2019-06-14 22:35:41 +02:00
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// @ts-check
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const fs = require("fs");
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const git = require('simple-git/promise')('.')
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const readline = require('readline')
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/** @typedef {{ [s: string]: number}} Histogram */
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async function main() {
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/** @type {Histogram} */
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const edits = Object.create(null)
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/** @type {Histogram} */
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const perf = JSON.parse(fs.readFileSync('.parallelperf.json', 'utf8'))
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await collectCommits(git, "release-2.3", "master", /*author*/ undefined, files => fillMap(files, edits))
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const totalTime = Object.values(perf).reduce((n,m) => n + m, 0)
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const untouched = Object.values(perf).length - Object.values(edits).length
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const totalEdits = Object.values(edits).reduce((n,m) => n + m, 0) + untouched + Object.values(edits).length
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let i = 0
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/** @type {{ name: string, time: number, edits: number, cost: number }[]} */
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let data = []
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for (const k in perf) {
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const otherk = k.replace(/tsrunner-[a-z-]+?:\/\//, '')
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const percentTime = perf[k] / totalTime
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const percentHits = (1 + (edits[otherk] || 0)) / totalEdits
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const cost = 5 + Math.log(percentTime / percentHits)
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data.push({ name: otherk, time: perf[k], edits: 1 + (edits[otherk] || 0), cost})
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if (edits[otherk])
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i++
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}
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const output = {
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totalTime,
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totalEdits,
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data: data.sort((x,y) => y.cost - x.cost).map(x => ({ ...x, cost: x.cost.toFixed(2) }))
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}
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2019-06-19 17:40:06 +02:00
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fs.writeFileSync('tests/.test-cost.json', JSON.stringify(output), 'utf8')
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2019-06-14 22:35:41 +02:00
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}
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main().catch(e => {
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console.log(e);
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process.exit(1);
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})
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/**
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* @param {string[]} files
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* @param {Histogram} histogram
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*/
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function fillMap(files, histogram) {
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// keep edits to test cases (but not /users), and not file moves
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const tests = files.filter(f => f.startsWith('tests/cases/') && !f.startsWith('tests/cases/user') && !/=>/.test(f))
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for (const test of tests) {
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histogram[test] = (histogram[test] || 0) + 1
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}
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}
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/**
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* @param {string} s
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*/
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function isSquashMergeMessage(s) {
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return /\(#[0-9]+\)$/.test(s)
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}
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/**
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* @param {string} s
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*/
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function isMergeCommit(s) {
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return /Merge pull request #[0-9]+/.test(s)
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}
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/**
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* @param {string} s
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*/
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function parseFiles(s) {
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const lines = s.split('\n')
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// Note that slice(2) only works for merge commits, which have an empty newline after the title
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return lines.slice(2, lines.length - 2).map(line => line.split("|")[0].trim())
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}
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/**
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* @param {import('simple-git/promise').SimpleGit} git
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* @param {string} from
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* @param {string} to
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* @param {string | undefined} author - only include commits from this author
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* @param {(files: string[]) => void} update
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*/
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async function collectCommits(git, from, to, author, update) {
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let i = 0
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for (const commit of (await git.log({ from, to })).all) {
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i++
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if ((!author || commit.author_name === author) && isMergeCommit(commit.message) || isSquashMergeMessage(commit.message)) {
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readline.clearLine(process.stdout, /*left*/ -1)
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readline.cursorTo(process.stdout, 0)
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process.stdout.write(i + ": " + commit.date)
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const files = parseFiles(await git.show([commit.hash, "--stat=1000,960,40", "--pretty=oneline"]))
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update(files)
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}
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}
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}
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