Implements skipNodeModules

Author: Maël Nison

lib/node-modules-paths.js

@@ -20,25 +20,29 @@ module.exports = function nodeModulesPaths(start, opts) {
         }
     }
 
-    var prefix = '/';
-    if ((/^([A-Za-z]:)/).test(absoluteStart)) {
-        prefix = '';
-    } else if ((/^\\\\/).test(absoluteStart)) {
-        prefix = '\\\\';
-    }
+    var dirs = [];
 
-    var paths = [absoluteStart];
-    var parsed = parse(absoluteStart);
-    while (parsed.dir !== paths[paths.length - 1]) {
-        paths.push(parsed.dir);
-        parsed = parse(parsed.dir);
-    }
+    if (!opts || !opts.skipNodeModules) {
+        var prefix = '/';
+        if ((/^([A-Za-z]:)/).test(absoluteStart)) {
+            prefix = '';
+        } else if ((/^\\\\/).test(absoluteStart)) {
+            prefix = '\\\\';
+        }
 
-    var dirs = paths.reduce(function (dirs, aPath) {
-        return dirs.concat(modules.map(function (moduleDir) {
-            return path.join(prefix, aPath, moduleDir);
-        }));
-    }, []);
+        var paths = [absoluteStart];
+        var parsed = parse(absoluteStart);
+        while (parsed.dir !== paths[paths.length - 1]) {
+            paths.push(parsed.dir);
+            parsed = parse(parsed.dir);
+        }
+
+        dirs = paths.reduce(function (dirs, aPath) {
+            return dirs.concat(modules.map(function (moduleDir) {
+                return path.join(prefix, aPath, moduleDir);
+            }));
+        }, []);
+    }
 
     return opts && opts.paths ? dirs.concat(opts.paths) : dirs;
 };

test/node-modules-paths.js

@@ -49,6 +49,13 @@ test('node-modules-paths', function (t) {
         t.end();
     });
 
+    t.test('with skipNodeModules=true option', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, { skipNodeModules: true });
+        t.deepEqual(dirs, [], 'no node_modules was computed');
+        t.end();
+    });
+
     t.test('with paths option', function (t) {
         var start = path.join(__dirname, 'resolver');
         var paths = ['a', 'b'];