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https://github.com/overleaf/overleaf.git
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decaffeinate: Convert run.coffee to JS
This commit is contained in:
decaffeinate
Tim Alby
parent
b6cc463a1e
commit
3b6c0d8ca6
1 changed files with 267 additions and 192 deletions
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@ -1,209 +1,284 @@
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DocUpdaterClient = require "../../acceptance/coffee/helpers/DocUpdaterClient"
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# MockTrackChangesApi = require "../../acceptance/js/helpers/MockTrackChangesApi"
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# MockWebApi = require "../../acceptance/js/helpers/MockWebApi"
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assert = require "assert"
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async = require "async"
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/*
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* decaffeinate suggestions:
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* DS101: Remove unnecessary use of Array.from
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* DS102: Remove unnecessary code created because of implicit returns
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* DS202: Simplify dynamic range loops
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* DS205: Consider reworking code to avoid use of IIFEs
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* DS207: Consider shorter variations of null checks
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* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
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*/
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const DocUpdaterClient = require("../../acceptance/coffee/helpers/DocUpdaterClient");
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// MockTrackChangesApi = require "../../acceptance/js/helpers/MockTrackChangesApi"
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// MockWebApi = require "../../acceptance/js/helpers/MockWebApi"
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const assert = require("assert");
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const async = require("async");
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insert = (string, pos, content) ->
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result = string.slice(0, pos) + content + string.slice(pos)
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return result
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const insert = function(string, pos, content) {
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const result = string.slice(0, pos) + content + string.slice(pos);
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return result;
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};
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transform = (op1, op2) ->
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if op2.p < op1.p
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const transform = function(op1, op2) {
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if (op2.p < op1.p) {
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return {
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p: op1.p + op2.i.length
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p: op1.p + op2.i.length,
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i: op1.i
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}
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else
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return op1
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};
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} else {
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return op1;
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}
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};
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class StressTestClient
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constructor: (@options = {}) ->
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@options.updateDelay ?= 200
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@project_id = @options.project_id or DocUpdaterClient.randomId()
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@doc_id = @options.doc_id or DocUpdaterClient.randomId()
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@pos = @options.pos or 0
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@content = @options.content or ""
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class StressTestClient {
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constructor(options) {
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if (options == null) { options = {}; }
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this.options = options;
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if (this.options.updateDelay == null) { this.options.updateDelay = 200; }
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this.project_id = this.options.project_id || DocUpdaterClient.randomId();
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this.doc_id = this.options.doc_id || DocUpdaterClient.randomId();
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this.pos = this.options.pos || 0;
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this.content = this.options.content || "";
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@client_id = DocUpdaterClient.randomId()
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@version = @options.version or 0
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@inflight_op = null
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@charCode = 0
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this.client_id = DocUpdaterClient.randomId();
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this.version = this.options.version || 0;
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this.inflight_op = null;
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this.charCode = 0;
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@counts = {
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conflicts: 0
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local_updates: 0
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remote_updates: 0
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this.counts = {
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conflicts: 0,
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local_updates: 0,
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remote_updates: 0,
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max_delay: 0
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}
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};
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DocUpdaterClient.subscribeToAppliedOps (channel, update) =>
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update = JSON.parse(update)
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if update.error?
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console.error new Error("Error from server: '#{update.error}'")
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return
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if update.doc_id == @doc_id
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@processReply(update)
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sendUpdate: () ->
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data = String.fromCharCode(65 + @charCode++ % 26)
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@content = insert(@content, @pos, data)
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@inflight_op = {
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i: data
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p: @pos++
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}
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@resendUpdate()
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@inflight_op_sent = Date.now()
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resendUpdate: () ->
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assert(@inflight_op?)
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DocUpdaterClient.sendUpdate(
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@project_id, @doc_id
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{
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doc: @doc_id
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op: [@inflight_op]
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v: @version
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meta:
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source: @client_id
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dupIfSource: [@client_id]
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DocUpdaterClient.subscribeToAppliedOps((channel, update) => {
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update = JSON.parse(update);
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if (update.error != null) {
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console.error(new Error(`Error from server: '${update.error}'`));
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return;
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}
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)
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@update_timer = setTimeout () =>
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console.log "[#{new Date()}] \t[#{@client_id.slice(0,4)}] WARN: Resending update after 5 seconds"
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@resendUpdate()
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, 5000
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if (update.doc_id === this.doc_id) {
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return this.processReply(update);
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}
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});
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}
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processReply: (update) ->
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if update.op.v != @version
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if update.op.v < @version
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console.log "[#{new Date()}] \t[#{@client_id.slice(0,4)}] WARN: Duplicate ack (already seen version)"
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return
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else
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console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] ERROR: Version jumped ahead (client: #{@version}, op: #{update.op.v})"
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@version++
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if update.op.meta.source == @client_id
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if @inflight_op?
