fix: update tesseract to the latest version (#1596)
* chore: update tesseract to the latest version * fix stuff * fix delay * fix caching, fixes #1457
This commit is contained in:
Nolan Lawson
GitHub
parent
1d257ed92e
commit
2a248cb482
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@ -103,8 +103,8 @@
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"svelte-transitions": "^1.2.0",
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"svgo": "^1.3.0",
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"terser-webpack-plugin": "^2.1.3",
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"tesseract.js": "^2.0.0-alpha.13",
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"tesseract.js-core": "^2.0.0-beta.10",
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"tesseract.js": "^2.0.0-beta.1",
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"tesseract.js-core": "^2.0.0-beta.13",
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"text-encoding": "^0.7.0",
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"tiny-queue": "^0.2.1",
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"webpack": "^4.41.2",
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@ -3,6 +3,8 @@ import { addKnownInstance, deleteKnownInstance } from './knownInstances'
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import { migrations } from './migrations'
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import { clearAllCaches } from './cache'
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import { lifecycle } from '../_utils/lifecycle'
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import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
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import { del } from '../_thirdparty/idb-keyval/idb-keyval'
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const openReqs = {}
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const databaseCache = {}
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@ -98,4 +100,9 @@ if (process.browser) {
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})
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}
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})
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// Clean up files that Tesseract.js may have stored. Originally we allowed it to store
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// stuff in IDB, but now we don't.
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// TODO: we can remove this after it's been deployed for a while
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scheduleIdleTask(() => del('./eng.traineddata'))
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}
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@ -17,6 +17,9 @@ let destroyWorkerHandle
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async function initWorker () {
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if (!worker) {
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worker = (await importTesseractWorker())()
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await worker.load()
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await worker.loadLanguage('eng')
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await worker.initialize('eng')
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}
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}
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@ -51,32 +54,30 @@ function getTotalProgress (progressInfo) {
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return total
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}
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function recognize (url, onProgress) {
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// TODO: have to trick tesseract into not creating a blob URL because that would break our CSP
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// see https://github.com/naptha/tesseract.js/pull/322
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let promise
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const OldBlob = window.Blob
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window.Blob = null
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try {
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promise = worker.recognize(url)
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} finally {
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window.Blob = OldBlob
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}
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promise.progress(progressInfo => {
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console.log('progress', progressInfo)
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if (onProgress && steps.find(({ status }) => status === progressInfo.status)) {
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onProgress(getTotalProgress(progressInfo))
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async function recognize (url, onProgress) {
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// TODO: it seems hacky that we have to spy on the tesseract worker to figure out its progress
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const listener = event => {
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const { data } = event
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if (onProgress && data.status === 'progress' && steps.find(({ status }) => status === data.data.status)) {
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onProgress(getTotalProgress(data.data))
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}
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})
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return promise
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}
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worker.worker.addEventListener('message', listener)
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try {
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const res = await worker.recognize(url, 'eng')
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return res
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} finally {
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worker.worker.removeEventListener('message', listener)
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}
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}
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export async function runTesseract (url, onProgress) {
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cancelDestroyWorker()
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await initWorker()
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try {
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const { text } = await recognize(url, onProgress)
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return text
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const res = await recognize(url, onProgress)
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console.log('result', res)
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return res.data.text
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} finally {
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scheduleDestroyWorker()
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}
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@ -1,20 +1,20 @@
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import workerPath from 'tesseract.js/dist/worker.min.js'
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// TODO: we should use .wasm instead of .wasm.js. But currently can't because:
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// 1. not supported https://github.com/naptha/tesseract.js/blob/9f1e782/docs/local-installation.md#corepath
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// 1. not supported https://github.com/naptha/tesseract.js/issues/282#issuecomment-492263336
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// 2. webpack defaultRules issues (fixable with https://github.com/webpack/webpack/issues/8412#issuecomment-445586591)
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// We should explore this at a later date.
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import corePath from 'tesseract.js-core/tesseract-core.wasm.js'
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import { TesseractWorker } from 'tesseract.js'
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import workerPath from 'tesseract.js/dist/worker.min.js'
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import { createWorker } from 'tesseract.js'
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// tesseract has a bug where broken image URLs will silently fail. We could spawn a new worker
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// every time to work around the issue, but then it literally spawns a new web worker for each request,
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// which seems excessive. So we just live with the bug for now.
