See #505 and #1494. Fix options of Nginx beautifier

src/beautifiers/nginx-beautify.coffee

@@ -6,7 +6,21 @@ module.exports = class NginxBeautify extends Beautifier
   link: "https://github.com/denysvitali/nginxbeautify"
 
   options: {
-    Nginx: true
+    Nginx: {
+      spaces: ["indent_with_tabs", "indent_size", "indent_char", (indent_with_tabs, indent_size, indent_char) ->
+        if indent_with_tabs or indent_char is "\t"
+          0
+        else
+          indent_size
+      ]
+      tabs: ["indent_with_tabs", "indent_size", "indent_char", (indent_with_tabs, indent_size, indent_char) ->
+        if indent_with_tabs or indent_char is "\t"
+          indent_size
+        else
+          0
+      ]
+      dontJoinCurlyBracet: true
+    }
   }
 
   beautify: (text, language, options) ->

src/languages/nginx.coffee

@@ -1,3 +1,11 @@
+# Get Atom defaults
+scope = ['source.conf']
+tabLength = atom?.config.get('editor.tabLength', scope: scope) ? 4
+softTabs = atom?.config.get('editor.softTabs', scope: scope) ? true
+defaultIndentSize = (if softTabs then tabLength else 1)
+defaultIndentChar = (if softTabs then " " else "\t")
+defaultIndentWithTabs = not softTabs
+
 module.exports = {
 
   name: "Nginx"
@@ -20,16 +28,19 @@ module.exports = {
   defaultBeautifier: "Nginx Beautify"
 
   options:
-    spaces:
-      title: "Spaces"
-      type: "number"
-      default: 0
-      description: "Indent with spaces"
-    tabs:
-      title: "Tabs"
-      type: "number"
-      default: 1
-      description: "Indent with tabs"
+    indent_size:
+      type: 'integer'
+      default: defaultIndentSize
+      minimum: 0
+      description: "Indentation size/length"
+    indent_char:
+      type: 'string'
+      default: defaultIndentChar
+      description: "Indentation character"
+    indent_with_tabs:
+      type: 'boolean'
+      default: defaultIndentWithTabs
+      description: "Indentation uses tabs, overrides `Indent Size` and `Indent Char`"
     dontJoinCurlyBracet:
       title: "Don't join curly brackets"
       type: "boolean"