Using esbuild instead of rollup (#1298)

docs/changelog.md

@@ -8,6 +8,7 @@ Features
 
 - Added a `docked` field and attribute for the `<py-terminal>` custom element, enabled by default when the terminal is in `auto` mode, and able to dock the terminal at the bottom of the page with auto scroll on new code execution.
 
+
 Bug fixes
 ---------
 
@@ -17,6 +18,8 @@ Enhancements
 ------------
 
 - Py-REPL tests now run on both osx and non osx OSs
+- migrated from *rollup* to *esbuild* to create artifacts
+- updated `@codemirror` dependency to its latest
 
 2023.01.1
 =========

pyscriptjs/Makefile

@@ -58,6 +58,9 @@ dev:
 build:
 	npm run build
 
+build-fast:
+	node esbuild.js
+
 examples:
 	mkdir -p ./examples
 	cp -r ../examples/* ./examples

pyscriptjs/esbuild.js

@@ -0,0 +1,84 @@
+const { build } = require('esbuild');
+const { spawn } = require('child_process');
+const { join } = require('path');
+const { watchFile } = require('fs');
+const { cp, lstat, readdir } = require('fs/promises');
+
+const production = !process.env.NODE_WATCH || process.env.NODE_ENV === 'production';
+
+const copy_targets = [
+    { src: 'public/index.html', dest: 'build' },
+    { src: 'src/plugins/python/*', dest: 'build/plugins/python' },
+];
+
+if (!production) {
+    copy_targets.push({ src: 'build/*', dest: 'examples/build' });
+}
+
+const pyScriptConfig = {
+    entryPoints: ['src/main.ts'],
+    loader: { '.py': 'text' },
+    bundle: true,
+    format: 'iife',
+    globalName: 'pyscript',
+};
+
+const copyPath = (source, dest, ...rest) => cp(join(__dirname, source), join(__dirname, dest), ...rest);
+
+const esbuild = async () => {
+    const timer = `\x1b[1mpyscript\x1b[0m \x1b[2m(${production ? 'prod' : 'dev'})\x1b[0m built in`;
+    console.time(timer);
+
+    await Promise.all([
+        build({
+            ...pyScriptConfig,
+            sourcemap: false,
+            minify: false,
+            outfile: 'build/pyscript.js',
+        }),
+        build({
+            ...pyScriptConfig,
+            sourcemap: true,
+            minify: true,
+            outfile: 'build/pyscript.min.js',
+        }),
+    ]);
+
+    const copy = [];
+    for (const { src, dest } of copy_targets) {
+        if (src.endsWith('/*')) {
+            copy.push(copyPath(src.slice(0, -2), dest, { recursive: true }));
+        } else {
+            copy.push(copyPath(src, dest + src.slice(src.lastIndexOf('/'))));
+        }
+    }
+    await Promise.all(copy);
+
+    console.timeEnd(timer);
+};
+
+esbuild().then(() => {
+    if (!production) {
+        (async function watchPath(path) {
+            for (const file of await readdir(path)) {
+                const whole = join(path, file);
+                if (/\.(js|ts|css|py)$/.test(file)) {
+                    watchFile(whole, async () => {
+                        await esbuild();
+                    });
+                } else if ((await lstat(whole)).isDirectory()) {
+                    watchPath(whole);
+                }
+            }
+        })('src');
+
+        const server = spawn('python', ['-m', 'http.server', '--directory', './examples', '8080'], {
+            stdio: 'inherit',
+            detached: false,
+        });
+
+        process.on('exit', () => {
+            server.kill();
+        });
+    }
+});