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term/pkg/axios/bin/pr.js
2024-03-23 20:25:41 +09:00

76 lines
1.7 KiB
JavaScript

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