mirror of
https://github.com/element-hq/element-web.git
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b2d4639ec9
This should (hopefully) resolve occasional errors where the rename step would fail because the temporary file did not exist. In addition, this also exits with an error code if something goes wrong so we notice it early, rather than having to scroll through pages of logs at release time.
97 lines
3.1 KiB
JavaScript
Executable file
97 lines
3.1 KiB
JavaScript
Executable file
#!/usr/bin/env node
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const fs = require('fs');
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const { promises: fsp } = fs;
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const path = require('path');
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const glob = require('glob');
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const util = require('util');
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const args = require('minimist')(process.argv);
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const chokidar = require('chokidar');
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const componentIndex = path.join('src', 'component-index.js');
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const componentIndexTmp = componentIndex+".tmp";
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const componentsDir = path.join('src', 'components');
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const componentJsGlob = '**/*.js';
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const componentTsGlob = '**/*.tsx';
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let prevFiles = [];
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async function reskindex() {
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const jsFiles = glob.sync(componentJsGlob, {cwd: componentsDir}).sort();
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const tsFiles = glob.sync(componentTsGlob, {cwd: componentsDir}).sort();
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const files = [...tsFiles, ...jsFiles];
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if (!filesHaveChanged(files, prevFiles)) {
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return;
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}
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prevFiles = files;
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const header = args.h || args.header;
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const strm = fs.createWriteStream(componentIndexTmp);
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// Wait for the open event to ensure the file descriptor is set
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await new Promise(resolve => strm.once("open", resolve));
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if (header) {
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strm.write(fs.readFileSync(header));
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strm.write('\n');
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}
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strm.write("/*\n");
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strm.write(" * THIS FILE IS AUTO-GENERATED\n");
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strm.write(" * You can edit it you like, but your changes will be overwritten,\n");
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strm.write(" * so you'd just be trying to swim upstream like a salmon.\n");
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strm.write(" * You are not a salmon.\n");
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strm.write(" */\n\n");
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strm.write("let components = {};\n");
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for (let i = 0; i < files.length; ++i) {
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const file = files[i].replace('.js', '').replace('.tsx', '');
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const moduleName = (file.replace(/\//g, '.'));
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const importName = moduleName.replace(/\./g, "$");
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strm.write("import " + importName + " from './components/" + file + "';\n");
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strm.write(importName + " && (components['"+moduleName+"'] = " + importName + ");");
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strm.write('\n');
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strm.uncork();
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}
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strm.write("export {components};\n");
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// Ensure the file has been fully written to disk before proceeding
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await util.promisify(fs.fsync)(strm.fd);
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await util.promisify(strm.end);
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await fsp.rename(componentIndexTmp, componentIndex);
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}
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// Expects both arrays of file names to be sorted
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function filesHaveChanged(files, prevFiles) {
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if (files.length !== prevFiles.length) {
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return true;
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}
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// Check for name changes
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for (let i = 0; i < files.length; i++) {
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if (prevFiles[i] !== files[i]) {
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return true;
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}
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}
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return false;
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}
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// Wrapper since await at the top level is not well supported yet
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function run() {
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(async function() {
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await reskindex();
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console.log("Reskindex completed");
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})();
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}
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// -w indicates watch mode where any FS events will trigger reskindex
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if (!args.w) {
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run();
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return;
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}
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let watchDebouncer = null;
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chokidar.watch(path.join(componentsDir, componentJsGlob)).on('all', (event, path) => {
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if (path === componentIndex) return;
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if (watchDebouncer) clearTimeout(watchDebouncer);
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watchDebouncer = setTimeout(run, 1000);
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});
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