fix splitting

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "sapper",
-  "version": "0.19.0",
+  "version": "0.19.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -10,6 +10,15 @@
       "integrity": "sha1-MU+BaPUK5IoDLP2tX9tDb0ZKl6w=",
       "dev": true
     },
+    "@types/blessed": {
+      "version": "0.1.10",
+      "resolved": "https://registry.npmjs.org/@types/blessed/-/blessed-0.1.10.tgz",
+      "integrity": "sha512-lCpkGnCq2lj9RBPwh/RH/ZJegYV6JdyyRHmURIW1DwMdtNhRRxYeHllqaMu8K6bDf6zhO7PpHsmEqlYMDPlmhw==",
+      "requires": {
+        "@types/events": "*",
+        "@types/node": "*"
+      }
+    },
     "@types/estree": {
       "version": "0.0.39",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
@@ -19,8 +28,7 @@
     "@types/events": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@types/events/-/events-1.2.0.tgz",
-      "integrity": "sha512-KEIlhXnIutzKwRbQkGWb/I4HFqBuUykAdHgDED6xqwXJfONCjF5VoE0cXEiurh3XauygxzeDzgtXUqvLkxFzzA==",
-      "dev": true
+      "integrity": "sha512-KEIlhXnIutzKwRbQkGWb/I4HFqBuUykAdHgDED6xqwXJfONCjF5VoE0cXEiurh3XauygxzeDzgtXUqvLkxFzzA=="
     },
     "@types/glob": {
       "version": "5.0.35",
@@ -57,8 +65,7 @@
     "@types/node": {
       "version": "10.9.4",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-10.9.4.tgz",
-      "integrity": "sha512-fCHV45gS+m3hH17zgkgADUSi2RR1Vht6wOZ0jyHP8rjiQra9f+mIcgwPQHllmDocYOstIEbKlxbFDYlgrTPYqw==",
-      "dev": true
+      "integrity": "sha512-fCHV45gS+m3hH17zgkgADUSi2RR1Vht6wOZ0jyHP8rjiQra9f+mIcgwPQHllmDocYOstIEbKlxbFDYlgrTPYqw=="
     },
     "@types/rimraf": {
       "version": "2.0.2",
@@ -1010,6 +1017,11 @@
       "integrity": "sha1-RqoXUftqL5PuXmibsQh9SxTGwgU=",
       "dev": true
     },
+    "blessed": {
+      "version": "0.1.81",
+      "resolved": "https://registry.npmjs.org/blessed/-/blessed-0.1.81.tgz",
+      "integrity": "sha1-+WLWh+wsNpVwrnGvhDJW5tDKESk="
+    },
     "bluebird": {
       "version": "3.5.1",
       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.1.tgz",

package.json

@@ -19,6 +19,8 @@
     "test": "test"
   },
   "dependencies": {
+    "@types/blessed": "^0.1.10",
+    "blessed": "^0.1.81",
     "html-minifier": "^3.5.16",
     "shimport": "^0.0.10",
     "source-map-support": "^0.5.6",

src/api/dev.ts

@@ -200,6 +200,8 @@ class Watcher extends EventEmitter {
 			handle_result: (result: CompileResult) => {
 				deferred.promise.then(() => {
 					const restart = () => {
+						this.emit('restart');
+
 						log = '';
 						this.crashed = false;
 

src/cli.ts

@@ -15,13 +15,15 @@ prog.command('dev')
 	.option('--hot', 'Use hot module replacement (requires webpack)', true)
 	.option('--live', 'Reload on changes if not using --hot', true)
 	.option('--bundler', 'Specify a bundler (rollup or webpack)')
+	.option('--stream', 'Stream logs, instead of boxing them', false)
 	.action(async (opts: {
 		port: number,
 		open: boolean,
 		'dev-port': number,
 		live: boolean,
 		hot: boolean,
-		bundler?: string
+		bundler?: string,
+		stream: boolean
 	}) => {
 		const { dev } = await import('./cli/dev');
 		dev(opts);

src/cli/dev.ts

@@ -1,80 +1,263 @@
 import * as path from 'path';
 import colors from 'kleur';
 import * as child_process from 'child_process';
+import * as blessed from 'blessed';
 import prettyMs from 'pretty-ms';
 import { dev as _dev } from '../api/dev';
 import * as events from '../api/interfaces';
 
