hide_container_volumes_in_user-places.xbel.js

#!/usr/bin/env node
/*jshint node: true, esversion: 10 */

/**
 * Hide container filesystems in ~/.local/share/user-places.xbel
 *
 * @url https://gist.github.com/duzun/e583e1634ed6f6765dbaba0ac846e5cc
 * @author Dumitru Uzun
 * @version 0.0.1
 */

const path = require('path');
const fs = require('fs');
const filename = path.join(process.env.HOME, '.local/share/user-places.xbel');

try {
	const xml2js = require('xml2js');

	let places = fs.readFileSync(filename, 'utf8');
	xml2js.parseString(places, (err, places) => {
		if (err) console.log(err);

		let mountPaths = {};
		let mounts = fs.readFileSync('/proc/mounts', 'utf8').trim().split('\n').map((ln) => {
			ln = ln.split(' ');
			let ret = {
				dev: ln[0],
				mount: ln[1], 
				type: ln[2],
				options: ln[3],
				// 4: ln[4],
				// 5: ln[5],
			};
			// if(mountPaths[ret.mount]) {
			// 	console.log('dup', ret, mountPaths[ret.mount]);
			// }
			mountPaths[ret.mount] = ret;
			return ret;
		});

		let changed = 0;
		const { separator } = places.xbel;
		let p = separator.filter((s) => {
			let href = s.$ && s.$.href;
			if(href) {
				href = href.replace(/^file:\/\/\//, '/');
			}
			else {
				href = s?.info[0]?.metadata[0]?.UDI[0];
				if(href) {
					href = href.replace(/^\/org\/kde\/fstab\/overlay/, '');
					href = href.replace(/^\/org\/freedesktop\/UDisks2\/block_devices/, '/dev');
				}
			}
			if(!href) return true;
			let isHidden = (s?.info[0]?.metadata[0]?.IsHidden+'') == 'true';
			if(!mountPaths[href]) {
				if(!isHidden) {
					++changed;
					return false;
				}
				console.log('missing', href, s);
			}

			if(isHidden) return true;

			if(~href.indexOf(`/docker/overlay2/`) || ~href.indexOf(`/containerd/`)) {
				++changed;
				if(!s.info) s.info = [{}];
				if(!s.info[0].metadata) s.info[0].metadata = [{}];
				s.info[0].metadata[0].IsHidden = ['true'];
				// return false;
			}

			return true;
		});

		if(changed) {
			console.log(`Changed ${changed} devices (${p.length} / ${separator.length})`);
			places.xbel.separator = p;
			let builder = new xml2js.Builder();
			let xml = builder.buildObject(places);
			console.log(`Saving to "${filename}" ${xml.length} symbols`);
			fs.writeFileSync(filename, xml);
			process.exit(changed);
		}
		else {
			console.log('No changes');
		}
		// console.log(JSON.stringify(p, null, 2));
	});

}
catch(err) {
	if(err.code != 'MODULE_NOT_FOUND') throw err;	

	if(!process.env.NODE_PATH && !process.env.PREFIX) {
		const { spawn, execSync } = require('child_process');
		
		// Make sure there is xml2js module installed globally
		// execSync(`npm ls -g xml2js || npm i -g xml2js`);

		let NODE_PATH = execSync(`npm config get prefix`);
		NODE_PATH = path.join(NODE_PATH.toString('utf8').trim(), 'lib/node_modules');

		spawn(process.argv[0], process.argv.slice(1), { stdio: 'inherit', env: Object.assign({}, process.env, {NODE_PATH}) });
		// NODE_PATH=`npm config get prefix`/lib/node_modules process.argv.join(' ')
	}
}