custom_hook: refactor to pull repo_path into class

This commit takes the GitlabCustomHook a bit clother to the other hook
handling classes by receiving the repo_path as argument to initialize()
instead of passing it to each method.

hooks/post-receive

@@ -11,7 +11,7 @@ require_relative '../lib/gitlab_custom_hook'
 require_relative '../lib/gitlab_post_receive'
 
 if GitlabPostReceive.new(repo_path, key_id, refs).exec &&
-    GitlabCustomHook.new(key_id).post_receive(refs, repo_path)
+    GitlabCustomHook.new(repo_path, key_id).post_receive(refs)
   exit 0
 else
   exit 1

hooks/pre-receive

@@ -17,7 +17,7 @@ require_relative '../lib/gitlab_access'
 # other hand, we run GitlabPostReceive first because the push is already done
 # and we don't want to skip it if the custom hook fails.
 if GitlabAccess.new(repo_path, key_id, refs, protocol).exec &&
-    GitlabCustomHook.new(key_id).pre_receive(refs, repo_path) &&
+    GitlabCustomHook.new(repo_path, key_id).pre_receive(refs) &&
     GitlabReferenceCounter.new(repo_path).increase
   exit 0
 else

hooks/update

@@ -11,7 +11,7 @@ key_id    = ENV.delete('GL_ID')
 
 require_relative '../lib/gitlab_custom_hook'
 
-if GitlabCustomHook.new(key_id).update(ref_name, old_value, new_value, repo_path)
+if GitlabCustomHook.new(repo_path, key_id).update(ref_name, old_value, new_value)
   exit 0
 else
   exit 1

lib/gitlab_custom_hook.rb

@@ -5,26 +5,27 @@ require_relative 'gitlab_metrics'
 class GitlabCustomHook
   attr_reader :vars
 
-  def initialize(key_id)
+  def initialize(repo_path, key_id)
+    @repo_path = repo_path
     @vars = { 'GL_ID' => key_id }
   end
 
-  def pre_receive(changes, repo_path)
-    hook = hook_file('pre-receive', repo_path)
+  def pre_receive(changes)
+    hook = hook_file('pre-receive', @repo_path)
     return true if hook.nil?
 
     GitlabMetrics.measure("pre-receive-hook") { call_receive_hook(hook, changes) }
   end
 
-  def post_receive(changes, repo_path)
-    hook = hook_file('post-receive', repo_path)
+  def post_receive(changes)
+    hook = hook_file('post-receive', @repo_path)
     return true if hook.nil?
 
     GitlabMetrics.measure("post-receive-hook") { call_receive_hook(hook, changes) }
   end
 
-  def update(ref_name, old_value, new_value, repo_path)
-    hook = hook_file('update', repo_path)
+  def update(ref_name, old_value, new_value)
+    hook = hook_file('update', @repo_path)
     return true if hook.nil?
 
     GitlabMetrics.measure("update-hook") { system(vars, hook, ref_name, old_value, new_value) }

spec/gitlab_custom_hook_spec.rb

@@ -4,14 +4,14 @@ require 'pry'
 require 'gitlab_custom_hook'
 
 describe GitlabCustomHook do
-  let(:gitlab_custom_hook) { GitlabCustomHook.new('key_1') }
+  let(:gitlab_custom_hook) { GitlabCustomHook.new('repo_path', 'key_1') }
   let(:hook_path) { File.join(ROOT_PATH, 'spec/support/gl_id_test_hook') }
 
   context 'pre_receive hook' do
     it 'passes GL_ID variable to hook' do
       allow(gitlab_custom_hook).to receive(:hook_file).and_return(hook_path)
 
-      expect(gitlab_custom_hook.pre_receive('changes', 'repo_path')).to be_true
+      expect(gitlab_custom_hook.pre_receive('changes')).to be_true
     end
   end
 
@@ -19,7 +19,7 @@ describe GitlabCustomHook do
     it 'passes GL_ID variable to hook' do
       allow(gitlab_custom_hook).to receive(:hook_file).and_return(hook_path)
 
-      expect(gitlab_custom_hook.post_receive('changes', 'repo_path')).to be_true
+      expect(gitlab_custom_hook.post_receive('changes')).to be_true
     end
   end
 
@@ -27,7 +27,7 @@ describe GitlabCustomHook do
     it 'passes GL_ID variable to hook' do
       allow(gitlab_custom_hook).to receive(:hook_file).and_return(hook_path)
 
-      expect(gitlab_custom_hook.update('master', '', '', 'repo_path')).to be_true
+      expect(gitlab_custom_hook.update('master', '', '')).to be_true
     end
   end
 end