feat: option swallowError to not fail webpack on failed scripts

Author: Michel Hofmann

README.md

@@ -79,6 +79,7 @@ Once the build finishes, a child process is spawned firing both a python and nod
 * `dev`: switch for development environments. This causes scripts to execute once. Useful for running HMR on webpack-dev-server or webpack watch mode. **Default: true**
 * `safe`: switches script execution process from spawn to exec. If running into problems with spawn, turn this setting on. **Default: false**
 * `verbose`: **DEPRECATED** enable for verbose output. **Default: false**
+* `swallowError`: ignore script errors (useful in watch mode) **Default: false**
 
 ### Developing
 

src/webpack-shell-plugin.js

@@ -8,7 +8,8 @@ const defaultOptions = {
   onBuildExit: [],
   dev: true,
   verbose: false,
-  safe: false
+  safe: false,
+  swallowError: false
 };
 
 export default class WebpackShellPlugin {
@@ -17,7 +18,7 @@ export default class WebpackShellPlugin {
   }
 
   puts(error, stdout, stderr) {
-    if (error) {
+    if (error && !swallowError) {
       throw error;
     }
   }