76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
import util from "util";
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import cp from "child_process";
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import Handlebars from "handlebars";
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import fs from "fs/promises";
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import prettyBytes from 'pretty-bytes';
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import {gzipSize} from 'gzip-size';
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const exec = util.promisify(cp.exec);
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const getBlobHistory = async (filepath, maxCount= 5) => {
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const log = (await exec(
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`git log --max-count=${maxCount} --no-walk --tags=v* --oneline --format=%H%d -- ${filepath}`
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)).stdout;
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const commits = [];
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let match;
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const regexp = /^(\w+) \(tag: (v?[.\d]+)\)$/gm;
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while((match = regexp.exec(log))) {
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commits.push({
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sha: match[1],
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tag: match[2],
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size: await getBlobSize(filepath, match[1])
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})
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}
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return commits;
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}
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const getBlobSize = async (filepath, sha ='HEAD') => {
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const size = (await exec(
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`git cat-file -s ${sha}:${filepath}`
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)).stdout;
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return size ? +size : 0;
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}
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const generateFileReport = async (files) => {
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const stat = {};
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for(const [name, file] of Object.entries(files)) {
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const commits = await getBlobHistory(file);
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stat[file] = {
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name,
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size: (await fs.stat(file)).size,
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path: file,
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gzip: await gzipSize(String(await fs.readFile(file))),
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commits,
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history: commits.map(({tag, size}) => `${prettyBytes(size)} (${tag})`).join(' ← ')
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}
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}
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return stat;
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}
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const generateBody = async ({files, template = './templates/pr.hbs'} = {}) => {
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const data = {
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files: await generateFileReport(files)
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};
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Handlebars.registerHelper('filesize', (bytes)=> prettyBytes(bytes));
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return Handlebars.compile(String(await fs.readFile(template)))(data);
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}
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console.log(await generateBody({
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files: {
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'Browser build (UMD)' : './dist/axios.min.js',
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'Browser build (ESM)' : './dist/esm/axios.min.js',
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}
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}));
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