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#!/usr/bin/env node
let { nanoid, customAlphabet } = require('..')
function print(msg) {
process.stdout.write(msg + '\n')
}
function error(msg) {
process.stderr.write(msg + '\n')
process.exit(1)
}
if (process.argv.includes('--help') || process.argv.includes('-h')) {
print(`
Usage
$ nanoid [options]
Options
-s, --size Generated ID size
-a, --alphabet Alphabet to use
-h, --help Show this help
Examples
$ nanoid --s 15
S9sBF77U6sDB8Yg
$ nanoid --size 10 --alphabet abc
bcabababca`)
process.exit()
}
let alphabet, size
for (let i = 2; i < process.argv.length; i++) {
let arg = process.argv[i]
if (arg === '--size' || arg === '-s') {
size = Number(process.argv[i + 1])
i += 1
if (Number.isNaN(size) || size <= 0) {
error('Size must be positive integer')
}
} else if (arg === '--alphabet' || arg === '-a') {
alphabet = process.argv[i + 1]
i += 1
} else {
error('Unknown argument ' + arg)
}
}
if (alphabet) {
let customNanoid = customAlphabet(alphabet, size)
print(customNanoid())
} else {
print(nanoid(size))
}
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