-export function dev(opts: { port: number, open: boolean, bundler?: string }) {
+function boxed_output() {
+	const screen = blessed.screen({
+		smartCSR: true
+	});
+
+	function box(opts) {
+		opts = Object.assign({
+			width: '100%',
+			height: '50%',
+			scrollable: true,
+			style: {
+				scrollbar: {
+					bg: 'black'
+				}
+			},
+			scrollbar: {},
+			input: true,
+			mouse: true,
+			keys: true,
+			scrollOnInput: false
+		}, opts);
+
+		return blessed.box(opts);
+	}
+
+	const status_box = box({});
+	const log_box = box({
+		bottom: '0'
+	});
+
+	let mouse_is_down = false;
+	let dragging = false;
+	let did_drag = false;
+
+	let divider_is_horizontal = true;
+
+	function update_split(x: number, y: number) {
+		if (divider_is_horizontal) {
+			horizontal_divider.top = y;
+			status_box.width = log_box.width = '100%';
+			status_box.height = y;
+			log_box.height = screen.height - (y + 1);
+			log_box.top = y + 1;
+			log_box.left = 0;
+		} else {
+			vertical_divider.left = x;
+			status_box.height = log_box.height = '100%';
+			status_box.width = x;
+			log_box.width = screen.width - (x + 1);
+			log_box.left = x + 1;
+			log_box.top = 0;
+		}
+
+		screen.render();
+	}
+
+	screen.on('mousedown', data => {
+		if (mouse_is_down) {
+			if (dragging) {
+				update_split(data.x, data.y);
+				did_drag = true;
+			}
+		} else {
+			if (data.y === horizontal_divider.top) {
+				dragging = true;
+			}
+
+			mouse_is_down = true;
+		}
+	});
+
+	screen.on('mouseup', data => {
+		mouse_is_down = false;
+		dragging = false;
+		did_drag = false;
+	});
+
+	const horizontal_divider = blessed.line({
+		top: '50%',
+		orientation: 'horizontal'
+	});
+
+	const vertical_divider = blessed.line({
+		left: '50%',
+		orientation: 'vertical'
+	});
+
+	horizontal_divider.on('click', event => {
+		if (!did_drag) {
+			horizontal_divider.hide();
+			vertical_divider.show();
+			divider_is_horizontal = false;
+			update_split(event.x, event.y);
+		}
+	});
+
+	vertical_divider.on('click', event => {
+		if (!did_drag) {
+			vertical_divider.hide();
+			horizontal_divider.show();
+			divider_is_horizontal = true;
+			update_split(event.x, event.y);
+		}
+	});
+
+	vertical_divider.hide();
+
+	screen.append(status_box);
+	screen.append(log_box);
+	screen.append(horizontal_divider);
+	screen.append(vertical_divider);
+
+	update_split(process.stdout.columns >> 1, process.stdout.rows >> 1);
+
+	screen.key(['escape', 'q', 'C-c'], function(ch, key) {
+		return process.exit(0);
+	});
+
+	const append_log = (data: Buffer | string) => {
+		log_box.setContent(log_box.content + data);
+		screen.render();
+	};
+
+	const append_status = (data: Buffer | string) => {
+		status_box.setContent(status_box.content + data);
+		screen.render();
+	};
+
+	let first = true;
+
+	return {
+		stdout: append_log,
+
+		stderr: append_log,
+
+		clear_logs: () => {
+			let content = `${colors.inverse(` server log • ${new Date().toISOString()}\n`)} \n`;
+			if (first) {
+				content += colors.gray(`> Click/drag the divider to adjust the split\n\n`);
+				first = false;
+			}
+
+			log_box.setContent(content);
+			screen.render();
+		},
+
+		log: (line: string) => {
+			append_status(line + '\n');
+		},
+
+		append: append_status,
+
+		clear: () => {
+			status_box.setContent(`${colors.inverse(` build log • ${new Date().toISOString()}\n`)} \n`);
+			screen.render();
+		}
+	};
+}
+
+function streamed_output() {
+	return {
+		stdout: process.stdout.write.bind(process.stdout),
+
+		stderr: process.stderr.write.bind(process.stderr),
+
+		clear_logs: () => {},
+
+		log: (line: string) => {
+			console.log(line);
+		},
+
+		append: (data: Buffer | string) => {
+			process.stdout.write(data);
+		},
+
+		clear: () => {}
+	};
+}
+
+export function dev(opts: { port: number, open: boolean, bundler?: string, stream: boolean }) {
+	const output = opts.stream
+		? streamed_output()
+		: boxed_output();
+
+	output.clear();
+
 	try {
 		const watcher = _dev(opts);
 
