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50 lines
1.5 KiB
50 lines
1.5 KiB
2 years ago
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// you may not need all of these but they come up a lot
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import fs from "fs";
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import assert from "assert";
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import logging from '../lib/logging.js';
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import glob from "fast-glob";
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import path from "path";
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import template from "lodash/template.js";
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const log = logging.create(import.meta.url);
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export const description = "Describe your command here."
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// your command uses the npm package commander's options format
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export const options = [
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["--input <string>", "A string option with a default.", "default.json"],
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["--min <number>", "A number option, no default."],
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]
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// example of a positional argument, it's the 1st argument to main
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export const argument = ["source", "source directory"];
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// put required options in the required variable
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export const required = [
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["--output <string>", "Save to file rather than stdout."],
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]
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// handy function for checking things are good and aborting
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const check = (test, fail_message) => {
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if(!test) {
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log.error(fail_message);
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process.exit(1);
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}
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}
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export const main = async (arg, opts) => {
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// if they give an numeric option this is how you can convert it
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// yes, this is annoying and commander should handle it but oh well
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if(opts.min !== undefined) {
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// commander doesn't do integer conversions sadly
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opts.min = parseInt(opts.min, 10);
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check(!isNaN(opts.min), "--min must be a number");
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}
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// it's easier to debug options with console
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console.log("OPTIONS", opts, "ARG", arg);
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// due to how async/await works it's just easier to manually exit with exit codes
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process.exit(0);
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}
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