FIN INIT
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317
node_modules/sucrase/dist/esm/cli.js
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317
node_modules/sucrase/dist/esm/cli.js
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/* eslint-disable no-console */
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import commander from "commander";
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import {glob} from "glob";
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import {exists, mkdir, readdir, readFile, stat, writeFile} from "mz/fs";
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import {dirname, join, relative} from "path";
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import { transform} from "./index";
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export default function run() {
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commander
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.description(`Sucrase: super-fast Babel alternative.`)
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.usage("[options] <srcDir>")
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.option(
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"-d, --out-dir <out>",
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"Compile an input directory of modules into an output directory.",
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)
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.option(
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"-p, --project <dir>",
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"Compile a TypeScript project, will read from tsconfig.json in <dir>",
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)
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.option("--out-extension <extension>", "File extension to use for all output files.", "js")
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.option("--exclude-dirs <paths>", "Names of directories that should not be traversed.")
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.option("-q, --quiet", "Don't print the names of converted files.")
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.option("-t, --transforms <transforms>", "Comma-separated list of transforms to run.")
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.option("--disable-es-transforms", "Opt out of all ES syntax transforms.")
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.option("--jsx-runtime <string>", "Transformation mode for the JSX transform.")
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.option("--production", "Disable debugging information from JSX in output.")
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.option(
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"--jsx-import-source <string>",
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"Automatic JSX transform import path prefix, defaults to `React.Fragment`.",
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)
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.option(
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"--jsx-pragma <string>",
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"Classic JSX transform element creation function, defaults to `React.createElement`.",
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)
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.option(
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"--jsx-fragment-pragma <string>",
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"Classic JSX transform fragment component, defaults to `React.Fragment`.",
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)
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.option("--keep-unused-imports", "Disable automatic removal of type-only imports/exports.")
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.option("--preserve-dynamic-import", "Don't transpile dynamic import() to require.")
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.option(
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"--inject-create-require-for-import-require",
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"Use `createRequire` when transpiling TS `import = require` to ESM.",
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)
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.option(
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"--enable-legacy-typescript-module-interop",
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"Use default TypeScript ESM/CJS interop strategy.",
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)
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.option("--enable-legacy-babel5-module-interop", "Use Babel 5 ESM/CJS interop strategy.")
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.parse(process.argv);
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if (commander.project) {
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if (
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commander.outDir ||
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commander.transforms ||
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commander.args[0] ||
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commander.enableLegacyTypescriptModuleInterop
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) {
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console.error(
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"If TypeScript project is specified, out directory, transforms, source " +
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"directory, and --enable-legacy-typescript-module-interop may not be specified.",
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);
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process.exit(1);
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}
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} else {
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if (!commander.outDir) {
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console.error("Out directory is required");
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process.exit(1);
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}
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if (!commander.transforms) {
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console.error("Transforms option is required.");
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process.exit(1);
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}
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if (!commander.args[0]) {
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console.error("Source directory is required.");
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process.exit(1);
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}
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}
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const options = {
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outDirPath: commander.outDir,
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srcDirPath: commander.args[0],
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project: commander.project,
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outExtension: commander.outExtension,
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excludeDirs: commander.excludeDirs ? commander.excludeDirs.split(",") : [],
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quiet: commander.quiet,
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sucraseOptions: {
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transforms: commander.transforms ? commander.transforms.split(",") : [],
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disableESTransforms: commander.disableEsTransforms,
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jsxRuntime: commander.jsxRuntime,
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production: commander.production,
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jsxImportSource: commander.jsxImportSource,
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jsxPragma: commander.jsxPragma || "React.createElement",
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jsxFragmentPragma: commander.jsxFragmentPragma || "React.Fragment",
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keepUnusedImports: commander.keepUnusedImports,
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preserveDynamicImport: commander.preserveDynamicImport,
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injectCreateRequireForImportRequire: commander.injectCreateRequireForImportRequire,
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enableLegacyTypeScriptModuleInterop: commander.enableLegacyTypescriptModuleInterop,
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enableLegacyBabel5ModuleInterop: commander.enableLegacyBabel5ModuleInterop,
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},
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};
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buildDirectory(options).catch((e) => {
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process.exitCode = 1;
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console.error(e);
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});
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}
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async function findFiles(options) {
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const outDirPath = options.outDirPath;
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const srcDirPath = options.srcDirPath;
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const extensions = options.sucraseOptions.transforms.includes("typescript")
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? [".ts", ".tsx"]
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: [".js", ".jsx"];
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if (!(await exists(outDirPath))) {
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await mkdir(outDirPath);
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}
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const outArr = [];
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for (const child of await readdir(srcDirPath)) {
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if (["node_modules", ".git"].includes(child) || options.excludeDirs.includes(child)) {
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continue;
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}
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const srcChildPath = join(srcDirPath, child);
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const outChildPath = join(outDirPath, child);
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if ((await stat(srcChildPath)).isDirectory()) {
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const innerOptions = {...options};
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innerOptions.srcDirPath = srcChildPath;
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innerOptions.outDirPath = outChildPath;
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const innerFiles = await findFiles(innerOptions);
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outArr.push(...innerFiles);
