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@@ -0,0 +1,145 @@
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+import babel from '@babel/core'
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+import t from '@babel/types'
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+import { promisify } from 'node:util'
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+import { fileURLToPath } from 'node:url'
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+import globRaw from 'glob'
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+import { mkdir, stat, writeFile, readFile } from 'node:fs/promises'
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+import path from 'node:path'
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+
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+const glob = promisify(globRaw)
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+
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+
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+const PACKAGE_JSON_IMPORT = /^\..*\/package.json$/
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+const SOURCE = 'packages/{*,@uppy/*}/src/**/*.{js,ts}?(x)'
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+// Files not to build (such as tests)
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+const IGNORE = /\.test\.jsx?$|\.test\.tsx?$|__mocks__|svelte|angular|companion\//;
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+// Files that should trigger a rebuild of everything on change
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+const META_FILES = [
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+ 'babel.config.js',
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+ 'package.json',
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+ 'package-lock.json',
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+ 'yarn.lock',
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+ 'bin/build-lib.js',
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+]
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+
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+function lastModified (file, createParentDir = false) {
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+ return stat(file).then((s) => s.mtime, async (err) => {
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+ if (err.code === 'ENOENT') {
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+ if (createParentDir) {
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+ await mkdir(path.dirname(file), { recursive: true })
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+ }
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+ return 0
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+ }
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+ throw err
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+ })
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+}
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+
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+const versionCache = new Map()
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+
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+// eslint-disable-next-line no-underscore-dangle
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+const __dirname = path.dirname(fileURLToPath(import.meta.url));
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+
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+async function preparePackage (file) {
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+ const packageFolder = file.slice(0, file.indexOf('/src/'))
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+ if (versionCache.has(packageFolder)) return
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+
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+ // eslint-disable-next-line import/no-dynamic-require, global-require
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+ const { version } = JSON.parse(await readFile(path.join(__dirname, '..', packageFolder, 'package.json'), 'utf8'))
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+ if (process.env.FRESH) {
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+ // in case it hasn't been done before.
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+ await mkdir(path.join(packageFolder, 'lib'), { recursive: true })
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+ }
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+ versionCache.set(packageFolder, version)
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+}
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+
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+const nonJSImport = /^\.\.?\/.+\.([jt]sx|ts)$/
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+// eslint-disable-next-line no-shadow
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+function rewriteNonJSImportsToJS (path) {
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+ const match = nonJSImport.exec(path.node.source.value)
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+ if (match) {
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+ // eslint-disable-next-line no-param-reassign
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+ path.node.source.value = `${match[0].slice(0, -match[1].length)}js`
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+ }
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+}
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+
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+console.log('Using Babel version:', JSON.parse(await readFile(fileURLToPath(import.meta.resolve('@babel/core/package.json')), 'utf8')).version)
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+
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+const metaMtimes = await Promise.all(META_FILES.map((filename) => lastModified(path.join(__dirname, '..', filename))))
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+const metaMtime = Math.max(...metaMtimes)
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+
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+const files = await glob(SOURCE)
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+/* eslint-disable no-continue */
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+for (const file of files) {
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+ if (IGNORE.test(file)) {
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+ continue
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+ }
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+ await preparePackage(file)
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+ const libFile = file.replace('/src/', '/lib/').replace(/\.[jt]sx?$/, '.js')
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+
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+ // on a fresh build, rebuild everything.
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+ if (!process.env.FRESH) {
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+ const [srcMtime, libMtime] = await Promise.all([
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+ lastModified(file),
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+ lastModified(libFile, true),
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+ ])
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+ // Skip files that haven't changed
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+ if (srcMtime < libMtime && metaMtime < libMtime) {
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+ continue
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+ }
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+ }
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+
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+ const plugins = [{
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+ visitor: {
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+ // eslint-disable-next-line no-shadow
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+ ImportDeclaration (path) {
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+ rewriteNonJSImportsToJS(path)
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+ if (PACKAGE_JSON_IMPORT.test(path.node.source.value)
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+ && path.node.specifiers.length === 1
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+ && path.node.specifiers[0].type === 'ImportDefaultSpecifier') {
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+ // Vendor-in version number from package.json files:
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+ const version = versionCache.get(file.slice(0, file.indexOf('/src/')))
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+ if (version != null) {
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+ const [{ local }] = path.node.specifiers
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+ path.replaceWith(
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+ t.variableDeclaration('const', [t.variableDeclarator(local,
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+ t.objectExpression([
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+ t.objectProperty(t.stringLiteral('version'), t.stringLiteral(version)),
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+ ]))]),
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+ )
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+ }
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+ }
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+ },
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+
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+ ExportAllDeclaration: rewriteNonJSImportsToJS,
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+ // eslint-disable-next-line no-shadow
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+ ExportNamedDeclaration (path) {
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+ if (path.node.source != null) {
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+ rewriteNonJSImportsToJS(path)
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+ }
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+ },
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+ },
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+ }]
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+ const isTSX = file.endsWith('.tsx')
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+ if (isTSX || file.endsWith('.ts')) {
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+ plugins.push(['@babel/plugin-transform-typescript', {
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+ disallowAmbiguousJSXLike: true,
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+ isTSX,
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+ jsxPragma: 'h',
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+ jsxPragmaFrag: 'Fragment',
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+ }])
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+ }
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+
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+ const { code, map } = await babel.transformFileAsync(file, {
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+ sourceMaps: true,
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+ plugins,
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+ // no comments because https://github.com/transloadit/uppy/pull/4868#issuecomment-1897717779
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+ comments: !process.env.DIFF_BUILDER,
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+ })
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+ const [{ default: chalk }] = await Promise.all([
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+ import('chalk'),
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+ writeFile(libFile, code),
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+ writeFile(`${libFile}.map`, JSON.stringify(map)),
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+ ])
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+ console.log(chalk.green('Compiled lib:'), chalk.magenta(libFile))
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+}
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+/* eslint-enable no-continue */
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Mikael Finstad