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@counts.local_updates++
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@inflight_op = null
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clearTimeout @update_timer
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delay = Date.now() - @inflight_op_sent
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@counts.max_delay = Math.max(@counts.max_delay, delay)
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@continue()
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else
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console.log "[#{new Date()}] \t[#{@client_id.slice(0,4)}] WARN: Duplicate ack"
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else
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assert(update.op.op.length == 1)
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@counts.remote_updates++
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external_op = update.op.op[0]
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if @inflight_op?
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@counts.conflicts++
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@inflight_op = transform(@inflight_op, external_op)
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external_op = transform(external_op, @inflight_op)
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if external_op.p < @pos
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@pos += external_op.i.length
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@content = insert(@content, external_op.p, external_op.i)
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sendUpdate() {
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const data = String.fromCharCode(65 + (this.charCode++ % 26));
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this.content = insert(this.content, this.pos, data);
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this.inflight_op = {
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i: data,
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p: this.pos++
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};
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this.resendUpdate();
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return this.inflight_op_sent = Date.now();
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}
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continue: () ->
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if @updateCount > 0
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@updateCount--
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setTimeout () =>
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@sendUpdate()
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, @options.updateDelay * ( 0.5 + Math.random() )
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else
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@updateCallback()
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runForNUpdates: (n, callback = (error) ->) ->
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@updateCallback = callback
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@updateCount = n
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@continue()
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check: (callback = (error) ->) ->
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DocUpdaterClient.getDoc @project_id, @doc_id, (error, res, body) =>
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throw error if error?
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if !body.lines?
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return console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] ERROR: Invalid response from get doc (#{doc_id})", body
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content = body.lines.join("\n")
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version = body.version
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if content != @content
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if version == @version
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console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Error: Client content does not match server."
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console.error "Server: #{content.split('a')}"
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console.error "Client: #{@content.split('a')}"
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else
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console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Error: Version mismatch (Server: '#{version}', Client: '#{@version}')"
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if !@isContentValid(@content)
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for chunk, i in @content.split("")
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if chunk? and chunk != "a"
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console.log chunk, i
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throw new Error("bad content")
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callback()
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isChunkValid: (chunk) ->
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char = 0
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for letter, i in chunk
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if letter.charCodeAt(0) != 65 + i % 26
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console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Invalid Chunk:", chunk
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return false
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return true
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isContentValid: (content) ->
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for chunk in content.split('a')
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if chunk? and chunk != ""
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if !@isChunkValid(chunk)
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console.error "[#{new Date()}] \t[#{@client_id.slice(0,4)}] Invalid content", content
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return false
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return true
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checkDocument = (project_id, doc_id, clients, callback = (error) ->) ->
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jobs = clients.map (client) ->
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(cb) -> client.check cb
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async.parallel jobs, callback
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printSummary = (doc_id, clients) ->
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slot = require('cluster-key-slot')
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now = new Date()
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console.log "[#{now}] [#{doc_id.slice(0,4)} (slot: #{slot(doc_id)})] #{clients.length} clients..."
