Add logic to skip project wikis

src/main/rb/eca.rb

@@ -4,6 +4,7 @@
 require 'json'
 require 'httparty'
 require 'multi_json'
+WIKI_REGEX_MATCH = /.*\.wiki$/
 
 ## Process the commit into a hash object that will be posted to the ECA validation service
 def process_commit(sha)
@@ -48,6 +49,13 @@ new_head_commit = stdin_args[1]
 
 ## Get the project ID from env var, extracting from pattern 'project-###'
 project_id = ENV['GL_REPOSITORY'][8..-1]
+project_path = ENV['GL_PROJECT_PATH']
+## Check if current repo is a project wiki (no project ID and ends in .wiki)
+if (project_id.nil? && project_path =~ WIKI_REGEX_MATCH) then
+  puts "Repository is a project wiki and not bound by ECA, skipping"
+  exit 0
+end
+
 ## Get data about project from API
 project_response = HTTParty.get("https://gitlab.eclipse.org/api/v4/projects/#{project_id}", 
   :headers => {