Support regex in format-on-save

Author: Ampretuzo

CodeFormatter.sublime-settings

@@ -4,7 +4,7 @@
     "codeformatter_go_options":
     {
         "syntaxes": "go",
-        "format_on_save": false // Boolean
+        "format_on_save": false // Format on save. Either a boolean (true/false) or a string regexp tested on filename. Example : "^((?!.min.|vendor).)*$"
 
         // Optionless support
     },

README.md

@@ -281,7 +281,7 @@ Currently no options are supported:
     "codeformatter_go_options":
     {
         "syntaxes": "go",
-        "format_on_save": false // Boolean
+        "format_on_save": false // Format on save. Either a boolean (true/false) or a string regexp tested on filename. Example : "^((?!.min.|vendor).)*$"
     }
 ```
 

codeformatter/goformatter.py

@@ -1,3 +1,5 @@
+import re
+
 import sublime
 import subprocess
 
@@ -32,5 +34,7 @@ def format(self, text):
     def format_on_save_enabled(self, _):
         format_on_save = False
         if ('format_on_save' in self.opts and self.opts['format_on_save']):
-            format_on_save = True
+            format_on_save = self.opts['format_on_save']
+        if (isinstance(format_on_save, str)):
+            format_on_save = re.search(format_on_save, file_name) is not None
         return format_on_save