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} else if (extensions.some((ext) => srcChildPath.endsWith(ext))) {
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const outPath = outChildPath.replace(/\.\w+$/, `.${options.outExtension}`);
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outArr.push({
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srcPath: srcChildPath,
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outPath,
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});
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}
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}
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return outArr;
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}
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async function runGlob(options) {
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const tsConfigPath = join(options.project, "tsconfig.json");
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let str;
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try {
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str = await readFile(tsConfigPath, "utf8");
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} catch (err) {
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console.error("Could not find project tsconfig.json");
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console.error(` --project=${options.project}`);
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console.error(err);
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process.exit(1);
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}
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const json = JSON.parse(str);
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const foundFiles = [];
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const files = json.files;
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const include = json.include;
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const absProject = join(process.cwd(), options.project);
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const outDirs = [];
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if (!(await exists(options.outDirPath))) {
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await mkdir(options.outDirPath);
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}
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if (files) {
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for (const file of files) {
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if (file.endsWith(".d.ts")) {
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continue;
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}
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if (!file.endsWith(".ts") && !file.endsWith(".js")) {
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continue;
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}
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const srcFile = join(absProject, file);
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const outFile = join(options.outDirPath, file);
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const outPath = outFile.replace(/\.\w+$/, `.${options.outExtension}`);
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const outDir = dirname(outPath);
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if (!outDirs.includes(outDir)) {
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outDirs.push(outDir);
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}
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foundFiles.push({
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srcPath: srcFile,
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outPath,
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});
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}
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}
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if (include) {
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for (const pattern of include) {
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const globFiles = await glob(join(absProject, pattern));
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for (const file of globFiles) {
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if (!file.endsWith(".ts") && !file.endsWith(".js")) {
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continue;
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}
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if (file.endsWith(".d.ts")) {
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continue;
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}
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const relativeFile = relative(absProject, file);
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const outFile = join(options.outDirPath, relativeFile);
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const outPath = outFile.replace(/\.\w+$/, `.${options.outExtension}`);
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const outDir = dirname(outPath);
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if (!outDirs.includes(outDir)) {
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outDirs.push(outDir);
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}
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foundFiles.push({
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srcPath: file,
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outPath,
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});
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}
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}
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}
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for (const outDirPath of outDirs) {
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if (!(await exists(outDirPath))) {
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await mkdir(outDirPath);
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}
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}
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// TODO: read exclude
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return foundFiles;
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}
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async function updateOptionsFromProject(options) {
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/**
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* Read the project information and assign the following.
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* - outDirPath
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* - transform: imports
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* - transform: typescript
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* - enableLegacyTypescriptModuleInterop: true/false.
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*/
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const tsConfigPath = join(options.project, "tsconfig.json");
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let str;
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try {
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str = await readFile(tsConfigPath, "utf8");
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} catch (err) {
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console.error("Could not find project tsconfig.json");
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console.error(` --project=${options.project}`);
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console.error(err);
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process.exit(1);
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}
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const json = JSON.parse(str);
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const sucraseOpts = options.sucraseOptions;
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if (!sucraseOpts.transforms.includes("typescript")) {
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sucraseOpts.transforms.push("typescript");
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}
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const compilerOpts = json.compilerOptions;
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if (compilerOpts.outDir) {
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options.outDirPath = join(process.cwd(), options.project, compilerOpts.outDir);
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}
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if (compilerOpts.esModuleInterop !== true) {
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sucraseOpts.enableLegacyTypeScriptModuleInterop = true;
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}
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if (compilerOpts.module === "commonjs") {
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if (!sucraseOpts.transforms.includes("imports")) {
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sucraseOpts.transforms.push("imports");
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}
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}
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}
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async function buildDirectory(options) {
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let files;
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if (options.outDirPath && options.srcDirPath) {
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files = await findFiles(options);
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} else if (options.project) {
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await updateOptionsFromProject(options);
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files = await runGlob(options);
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} else {
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console.error("Project or Source directory required.");
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process.exit(1);
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}
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for (const file of files) {
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await buildFile(file.srcPath, file.outPath, options);
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}
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}
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async function buildFile(srcPath, outPath, options) {
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if (!options.quiet) {
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console.log(`${srcPath} -> ${outPath}`);
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}
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const code = (await readFile(srcPath)).toString();
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const transformedCode = transform(code, {...options.sucraseOptions, filePath: srcPath}).code;
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await writeFile(outPath, transformedCode);
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}
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