Fixes for windows subsystem for linux (#66)

* fix support for wsl

Author: n-pn

Crystal.sublime-build

@@ -4,6 +4,6 @@
 	"selector": "source.crystal",
 	"quiet": true,
 	"windows": {
-		"cmd": ["bash", "-c", "crystal", "run", "--no-color", "$file"]
+		"cmd": ["wsl", "crystal", "run", "--no-color", "$file_name"]
 	}
 }

crystal_format.py

@@ -2,6 +2,7 @@
 import subprocess
 import sys
 import re
+import os
 
 import sublime_plugin
 import sublime
@@ -33,6 +34,9 @@ def run(self, edit):
     #command = [settings.get("crystal_cmd"), "tool", "format", "-", "--format", "json"]
     command = [settings.get("crystal_cmd"), "tool", "format", "-", "--no-color"]
 
+    # for Windows Subsystem for Linux
+    if os.name == "nt": command.insert(0, "wsl")
+
     popen_args = dict(args=command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     # Prevent flashing terminal windows
     if sys.platform.startswith('win'):