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for client in clients
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console.log "[#{now}] \t[#{client.client_id.slice(0,4)}] { local: #{client.counts.local_updates }, remote: #{client.counts.remote_updates}, conflicts: #{client.counts.conflicts}, max_delay: #{client.counts.max_delay} }"
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client.counts = {
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local_updates: 0
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remote_updates: 0
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conflicts: 0
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max_delay: 0
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resendUpdate() {
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assert(this.inflight_op != null);
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DocUpdaterClient.sendUpdate(
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this.project_id, this.doc_id,
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{
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doc: this.doc_id,
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op: [this.inflight_op],
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v: this.version,
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meta: {
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source: this.client_id
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},
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dupIfSource: [this.client_id]
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}
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);
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return this.update_timer = setTimeout(() => {
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console.log(`[${new Date()}] \t[${this.client_id.slice(0,4)}] WARN: Resending update after 5 seconds`);
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return this.resendUpdate();
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}
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, 5000);
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}
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CLIENT_COUNT = parseInt(process.argv[2], 10)
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UPDATE_DELAY = parseInt(process.argv[3], 10)
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SAMPLE_INTERVAL = parseInt(process.argv[4], 10)
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processReply(update) {
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if (update.op.v !== this.version) {
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if (update.op.v < this.version) {
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console.log(`[${new Date()}] \t[${this.client_id.slice(0,4)}] WARN: Duplicate ack (already seen version)`);
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return;
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} else {
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console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] ERROR: Version jumped ahead (client: ${this.version}, op: ${update.op.v})`);
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}
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}
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this.version++;
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if (update.op.meta.source === this.client_id) {
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if (this.inflight_op != null) {
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this.counts.local_updates++;
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this.inflight_op = null;
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clearTimeout(this.update_timer);
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const delay = Date.now() - this.inflight_op_sent;
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this.counts.max_delay = Math.max(this.counts.max_delay, delay);
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return this.continue();
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} else {
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return console.log(`[${new Date()}] \t[${this.client_id.slice(0,4)}] WARN: Duplicate ack`);
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}
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} else {
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assert(update.op.op.length === 1);
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this.counts.remote_updates++;
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let external_op = update.op.op[0];
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if (this.inflight_op != null) {
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this.counts.conflicts++;
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this.inflight_op = transform(this.inflight_op, external_op);
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external_op = transform(external_op, this.inflight_op);
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}
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if (external_op.p < this.pos) {
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this.pos += external_op.i.length;
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}
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return this.content = insert(this.content, external_op.p, external_op.i);
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}
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}
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for doc_and_project_id in process.argv.slice(5)
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do (doc_and_project_id) ->
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[project_id, doc_id] = doc_and_project_id.split(":")
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console.log {project_id, doc_id}
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DocUpdaterClient.setDocLines project_id, doc_id, [(new Array(CLIENT_COUNT + 2)).join('a')], null, null, (error) ->
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throw error if error?
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DocUpdaterClient.getDoc project_id, doc_id, (error, res, body) =>
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throw error if error?
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if !body.lines?
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return console.error "[#{new Date()}] ERROR: Invalid response from get doc (#{doc_id})", body
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content = body.lines.join("\n")
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version = body.version
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continue() {
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if (this.updateCount > 0) {
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this.updateCount--;
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return setTimeout(() => {
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return this.sendUpdate();
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}
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, this.options.updateDelay * ( 0.5 + Math.random() ));
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} else {
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return this.updateCallback();
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}
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}
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clients = []
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for pos in [1..CLIENT_COUNT]
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do (pos) ->
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client = new StressTestClient({doc_id, project_id, content, pos: pos, version: version, updateDelay: UPDATE_DELAY})
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clients.push client
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runForNUpdates(n, callback) {
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if (callback == null) { callback = function(error) {}; }
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this.updateCallback = callback;
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this.updateCount = n;
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return this.continue();
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}
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do runBatch = () ->
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jobs = clients.map (client) ->
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(cb) -> client.runForNUpdates(SAMPLE_INTERVAL / UPDATE_DELAY, cb)
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async.parallel jobs, (error) ->
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throw error if error?
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printSummary(doc_id, clients)
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checkDocument project_id, doc_id, clients, (error) ->
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throw error if error?
