mclip/build/help.js

Minimal cli args parser.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.printHelp = printHelp;
function fillSpace(word, length) {
    const spaces = " ".repeat(length - word.length);
    return `${word}${spaces}`;
}
function printColumns(grid) {
    const columnWidths = grid.reduce((acc, row) => {
        for (let i = 0; i < row.length; i++) {
            acc[i] = Math.max(acc[i], row[i].length);
        }
        return acc;
    }, new Array(grid[0].length).fill(0));
    for (const row of grid) {
        let str = "  ";
        for (const cell of row) {
            str = str + fillSpace(cell, columnWidths[row.indexOf(cell)]) + "  ";
        }
        console.log(str);
    }
}
function renderParam(key) {
    const dashes = key.length > 1 ? "--" : "-";
    return `${dashes}${key}`;
}
function getScriptName(str) {
    const a = str.split("/");
    return a[a.length - 1];
}
function printHelp(scriptName, config) {
    console.log(`Usage: ${getScriptName(scriptName)} [options] [arguments]`);
    const entries = config ? Object.entries(config) : [];
    if (entries.length === 0) {
        return;
    }
    console.log("Options:");
    const opts = [];
    for (const [key, value] of entries) {
        let flags = renderParam(key);
        if (value.short) {
            flags = `${flags}, ${renderParam(value.short)}`;
        }
        let description = value.description || "";
        let defaults = value.default ? `Default: ${value.default}` : "";
        opts.push([flags, description, defaults]);
    }
    printColumns(opts);
}
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