mirror of
https://github.com/veggiemonk/awesome-docker.git
synced 2024-09-06 09:32:26 +00:00
168 lines
4.7 KiB
Markdown
168 lines
4.7 KiB
Markdown
const fs = require('fs-extra');
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const fetch = require('node-fetch');
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const dayjs = require('dayjs');
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require('draftlog').into(console);
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const LOG = {
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error: (...args) => console.error('❌ ERROR', { ...args }),
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debug: (...args) => {
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if (process.env.DEBUG) console.log('💡 DEBUG: ', { ...args });
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},
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};
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const handleFailure = err => {
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LOG.error(err);
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process.exit(1);
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};
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process.on('unhandledRejection', handleFailure);
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if (!process.env.GITHUB_TOKEN) {
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LOG.error('no credentials found.');
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process.exit(1);
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}
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const TOKEN = process.env.GITHUB_TOKEN
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// --- ENV VAR ---
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const BATCH_SIZE = parseInt(process.env.BATCH_SIZE, 10) || 10;
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const DELAY = parseInt(process.env.DELAY, 10) || 3000;
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const INTERVAL = parseInt(process.env.INTERVAL, 10) || 1;
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const INTERVAL_UNIT = process.env.INTERVAL_UNIT || 'days';
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// --- FILES ---
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const DATA_FOLDER = 'data';
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const README = 'README.md';
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const DATE = dayjs().format('YYYY-MM-DDTHH.mm.ss');
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const GITHUB_METADATA_FILE = `${DATA_FOLDER}/${DATE}-fetched_repo_data.json`;
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const LATEST_FILENAME = `${DATA_FOLDER}/latest`;
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const GITHUB_REPOS = `${DATA_FOLDER}/repository.json`;
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const Authorization = `token ${TOKEN}`
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// --- HTTP ---
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const API = 'https://api.github.com/';
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const options = {
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method: 'GET',
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headers: {
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'User-Agent': 'awesome-docker script listing',
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'Content-Type': 'application/json',
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Authorization,
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},
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};
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// ----------------------------------------------------------------------------
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const removeHost = x => x.slice('https://github.com/'.length, x.length);
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const delay = ms =>
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new Promise(resolve => {
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setTimeout(() => resolve(), ms);
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});
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const get = (pathURL, opt) => {
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LOG.debug(`Fetching ${pathURL}`);
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return fetch(`${API}repos/${pathURL}`, {
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...options,
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...opt,
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})
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.catch(handleFailure)
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.then(response => {
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if (response.ok) return response.json();
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throw new Error('Network response was not ok.');
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})
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.catch(handleFailure);
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};
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const fetchAll = batch => Promise.all(batch.map(async pathURL => get(pathURL)));
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const extractAllRepos = markdown => {
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const re = /https:\/\/github\.com\/([a-zA-Z0-9-._]+)\/([a-zA-Z0-9-._]+)/g;
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const md = markdown.match(re);
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return [...new Set(md)];
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};
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const ProgressBar = (i, batchSize, total) => {
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const progress = Math.round((i / total) * 100);
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const units = Math.round(progress / 2);
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const barLine = console.draft('Starting batch...');
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return barLine(
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`[${'='.repeat(units)}${' '.repeat(50 - units)}] ${progress}% - # ${i}`,
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);
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};
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// ----------------------------------------------------------------------------
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async function batchFetchRepoMetadata(githubRepos) {
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const repos = githubRepos.map(removeHost);
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const metadata = [];
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/* eslint-disable no-await-in-loop */
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for (let i = 0; i < repos.length; i += BATCH_SIZE) {
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const batch = repos.slice(i, i + BATCH_SIZE);
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LOG.debug({ batch });
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const res = await fetchAll(batch);
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LOG.debug('batch fetched...');
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metadata.push(...res);
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ProgressBar(i, BATCH_SIZE, repos.length);
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// poor man's rate limiting so github don't ban us
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await delay(DELAY);
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}
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ProgressBar(repos.length, BATCH_SIZE, repos.length);
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return metadata;
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}
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function shouldUpdate(lastUpdateTime) {
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LOG.debug({ lastUpdateTime });
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if (!lastUpdateTime) return true;
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const hours = lastUpdateTime.slice(
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'data/YYYY-MM-DDT'.length,
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'data/YYYY-MM-DDTHH'.length,
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);
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const latestUpdate = dayjs(
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lastUpdateTime.slice('data/'.length, 'data/YYYY-MM-DD'.length),
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).add(hours, 'hour');
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LOG.debug({ latestUpdate: latestUpdate.format() });
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return dayjs().diff(latestUpdate, INTERVAL_UNIT) >= INTERVAL;
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}
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async function main() {
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try {
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const lastUpdateTime = await fs.readFile(LATEST_FILENAME, 'utf8');
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LOG.debug('Checking if updating is needed');
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if (!shouldUpdate(lastUpdateTime)) {
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LOG.debug('Last update was less than a day ago 😅. Exiting...');
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process.exit();
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}
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const markdown = await fs.readFile(README, 'utf8');
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const githubRepos = extractAllRepos(markdown);
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LOG.debug('writing repo list to disk...');
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await fs.outputJSON(GITHUB_REPOS, githubRepos, { spaces: 2 });
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LOG.debug('fetching data...');
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const metadata = await batchFetchRepoMetadata(githubRepos);
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LOG.debug('writing metadata to disk...');
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await fs.outputJSON(GITHUB_METADATA_FILE, metadata, { spaces: 2 });
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LOG.debug('✅ metadata saved');
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LOG.debug('removing latest...');
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await fs.remove(LATEST_FILENAME);
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LOG.debug('writing latest...');
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await fs.outputFile(LATEST_FILENAME, GITHUB_METADATA_FILE);
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LOG.debug('✅ late update time saved', {
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LATEST_FILENAME,
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GITHUB_METADATA_FILE,
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});
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LOG.debug('gracefully shutting down.');
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process.exit();
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} catch (err) {
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handleFailure(err);
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}
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}
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main();
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