Less 3

package.json

@@ -4,8 +4,11 @@
   "description": "Less compile cache",
   "main": "./lib/less-cache",
   "scripts": {
-    "prepublish": "grunt clean lint coffee",
-    "test": "grunt test"
+    "clean": "shx rm -rf lib",
+    "test": "jasmine-focused --captureExceptions --coffee spec",
+    "coffee": "npm run clean && shx cp -r src lib && coffee -c -M -o lib lib && shx rm -rf lib/*.coffee",
+    "build": "npm run coffee",
+    "prepare": "npm run build"
   },
   "repository": {
     "type": "git",
@@ -27,20 +30,18 @@
     }
   ],
   "dependencies": {
-    "fs-plus": "^3.0.0",
-    "less": "^2.7.1",
-    "underscore-plus": "1.x",
-    "walkdir": "0.0.11"
+    "fs-plus": "^3.1.1",
+    "less": "^3.12.2",
+    "underscore-plus": "^1.7.0",
+    "walkdir": "^0.4.1"
   },
   "devDependencies": {
-    "fstream": "^1.0.10",
-    "grunt": "^1.0.1",
-    "grunt-cli": "^1.2.0",
-    "grunt-coffeelint": "0.0.16",
-    "grunt-contrib-coffee": "^1.0.0",
-    "grunt-shell": "^1.3.0",
-    "jasmine-focused": "1.x",
-    "temp": "^0.8.3",
-    "tmp": "0.0.28"
+    "coffeescript": "^1.12.7",
+    "fstream": "^1.0.12",
+    "jasmine-focused": "^1",
+    "temp": "^0.9.4",
+    "tmp": "0.2.1",
+    "shx": "^0.3.3",
+    "cross-env": "^7.0.3"
   }
 }

src/less-cache.coffee

@@ -107,7 +107,12 @@ class LessCache
 
   observeImportedFilePaths: (callback) ->
     importedPaths = []
-    lessFs ?= require 'less/lib/less-node/fs.js'
+    # load or assign less and lessFs
+    if (less == null)
+      less = require 'less'
+      lessFs = less.fs
+    else if (lessFs == null)
+      lessFs = less.fs
     originalFsReadFileSync = lessFs.readFileSync
     lessFs.readFileSync = (filePath, args...) =>
       relativeFilePath = @relativize(@resourcePath, filePath) if @resourcePath
@@ -196,7 +201,12 @@ class LessCache
   parseLess: (filePath, contents) ->
     css = null
     options = filename: filePath, syncImport: true, paths: @importPaths
-    less ?= require('less')
+    # load or assign less and lessFs
+    if (less == null)
+      less = require 'less'
+      lessFs = less.fs
+    else if (lessFs == null)
+      lessFs = less.fs
     imports = @observeImportedFilePaths ->
       less.render contents, options, (error, result) ->
         if error?