fix: remove dependency on copy-template-dir (#6659)

package.json

@@ -99,7 +99,6 @@
     "configstore": "6.0.0",
     "content-type": "1.0.5",
     "cookie": "0.6.0",
-    "copy-template-dir": "1.4.0",
     "cron-parser": "4.9.0",
     "debug": "4.3.4",
     "decache": "4.6.2",
@@ -144,6 +143,8 @@
     "lodash": "4.17.21",
     "log-symbols": "6.0.0",
     "log-update": "6.0.0",
+    "maxstache": "^1.0.7",
+    "maxstache-stream": "^1.0.4",
     "multiparty": "4.2.3",
     "netlify": "13.1.16",
     "netlify-headers-parser": "7.1.4",
@@ -163,6 +164,7 @@
     "pump": "3.0.0",
     "raw-body": "2.5.2",
     "read-package-up": "11.0.0",
+    "readdirp": "^3.6.0",
     "semver": "7.6.2",
     "source-map-support": "0.5.21",
     "strip-ansi-control-characters": "2.0.0",

src/commands/functions/functions-create.ts

@@ -5,11 +5,8 @@ import { createRequire } from 'module'
 import path, { dirname, join, relative } from 'path'
 import process from 'process'
 import { fileURLToPath, pathToFileURL } from 'url'
-import { promisify } from 'util'
 
 import { OptionValues } from 'commander'
-// @ts-expect-error TS(7016) FIXME: Could not find a declaration file for module 'copy... Remove this comment to see the full error message
-import copyTemplateDirOriginal from 'copy-template-dir'
 import { findUp } from 'find-up'
 import fuzzy from 'fuzzy'
 import inquirer from 'inquirer'
@@ -19,13 +16,12 @@ import ora from 'ora'
 import { fileExistsAsync } from '../../lib/fs.js'
 import { getAddons, getCurrentAddon, getSiteData } from '../../utils/addons/prepare.js'
 import { NETLIFYDEVERR, NETLIFYDEVLOG, NETLIFYDEVWARN, chalk, error, log } from '../../utils/command-helpers.js'
+import { copyTemplateDir } from '../../utils/copy-template-dir/copy-template-dir.js'
 import { getDotEnvVariables, injectEnvVariables } from '../../utils/dev.js'
 import execa from '../../utils/execa.js'
 import { readRepoURL, validateRepoURL } from '../../utils/read-repo-url.js'
 import BaseCommand from '../base-command.js'
 
-const copyTemplateDir = promisify(copyTemplateDirOriginal)
-
 const require = createRequire(import.meta.url)
 
 const templatesDir = path.resolve(dirname(fileURLToPath(import.meta.url)), '../../../functions-templates')
@@ -523,7 +519,6 @@ const scaffoldFromTemplate = async function (command, options, argumentName, fun
     // be removed before the command finishes.
     const omittedFromOutput = new Set(['.netlify-function-template.mjs', 'package.json', 'package-lock.json'])
     const createdFiles = await copyTemplateDir(pathToTemplate, functionPath, vars)
-    // @ts-expect-error TS(7006) FIXME: Parameter 'filePath' implicitly has an 'any' type.
     createdFiles.forEach((filePath) => {
       const filename = path.basename(filePath)
 

src/utils/copy-template-dir/copy-template-dir.ts

@@ -0,0 +1,92 @@
+// License for copy-template-dir.
+// Original repository: https://github.com/yoshuawuyts/copy-template-dir
+
+// The MIT License (MIT)
+
+// Copyright (c) 2015 Yoshua Wuyts
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
+// documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
+// Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import assert from 'assert'
+import fs from 'fs'
+import path from 'path'
+import { pipeline } from 'stream'
+import { promisify } from 'util'
+
+// @ts-expect-error TS(7016) FIXME: Could not find a declaration file for module 'maxstache... Remove this comment to see the full error message
+import maxstache from 'maxstache'
+// @ts-expect-error TS(7016) FIXME: Could not find a declaration file for module 'maxstache-stream... Remove this comment to see the full error message
+import maxstacheStream from 'maxstache-stream'
+import readdirp, { EntryInfo, ReaddirpStream } from 'readdirp'
+
+const noop = (): void => undefined
+
+// Remove a leading underscore
+function removeUnderscore(filepath: string): string {
+  const parts = filepath.split(path.sep)
+  const filename = parts.pop()?.replace(/^_/, '') || ''
+  return [...parts, filename].join(path.sep)
+}
+
+// Write a file to a directory
+async function writeFile(outDir: string, vars: Record<string, string>, file: EntryInfo): Promise<void> {
+  const fileName = file.path
+  const inFile = file.fullPath
+  const parentDir = path.dirname(file.path)
+  const outFile = path.join(outDir, maxstache(removeUnderscore(fileName), vars))
+
+  await fs.promises.mkdir(path.join(outDir, maxstache(parentDir, vars)), { recursive: true })
+
+  const rs = fs.createReadStream(inFile)
+  const ts = maxstacheStream(vars)
+  const ws = fs.createWriteStream(outFile)
+
+  await promisify(pipeline)(rs, ts, ws)
+}
+
+// High throughput template dir writes
+export async function copyTemplateDir(srcDir: string, outDir: string, vars: any): Promise<string[]> {
+  if (!vars) vars = noop
+
+  assert.strictEqual(typeof srcDir, 'string')
+  assert.strictEqual(typeof outDir, 'string')
+  assert.strictEqual(typeof vars, 'object')
+
+  await fs.promises.mkdir(outDir, { recursive: true })
+
+  const rs: ReaddirpStream = readdirp(srcDir)
+  const streams: Promise<void>[] = []
+  const createdFiles: string[] = []
+
+  rs.on('data', (file: EntryInfo) => {
+    createdFiles.push(path.join(outDir, maxstache(removeUnderscore(file.path), vars)))
+    streams.push(writeFile(outDir, vars, file))
+  })
+
+  await new Promise<void>((resolve, reject) => {
+    rs.on('end', async () => {
+      try {
+        await Promise.all(streams)
+        resolve()
+      } catch (error) {
+        reject(error)
+      }
+    })
+    rs.on('error', (error) => {
+      reject(error)
+    })
+  })
+
+  return createdFiles
+}

