pnpm

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import fs from 'fs'
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import path from 'path'
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import { tempDir as createTempDir } from '@pnpm/prepare'
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import { hardLinkDir } from '@pnpm/fs.hard-link-dir'
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test('hardLinkDirectory()', () => {
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  const tempDir = createTempDir()
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  const srcDir = path.join(tempDir, 'source')
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  const dest1Dir = path.join(tempDir, 'dest1')
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  const dest2Dir = path.join(tempDir, 'dest2')
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  fs.mkdirSync(srcDir, { recursive: true })
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  fs.mkdirSync(dest1Dir, { recursive: true })
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  fs.mkdirSync(path.join(srcDir, 'node_modules'), { recursive: true })
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  fs.mkdirSync(path.join(srcDir, 'subdir'), { recursive: true })
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  fs.writeFileSync(path.join(srcDir, 'file.txt'), 'Hello World')
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  fs.writeFileSync(path.join(srcDir, 'subdir/file.txt'), 'Hello World')
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  fs.writeFileSync(path.join(srcDir, 'node_modules/file.txt'), 'Hello World')
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  hardLinkDir(srcDir, [dest1Dir, dest2Dir])
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  // It should link the files from the root
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  expect(fs.readFileSync(path.join(dest1Dir, 'file.txt'), 'utf8')).toBe('Hello World')
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  expect(fs.readFileSync(path.join(dest2Dir, 'file.txt'), 'utf8')).toBe('Hello World')
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  // It should link files from a subdirectory
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  expect(fs.readFileSync(path.join(dest1Dir, 'subdir/file.txt'), 'utf8')).toBe('Hello World')
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  expect(fs.readFileSync(path.join(dest2Dir, 'subdir/file.txt'), 'utf8')).toBe('Hello World')
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  // It should not link files from node_modules
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  expect(fs.existsSync(path.join(dest1Dir, 'node_modules/file.txt'))).toBe(false)
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  expect(fs.existsSync(path.join(dest2Dir, 'node_modules/file.txt'))).toBe(false)
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})
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test("don't fail on missing source and dest directories", () => {
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  const tempDir = createTempDir()
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  const missingDirSrc = path.join(tempDir, 'missing_source')
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  const missingDirDest = path.join(tempDir, 'missing_dest')
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  hardLinkDir(missingDirSrc, [missingDirDest])
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  // It should create an empty dest dir if src does not exist
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  expect(fs.existsSync(missingDirSrc)).toBe(false)
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  expect(fs.existsSync(missingDirDest)).toBe(true)
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})
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