devMode

Author: Alexey Litvinov

lib/index.js

@@ -21,6 +21,7 @@ const debugFetch = require('debug')('css-modules:fetch');
 const debugSetup = require('debug')('css-modules:setup');
 
 module.exports = function setupHook({
+  devMode,
   extensions = '.css',
   ignore,
   preprocessCss = identity,
@@ -39,6 +40,11 @@ module.exports = function setupHook({
 
   const tokensByFile = {};
 
+  // debug option is preferred NODE_ENV === 'development'
+  const debugMode = typeof devMode !== 'undefined'
+    ? devMode
+    : process.env.NODE_ENV === 'development';
+
   let scopedName;
   if (generateScopedName) {
     scopedName = typeof generateScopedName !== 'function'
@@ -67,8 +73,6 @@ module.exports = function setupHook({
   // https://github.com/postcss/postcss#options
   const runner = postcss(plugins);
 
-  // https://github.com/postcss/postcss/blob/master/docs/api.md#processorprocesscss-opts
-
   /**
    * @todo   think about replacing sequential fetch function calls with requires calls
    * @param  {string} _to
@@ -99,7 +103,7 @@ module.exports = function setupHook({
 
     tokens = lazyResult.root.tokens;
 
-    if (process.env.NODE_ENV !== 'development') {
+    if (!debugMode) {
       // updating cache
       tokensByFile[filename] = tokens;
     } else {

lib/validate.js

@@ -4,6 +4,7 @@ const keys = require('lodash').keys;
 
 const rules = {
   // hook
+  devMode:            'boolean',
   extensions:         'array|string',
   ignore:             'function|regex|string',
   preprocessCss:      'function',
@@ -21,6 +22,7 @@ const rules = {
 
 const tests = {
   array:    require('lodash').isArray,
+  boolean:  require('lodash').isBoolean,
   function: require('lodash').isFunction,
   regex:    require('lodash').isRegExp,
   string:   require('lodash').isString,