v3.10.0-beta.2 -- Cleanup NPM and git included files (#3412)

* Cleanup NPM and git included files
* Compile Rollup.js on the fly for Node 6 compatibility
* Remove Node 6 from Travis because it never works
* Add note about Node 6 deprecation

.npmignore

@@ -5,6 +5,8 @@ build/
 .grunt/
 benchmark/
 test/
+test/less-bom/
+lib/
 # re-include test files as they can be useful for plugins that do testing
 !test/*.js
 tmp/

.travis.yml

@@ -6,7 +6,6 @@ node_js:
   - "12"
   - "10"
   - "8"
-  - "6"
 before_install:
   # from https://github.com/travis-ci/travis-ci/issues/3225#issuecomment-177592725
   # and also from https://github.com/travis-ci/travis-ci/issues/3225#issuecomment-200965782

Gruntfile.js

@@ -178,6 +178,17 @@ module.exports = function(grunt) {
     // Make the SauceLabs jobs
     ["all"].concat(browserTests).map(makeJob);
 
+    var semver = require('semver');
+    var path = require('path');
+
+    // Handle async / await in Rollup build for tests
+    // Remove this when Node 6 is no longer supported for the build/test process
+    const nodeVersion = semver.major(process.versions.node);
+    let scriptRuntime = 'node';
+    if (nodeVersion < 8) {
+        scriptRuntime = path.resolve(path.join('node_modules', '.bin', 'babel-node')) + ' --presets=@babel/env';
+    }
+
     // Project configuration.
     grunt.initConfig({
         shell: {
@@ -190,14 +201,14 @@ module.exports = function(grunt) {
             },
             build: {
                 command: [
-                    "node build/rollup.js --dist"
+                    scriptRuntime + " build/rollup.js --dist"
                 ].join(" && ")
             },
             testbuild: {
                 command: [
-                    "node build/rollup.js --lessc --out=./tmp/lessc",
-                    "node build/rollup.js --node --out=./tmp/less.cjs.js",
-                    "node build/rollup.js --browser --out=./test/browser/less.min.js"
+                    scriptRuntime + " build/rollup.js --lessc --out=./tmp/lessc",
+                    scriptRuntime + " build/rollup.js --node --out=./tmp/less.cjs.js",
+                    scriptRuntime + " build/rollup.js --browser --out=./test/browser/less.min.js"
                 ].join(" && ")
             },
             test: {

bin/lessc

@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+// AUTO-GENERATED BY ROLLUP
 
 'use strict';
 

build/rollup.js

@@ -127,7 +127,7 @@ async function buildLessC() {
 
     await bundle.write({
         file: path.join(rootPath, file),
-        banner: '#!/usr/bin/env node\n',
+        banner: '#!/usr/bin/env node\n// AUTO-GENERATED BY ROLLUP\n',
         format: 'cjs',
         interop: false
     });
@@ -144,9 +144,5 @@ async function build() {
         await buildNode();
     }
 }
-try {
-    build();
-}
-catch (e) {
-    throw e;
-}
+
+build();

dist/less.js

@@ -1,5 +1,5 @@
 /**
- * Less - Leaner CSS v3.10.0-beta
+ * Less - Leaner CSS v3.10.0-beta.2
  * http://lesscss.org
  * 
  * Copyright (c) 2009-2019, Alexis Sellier <self@cloudhead.net>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "less",
-  "version": "3.10.0-beta",
+  "version": "3.10.0-beta.2",
   "description": "Leaner CSS",
   "homepage": "http://lesscss.org",
   "author": {
@@ -51,6 +51,7 @@
   "devDependencies": {
     "@babel/cli": "^7.5.5",
     "@babel/core": "^7.5.5",
+    "@babel/node": "^7.5.5",
     "@babel/preset-env": "^7.5.5",
     "@typescript-eslint/eslint-plugin": "^1.13.0",
     "@typescript-eslint/parser": "^1.13.0",
@@ -81,6 +82,7 @@
     "rollup-plugin-commonjs": "^10.0.1",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-terser": "^5.1.1",
+    "semver": "^6.3.0",
     "time-grunt": "^1.3.0",
     "typescript": "^3.5.3",
     "uikit": "2.27.4"

test/less-test.js

@@ -7,7 +7,16 @@ module.exports = function() {
         doBomTest = false,
         clone = require('clone');
 
-    var less = require('../tmp/less.cjs.js');
+    var less;
+
+    // Dist fallback for NPM-installed Less (for plugins that do testing)
+    try {
+        less = require('../tmp/less.cjs.js');
+    }
+    catch (e) {
+        less = require('../dist/less.cjs.js');
+    }
+
     var stylize = require('../lib/less-node/lessc-helper').stylize;
 
     var globals = Object.keys(global);

test/modify-vars.js

@@ -1,5 +1,14 @@
-var less = require('../tmp/less.cjs.js'),
-    fs = require('fs');
+var less;
+
+// Dist fallback for NPM-installed Less (for plugins that do testing)
+try {
+    less = require('../tmp/less.cjs.js');
+}
+catch (e) {
+    less = require('../dist/less.cjs.js');
+}
+
+var fs = require('fs');
 
 var input = fs.readFileSync('./test/less/modifyVars/extended.less', 'utf8');
 var expectedCss = fs.readFileSync('./test/css/modifyVars/extended.css', 'utf8');