38ba9f9187
As babelify is slow, it may be desriable to not run it during development. This is OK if the browser is recent enough to understand ES6 natively. (This does not include current Firefox due to it having problems with for(const … in …), https://bugzilla.mozilla.org/show_bug.cgi?id=1094995.) For older browsers, or to check issues possibly introduced by babelify, adding /babel as the first component of the path will switch to a version which has been processed by babelify. This is also used for screenshots.
113 lines
3.1 KiB
JavaScript
113 lines
3.1 KiB
JavaScript
/* eslint no-console:0 */
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const fs = require("fs");
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const path = require("path");
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const babelify = require("babelify");
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const browserify = require("browserify");
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const express = require("express");
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const glob = require("glob");
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const less = require("less");
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const app = express();
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if (require.main === module) {
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app.use(require("morgan")(
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":date[iso] :method :url HTTP/:http-version - :status"));
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}
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function serveBrowserified(file, standaloneName, doBabelify) {
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return function(req, res, next) {
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let files;
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if (Array.isArray(file)) {
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files = file.map(function(f) { return path.join(__dirname, f); });
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} else if (file.indexOf("*") !== -1) {
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files = glob.sync(file, {cwd: __dirname});
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} else {
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files = [path.join(__dirname, file)];
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}
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const options = {};
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if (doBabelify) {
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options.transform = [babelify];
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}
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if (standaloneName) {
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options.standalone = standaloneName;
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}
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const b = browserify(files, options);
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const stream = b.bundle();
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let body = "";
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stream.on("data", function(s) { body += s; });
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stream.on("error", function(e) { next(e); });
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stream.on("end", function() {
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res.setHeader("Content-Type", "text/javascript");
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res.send(body);
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});
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};
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}
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function twoBrowserified(url, file, standaloneName) {
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app.get(url, serveBrowserified(file, standaloneName, false));
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app.get("/babel" + url, serveBrowserified(file, standaloneName, true));
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}
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function twoUse(url, handler) {
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app.use(url, handler);
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app.use("/babel" + url, handler);
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}
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function twoStatic(url, file) {
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twoUse(url, express.static(path.join(__dirname, file)));
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}
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twoBrowserified("/katex.js", "katex", "katex");
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twoUse("/test/jasmine", express.static(path.dirname(
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require.resolve("jasmine-core/lib/jasmine-core/jasmine.js"))));
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twoBrowserified("/test/katex-spec.js", "test/*[Ss]pec.js");
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twoBrowserified(
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"/contrib/auto-render/auto-render.js",
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"contrib/auto-render/auto-render",
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"renderMathInElement");
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twoUse("/katex.css", function(req, res, next) {
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const lessfile = path.join(__dirname, "static", "katex.less");
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fs.readFile(lessfile, {encoding: "utf8"}, function(err, data) {
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if (err) {
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next(err);
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return;
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}
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less.render(data, {
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paths: [path.join(__dirname, "static")],
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filename: "katex.less",
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}, function(err, output) {
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if (err) {
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console.error(String(err));
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next(err);
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return;
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}
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res.setHeader("Content-Type", "text/css");
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res.send(output.css);
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});
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});
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});
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twoStatic("", "static");
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twoStatic("", "build");
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twoStatic("/test", "test");
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twoStatic("/contrib", "contrib");
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app.use(function(err, req, res, next) {
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console.error(err.stack);
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res.setHeader("Content-Type", "text/plain");
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res.send(500, err.stack);
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});
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if (require.main === module) {
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app.listen(7936);
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console.log("Serving on http://0.0.0.0:7936/ ...");
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}
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module.exports = app;
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