1 files changed, 75 insertions, 0 deletions
diff --git a/lib/tasks/gitlab/gitaly.rake b/lib/tasks/gitlab/gitaly.rake
new file mode 100644
index 00000000000..a8db5701d0b
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+++ b/lib/tasks/gitlab/gitaly.rake
@@ -0,0 +1,75 @@
+namespace :gitlab do
+  namespace :gitaly do
+    desc "GitLab | Install or upgrade gitaly"
+    task :install, [:dir, :repo] => :environment do |t, args|
+      require 'toml'
+
+      warn_user_is_not_gitlab
+      unless args.dir.present?
+        abort %(Please specify the directory where you want to install gitaly:\n  rake "gitlab:gitaly:install[/home/git/gitaly]")
+      end
+      args.with_defaults(repo: 'https://gitlab.com/gitlab-org/gitaly.git')
+
+      version = Gitlab::GitalyClient.expected_server_version
+
+      checkout_or_clone_version(version: version, repo: args.repo, target_dir: args.dir)
+
+      _, status = Gitlab::Popen.popen(%w[which gmake])
+      command = status.zero? ? 'gmake' : 'make'
+
+      Dir.chdir(args.dir) do
+        create_gitaly_configuration
+        run_command!([command])
+      end
+    end
+
+    desc "GitLab | Print storage configuration in TOML format"
+    task storage_config: :environment do
+      require 'toml'
+
+      puts "# Gitaly storage configuration generated from #{Gitlab.config.source} on #{Time.current.to_s(:long)}"
+      puts "# This is in TOML format suitable for use in Gitaly's config.toml file."
+
+      puts gitaly_configuration_toml
+    end
+
+    private
+
+    # We cannot create config.toml files for all possible Gitaly configuations.
+    # For instance, if Gitaly is running on another machine then it makes no
+    # sense to write a config.toml file on the current machine. This method will
+    # only generate a configuration for the most common and simplest case: when
+    # we have exactly one Gitaly process and we are sure it is running locally
+    # because it uses a Unix socket.
+    def gitaly_configuration_toml
+      storages = []
+      address = nil
+
+      Gitlab.config.repositories.storages.each do |key, val|
+        if address
+          if address != val['gitaly_address']
+            raise ArgumentError, "Your gitlab.yml contains more than one gitaly_address."
+          end
+        elsif URI(val['gitaly_address']).scheme != 'unix'
+          raise ArgumentError, "Automatic config.toml generation only supports 'unix:' addresses."
+        else
+          address = val['gitaly_address']
+        end
+
+        storages << { name: key, path: val['path'] }
+      end
+      config = { socket_path: address.sub(%r{\Aunix:}, ''), storage: storages }
+      config[:auth] = { token: 'secret' } if Rails.env.test?
+      TOML.dump(config)
+    end
+
+    def create_gitaly_configuration
+      File.open("config.toml", "w") do |f|
+        f.puts gitaly_configuration_toml
+      end
+    rescue ArgumentError => e
+      puts "Skipping config.toml generation:"
+      puts e.message
+    end
+  end
+end