SublimeText 3 - anaconda_go plugin - Workaround for 'fmt on save' bug

goimports_and_save.py

"""
Workaround for https://github.com/DamnWidget/anaconda_go/issues/9
"""
import re
import sublime, sublime_plugin

class GoImportsOnSave(sublime_plugin.EventListener):
	"""
	Run goimports against Go language syntax documents, on save.
	For use in combination with the GoImports SublimeText plugin package.
	"""
	# Supported syntax
	_SYNTAX = frozenset(["go"])
	_RX_SOURCE = re.compile(r'source\.(\S+)')
	
	def on_pre_save(self, view):
		enabled = view.settings().get("goimports_on_save", False)
		if not enabled:
			return
		
		scope = view.scope_name(0)
		match = self._RX_SOURCE.match(scope)
		if not match:
			return 
		
		syntax = match.group(1)
		if syntax.lower() not in self._SYNTAX:
			return
		
		try:
			view.run_command("go_imports")
		except Exception as e:
			pass