Add base for normalizing html

1 files changed, 26 insertions, 1 deletions

diff --git a/lib/utils/command.js b/lib/utils/command.js
index f395fa1..4269d6c 100644
--- a/lib/utils/command.js
+++ b/lib/utils/command.js
@@ -13,7 +13,32 @@ function exec(command, options) {
     return Promise.nfcall(childProcess.exec, command, options);
 }
 
+// Spawn an executable
+function spawn(command, args, options) {
+    if (!isAvailable) {
+        return Promise.reject(new Error('Command execution is not possible on this platform'));
+    }
+
+    var d = Promise.deferred();
+    var child = childProcess.spawn(command, args, options);
+
+    child.on('error', function(error) {
+        return d.reject(error);
+    });
+
+    child.on('close', function(code) {
+        if (code === 0) {
+            d.resolve();
+        } else {
+            d.reject(new Error('Error with command "'+command+'"'));
+        }
+    });
+
+    return d.promise;
+}
+
 module.exports = {
     isAvailable: isAvailable,
-    exec: exec
+    exec: exec,
+    spawn: spawn
 };