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path: root/commands/purge.js
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module.exports = async (argv) => {
    const installed = JSON.parse(fs.readFileSync(home + "/installed.json").toString());
    if (!installed.map(i => i.id).includes(argv.package)) {
        die(c.red("error: ") + "package '" + argv.package + "' is not installed");
    }

    let spinner = ora("Reading package lists...").start();
    let packages = JSON.parse(fs.readFileSync(home + "/repository/list.json").toString());
    spinner.succeed("Reading packages lists... done");

    let dir = argv.package.substring(0, 1).replace(/[^a-zA-Z0-9]/gm, "#");

    if (!packages.includes(argv.package)) {
        console.log(c.yellow("warn: ") + "package '" + argv.package + "' not in repository anymore");
        name = argv.package;
    } else {
        name = JSON.parse(fs.readFileSync(home + "/repository/" + dir + "/" + argv.package + ".json").toString()).name;
    }

    instInfo = installed.filter(i => i.id === argv.package)[0];

    console.log("  Purging '" + name + "'...")
    console.log("      version:   " + instInfo.version);
    console.log("      installed: " + moment(instInfo.date).fromNow());

    try {
        if (!(await prompts.confirm({
            message: "Purging this package will delete all associated data. Are you sure you want to continue?",
            initial: false
        }))) {
            die();
        }
    } catch (e) {
        die();
    }

    spinner = ora("Reading files list...").start();
    files1 = instInfo.files;
    files2 = require('../hooks/files')(instInfo.id);
    filesR = files2.filter(f => !files1.includes(f));
    spinner.succeed("Reading files list... done");
    if (filesR.length === 0) {
        die(c.red("error: ") + "this installation of package '" + argv.package + "' cannot be purged, use 'twi reinstall' instead");
    }

    spinner = ora("Removing user files...").start();
    let index = 0
    for (let file of filesR) {
        spinner.text = "Removing user files... " + Math.round((index / filesR.length) * 100) + "%";
        fs.rmSync(home + "/packages/" + argv.package + "/" + file);
        index++;
    }
    spinner.succeed("Removing user files... done");
}