Remove Bourne shell from backup code

lib/backup/database.rb

@@ -13,20 +13,20 @@ module Backup
     def dump
       case config["adapter"]
       when /^mysql/ then
-        system("mysqldump #{mysql_args} #{config['database']} > #{db_file_name}")
+        system('mysqldump', *mysql_args, config['database'], out: db_file_name)
       when "postgresql" then
         pg_env
-        system("pg_dump #{config['database']} > #{db_file_name}")
+        system('pg_dump', config['database'], out: db_file_name)
       end
     end
 
     def restore
       case config["adapter"]
       when /^mysql/ then
-        system("mysql #{mysql_args} #{config['database']} < #{db_file_name}")
+        system('mysql', *mysql_args, config['database'], in: db_file_name)
       when "postgresql" then
         pg_env
-        system("psql #{config['database']} -f #{db_file_name}")
+        system('psql', config['database'], '-f', db_file_name)
       end
     end
 
@@ -45,7 +45,7 @@ module Backup
         'encoding'  => '--default-character-set',
         'password'  => '--password'
       }
-      args.map { |opt, arg| "#{arg}='#{config[opt]}'" if config[opt] }.compact.join(' ')
+      args.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact
     end
 
     def pg_env

lib/backup/manager.rb

@@ -16,7 +16,7 @@ module Backup
 
       # create archive
       print "Creating backup archive: #{s[:backup_created_at].to_i}_gitlab_backup.tar ... "
-      if Kernel.system("tar -cf #{s[:backup_created_at].to_i}_gitlab_backup.tar repositories/ db/ uploads/ backup_information.yml")
+      if Kernel.system(*%W(tar -cf #{s[:backup_created_at].to_i}_gitlab_backup.tar repositories/ db/ uploads/ backup_information.yml))
         puts "done".green
       else
         puts "failed".red
@@ -25,7 +25,7 @@ module Backup
 
     def cleanup
       print "Deleting tmp directories ... "
-      if Kernel.system("rm -rf repositories/ db/ uploads/ backup_information.yml")
+      if Kernel.system(*%W(rm -rf repositories/ db/ uploads/ backup_information.yml))
         puts "done".green
       else
         puts "failed".red
@@ -44,7 +44,7 @@ module Backup
         file_list.map! { |f| $1.to_i if f =~ /(\d+)_gitlab_backup.tar/ }
         file_list.sort.each do |timestamp|
           if Time.at(timestamp) < (Time.now - keep_time)
-            if system("rm #{timestamp}_gitlab_backup.tar")
+            if Kernel.system(*%W(rm #{timestamp}_gitlab_backup.tar))
               removed += 1
             end
           end
@@ -75,7 +75,7 @@ module Backup
       end
 
       print "Unpacking backup ... "
-      unless Kernel.system("tar -xf #{tar_file}")
+      unless Kernel.system(*%W(tar -xf #{tar_file}))
         puts "failed".red
         exit 1
       else

lib/backup/repository.rb

@@ -18,7 +18,7 @@ module Backup
         # Create namespace dir if missing
         FileUtils.mkdir_p(File.join(backup_repos_path, project.namespace.path)) if project.namespace
 
-        if system("cd #{path_to_repo(project)} > /dev/null 2>&1 && git bundle create #{path_to_bundle(project)} --all > /dev/null 2>&1")
+        if system(*%W(git --git-dir=#{path_to_repo(project)} bundle create #{path_to_bundle(project)} --all), silent)
           puts "[DONE]".green
         else
           puts "[FAILED]".red
@@ -30,7 +30,7 @@ module Backup
           print " * #{wiki.path_with_namespace} ... "
           if wiki.empty?
             puts " [SKIPPED]".cyan
-          elsif system("cd #{path_to_repo(wiki)} > /dev/null 2>&1 && git bundle create #{path_to_bundle(wiki)} --all > /dev/null 2>&1")
+          elsif system(*%W(git --git-dir=#{path_to_repo(wiki)} bundle create #{path_to_bundle(wiki)} --all), silent)
             puts " [DONE]".green
           else
             puts " [FAILED]".red
@@ -53,7 +53,7 @@ module Backup
 
         project.namespace.ensure_dir_exist if project.namespace
 
-        if system("git clone --bare #{path_to_bundle(project)} #{path_to_repo(project)} > /dev/null 2>&1")
+        if system(*%W(git clone --bare #{path_to_bundle(project)} #{path_to_repo(project)}), silent)
           puts "[DONE]".green
         else
           puts "[FAILED]".red
@@ -63,7 +63,7 @@ module Backup
 
         if File.exists?(path_to_bundle(wiki))
           print " * #{wiki.path_with_namespace} ... "
-          if system("git clone --bare #{path_to_bundle(wiki)} #{path_to_repo(wiki)} > /dev/null 2>&1")
+          if system(*%W(git clone --bare #{path_to_bundle(wiki)} #{path_to_repo(wiki)}), silent)
             puts " [DONE]".green
           else
             puts " [FAILED]".red
@@ -73,7 +73,7 @@ module Backup
 
       print 'Put GitLab hooks in repositories dirs'.yellow
       gitlab_shell_user_home = File.expand_path("~#{Gitlab.config.gitlab_shell.ssh_user}")
-      if system("#{gitlab_shell_user_home}/gitlab-shell/support/rewrite-hooks.sh #{Gitlab.config.gitlab_shell.repos_path}")
+      if system("#{gitlab_shell_user_home}/gitlab-shell/support/rewrite-hooks.sh", Gitlab.config.gitlab_shell.repos_path)
         puts " [DONE]".green
       else
         puts " [FAILED]".red
@@ -103,5 +103,9 @@ module Backup
       FileUtils.rm_rf(backup_repos_path)
       FileUtils.mkdir_p(backup_repos_path)
     end
+
+    def silent
+      {err: '/dev/null', out: '/dev/null'}
+    end
   end
 end