Add config option to disable git-annex

config.yml.example

@@ -46,3 +46,8 @@ log_level: INFO
 # Set to true to see real usernames in the logs instead of key ids, which is easier to follow, but
 # incurs an extra API call on every gitlab-shell command.
 audit_usernames: false
+
+# Enable git-annex support
+# git-annex allows managing files with git, without checking the file contents into git
+# See https://git-annex.branchable.com/ for documentation
+git_annex_enabled: true

lib/gitlab_config.rb

@@ -47,6 +47,10 @@ class GitlabConfig
     @config['audit_usernames'] ||= false
   end
 
+  def git_annex_enabled?
+    @config['git_annex_enabled'] ||= true
+  end
+
   # Build redis command to write update event in gitlab queue
   def redis_command
     if redis.empty?

lib/gitlab_shell.rb

@@ -50,11 +50,11 @@ class GitlabShell
     args = Shellwords.shellwords(@origin_cmd)
     @git_cmd = args.first
 
-    if @git_cmd == 'git-annex-shell'
+    if @git_cmd == 'git-annex-shell' && @config.git_annex_enabled?
       @repo_name = escape_path(args[2].gsub("\/~\/", ''))
 
       # Make sure repository has git-annex enabled
-      enable_git_annex(@repo_name)
+      init_git_annex(@repo_name)
     else
       raise DisallowedCommandError unless args.count == 2
       @repo_name = escape_path(args.last)
@@ -68,7 +68,7 @@ class GitlabShell
   def process_cmd
     repo_full_path = File.join(repos_path, repo_name)
 
-    if @git_cmd == 'git-annex-shell'
+    if @git_cmd == 'git-annex-shell' && @config.git_annex_enabled?
       args = Shellwords.shellwords(@origin_cmd)
       parsed_args =
         args.map do |arg|
@@ -127,7 +127,7 @@ class GitlabShell
     end
   end
 
-  def enable_git_annex(path)
+  def init_git_annex(path)
     full_repo_path = File.join(repos_path, path)
 
     unless File.exists?(File.join(full_repo_path, '.git', 'annex'))