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