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// https://github.com/naptha/tesseract.js/issues/325
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const { origin } = location
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export default () => new TesseractWorker({
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export default () => createWorker({
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workerPath: `${origin}/${workerPath}`,
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langPath: `${origin}/`,
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corePath: `${origin}/${corePath}`
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corePath: `${origin}/${corePath}`,
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cacheMethod: 'none', // this file is 23.4MB ungzipped, so store in service worker instead (11MB gzipped)
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workerBlobURL: false,
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logger: message => {
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console.log(message)
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}
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})
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@ -13,6 +13,17 @@ const timestamp = process.env.SAPPER_TIMESTAMP
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const ASSETS = `assets_${timestamp}`
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const WEBPACK_ASSETS = `webpack_assets_${timestamp}`
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const ON_DEMAND_CACHE = [
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{
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regex: /tesseract-core\.wasm/,
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cache: WEBPACK_ASSETS
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},
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{
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regex: /traineddata\.gz/,
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cache: ASSETS
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}
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]
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const isSafari = /Safari/.test(navigator.userAgent) && !/Chrom/.test(navigator.userAgent)
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// `static` is an array of everything in the `static` directory
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@ -20,7 +31,7 @@ const assets = __assets__
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.map(file => file.startsWith('/') ? file : `/${file}`)
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.filter(filename => !filename.endsWith('.map'))
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.filter(filename => filename !== '/robots.txt')
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.filter(filename => !filename.includes('traineddata.gz')) // Tesseract already caches it in IDB
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.filter(filename => !filename.includes('traineddata.gz')) // cache on-demand
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.filter(filename => !filename.endsWith('.webapp')) // KaiOS manifest
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// `shell` is an array of all the files generated by webpack
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@ -124,14 +135,17 @@ self.addEventListener('fetch', event => {
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return response
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}
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if (/tesseract-core\.wasm/.test(url.pathname)) {
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// cache this on-demand
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const response = await fetch(req)
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if (response && response.status >= 200 && response.status < 300) {
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const clonedResponse = response.clone()
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/* no await */ caches.open(WEBPACK_ASSETS).then(cache => cache.put(req, clonedResponse))
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for (const { regex, cache } of ON_DEMAND_CACHE) {
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if (regex.test(url.pathname)) {
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// cache this on-demand
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const response = await fetch(req)
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if (response && response.status >= 200 && response.status < 300) {
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const clonedResponse = response.clone()
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/* no await */
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caches.open(cache).then(cache => cache.put(req, clonedResponse))
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}
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return response
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}
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return response
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}
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// for routes, serve the /service-worker-index.html file from the most recent
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60
yarn.lock
60
yarn.lock
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@ -2487,11 +2487,6 @@ check-error@^1.0.2:
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resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
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integrity sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=
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check-types@^7.4.0:
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version "7.4.0"
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resolved "https://registry.yarnpkg.com/check-types/-/check-types-7.4.0.tgz#0378ec1b9616ec71f774931a3c6516fad8c152f4"
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integrity sha512-YbulWHdfP99UfZ73NcUDlNJhEIDgm9Doq9GhpyXbF+7Aegi3CVV7qqMCKTTqJxlvEvnQBp9IA+dxsGN6xK/nSg==
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check-types@^8.0.3:
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version "8.0.3"
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resolved "https://registry.yarnpkg.com/check-types/-/check-types-8.0.3.tgz#3356cca19c889544f2d7a95ed49ce508a0ecf552"
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@ -3993,10 +3988,10 @@ file-loader@^4.2.0:
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loader-utils "^1.2.3"
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schema-utils "^2.0.0"
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file-type@^10.5.0:
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version "10.11.0"
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resolved "https://registry.yarnpkg.com/file-type/-/file-type-10.11.0.tgz#2961d09e4675b9fb9a3ee6b69e9cd23f43fd1890"
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integrity sha512-uzk64HRpUZyTGZtVuvrjP0FYxzQrBf4rojot6J65YMEbwBLB0CWm0CLojVpwpmFmxcE/lkvYICgfcGozbBq6rw==
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file-type@^12.3.0:
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version "12.3.0"
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resolved "https://registry.yarnpkg.com/file-type/-/file-type-12.3.0.tgz#74d755e5dc9c5cbc7ee6f182529b453906ac88c2"
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integrity sha512-4E4Esq9KLwjYCY32E7qSmd0h7LefcniZHX+XcdJ4Wfx1uGJX7QCigiqw/U0yT7WOslm28yhxl87DJ0wHYv0RAA==
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"filereader@>= 0.10.3", filereader@^0.10.3:
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version "0.10.3"
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@ -4652,7 +4647,7 @@ icss-utils@^4.0.0, icss-utils@^4.1.1:
