execli/lib/cli.js

Generate task-oriented CLIs declaratively

#!/usr/bin/env node
import { isAbsolute, join } from "node:path";
import { argv, cwd } from "node:process";
import { pathToFileURL } from "node:url";
import yargs from "yargs";
import { hideBin } from "yargs/helpers";
import { runCli } from "./commands.js";
import { compile } from "./compile.js";
// `"true"` instead of `true` because of https://github.com/DefinitelyTyped/DefinitelyTyped/issues/37797.
const required = "true";
const compileCommand = {
    builder: (args) => args
        .positional("source", {
        describe: "The path resolving to the file exporting the commands.",
        normalize: true,
        required,
        type: "string",
    })
        .positional("target", {
        describe: "The path where the compiled Node.js file will be written to.",
        normalize: true,
        required,
        type: "string",
    }),
    command: "compile <source> <target>",
    describe: "Compile the commands at the given path to a single executable Node.js file, together with all the dependencies.",
    handler: compile,
};
const runCommand = {
    builder: (args) => args.positional("path", {
        describe: "The path resolving to the file exporting the commands.",
        normalize: true,
        required,
        type: "string",
    }),
    command: "run <path>",
    describe: "Run the commands at the given path, forwarding the command line arguments after `--`.",
    async handler({ _: [_, ...commandArgv], path: commandsPath }) {
        const commandsAbsolutePath = isAbsolute(commandsPath)
            ? commandsPath
            : join(cwd(), commandsPath);
        const commandsUrl = pathToFileURL(commandsAbsolutePath);
        const commands = (await import(commandsUrl.href));
        await runCli(commands, commandArgv.map(String));
    },
};
const yargsInstance = yargs(hideBin(argv));
export const createCli = () => yargsInstance
    .command(compileCommand)
    .command(runCommand)
    .demandCommand()
    .strict()
    .version(false)
    .wrap(yargsInstance.terminalWidth());
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