fix: drop webpack version detector

Author: kisenka

lib/loader.js

@@ -4,7 +4,6 @@ const SVGCompiler = require('svg-baker');
 
 const { NAMESPACE } = require('./config');
 const configure = require('./configurator');
-const { getWebpackVersion } = require('./utils');
 const Exceptions = require('./exceptions');
 
 let svgCompiler = new SVGCompiler();
@@ -31,13 +30,8 @@ module.exports = function loader(content) {
 
   const configObj = { context: loaderContext };
 
-  if (getWebpackVersion.IS_4) {
-    configObj.config = loaderContext.query;
-    configObj.target = loaderContext.target;
-  } else {
-    configObj.config = matchedRules;
-    configObj.target = loaderContext.options.target || loaderContext.target;
-  }
+  configObj.config = matchedRules;
+  configObj.target = loaderContext.target;
 
   /**
    * @type {SVGSpriteLoaderConfig}

lib/plugin.js

@@ -9,12 +9,9 @@ const {
   MappedList,
   replaceInModuleSource,
   replaceSpritePlaceholder,
-  getWebpackVersion,
   getMatchedRule
 } = require('./utils');
 
-const webpackVersion = parseInt(getWebpackVersion(), 10);
-
 const defaultConfig = {
   plainSprite: false,
   spriteAttrs: {}
@@ -187,21 +184,15 @@ class SVGSpritePlugin {
     chunks.forEach((chunk) => {
       let modules;
 
-      switch (webpackVersion) {
-        case 4:
-          modules = Array.from(chunk.modulesIterable);
-          break;
-        case 3:
-          modules = chunk.mapModules();
-          break;
-        default:
-          ({ modules } = chunk);
-          break;
+      if (chunk.modulesIterable) {
+        modules = Array.from(chunk.modulesIterable);
+      } else {
+        modules = chunk.modules;
       }
 
       modules
-      // dirty hack to identify modules extracted by extract-text-webpack-plugin
-      // TODO refactor
+        // dirty hack to identify modules extracted by extract-text-webpack-plugin
+        // TODO refactor
         .filter(module => '_originalModule' in module)
         .forEach(module => replaceInModuleSource(module, replacements));
     });

lib/utils/get-module-chunk.js

@@ -1,5 +1,3 @@
-const webpackVersion = require('./get-webpack-version');
-
 /**
  * Find nearest module chunk (not sure that is reliable method, but who cares).
  * @see http://stackoverflow.com/questions/43202761/how-to-determine-all-module-chunks-in-webpack
@@ -10,9 +8,9 @@ const webpackVersion = require('./get-webpack-version');
 function getModuleChunk(module, modules) {
   let chunks;
 
-  if (webpackVersion.IS_4) {
+  if (module.chunksIterable) {
     chunks = Array.from(module.chunksIterable);
-  } else if (parseInt(webpackVersion(), 10) >= 3) {
+  } else if (module.mapChunks) {
     chunks = module.mapChunks();
   } else {
     chunks = module.chunks;

lib/utils/index.js

@@ -5,7 +5,6 @@ module.exports.getAllModules = require('./get-all-modules');
 // module.exports.getLoaderOptions = require('./get-loader-options');
 module.exports.getModuleChunk = require('./get-module-chunk');
 module.exports.getMatchedRule = require('./get-matched-rule');
-module.exports.getWebpackVersion = require('./get-webpack-version');
 module.exports.isModuleShouldBeExtracted = require('./is-module-should-be-extracted');
 module.exports.interpolate = require('./interpolate');
 module.exports.isWebpack1 = require('./is-webpack-1');