light-weight CLI arguments parser
npm install process.argvlight-weight CLI arguments parser
``js
#!/usr/bin/env node
const argv = require("process.argv");
const processArgv = argv(process.argv.slice(2));
// apply CLI options onto defaults: --foo=AAA --bar-buz=BBB
const config = processArgv({
foo: "AAA",
bar: {
buz: "BBB"
}
});
// show help message if --help given
if (config.help) {
require("fs").createReadStream(__dirname + "/help.md").pipe(process.stderr);
process.exit(1);
}
// rest of CLI arguments
const args = config["--"] || [];
args.forEach(function(arg) {
console.log(arg);
});
`
CLI
`sh`
node cli.js --foo=aaa --bar-buz=bbb file1 file2 file3
`ts
import argv from "process.argv";
const processArgv = argv(process.argv.slice(2));
interface Config {
foo: string;
bar: {
buz: string;
},
qux?: boolean;
}
const config = processArgv
foo: "AAA",
bar: {
buz: "BBB"
}
});
`
Q. Shortcut name such as -f, instead of --force?
A. Use more readable name --force at the 21st century.
Q. Built-in help message feature?
A. Prepare documentation file which is more useful for users.
Q. Space separator --foo bar, instead of equal separator --foo=bar?
A. It's not supported as this module which prefers less configuration.
Q. Using character - itself within a parameter key name?
A. Escape special characters: %2D for -. %3D for =. %25 for %.
Q. Using character . within a parameter key name?
A. . is the special character used internally. It's not available in a key.
`sh``
npm install --save process.argv
- https://github.com/kawanet/process.argv
The MIT License (MIT)
Copyright (c) 2016-2024 Yusuke Kawasaki
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