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Merge branch 'master' into fix/dns-cache-and-http-throttling-in-browser
License: MIT Signed-off-by: Marcin Rataj <lidel@lidel.org>
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148 changes: 148 additions & 0 deletions
148
src/core/components/files-regular/add-async-iterator.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| 'use strict' | ||
|
|
||
| const importer = require('ipfs-unixfs-importer') | ||
| const normaliseAddInput = require('ipfs-utils/src/files/normalise-input') | ||
| const { parseChunkerString } = require('./utils') | ||
| const pipe = require('it-pipe') | ||
| const log = require('debug')('ipfs:add') | ||
| log.error = require('debug')('ipfs:add:error') | ||
|
|
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| function noop () {} | ||
|
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| module.exports = function (self) { | ||
| // Internal add func that gets used by all add funcs | ||
| return async function * addAsyncIterator (source, options) { | ||
| options = options || {} | ||
|
|
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| const chunkerOptions = parseChunkerString(options.chunker) | ||
|
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| const opts = Object.assign({}, { | ||
| shardSplitThreshold: self._options.EXPERIMENTAL.sharding | ||
| ? 1000 | ||
| : Infinity | ||
| }, options, { | ||
| chunker: chunkerOptions.chunker, | ||
| chunkerOptions: chunkerOptions.chunkerOptions | ||
| }) | ||
|
|
||
| // CID v0 is for multihashes encoded with sha2-256 | ||
| if (opts.hashAlg && opts.cidVersion !== 1) { | ||
| opts.cidVersion = 1 | ||
| } | ||
|
|
||
| let total = 0 | ||
|
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| const prog = opts.progress || noop | ||
| const progress = (bytes) => { | ||
| total += bytes | ||
| prog(total) | ||
| } | ||
|
|
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| opts.progress = progress | ||
|
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| const iterator = pipe( | ||
| normaliseAddInput(source), | ||
| doImport(self, opts), | ||
| transformFile(self, opts), | ||
| preloadFile(self, opts), | ||
| pinFile(self, opts) | ||
| ) | ||
|
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| const releaseLock = await self._gcLock.readLock() | ||
|
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| try { | ||
| yield * iterator | ||
| } finally { | ||
| releaseLock() | ||
| } | ||
| } | ||
| } | ||
|
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| function doImport (ipfs, opts) { | ||
| return async function * (source) { // eslint-disable-line require-await | ||
| yield * importer(source, ipfs._ipld, opts) | ||
| } | ||
| } | ||
|
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| function transformFile (ipfs, opts) { | ||
| return async function * (source) { | ||
| for await (const file of source) { | ||
| let cid = file.cid | ||
| const hash = cid.toBaseEncodedString() | ||
| let path = file.path ? file.path : hash | ||
|
|
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| if (opts.wrapWithDirectory && !file.path) { | ||
| path = '' | ||
| } | ||
|
|
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| if (opts.onlyHash) { | ||
| yield { | ||
| path, | ||
| hash, | ||
| size: file.unixfs.fileSize() | ||
| } | ||
|
|
||
| return | ||
| } | ||
|
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| const node = await ipfs.object.get(file.cid, Object.assign({}, opts, { preload: false })) | ||
|
|
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| if (opts.cidVersion === 1) { | ||
| cid = cid.toV1() | ||
| } | ||
|
|
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| let size = node.size | ||
|
|
||
| if (Buffer.isBuffer(node)) { | ||
| size = node.length | ||
| } | ||
|
|
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| yield { | ||
| path, | ||
| hash, | ||
| size | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| function preloadFile (ipfs, opts) { | ||
| return async function * (source) { | ||
| for await (const file of source) { | ||
| const isRootFile = !file.path || opts.wrapWithDirectory | ||
| ? file.path === '' | ||
| : !file.path.includes('/') | ||
|
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| const shouldPreload = isRootFile && !opts.onlyHash && opts.preload !== false | ||
|
|
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| if (shouldPreload) { | ||
| ipfs._preload(file.hash) | ||
| } | ||
|
|
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| yield file | ||
| } | ||
| } | ||
| } | ||
|
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| function pinFile (ipfs, opts) { | ||
| return async function * (source) { | ||
| for await (const file of source) { | ||
| // Pin a file if it is the root dir of a recursive add or the single file | ||
| // of a direct add. | ||
| const pin = 'pin' in opts ? opts.pin : true | ||
| const isRootDir = !file.path.includes('/') | ||
| const shouldPin = pin && isRootDir && !opts.onlyHash && !opts.hashAlg | ||
|
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| if (shouldPin) { | ||
| // Note: addAsyncIterator() has already taken a GC lock, so tell | ||
| // pin.add() not to take a (second) GC lock | ||
| await ipfs.pin.add(file.hash, { | ||
| preload: false, | ||
| lock: false | ||
| }) | ||
| } | ||
|
|
||
| yield file | ||
| } | ||
| } | ||
| } |
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