gr-bin 0.1.5

Interact with remote repositories like you interact with git
Documentation 
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const axios = require('axios');
const { chmodSync, constants, existsSync } = require('fs');
const os = require('os');
const unzip = require('unzip-stream');

const { repository, version } = require('./package.json');

// Postinstall script: download binary from GitHub releases
async function main() {
    if (os.arch() !== 'x64') {
        // ARM is currently not supported :(
        process.stderr.write('Your platform is currently not supported.\n');
        process.exit(1);
    }

    let filename;
    switch (process.platform) {
        case 'cygwin':
        case 'win32':
            // Windows
            filename = 'gr-bin_x86_64-pc-windows-gnu.zip';
            break;
        case 'linux':
            // Linux
            filename = 'gr-bin_x86_64-unknown-linux-gnu.zip';
            break;
        default:
            // MacOS is currently not supported :(
            process.stderr.write('Your platform is currently not supported.\n');
            process.exit(1);
    }

    const url = `${repository.url}/releases/download/v${version}/${filename}`;

    const file = await axios.get(url, { responseType: 'stream' }).catch(() => {
        throw new Error(`Cannot download binary from ${url}.`);
    });
    file.data.pipe(unzip.Extract({ path: '.' })).on('close', () => {
        // On Linux we have to make this executable
        if (existsSync('gr')) {
            chmodSync('gr', 0755);
        }
    });
}

main().catch((err) => {
    console.error(err);
    process.exit(1);
});