Add copy once functionality, tests

Resolve vladshcherbin#20

Author: vladshcherbin

jest.config.js

@@ -5,6 +5,7 @@ module.exports = {
   ],
   watchPathIgnorePatterns: [
     '<rootDir>/tests/fixtures/build',
-    '<rootDir>/tests/fixtures/dist'
+    '<rootDir>/tests/fixtures/dist',
+    '<rootDir>/tests/fixtures/src/index.js'
   ]
 }

package.json

@@ -29,6 +29,7 @@
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-plugin-import": "^2.17.2",
     "jest": "^24.8.0",
+    "replace-in-file": "^4.1.0",
     "rimraf": "^2.6.3",
     "rollup": "^1.11.3",
     "rollup-plugin-auto-external": "^2.0.0",

src/index.js

@@ -29,15 +29,22 @@ function generateCopyTarget(src, dest, rename) {
 
 export default function copy(options = {}) {
   const {
+    copyOnce = false,
     hook = 'buildEnd',
     targets = [],
     verbose = false,
     ...restPluginOptions
   } = options
 
+  let copied = false
+
   return {
     name: 'copy',
     [hook]: async () => {
+      if (copyOnce && copied) {
+        return
+      }
+
       const copyTargets = []
 
       if (Array.isArray(targets) && targets.length) {
@@ -90,6 +97,8 @@ export default function copy(options = {}) {
       } else if (verbose) {
         console.log(yellow('no items to copy'))
       }
+
+      copied = true
     }
   }
 }

tests/index.test.js

@@ -1,10 +1,15 @@
-import { rollup } from 'rollup'
+import { rollup, watch } from 'rollup'
 import fs from 'fs-extra'
+import replace from 'replace-in-file'
 import { bold, yellow, green } from 'colorette'
 import copy from '../src'
 
 process.chdir(`${__dirname}/fixtures`)
 
+function sleep(ms) {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}
+
 afterEach(async () => {
   await fs.remove('build')
   await fs.remove('dist')
@@ -289,6 +294,50 @@ describe('Options', () => {
     expect(await fs.pathExists('dist/css/css-2.css')).toBe(true)
   })
 
+  test('Copy once', async () => {
+    const watcher = watch({
+      input: 'src/index.js',
+      output: {
+        dir: 'build',
+        format: 'esm'
+      },
+      plugins: [
+        copy({
+          targets: [
+            { src: 'src/assets/asset-1.js', dest: 'dist' }
+          ],
+          copyOnce: true
+        })
+      ]
+    })
+
+    await sleep(1000)
+
+    expect(await fs.pathExists('dist/asset-1.js')).toBe(true)
+
+    await fs.remove('dist')
+
+    expect(await fs.pathExists('dist/asset-1.js')).toBe(false)
+
+    await replace({
+      files: 'src/index.js',
+      from: 'hey',
+      to: 'ho'
+    })
+
+    await sleep(1000)
+
+    expect(await fs.pathExists('dist/asset-1.js')).toBe(false)
+
+    watcher.close()
+
+    await replace({
+      files: 'src/index.js',
+      from: 'ho',
+      to: 'hey'
+    })
+  })
+
   test('Rest options', async () => {
     await expect(build({
       targets: [

yarn.lock

@@ -1317,6 +1317,15 @@ cliui@^4.0.0:
     strip-ansi "^4.0.0"
     wrap-ansi "^2.0.0"
 
+cliui@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-5.0.0.tgz#deefcfdb2e800784aa34f46fa08e06851c7bbbc5"
+  integrity sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==
+  dependencies:
+    string-width "^3.1.0"
+    strip-ansi "^5.2.0"
+    wrap-ansi "^5.1.0"
+
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -2103,6 +2112,11 @@ get-caller-file@^1.0.1:
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
   integrity sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==
 
+get-caller-file@^2.0.1:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
+  integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
+
 get-stream@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
@@ -3630,7 +3644,7 @@ os-homedir@^1.0.0:
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
   integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
-os-locale@^3.0.0:
+os-locale@^3.0.0, os-locale@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
   integrity sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==
@@ -4055,6 +4069,15 @@ repeat-string@^1.6.1:
   resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
   integrity sha1-jcrkcOHIirwtYA//Sndihtp15jc=
 
+replace-in-file@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/replace-in-file/-/replace-in-file-4.1.0.tgz#07846245a4b98a8bc5f5f9c3e3e368fa12b18bf7"
+  integrity sha512-5IANGPAQZVO9PHEjaRz3EHs7eQulv1cvOu2hRi7+Ern+zXIzdslSGX9MIfcI1anaGCpICK2l4R4YOOdThsFryQ==
+  dependencies:
+    chalk "^2.4.2"
+    glob "^7.1.3"
+    yargs "^13.2.2"
+
 [email protected]:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.2.tgz#339f6aababcafdb31c799ff158700336301d3346"
@@ -4498,7 +4521,7 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string-width@^3.0.0:
+string-width@^3.0.0, string-width@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
   integrity sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==
@@ -4528,7 +4551,7 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
-strip-ansi@^5.0.0, strip-ansi@^5.1.0:
+strip-ansi@^5.0.0, strip-ansi@^5.1.0, strip-ansi@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
   integrity sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==
@@ -4917,6 +4940,15 @@ wrap-ansi@^2.0.0:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"
 
+wrap-ansi@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-5.1.0.tgz#1fd1f67235d5b6d0fee781056001bfb694c03b09"
+  integrity sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==
+  dependencies:
+    ansi-styles "^3.2.0"
+    string-width "^3.0.0"
+    strip-ansi "^5.0.0"
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
@@ -4950,7 +4982,7 @@ xml-name-validator@^3.0.0:
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
   integrity sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==
 
-"y18n@^3.2.1 || ^4.0.0":
+"y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
   integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
@@ -4968,6 +5000,14 @@ yargs-parser@^11.1.1:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
+yargs-parser@^13.1.0:
+  version "13.1.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"
+  integrity sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==
+  dependencies:
+    camelcase "^5.0.0"
+    decamelize "^1.2.0"
+
 yargs@^12.0.2:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
@@ -4985,3 +5025,20 @@ yargs@^12.0.2:
     which-module "^2.0.0"
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^11.1.1"
+
+yargs@^13.2.2:
+  version "13.2.4"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.2.4.tgz#0b562b794016eb9651b98bd37acf364aa5d6dc83"
+  integrity sha512-HG/DWAJa1PAnHT9JAhNa8AbAv3FPaiLzioSjCcmuXXhP8MlpHO5vwls4g4j6n30Z74GVQj8Xa62dWVx1QCGklg==
+  dependencies:
+    cliui "^5.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^2.0.1"
+    os-locale "^3.1.0"
+    require-directory "^2.1.1"
+    require-main-filename "^2.0.0"
+    set-blocking "^2.0.0"
+    string-width "^3.0.0"
+    which-module "^2.0.0"
+    y18n "^4.0.0"
+    yargs-parser "^13.1.0"