Merge branch 'rake-tasks-git' into 'master'

CHANGELOG

@@ -5,6 +5,7 @@ v 8.3.0 (unreleased)
   - Fix API setting of 'public' attribute to false will make a project private (Stan Hu)
   - Handle and report SSL errors in Web hook test (Stan Hu)
   - Fix: Assignee selector is empty when 'Unassigned' is selected (Jose Corcuera)
+  - Add rake tasks for git repository maintainance (Zeger-Jan van de Weg)
   - Fix 500 error when update group member permission
   - Trim leading and trailing whitespace of milestone and issueable titles (Jose Corcuera)
   - Recognize issue/MR/snippet/commit links as references

lib/tasks/gitlab/git.rake

+namespace :gitlab do
+  namespace :git do
+
+    desc "GitLab | Git | Repack"
+    task repack: :environment do
+      failures = perform_git_cmd(%W(git repack -a --quiet), "Repacking repo")
+      if failures.empty?
+        puts "Done".green
+      else
+        output_failures(failures)
+      end
+    end
+
+    desc "GitLab | Git | Run garbage collection on all repos"
+    task gc: :environment do
+      failures = perform_git_cmd(%W(git gc --auto --quiet), "Garbage Collecting")
+      if failures.empty?
+        puts "Done".green
+      else
+        output_failures(failures)
+      end
+    end
+    
+    desc "GitLab | Git | Prune all repos"
+    task prune: :environment do
+      failures = perform_git_cmd(%W(git prune), "Git Prune")
+      if failures.empty?
+        puts "Done".green
+      else
+        output_failures(failures)
+      end
+    end
+
+    def perform_git_cmd(cmd, message)
+      puts "Starting #{message} on all repositories"
+
+      failures = []
+      all_repos do |repo|
+        if system(*cmd, chdir: repo)
+          puts "Performed #{message} at #{repo}"
+        else
+          failures << repo
+        end
+      end
+
+      failures
+    end
+
+    def output_failures(failures)
+      puts "The following repositories reported errors:".red
+      failures.each { |f| puts "- #{f}" }
+    end
+
+  end
+end

lib/tasks/gitlab/task_helpers.rake

@@ -118,4 +118,12 @@ namespace :gitlab do
       false
     end
   end
+
+  def all_repos
+    IO.popen(%W(find #{Gitlab.config.gitlab_shell.repos_path} -mindepth 2 -maxdepth 2 -type d -name *.git)) do |find|
+      find.each_line do |path|
+        yield path.chomp
+      end
+    end
+  end
 end