122 lines
3.2 KiB
JavaScript
Executable File
122 lines
3.2 KiB
JavaScript
Executable File
#!/usr/bin/env node
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import esbuild from "esbuild";
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import { readFile, unlink, writeFile } from "fs/promises";
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import path from "path";
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import yargs from "yargs";
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import { hideBin } from "yargs/helpers";
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import { Manifest } from "../types";
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import { watchFile } from "fs";
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import YAML from "yaml";
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async function compile(filePath: string, functionName: string, debug: boolean) {
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let outFile = "out.js";
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let inFile = filePath;
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if (functionName) {
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// Generate a new file importing just this one function and exporting it
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inFile = "in.js";
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await writeFile(
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inFile,
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`import {${functionName}} from "./${filePath}";
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export default ${functionName};`
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);
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}
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// TODO: Figure out how to make source maps work correctly with eval() code
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let js = await esbuild.build({
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entryPoints: [inFile],
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bundle: true,
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format: "iife",
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globalName: "mod",
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platform: "neutral",
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sourcemap: false, //sourceMap ? "inline" : false,
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minify: !debug,
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outfile: outFile,
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});
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let jsCode = (await readFile(outFile)).toString();
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jsCode = jsCode.replace(/^var mod ?= ?/, "");
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await unlink(outFile);
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if (inFile !== filePath) {
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await unlink(inFile);
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}
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// Strip final ';'
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return jsCode.substring(0, jsCode.length - 2);
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}
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async function bundle(manifestPath: string, sourceMaps: boolean) {
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const rootPath = path.dirname(manifestPath);
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const manifest = YAML.parse(
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(await readFile(manifestPath)).toString()
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) as Manifest<any>;
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for (let [name, def] of Object.entries(manifest.functions)) {
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let jsFunctionName = "default",
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filePath = path.join(rootPath, def.path!);
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if (filePath.indexOf(":") !== -1) {
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[filePath, jsFunctionName] = filePath.split(":");
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}
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def.code = await compile(filePath, jsFunctionName, sourceMaps);
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delete def.path;
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}
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return manifest;
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}
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async function buildManifest(
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manifestPath: string,
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distPath: string,
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debug: boolean
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) {
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let generatedManifest = await bundle(manifestPath, debug);
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const outFile =
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manifestPath.substring(
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0,
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manifestPath.length - path.extname(manifestPath).length
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) + ".json";
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const outPath = path.join(distPath, path.basename(outFile));
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console.log("Emitting bundle to", outPath);
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await writeFile(outPath, JSON.stringify(generatedManifest, null, 2));
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return { generatedManifest, outPath };
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}
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async function run() {
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let args = yargs(hideBin(process.argv))
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.option("debug", {
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type: "boolean",
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})
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.option("watch", {
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type: "boolean",
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alias: "w",
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})
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.option("dist", {
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type: "string",
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default: ".",
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})
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.parse();
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if (args._.length === 0) {
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console.log(
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"Usage: plugos-bundle [--debug] [--dist <path>] <manifest.plug.yaml> <manifest2.plug.yaml> ..."
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);
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process.exit(1);
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}
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for (const plugManifestPath of args._) {
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let manifestPath = plugManifestPath as string;
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await buildManifest(manifestPath, args.dist, !!args.debug);
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if (args.watch) {
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watchFile(manifestPath, { interval: 1000 }, async () => {
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console.log("Rebuilding", manifestPath);
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await buildManifest(manifestPath, args.dist, !!args.debug);
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});
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}
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}
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}
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run().catch((e) => {
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console.error(e);
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process.exit(1);
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});
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