const sysinfo = require('systeminformation'); const {SystemError} = require('../../../errors'); const MB_IN_BYTES = 1048576; // one version of Ghost takes ~400mb of space currently, to be safe we're going to say 1gb const MIN_FREE_SPACE = 1024; async function checkFreeSpace(ctx) { const dir = ctx.instance ? ctx.instance.dir : process.cwd(); const disks = await sysinfo.fsSize(); // filter out disks with matching mount points, then sort in descending order by mount point length // to get the mount point with greatest specificity const [disk] = disks.filter(d => dir.startsWith(d.mount)).sort((a, b) => b.mount.length - a.mount.length); if (!disk) { // couldn't find a matching disk, early return // TODO: maybe throw a warning of some sort here? return; } const available = (disk.size - disk.used) / MB_IN_BYTES; if (available < MIN_FREE_SPACE) { throw new SystemError(`You are recommended to have at least ${MIN_FREE_SPACE} MB of free storage space available for smooth operation. It looks like you have ~${available} MB available`); } } module.exports = { title: 'Checking free space', task: checkFreeSpace, category: ['install', 'update'] };