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runBatch()
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check(callback) {
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if (callback == null) { callback = function(error) {}; }
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return DocUpdaterClient.getDoc(this.project_id, this.doc_id, (error, res, body) => {
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if (error != null) { throw error; }
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if ((body.lines == null)) {
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return console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] ERROR: Invalid response from get doc (${doc_id})`, body);
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}
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const content = body.lines.join("\n");
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const {
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version
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} = body;
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if (content !== this.content) {
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if (version === this.version) {
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console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Error: Client content does not match server.`);
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console.error(`Server: ${content.split('a')}`);
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console.error(`Client: ${this.content.split('a')}`);
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} else {
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console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Error: Version mismatch (Server: '${version}', Client: '${this.version}')`);
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}
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}
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if (!this.isContentValid(this.content)) {
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const iterable = this.content.split("");
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for (let i = 0; i < iterable.length; i++) {
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const chunk = iterable[i];
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if ((chunk != null) && (chunk !== "a")) {
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console.log(chunk, i);
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}
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}
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throw new Error("bad content");
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}
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return callback();
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});
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}
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isChunkValid(chunk) {
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const char = 0;
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for (let i = 0; i < chunk.length; i++) {
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const letter = chunk[i];
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if (letter.charCodeAt(0) !== (65 + (i % 26))) {
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console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Invalid Chunk:`, chunk);
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return false;
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}
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}
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return true;
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}
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isContentValid(content) {
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for (let chunk of Array.from(content.split('a'))) {
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if ((chunk != null) && (chunk !== "")) {
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if (!this.isChunkValid(chunk)) {
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console.error(`[${new Date()}] \t[${this.client_id.slice(0,4)}] Invalid content`, content);
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return false;
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}
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}
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}
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return true;
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}
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}
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const checkDocument = function(project_id, doc_id, clients, callback) {
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if (callback == null) { callback = function(error) {}; }
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const jobs = clients.map(client => cb => client.check(cb));
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return async.parallel(jobs, callback);
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};
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const printSummary = function(doc_id, clients) {
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const slot = require('cluster-key-slot');
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const now = new Date();
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console.log(`[${now}] [${doc_id.slice(0,4)} (slot: ${slot(doc_id)})] ${clients.length} clients...`);
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return (() => {
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const result = [];
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for (let client of Array.from(clients)) {
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console.log(`[${now}] \t[${client.client_id.slice(0,4)}] { local: ${client.counts.local_updates }, remote: ${client.counts.remote_updates}, conflicts: ${client.counts.conflicts}, max_delay: ${client.counts.max_delay} }`);
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result.push(client.counts = {
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local_updates: 0,
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remote_updates: 0,
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conflicts: 0,
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max_delay: 0
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});
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}
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return result;
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})();
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};
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const CLIENT_COUNT = parseInt(process.argv[2], 10);
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const UPDATE_DELAY = parseInt(process.argv[3], 10);
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const SAMPLE_INTERVAL = parseInt(process.argv[4], 10);
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for (let doc_and_project_id of Array.from(process.argv.slice(5))) {
|
||||
(function(doc_and_project_id) {
|
||||
const [project_id, doc_id] = Array.from(doc_and_project_id.split(":"));
|
||||
console.log({project_id, doc_id});
|
||||
return DocUpdaterClient.setDocLines(project_id, doc_id, [(new Array(CLIENT_COUNT + 2)).join('a')], null, null, function(error) {
|
||||
if (error != null) { throw error; }
|
||||
return DocUpdaterClient.getDoc(project_id, doc_id, (error, res, body) => {
|
||||
let runBatch;
|
||||
if (error != null) { throw error; }
|
||||
if ((body.lines == null)) {
|
||||
return console.error(`[${new Date()}] ERROR: Invalid response from get doc (${doc_id})`, body);
|
||||
}
|
||||
const content = body.lines.join("\n");
|
||||
const {
|
||||
version
|
||||
} = body;
|
||||
|
||||
const clients = [];
|
||||
for (let pos = 1, end = CLIENT_COUNT, asc = 1 <= end; asc ? pos <= end : pos >= end; asc ? pos++ : pos--) {
|
||||
(function(pos) {
|
||||
const client = new StressTestClient({doc_id, project_id, content, pos, version, updateDelay: UPDATE_DELAY});
|
||||
return clients.push(client);
|
||||
})(pos);
|
||||
}
|
||||
|
||||
return (runBatch = function() {
|
||||
const jobs = clients.map(client => cb => client.runForNUpdates(SAMPLE_INTERVAL / UPDATE_DELAY, cb));
|
||||
return async.parallel(jobs, function(error) {
|
||||
if (error != null) { throw error; }
|
||||
printSummary(doc_id, clients);
|
||||
return checkDocument(project_id, doc_id, clients, function(error) {
|
||||
if (error != null) { throw error; }
|
||||
return runBatch();
|
||||
});
|
||||
});
|
||||
})();
|
||||
});
|
||||
});
|
||||
})(doc_and_project_id);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue