Use Tsx/node implementation for file/terminal_io in Bun runtime

src/bun/file_io.ts

@@ -1,18 +0,0 @@
-import { IFileIO } from '../common/runtime.ts';
-import { appendFile } from 'node:fs/promises';
-
-const BunFileIO: IFileIO = {
-	openFile: async (path: string): Promise<string> => {
-		const file = await Bun.file(path);
-		return await file.text();
-	},
-	appendFile: async function (path: string, contents: string): Promise<void> {
-		return await appendFile(path, contents);
-	},
-	saveFile: async function (path: string, contents: string): Promise<void> {
-		await Bun.write(path, contents);
-		return;
-	},
-};
-
-export default BunFileIO;

src/bun/mod.ts

@@ -3,8 +3,8 @@
  */
 
 import { IRuntime, RunTimeType } from '../common/runtime.ts';
-import BunTerminalIO from './terminal_io.ts';
-import BunFileIO from './file_io.ts';
+import TerminalIO from '../tsx/terminal_io.ts';
+import FileIO from '../tsx/file_io.ts';
 
 import process from 'node:process';
 
@@ -13,8 +13,8 @@ import process from 'node:process';
  */
 const BunRuntime: IRuntime = {
 	name: RunTimeType.Bun,
-	file: BunFileIO,
-	term: BunTerminalIO,
+	file: FileIO,
+	term: TerminalIO,
 	onEvent: (eventName: string, handler) => process.on(eventName, handler),
 	onExit: (cb: () => void): void => {
 		process.on('beforeExit', cb);

src/bun/terminal_io.ts

@@ -1,85 +0,0 @@
-/**
- * Wrap the runtime-specific hook into stdin
- */
-import process from 'node:process';
-import Ansi from '../common/ansi.ts';
-import { defaultTerminalSize } from '../common/config.ts';
-import { readKey } from '../common/fns.ts';
-import { ITerminal, ITerminalSize } from '../common/types.ts';
-
-const encoder = new TextEncoder();
-
-async function _getTerminalSizeFromAnsi(): Promise<ITerminalSize> {
-	// Tell the cursor to move to Row 999 and Column 999
-	// Since this command specifically doesn't go off the screen
-	// When we ask where the cursor is, we should get the size of the screen
-	await BunTerminalIO.writeStdout(
-		Ansi.moveCursorForward(999) + Ansi.moveCursorDown(999),
-	);
-
-	// Ask where the cursor is
-	await BunTerminalIO.writeStdout(Ansi.GetCursorLocation);
-
-	// Get the first chunk from stdin
-	// The response is \x1b[(rows);(cols)R..
-	const chunk = await BunTerminalIO.readStdinRaw();
-	if (chunk === null) {
-		return defaultTerminalSize;
-	}
-
-	const rawCode = (new TextDecoder()).decode(chunk);
-	const res = rawCode.trim().replace(/^.\[([0-9]+;[0-9]+)R$/, '$1');
-	const [srows, scols] = res.split(';');
-	const rows = parseInt(srows, 10) ?? 24;
-	const cols = parseInt(scols, 10) ?? 80;
-
-	// Clear the screen
-	await BunTerminalIO.writeStdout(Ansi.ClearScreen + Ansi.ResetCursor);
-
-	return {
-		rows,
-		cols,
-	};
-}
-
-const BunTerminalIO: ITerminal = {
-	// Deno only returns arguments passed to the script, so
-	// remove the bun runtime executable, and entry script arguments
-	// to have consistent argument lists
-	argv: (Bun.argv.length > 2) ? Bun.argv.slice(2) : [],
-	inputLoop: async function* inputLoop() {
-		yield (await BunTerminalIO.readStdinRaw()) ?? new Uint8Array(0);
-
-		return null;
-	},
-	/**
-	 * Get the size of the terminal window via ANSI codes
-	 * @see https://viewsourcecode.org/snaptoken/kilo/03.rawInputAndOutput.html#window-size-the-hard-way
-	 */
-	getTerminalSize: function getTerminalSize(): Promise<ITerminalSize> {
-		const [cols, rows] = process.stdout.getWindowSize();
-
-		return Promise.resolve({
-			rows,
-			cols,
-		});
-	},
-	readStdin: async function (): Promise<string | null> {
-		const raw = await BunTerminalIO.readStdinRaw();
-		return readKey(raw ?? new Uint8Array(0));
-	},
-	readStdinRaw: function (): Promise<Uint8Array | null> {
-		return new Promise((resolve) => {
-			process.stdin.resume().once('data', (buffer: Uint8Array) => {
-				resolve(buffer);
-			});
-		});
-	},
-	writeStdout: async function write(s: string): Promise<void> {
-		const buffer = encoder.encode(s);
-
-		await Bun.write(Bun.stdout, buffer);
-	},
-};
-
-export default BunTerminalIO;

src/common/runtime.ts

@@ -35,6 +35,45 @@ let scrollRuntime: IRuntime | null = null;
 // Misc runtime functions
 // ----------------------------------------------------------------------------
 
+/**
+ * Get the size of the terminal window via ANSI codes
+ * @see https://viewsourcecode.org/snaptoken/kilo/03.rawInputAndOutput.html#window-size-the-hard-way
+ */
+async function _getTerminalSizeFromAnsi(): Promise<ITerminalSize> {
+	const { term } = await getRuntime();
+
+	// Tell the cursor to move to Row 999 and Column 999
+	// Since this command specifically doesn't go off the screen
+	// When we ask where the cursor is, we should get the size of the screen
+	await term.writeStdout(
+		Ansi.moveCursorForward(999) + Ansi.moveCursorDown(999),
+	);
+
+	// Ask where the cursor is
+	await term.writeStdout(Ansi.GetCursorLocation);
+
+	// Get the first chunk from stdin
+	// The response is \x1b[(rows);(cols)R..
+	const chunk = await term.readStdinRaw();
+	if (chunk === null) {
+		return defaultTerminalSize;
+	}
+
+	const rawCode = (new TextDecoder()).decode(chunk);
+	const res = rawCode.trim().replace(/^.\[([0-9]+;[0-9]+)R$/, '$1');
+	const [srows, scols] = res.split(';');
+	const rows = parseInt(srows, 10) ?? 24;
+	const cols = parseInt(scols, 10) ?? 80;
+
+	// Clear the screen
+	await term.writeStdout(Ansi.ClearScreen + Ansi.ResetCursor);
+
+	return {
+		rows,
+		cols,
+	};
+}
+
 export function log(s: unknown, level: LogLevel = LogLevel.Notice): void {
 	getRuntime().then(({ file }) => {
 		const raw = JSON.stringify(s, null, 2);

src/tsx/test_base.ts

@@ -1,13 +1,12 @@
+// @ts-nocheck: Bun is used for typescript checks, bun does not have 'node:assert' or 'node:test'
 /**
  * Adapt the node test interface to the shared testing interface
  */
-// @ts-ignore: Only in newer versions of node
 import {
 	deepStrictEqual,
 	notStrictEqual,
 	strictEqual,
 } from 'node:assert/strict';
-// @ts-ignore: Only in newer versions of node
 import { describe, it } from 'node:test';
 import { ITestBase } from '../common/types.ts';