From 4889e9732d2458d60e2a079d3e54e128f6ce1b53 Mon Sep 17 00:00:00 2001 From: BoHong Li Date: Wed, 8 Mar 2017 18:45:51 +0800 Subject: Use JavaScript Standard Style Introduce JavaScript Standard Style as project style rule, and fixed all fail on backend code. --- lib/workers/dmpWorker.js | 249 +++++++++++++++++++++++------------------------ 1 file changed, 123 insertions(+), 126 deletions(-) (limited to 'lib/workers') diff --git a/lib/workers/dmpWorker.js b/lib/workers/dmpWorker.js index 8e69636e..6a1da981 100644 --- a/lib/workers/dmpWorker.js +++ b/lib/workers/dmpWorker.js @@ -1,140 +1,137 @@ // external modules -var DiffMatchPatch = require('diff-match-patch'); -var dmp = new DiffMatchPatch(); +var DiffMatchPatch = require('diff-match-patch') +var dmp = new DiffMatchPatch() // core -var config = require("../config.js"); -var logger = require("../logger.js"); +var config = require('../config.js') +var logger = require('../logger.js') -process.on('message', function(data) { - if (!data || !data.msg || !data.cacheKey) { - return logger.error('dmp worker error: not enough data'); - } - switch (data.msg) { - case 'create patch': - if (!data.hasOwnProperty('lastDoc') || !data.hasOwnProperty('currDoc')) { - return logger.error('dmp worker error: not enough data on create patch'); - } - try { - var patch = createPatch(data.lastDoc, data.currDoc); - process.send({ - msg: 'check', - result: patch, - cacheKey: data.cacheKey - }); - } catch (err) { - logger.error('dmp worker error', err); - process.send({ - msg: 'error', - error: err, - cacheKey: data.cacheKey - }); - } - break; - case 'get revision': - if (!data.hasOwnProperty('revisions') || !data.hasOwnProperty('count')) { - return logger.error('dmp worker error: not enough data on get revision'); - } - try { - var result = getRevision(data.revisions, data.count); - process.send({ - msg: 'check', - result: result, - cacheKey: data.cacheKey - }); - } catch (err) { - logger.error('dmp worker error', err); - process.send({ - msg: 'error', - error: err, - cacheKey: data.cacheKey - }); - } - break; - } -}); +process.on('message', function (data) { + if (!data || !data.msg || !data.cacheKey) { + return logger.error('dmp worker error: not enough data') + } + switch (data.msg) { + case 'create patch': + if (!data.hasOwnProperty('lastDoc') || !data.hasOwnProperty('currDoc')) { + return logger.error('dmp worker error: not enough data on create patch') + } + try { + var patch = createPatch(data.lastDoc, data.currDoc) + process.send({ + msg: 'check', + result: patch, + cacheKey: data.cacheKey + }) + } catch (err) { + logger.error('dmp worker error', err) + process.send({ + msg: 'error', + error: err, + cacheKey: data.cacheKey + }) + } + break + case 'get revision': + if (!data.hasOwnProperty('revisions') || !data.hasOwnProperty('count')) { + return logger.error('dmp worker error: not enough data on get revision') + } + try { + var result = getRevision(data.revisions, data.count) + process.send({ + msg: 'check', + result: result, + cacheKey: data.cacheKey + }) + } catch (err) { + logger.error('dmp worker error', err) + process.send({ + msg: 'error', + error: err, + cacheKey: data.cacheKey + }) + } + break + } +}) -function createPatch(lastDoc, currDoc) { - var ms_start = (new Date()).getTime(); - var diff = dmp.diff_main(lastDoc, currDoc); - var patch = dmp.patch_make(lastDoc, diff); - patch = dmp.patch_toText(patch); - var ms_end = (new Date()).getTime(); - if (config.debug) { - logger.info(patch); - logger.info((ms_end - ms_start) + 'ms'); - } - return patch; +function createPatch (lastDoc, currDoc) { + var msStart = (new Date()).getTime() + var diff = dmp.diff_main(lastDoc, currDoc) + var patch = dmp.patch_make(lastDoc, diff) + patch = dmp.patch_toText(patch) + var msEnd = (new Date()).getTime() + if (config.debug) { + logger.info(patch) + logger.info((msEnd - msStart) + 'ms') + } + return patch } -function