb

@@ -147,7 +147,7 @@ def plugin_hook?(hook_context_or_type, hook_name)
     def built_in_hook?(hook_context, hook_name)
       hook_name = Overcommit::Utils.snake_case(hook_name)
 
-      File.exist?(File.join(OVERCOMMIT_HOME, 'lib', 'overcommit', 'hook',
+      File.exist?(File.join(Overcommit::HOME, 'lib', 'overcommit', 'hook',
                             hook_context.hook_type_name, "#{hook_name}.rb"))
     end
 

lib/overcommit/configuration_loader.rb

@@ -3,7 +3,7 @@
 module Overcommit
   # Manages configuration file loading.
   class ConfigurationLoader
-    DEFAULT_CONFIG_PATH = File.join(OVERCOMMIT_HOME, 'config', 'default.yml')
+    DEFAULT_CONFIG_PATH = File.join(Overcommit::HOME, 'config', 'default.yml')
 
     class << self
       # Loads and returns the configuration for the repository we're running in.

lib/overcommit/constants.rb

@@ -1,9 +1,9 @@
 # Global application constants.
 module Overcommit
-  OVERCOMMIT_HOME = File.expand_path(File.join(File.dirname(__FILE__), '..', '..'))
+  HOME = File.expand_path(File.join(File.dirname(__FILE__), '..', '..'))
   CONFIG_FILE_NAME = '.overcommit.yml'
 
-  HOOK_DIRECTORY = File.join(OVERCOMMIT_HOME, 'lib', 'overcommit', 'hook')
+  HOOK_DIRECTORY = File.join(HOME, 'lib', 'overcommit', 'hook')
 
   REPO_URL = 'https://github.com/brigade/overcommit'
   BUG_REPORT_URL = "#{REPO_URL}/issues"

lib/overcommit/installer.rb

@@ -3,7 +3,7 @@
 module Overcommit
   # Manages the installation of Overcommit hooks in a git repository.
   class Installer # rubocop:disable ClassLength
-    TEMPLATE_DIRECTORY = File.join(OVERCOMMIT_HOME, 'template-dir')
+    TEMPLATE_DIRECTORY = File.join(Overcommit::HOME, 'template-dir')
     MASTER_HOOK = File.join(TEMPLATE_DIRECTORY, 'hooks', 'overcommit-hook')
 
     def initialize(logger)
@@ -171,7 +171,7 @@ def install_starter_config
       repo_config_file = File.join(@target, Overcommit::CONFIG_FILE_NAME)
 
       return if File.exist?(repo_config_file)
-      FileUtils.cp(File.join(OVERCOMMIT_HOME, 'config', 'starter.yml'), repo_config_file)
+      FileUtils.cp(File.join(Overcommit::HOME, 'config', 'starter.yml'), repo_config_file)
     end
 
     def overcommit_hook?(file)

lib/overcommit/utils.rb

@@ -24,7 +24,7 @@ class Version < Gem::Version
 
     class << self
       def script_path(script)
-        File.join(OVERCOMMIT_HOME, 'libexec', script)
+        File.join(Overcommit::HOME, 'libexec', script)
       end
 
       # Returns an absolute path to the root of the repository.

spec/integration/template_dir_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe 'template directory' do
-  let(:template_dir) { File.join(Overcommit::OVERCOMMIT_HOME, 'template-dir') }
+  let(:template_dir) { File.join(Overcommit::HOME, 'template-dir') }
   let(:hooks_dir) { File.join(template_dir, 'hooks') }
 
   it 'contains a hooks directory' do

spec/overcommit/installer_spec.rb

@@ -136,7 +136,7 @@
             expect { subject }.to change {
               File.exist?('.overcommit.yml') && FileUtils.compare_file(
                 '.overcommit.yml',
-                File.join(Overcommit::OVERCOMMIT_HOME, 'config', 'starter.yml')
+                File.join(Overcommit::HOME, 'config', 'starter.yml')
               )
             }.from(false).to(true)
           end