All files / tar/lib update.js

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'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)
}