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- 'use strict'
- const figgyPudding = require('figgy-pudding')
- const index = require('./lib/entry-index')
- const memo = require('./lib/memoization')
- const write = require('./lib/content/write')
- const Flush = require('minipass-flush')
- const { PassThrough } = require('minipass-collect')
- const Pipeline = require('minipass-pipeline')
- const PutOpts = figgyPudding({
- algorithms: {
- default: ['sha512']
- },
- integrity: {},
- memoize: {},
- metadata: {},
- pickAlgorithm: {},
- size: {},
- tmpPrefix: {},
- single: {},
- sep: {},
- error: {},
- strict: {}
- })
- module.exports = putData
- function putData (cache, key, data, opts) {
- opts = PutOpts(opts)
- return write(cache, data, opts).then((res) => {
- return index
- .insert(cache, key, res.integrity, opts.concat({ size: res.size }))
- .then((entry) => {
- if (opts.memoize) {
- memo.put(cache, entry, data, opts)
- }
- return res.integrity
- })
- })
- }
- module.exports.stream = putStream
- function putStream (cache, key, opts) {
- opts = PutOpts(opts)
- let integrity
- let size
- let memoData
- const pipeline = new Pipeline()
- // first item in the pipeline is the memoizer, because we need
- // that to end first and get the collected data.
- if (opts.memoize) {
- const memoizer = new PassThrough().on('collect', data => {
- memoData = data
- })
- pipeline.push(memoizer)
- }
- // contentStream is a write-only, not a passthrough
- // no data comes out of it.
- const contentStream = write.stream(cache, opts)
- .on('integrity', (int) => {
- integrity = int
- })
- .on('size', (s) => {
- size = s
- })
- pipeline.push(contentStream)
- // last but not least, we write the index and emit hash and size,
- // and memoize if we're doing that
- pipeline.push(new Flush({
- flush () {
- return index
- .insert(cache, key, integrity, opts.concat({ size }))
- .then((entry) => {
- if (opts.memoize && memoData) {
- memo.put(cache, entry, memoData, opts)
- }
- if (integrity) {
- pipeline.emit('integrity', integrity)
- }
- if (size) {
- pipeline.emit('size', size)
- }
- })
- }
- }))
- return pipeline
- }
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