'use strict' // tar -u const hlo = require('./high-level-opt.js') const r = require('./replace.js') // just call tar.r with the filter and mtimeCache const u = module.exports = (opt_, files, cb) => { const opt = hlo(opt_) if (!opt.file) throw new TypeError('file is required') if (opt.gzip) throw new TypeError('cannot append to compressed archives') if (!files || !Array.isArray(files) || !files.length) throw new TypeError('no files or directories specified') files = Array.from(files) mtimeFilter(opt) return r(opt, files, cb) } const mtimeFilter = opt => { const filter = opt.filter if (!opt.mtimeCache) opt.mtimeCache = new Map() opt.filter = filter ? (path, stat) => filter(path, stat) && !(opt.mtimeCache.get(path) > stat.mtime) : (path, stat) => !(opt.mtimeCache.get(path) > stat.mtime) }