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dependencies:
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postcss "^7.0.14"
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idb-keyval@^3.1.0:
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idb-keyval@^3.2.0:
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version "3.2.0"
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resolved "https://registry.yarnpkg.com/idb-keyval/-/idb-keyval-3.2.0.tgz#cbbf354deb5684b6cdc84376294fc05932845bd6"
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integrity sha512-slx8Q6oywCCSfKgPgL0sEsXtPVnSbTLWpyiDcu6msHOyKOLari1TD1qocXVCft80umnkk3/Qqh3lwoFt8T/BPQ==
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@ -5080,11 +5075,6 @@ is-url@1.2.2:
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resolved "https://registry.yarnpkg.com/is-url/-/is-url-1.2.2.tgz#498905a593bf47cc2d9e7f738372bbf7696c7f26"
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integrity sha1-SYkFpZO/R8wtnn9zg3K792lsfyY=
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is-url@^1.2.4:
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version "1.2.4"
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resolved "https://registry.yarnpkg.com/is-url/-/is-url-1.2.4.tgz#04a4df46d28c4cff3d73d01ff06abeb318a1aa52"
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integrity sha512-ITvGim8FhRiYe4IQ5uHSkj7pVaPDrCTkNd3yq3cV7iZAcJdHTUMPMEHcqSOy9xZ9qFenQCvi+2wjH9a1nXqHww==
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is-utf8@^0.2.0:
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version "0.2.1"
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resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
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@ -5909,7 +5899,7 @@ node-environment-flags@1.0.5:
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object.getownpropertydescriptors "^2.0.3"
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semver "^5.7.0"
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node-fetch@^2.3.0, node-fetch@^2.6.0:
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node-fetch@^2.6.0:
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version "2.6.0"
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resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
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integrity sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==
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@ -7054,7 +7044,7 @@ regenerator-runtime@^0.11.0:
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resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
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integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
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regenerator-runtime@^0.13.2:
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regenerator-runtime@^0.13.2, regenerator-runtime@^0.13.3:
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version "0.13.3"
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resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.3.tgz#7cf6a77d8f5c6f60eb73c5fc1955b2ceb01e6bf5"
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integrity sha512-naKIZz2GQ8JWh///G7L3X6LaQUAMp2lvb1rvwwsURe/VXwD6VMfr+/1NuNw3ag8v2kY1aQ/go5SNn79O9JU7yw==
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@ -8153,36 +8143,26 @@ terser@^4.3.8:
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source-map "~0.6.1"
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source-map-support "~0.5.12"
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tesseract.js-core@^2.0.0-beta.10, tesseract.js-core@^2.0.0-beta.11:
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version "2.0.0-beta.11"
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resolved "https://registry.yarnpkg.com/tesseract.js-core/-/tesseract.js-core-2.0.0-beta.11.tgz#c35e3e689efad30138603977ad7eaaac44c7fd37"
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integrity sha512-07haKH2JYYo0OfIJoioMS9dDiI5Hrl7+r1MqjeNAAT5WpKO0ATe4cpncC8s1kz0e3s1kaC5WOwL3YJcjbJE+hg==
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tesseract.js-core@^2.0.0-beta.13:
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version "2.0.0-beta.13"
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resolved "https://registry.yarnpkg.com/tesseract.js-core/-/tesseract.js-core-2.0.0-beta.13.tgz#a21d798e88098898a9bdd935d0553215e03274f8"
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integrity sha512-GboWV/aV5h+Whito6L6Q3WCFZ2+lgxZGgjY84wSpWbTLEkkZgHsU+dz1or+3rWSABH/nuzHDco1bZRk5+f94mw==
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tesseract.js-utils@^1.0.0-beta.8:
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version "1.0.0-beta.8"
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resolved "https://registry.yarnpkg.com/tesseract.js-utils/-/tesseract.js-utils-1.0.0-beta.8.tgz#d1ef25c12609a337c3e0ac12a33f9903f3145a68"
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integrity sha512-qjHBfWfzo2o1ZY9XI0Wh2hmpp38+mIgCMOk60W5Yyie/pBl421VLBKOZUEwQgpbLnOJ24VU6Q8yXsVgtFFHcFg==
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tesseract.js@^2.0.0-beta.1:
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version "2.0.0-beta.1"
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resolved "https://registry.yarnpkg.com/tesseract.js/-/tesseract.js-2.0.0-beta.1.tgz#6729350abe60895db5478c739b1863a39524d970"
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integrity sha512-PPELe7ArJycS1ZZomecL4+MG5SCin0uHxzRhLecxGxp00Ec6rEYx9p6LwzJjyORgUlDkocP6jgb/Rczqv3DTkQ==
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dependencies:
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axios "^0.18.0"
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bmp-js "^0.1.0"
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file-type "^10.5.0"
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idb-keyval "^3.1.0"
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is-url "^1.2.4"
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zlibjs "^0.3.1"
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tesseract.js@^2.0.0-alpha.13:
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version "2.0.0-alpha.15"
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resolved "https://registry.yarnpkg.com/tesseract.js/-/tesseract.js-2.0.0-alpha.15.tgz#9887f4d1c10e25bb098fde7a10580c865c362fad"
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integrity sha512-qM1XUFVlTO+tx6oVRpd9QQ8PwQLxo3qhbfIHByUlUVIqWx6y/U9xlHIaG033/Tjfs2EQ0NAehPTOJ+eNElsXEg==
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dependencies:
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axios "^0.18.0"
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check-types "^7.4.0"
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file-type "^12.3.0"
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idb-keyval "^3.2.0"
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is-url "1.2.2"
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node-fetch "^2.3.0"
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opencollective-postinstall "^2.0.2"
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regenerator-runtime "^0.13.3"
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resolve-url "^0.2.1"
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tesseract.js-core "^2.0.0-beta.11"
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tesseract.js-utils "^1.0.0-beta.8"
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tesseract.js-core "^2.0.0-beta.13"
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zlibjs "^0.3.1"
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testcafe-browser-tools@1.6.8:
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version "1.6.8"
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