1 files changed, 42 insertions, 0 deletions
diff --git a/lib/system_check/app/git_config_check.rb b/lib/system_check/app/git_config_check.rb
new file mode 100644
index 00000000000..198867f7ac6
--- /dev/null
+++ b/lib/system_check/app/git_config_check.rb
@@ -0,0 +1,42 @@
+module SystemCheck
+  module App
+    class GitConfigCheck < SystemCheck::BaseCheck
+      OPTIONS = {
+        'core.autocrlf' => 'input'
+      }.freeze
+
+      set_name 'Git configured correctly?'
+
+      def check?
+        correct_options = OPTIONS.map do |name, value|
+          run_command(%W(#{Gitlab.config.git.bin_path} config --global --get #{name})).try(:squish) == value
+        end
+
+        correct_options.all?
+      end
+
+      # Tries to configure git itself
+      #
+      # Returns true if all subcommands were successful (according to their exit code)
+      # Returns false if any or all subcommands failed.
+      def repair!
+        return false unless is_gitlab_user?
+
+        command_success = OPTIONS.map do |name, value|
+          system(*%W(#{Gitlab.config.git.bin_path} config --global #{name} #{value}))
+        end
+
+        command_success.all?
+      end
+
+      def show_error
+        try_fixing_it(
+          sudo_gitlab("\"#{Gitlab.config.git.bin_path}\" config --global core.autocrlf \"#{OPTIONS['core.autocrlf']}\"")
+        )
+        for_more_information(
+          see_installation_guide_section 'GitLab'
+        )
+      end
+    end
+  end
+end