Add promise support for fs.rm()

Fixes #841

lib/fs/__tests__/rm.test.js

@@ -0,0 +1,30 @@
+'use strict'
+
+const fse = require('../..')
+const os = require('os')
+const path = require('path')
+const assert = require('assert')
+const atLeastNode = require('at-least-node')
+
+/* eslint-env mocha */
+
+// Used for tests on Node 14.14.0+ only
+const describeNode14 = atLeastNode('14.14.0') ? describe : describe.skip
+
+describeNode14('fs.rm', () => {
+  let TEST_FILE
+
+  beforeEach(done => {
+    TEST_FILE = path.join(os.tmpdir(), 'fs-extra', 'fs-rm')
+    fse.remove(TEST_FILE, done)
+  })
+
+  afterEach(done => fse.remove(TEST_FILE, done))
+
+  it('supports promises', () => {
+    fse.writeFileSync(TEST_FILE, 'hello')
+    return fse.rm(TEST_FILE).then(() => {
+      assert(!fse.pathExistsSync(TEST_FILE))
+    })
+  })
+})

lib/fs/index.js

@@ -31,6 +31,7 @@ const api = [
   'readlink',
   'realpath',
   'rename',
+  'rm',
   'rmdir',
   'stat',
   'symlink',
@@ -41,6 +42,7 @@ const api = [
 ].filter(key => {
   // Some commands are not available on some systems. Ex:
   // fs.opendir was added in Node.js v12.12.0
+  // fs.rm was added in Node.js v14.14.0
   // fs.lchown is not available on at least some Linux
   return typeof fs[key] === 'function'
 })