 		let first = true;
 
 		watcher.on('ready', (event: events.ReadyEvent) => {
+			output.log(colors.bold.cyan(`> Listening on http://localhost:${event.port}`));
+
 			if (first) {
-				console.log(colors.bold.cyan(`> Listening on http://localhost:${event.port}`));
 				if (opts.open) child_process.exec(`open http://localhost:${event.port}`);
 				first = false;
 			}
-
-			// TODO clear screen?
-
-			event.process.stdout.on('data', data => {
-				process.stdout.write(data);
-			});
-
-			event.process.stderr.on('data', data => {
-				process.stderr.write(data);
-			});
 		});
 
+		watcher.on('restart', output.clear_logs);
+		watcher.on('stdout', output.stdout);
+		watcher.on('stderr', output.stderr);
+
 		watcher.on('invalid', (event: events.InvalidEvent) => {
 			const changed = event.changed.map(filename => path.relative(process.cwd(), filename)).join(', ');
-			console.log(`\n${colors.bold.cyan(changed)} changed. rebuilding...`);
+
+			output.clear();
+			output.log(`${colors.bold.cyan(changed)} changed. rebuilding...`);
 		});
 
 		watcher.on('error', (event: events.ErrorEvent) => {
-			console.log(colors.red(`✗ ${event.type}`));
-			console.log(colors.red(event.message));
+			output.log(colors.red(`✗ ${event.type}`));
+			output.log(colors.red(event.message));
 		});
 
 		watcher.on('fatal', (event: events.FatalEvent) => {
-			console.log(colors.bold.red(`> ${event.message}`));
-			if (event.log) console.log(event.log);
+			output.log(colors.bold.red(`> ${event.message}`));
+			if (event.log) output.log(event.log);
 		});
 
 		watcher.on('build', (event: events.BuildEvent) => {
 			if (event.errors.length) {
-				console.log(colors.bold.red(`✗ ${event.type}`));
+				output.log(colors.bold.red(`✗ ${event.type}`));
 
 				event.errors.filter(e => !e.duplicate).forEach(error => {
-					if (error.file) console.log(colors.bold(error.file));
-					console.log(error.message);
+					if (error.file) output.log(colors.bold(error.file));
+					output.log(error.message);
 				});
 
 				const hidden = event.errors.filter(e => e.duplicate).length;
 				if (hidden > 0) {
-					console.log(`${hidden} duplicate ${hidden === 1 ? 'error' : 'errors'} hidden\n`);
+					output.log(`${hidden} duplicate ${hidden === 1 ? 'error' : 'errors'} hidden\n`);
 				}
 			} else if (event.warnings.length) {
-				console.log(colors.bold.yellow(`• ${event.type}`));
+				output.log(colors.bold.yellow(`• ${event.type}`));
 
 				event.warnings.filter(e => !e.duplicate).forEach(warning => {
-					if (warning.file) console.log(colors.bold(warning.file));
-					console.log(warning.message);
+					if (warning.file) output.log(colors.bold(warning.file));
+					output.log(warning.message);
 				});
 
 				const hidden = event.warnings.filter(e => e.duplicate).length;
 				if (hidden > 0) {
-					console.log(`${hidden} duplicate ${hidden === 1 ? 'warning' : 'warnings'} hidden\n`);
+					output.log(`${hidden} duplicate ${hidden === 1 ? 'warning' : 'warnings'} hidden\n`);
 				}
 			} else {
-				console.log(`${colors.bold.green(`✔ ${event.type}`)} ${colors.gray(`(${prettyMs(event.duration)})`)}`);
+				output.log(`${colors.bold.green(`✔ ${event.type}`)} ${colors.gray(`(${prettyMs(event.duration)})`)}`);
 			}
 		});
 	} catch (err) {
-		console.log(colors.bold.red(`> ${err.message}`));
+		output.log(colors.bold.red(`> ${err.message}`));
 		process.exit(1);
 	}
 }