module-alias - npm Package Compare versions

Comparing version 2.0.6 to 2.1.0

index.js

@@ -14,3 +14,3 @@ 'use strict'
 var moduleAliases = {}
-var moduleAliasNames = [];
+var moduleAliasNames = []
 
@@ -31,10 +31,16 @@ var oldNodeModulePaths = Module._nodeModulePaths
 var oldResolveFilename = Module._resolveFilename
-Module._resolveFilename = function (request, parent, isMain) {
+Module._resolveFilename = function (request, parentModule, isMain) {
   for (var i = moduleAliasNames.length; i-- > 0;) {
     var alias = moduleAliasNames[i]
     if (isPathMatchesAlias(request, alias)) {
-      request = nodePath.join(
-        moduleAliases[alias],
-        request.substr(alias.length)
-      )
+      var aliasTarget = moduleAliases[alias]
+      // Custom function handler
+      if (typeof moduleAliases[alias] === 'function') {
+        var fromPath = parentModule.filename
+        aliasTarget = moduleAliases[alias](fromPath, request, alias)
+        if (!aliasTarget || typeof aliasTarget !== 'string') {
+          throw new Error('[module-alias] Expecting custom handler function to return path.')
+        }
+      }
+      request = nodePath.join(aliasTarget, request.substr(alias.length))
       // Only use the first match
@@ -45,3 +51,3 @@ break
 
-  return oldResolveFilename.call(this, request, parent, isMain)
+  return oldResolveFilename.call(this, request, parentModule, isMain)
 }
@@ -48,0 +54,0 @@

package.json

 {
   "name": "module-alias",
-  "description": "Create aliases of directories and register custom module paths in NodeJS like a boss!",
-  "version": "2.0.6",
+  "description": "Create aliases of directories and register custom module paths",
+  "version": "2.1.0",
   "author": {
@@ -38,3 +38,2 @@ "name": "Nick Gavrilov",
   },
-  "dependencies": {},
   "devDependencies": {
@@ -41,0 +40,0 @@ "chai": "^3.5.0",

README.md

@@ -100,2 +100,13 @@ # module-alias
 
+// Custom handler function (starting from v2.1)
+moduleAlias.addAlias('@src', (fromPath, request, alias) => {
+  // fromPath - Full path of the file from which `require` was called
+  // request - The path (first argument) that was passed into `require`
+  // alias - The same alias that was passed as first argument to `addAlias` (`@src` in this case)
+
+  // Return any custom target path for the `@src` alias depending on arguments
+  if (fromPath.startsWith(__dirname + '/others')) return __dirname + '/others'
+  return __dirname + '/src'
+})
+
 //
@@ -102,0 +113,0 @@ // Register custom modules directory

No alert changes

Improved metrics

Total package byte prevSize

12033

increased by9.12%

Number of package files

8

increased by60%

Lines of code

162

increased by5.88%

Number of lines in readme file

156

increased by7.59%

No dependency changes