An even more educational version of the Bandolier for Learn JS the Hard Way.
https://learnjsthehardway.com/
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85 lines
2.3 KiB
85 lines
2.3 KiB
#!/usr/bin/env node
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import { Command } from "commander";
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// NOTE: this changed in node 18 to be node:url for...stupid
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import { fileURLToPath } from "url";
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import { glob } from "../lib/tooling.js";
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import path from "path";
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import assert from "assert";
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import fs from "fs";
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// BUG: this will load the commands but most of them assume the root
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const __filename = fileURLToPath(import.meta.url);
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const { dir } = path.parse(__filename);
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let __dirname = path.resolve(dir);
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// now even exec commands will know where the project root is
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process.env['PROJECT_ROOT'] = path.resolve(path.join(__dirname, ".."));
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const program = new Command();
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// remember that glob doesn't like windows \
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const command_dir = path.resolve(path.join(__dirname, "..", "commands"));
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if(!fs.existsSync(command_dir)) {
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console.error("ERROR: there is no command directory at", command_dir);
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process.exit(1);
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}
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program
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.name("bando")
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.description("Command runner for the bando project.")
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.version("0.1.0");
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// only load the commands modules if any options are given
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if(process.argv.length === 2) {
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console.log("COMMANDS:\n");
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const commands = glob(`${command_dir}/*.js`).map(cmd => {
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console.log(path.parse(cmd).name);
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});
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if(process.platform === "win32") {
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console.log("\nUse './bando help' for full help.");
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} else {
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console.log("\nUse './bando.js help' for full help.");
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}
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} else {
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try {
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const name = process.argv[2];
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const command = path.join(command_dir, `${name}.js`);
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if(fs.existsSync(command)) {
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const mod = await import(`file://${command}`);
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assert(mod.description, `export const description missing in ${command}`);
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assert(mod.main, `export const main missing in ${command}`);
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const build = program.command(name)
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.description(mod.description)
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.action(mod.main);
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if(mod.options) {
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mod.options.forEach(opt => build.option(...opt));
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}
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if(mod.required) {
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mod.required.forEach(opt => build.requiredOption(...opt));
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}
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if(mod.argument) {
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build.argument(...mod.argument);
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}
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}
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} catch(error) {
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console.log(error, `Loading file ${process.argv[2]}`);
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}
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}
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try {
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program.parse();
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} catch(error) {
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console.log("------------- ERROR, here's the stack trace.");
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console.error(error.stack);
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process.exit(1);
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}
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