From 6638fc164970caf866344e9ef6a6127e2e2a6081 Mon Sep 17 00:00:00 2001
From: Chris Rebert <code@rebertia.com>
Date: Sun, 18 May 2014 15:53:40 -0700
Subject: [PATCH] Gruntfile: skip steps when $TWBS_DO_*=0

---
 Gruntfile.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index ecf46a9992..2c33b474ec 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -404,6 +404,9 @@ module.exports = function (grunt) {
   var runSubset = function (subset) {
     return !process.env.TWBS_TEST || process.env.TWBS_TEST === subset;
   };
+  var isUndefOrNonZero = function (val) {
+    return val === undefined || val !== '0';
+  };
 
   // Test task.
   var testSubtasks = [];
@@ -412,13 +415,17 @@ module.exports = function (grunt) {
     testSubtasks = testSubtasks.concat(['dist-css', 'csslint', 'jshint', 'jscs', 'qunit', 'build-customizer-html']);
   }
   // Skip HTML validation if running a different subset of the test suite
-  if (runSubset('validate-html')) {
+  if (runSubset('validate-html') &&
+      // Skip HTML5 validator on Travis when [skip validator] is in the commit message
+      isUndefOrNonZero(process.env.TWBS_DO_VALIDATOR)) {
     testSubtasks.push('validate-html');
   }
   // Only run Sauce Labs tests if there's a Sauce access key
   if (typeof process.env.SAUCE_ACCESS_KEY !== 'undefined' &&
       // Skip Sauce if running a different subset of the test suite
-      runSubset('sauce-js-unit')) {
+      runSubset('sauce-js-unit') &&
+      // Skip Sauce on Travis when [skip sauce] is in the commit message
+      isUndefOrNonZero(process.env.TWBS_DO_SAUCE)) {
     testSubtasks.push('connect');
     testSubtasks.push('saucelabs-qunit');
   }