Add a run_eslint wrapper script

catapult_build/js_checks.py

Index: catapult_build/js_checks.py
diff --git a/catapult_build/js_checks.py b/catapult_build/js_checks.py
index 61a5eeaa56fc72444a8b114fb5d0926fdc59d7a4..d96ce0cfc861fe568541f64246549cd18ed54e39 100644
--- a/catapult_build/js_checks.py
+++ b/catapult_build/js_checks.py
@@ -4,7 +4,7 @@
 

[nednguyen, 2016/09/23 10:17:49]

Hmhh, shouldn't file be moved to eslint module?

[charliea (OOO until 10-5), 2016/09/23 13:06:34]

IDTS: there are still non-eslint-based javascript checks that we do, like making
sure that "const" is never used. Eventually, we should kill all of these
non-eslint-based checks, but for now, I think it makes sense to have them done
outside of the eslint/ directory.

 import re
 
-from node_runner import node_util
+from eslint import eslint
 from py_vulcanize import strip_js_comments
 
 from catapult_build import parse_html
@@ -84,7 +84,7 @@ class JSChecker(object):
         error_lines += filter(None, [self.ConstCheck(i, line)])
 
     if affected_js_files:
-      eslint_output = node_util.RunEslint(
+      eslint_output = eslint.RunEslint(
           [f.AbsoluteLocalPath() for f in affected_js_files]).rstrip()
 
       if eslint_output: