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dmpWorker.ts: Wrap process.send in a function to not lose this 🐛

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Signed-off-by: David Mehren <dmehren1@gmail.com>
This commit is contained in:
David Mehren 2020-04-13 21:40:00 +02:00
parent d89cf23fdd
commit 2408aef54c
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GPG key ID: 6017AF117F9756CB
1 changed files with 25 additions and 17 deletions
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42
lib/workers/dmpWorker.ts
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@ -1,19 +1,23 @@
// external modules
// eslint-disable-next-line @typescript-eslint/camelcase
import { diff_match_patch, patch_obj, DIFF_INSERT, DIFF_DELETE } from 'diff-match-patch'
import { DIFF_DELETE, DIFF_INSERT, diff_match_patch, patch_obj } from 'diff-match-patch'
import { logger } from '../logger'
import { Revision } from '../models'
// Function for suppressing TS2722
// eslint-disable-next-line @typescript-eslint/unbound-method,@typescript-eslint/no-empty-function
const send = process.send || function (): boolean {
function processSend (options): boolean {
if (process?.send !== undefined) {
return process.send(options)
}
return false
}
// eslint-disable-next-line @typescript-eslint/camelcase,new-cap
const dmp: diff_match_patch = new diff_match_patch()
// eslint-disable-next-line @typescript-eslint/camelcase
function getRevision (revisions: Revision[], count: number): {content: string; patch: patch_obj[]; authorship: string} {
function getRevision (revisions: Revision[], count: number): { content: string; patch: patch_obj[]; authorship: string } {
const msStart = (new Date()).getTime()
let startContent = ''
let lastPatch = ''
@ -39,7 +43,11 @@ function getRevision (revisions: Revision[], count: number): {content: string; p
for (let i = 0, l = applyPatches.length; i < l; i++) {
for (let j = 0, m = applyPatches[i].diffs.length; j < m; j++) {
const diff = applyPatches[i].diffs[j]
if (diff[0] === DIFF_INSERT) { diff[0] = DIFF_DELETE } else if (diff[0] === DIFF_DELETE) { diff[0] = DIFF_INSERT }
if (diff[0] === DIFF_INSERT) {
diff[0] = DIFF_DELETE
} else if (diff[0] === DIFF_DELETE) {
diff[0] = DIFF_INSERT
}
}
}
} else {
@ -89,12 +97,12 @@ function createPatch (lastDoc: string, currDoc: string): string {
}
class Data {
msg: string;
cacheKey: any;
lastDoc?: string;
currDoc?: string;
revisions?: Revision[];
count?: number;
msg: string
cacheKey: any
lastDoc?: string
currDoc?: string
revisions?: Revision[]
count?: number
}
process.on('message', function (data: Data) {
@ -108,14 +116,14 @@ process.on('message', function (data: Data) {
}
try {
const patch: string = createPatch(data.lastDoc, data.currDoc)
send({
processSend({
msg: 'check',
result: patch,
cacheKey: data.cacheKey
})
} catch (err) {
logger.error('dmp worker error', err)
send({
logger.error('create patch: dmp worker error', err)
processSend({
msg: 'error',
error: err,
cacheKey: data.cacheKey
@ -128,15 +136,15 @@ process.on('message', function (data: Data) {
}
try {
// eslint-disable-next-line @typescript-eslint/camelcase
const result: {content: string; patch: patch_obj[]; authorship: string} = getRevision(data.revisions, data.count)
send({
const result: { content: string; patch: patch_obj[]; authorship: string } = getRevision(data.revisions, data.count)
processSend({
msg: 'check',
result: result,
cacheKey: data.cacheKey
})
} catch (err) {
logger.error('dmp worker error', err)
send({
logger.error('get revision: dmp worker error', err)
processSend({
msg: 'error',
error: err,
cacheKey: data.cacheKey