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'use strict'
const BB = require('bluebird')
const cacache = require('cacache')
const cacheKey = require('./cache-key')
const optCheck = require('./opt-check')
const packlist = require('npm-packlist')
const pipe = BB.promisify(require('mississippi').pipe)
const tar = require('tar')
module.exports = packDir
function packDir (manifest, label, dir, target, opts) {
opts = optCheck(opts)
const packer = opts.dirPacker
? BB.resolve(opts.dirPacker(manifest, dir))
: mkPacker(dir)
if (!opts.cache) {
return packer.then(packer => pipe(packer, target))
} else {
const cacher = cacache.put.stream(
opts.cache, cacheKey('packed-dir', label), opts
).on('integrity', i => {
target.emit('integrity', i)
})
return packer.then(packer => BB.all([
pipe(packer, cacher),
pipe(packer, target)
]))
}
}
function mkPacker (dir) {
return packlist({ path: dir }).then(files => {
return tar.c({
cwd: dir,
gzip: true,
portable: true,
prefix: 'package/'
}, files)
})
}
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