tests/unit/utils/copy-template-dir/copy-template-dir.test.js

@@ -0,0 +1,90 @@
+import fs from 'fs'
+import path from 'path'
+import { fileURLToPath } from 'url'
+
+import readdirp from 'readdirp'
+import { describe, expect, test } from 'vitest'
+
+import { copyTemplateDir } from '../../../../dist/utils/copy-template-dir/copy-template-dir.js'
+
+// eslint-disable-next-line no-underscore-dangle
+const __filename = fileURLToPath(import.meta.url)
+// eslint-disable-next-line no-underscore-dangle
+const __dirname = path.dirname(__filename)
+
+describe('copyTemplateDir', () => {
+  test('should assert input values', async () => {
+    await expect(copyTemplateDir()).rejects.toThrow(/string/)
+    await expect(copyTemplateDir('foo')).rejects.toThrow(/string/)
+    await expect(copyTemplateDir('foo', 'bar', 'err')).rejects.toThrow(/object/)
+  })
+
+  test('should write a bunch of files', async () => {
+    const checkCreatedFileNames = (names) => {
+      expect(names).toContain('.a')
+      expect(names).toContain('c')
+      expect(names).toContain('1.txt')
+      expect(names).toContain('2.txt')
+      expect(names).toContain('3.txt')
+      expect(names).toContain('.txt')
+      expect(names).toContain(`foo${path.sep}.b`)
+      expect(names).toContain(`foo${path.sep}d`)
+      expect(names).toContain(`foo${path.sep}4.txt`)
+    }
+
+    const inDir = path.join(__dirname, 'fixtures')
+    const outDir = path.join(__dirname, '../tmp')
+
+    const createdFiles = await copyTemplateDir(inDir, outDir, {})
+
+    expect(Array.isArray(createdFiles)).toBe(true)
+    expect(createdFiles.length).toBe(10)
+
+    // Checks the direct output of the function, to ensure names are correct
+    checkCreatedFileNames(createdFiles.map((filePath) => path.relative(outDir, filePath)))
+
+    // Checks that the files were created in the file system
+    const files = await readdirp.promise(outDir)
+    checkCreatedFileNames(files.map((file) => file.path))
+
+    // Cleanup
+    fs.rmdirSync(outDir, { recursive: true })
+  })
+
+  test('should inject context variables strings', async () => {
+    const inDir = path.join(__dirname, 'fixtures')
+    const outDir = path.join(__dirname, '../tmp')
+
+    await copyTemplateDir(inDir, outDir, { foo: 'bar' })
+
+    const fileContent = fs.readFileSync(path.join(outDir, '1.txt'), 'utf-8').trim()
+    expect(fileContent).toBe('hello bar sama')
+
+    // Cleanup
+    fs.rmdirSync(outDir, { recursive: true })
+  })
+
+  test('should inject context variables strings into filenames', async () => {
+    const inDir = path.join(__dirname, 'fixtures')
+    const outDir = path.join(__dirname, '../tmp')
+
+    await copyTemplateDir(inDir, outDir, { foo: 'bar' })
+
+    expect(fs.existsSync(path.join(outDir, 'bar.txt'))).toBe(true)
+
+    // Cleanup
+    fs.rmdirSync(outDir, { recursive: true })
+  })
+
+  test('should inject context variables strings into directory names', async () => {
+    const inDir = path.join(__dirname, 'fixtures')
+    const outDir = path.join(__dirname, '../tmp')
+
+    await copyTemplateDir(inDir, outDir, { foo: 'bar' })
+
+    expect(fs.existsSync(path.join(outDir, 'bar'))).toBe(true)
+
+    // Cleanup
+    fs.rmdirSync(outDir, { recursive: true })
+  })
+})

tests/unit/utils/copy-template-dir/fixtures/1.txt

@@ -0,0 +1 @@
+hello {{foo}} sama