element-web/scripts/reskindex.js

88 lines
2.6 KiB
JavaScript
Executable file

#!/usr/bin/env node
var fs = require('fs');
var path = require('path');
var glob = require('glob');
var args = require('optimist').argv;
var chokidar = require('chokidar');
var componentIndex = path.join('src', 'component-index.js');
var componentsDir = path.join('src', 'components');
var componentGlob = '**/*.js';
var prevFiles = [];
function reskindex() {
var files = glob.sync(componentGlob, {cwd: componentsDir}).sort();
if (!filesHaveChanged(files, prevFiles)) {
return;
}
prevFiles = files;
var header = args.h || args.header;
var packageJson = JSON.parse(fs.readFileSync('./package.json'));
var strm = fs.createWriteStream(componentIndex);
if (header) {
strm.write(fs.readFileSync(header));
strm.write('\n');
}
strm.write("/*\n");
strm.write(" * THIS FILE IS AUTO-GENERATED\n");
strm.write(" * You can edit it you like, but your changes will be overwritten,\n");
strm.write(" * so you'd just be trying to swim upstream like a salmon.\n");
strm.write(" * You are not a salmon.\n");
strm.write(" */\n\n");
if (packageJson['matrix-react-parent']) {
strm.write(
"module.exports.components = require('"+
packageJson['matrix-react-parent']+
"/lib/component-index').components;\n\n"
);
} else {
strm.write("module.exports.components = {};\n");
}
for (var i = 0; i < files.length; ++i) {
var file = files[i].replace('.js', '');
var moduleName = (file.replace(/\//g, '.'));
var importName = moduleName.replace(/\./g, "$");
strm.write("import " + importName + " from './components/" + file + "';\n");
strm.write(importName + " && (module.exports.components['"+moduleName+"'] = " + importName + ");");
strm.write('\n');
strm.uncork();
}
strm.end();
console.log('Reskindex: completed');
}
// Expects both arrays of file names to be sorted
function filesHaveChanged(files, prevFiles) {
if (files.length !== prevFiles.length) {
return true;
}
// Check for name changes
for (var i = 0; i < files.length; i++) {
if (prevFiles[i] !== files[i]) {
return true;
}
}
return false;
}
// -w indicates watch mode where any FS events will trigger reskindex
if (!args.w) {
reskindex();
return;
}
var watchDebouncer = null;
chokidar.watch(path.join(componentsDir, componentGlob)).on('all', (event, path) => {
if (path === componentIndex) return;
if (watchDebouncer) clearTimeout(watchDebouncer);
watchDebouncer = setTimeout(reskindex, 1000);
});