getRevision(revisions, count) { - var ms_start = (new Date()).getTime(); - var startContent = null; - var lastPatch = []; - var applyPatches = []; - var authorship = []; - if (count <= Math.round(revisions.length / 2)) { - // start from top to target - for (var i = 0; i < count; i++) { - var revision = revisions[i]; - if (i == 0) { - startContent = revision.content || revision.lastContent; - } - if (i != count - 1) { - var patch = dmp.patch_fromText(revision.patch); - applyPatches = applyPatches.concat(patch); - } - lastPatch = revision.patch; - authorship = revision.authorship; - } - // swap DIFF_INSERT and DIFF_DELETE to achieve unpatching - for (var i = 0, l = applyPatches.length; i < l; i++) { - for (var j = 0, m = applyPatches[i].diffs.length; j < m; j++) { - var diff = applyPatches[i].diffs[j]; - if (diff[0] == DiffMatchPatch.DIFF_INSERT) - diff[0] = DiffMatchPatch.DIFF_DELETE; - else if (diff[0] == DiffMatchPatch.DIFF_DELETE) - diff[0] = DiffMatchPatch.DIFF_INSERT; - } - } - } else { - // start from bottom to target - var l = revisions.length - 1; - for (var i = l; i >= count - 1; i--) { - var revision = revisions[i]; - if (i == l) { - startContent = revision.lastContent; - authorship = revision.authorship; - } - if (revision.patch) { - var patch = dmp.patch_fromText(revision.patch); - applyPatches = applyPatches.concat(patch); - } - lastPatch = revision.patch; - authorship = revision.authorship; - } +function getRevision (revisions, count) { + var msStart = (new Date()).getTime() + var startContent = null + var lastPatch = [] + var applyPatches = [] + var authorship = [] + if (count <= Math.round(revisions.length / 2)) { + // start from top to target + for (let i = 0; i < count; i++) { + let revision = revisions[i] + if (i === 0) { + startContent = revision.content || revision.lastContent + } + if (i !== count - 1) { + let patch = dmp.patch_fromText(revision.patch) + applyPatches = applyPatches.concat(patch) + } + lastPatch = revision.patch + authorship = revision.authorship } - try { - var finalContent = dmp.patch_apply(applyPatches, startContent)[0]; - } catch (err) { - throw new Error(err); + // swap DIFF_INSERT and DIFF_DELETE to achieve unpatching + for (let i = 0, l = applyPatches.length; i < l; i++) { + for (let j = 0, m = applyPatches[i].diffs.length; j < m; j++) { + var diff = applyPatches[i].diffs[j] + if (diff[0] === DiffMatchPatch.DIFF_INSERT) { diff[0] = DiffMatchPatch.DIFF_DELETE } else if (diff[0] === DiffMatchPatch.DIFF_DELETE) { diff[0] = DiffMatchPatch.DIFF_INSERT } + } } - var data = { - content: finalContent, - patch: dmp.patch_fromText(lastPatch), - authorship: authorship - }; - var ms_end = (new Date()).getTime(); - if (config.debug) { - logger.info((ms_end - ms_start) + 'ms'); + } else { + // start from bottom to target + var l = revisions.length - 1 + for (var i = l; i >= count - 1; i--) { + let revision = revisions[i] + if (i === l) { + startContent = revision.lastContent + authorship = revision.authorship + } + if (revision.patch) { + let patch = dmp.patch_fromText(revision.patch) + applyPatches = applyPatches.concat(patch) + } + lastPatch = revision.patch + authorship = revision.authorship } - return data; + } + try { + var finalContent = dmp.patch_apply(applyPatches, startContent)[0] + } catch (err) { + throw new Error(err) + } + var data = { + content: finalContent, + patch: dmp.patch_fromText(lastPatch), + authorship: authorship + } + var msEnd = (new Date()).getTime() + if (config.debug) { + logger.info((msEnd - msStart) + 'ms') + } + return data } // log uncaught exception process.on('uncaughtException', function (err) { - logger.error('An uncaught exception has occured.'); - logger.error(err); - logger.error('Process will exit now.'); - process.exit(1); -}); \ No newline at end of file + logger.error('An uncaught exception has occured.') + logger.error(err) + logger.error('Process will exit now.') + process.exit(1) +}) -- cgit v1.2.3