Remove the dependency on "execa"

package.json

@@ -16,7 +16,6 @@
 		"php_minifier": "./bin/php_minifier.cjs"
 	},
 	"dependencies": {
-		"execa": "^8.0.1",
 		"fancy-log": "^2.0.0",
 		"get-port": "^7.1.0",
 		"plugin-error": "^2.0.1",
@@ -31,6 +30,7 @@
 		"del": "^7.1.0",
 		"esbuild": "^0.20.2",
 		"eslint": "^8.57.0",
+		"execa": "^8.0.1",
 		"typedoc": "^0.25.12",
 		"typescript": "^5.4.3",
 		"typescript-eslint": "^7.3.1",

src/fast_transformer.ts

@@ -1,6 +1,6 @@
+import {type ChildProcess, spawn} from "node:child_process";
 import {join, normalize, resolve} from "node:path";
 import {fileURLToPath} from "node:url";
-import {execa, type ExecaChildProcess} from "execa";
 import getPort from "get-port";
 import type {Transformer} from "./transformer.js";
 
@@ -27,7 +27,7 @@ export class FastTransformer implements Transformer {
 	/**
 	 * The underlying PHP process.
 	 */
-	#process: ExecaChildProcess|null = null;
+	#process: ChildProcess|null = null;
 
 	/**
 	 * Creates a new fast transformer.
@@ -57,8 +57,8 @@ export class FastTransformer implements Transformer {
 		return new Promise((fulfill, reject) => {
 			const root = typeof module == "undefined" ? fileURLToPath(new URL("../www", import.meta.url)) : join(__dirname, "../www");
 			const args = ["-S", `${FastTransformer.#address}:${this.#port}`, "-t", root];
-			this.#process = execa(this.#executable, args, {stdio: ["ignore", "pipe", "ignore"]});
-			this.#process.on("error", reject); // eslint-disable-line @typescript-eslint/no-floating-promises
+			this.#process = spawn(this.#executable, args, {stdio: ["ignore", "pipe", "ignore"]});
+			this.#process.on("error", reject);
 			setTimeout(() => fulfill(this.#port), 1_000);
 		});
 	}

src/safe_transformer.ts

@@ -1,5 +1,5 @@
+import {execFile} from "node:child_process";
 import {normalize, resolve} from "node:path";
-import {execa} from "execa"
 import type {Transformer} from "./transformer.js";
 
 /**
@@ -33,6 +33,9 @@ export class SafeTransformer implements Transformer {
 	 * @returns The transformed script.
 	 */
 	async transform(file: string): Promise<string> {
-		return (await execa(this.#executable, ["-w", resolve(file)])).stdout;
+		return new Promise((fulfill, reject) => execFile(this.#executable, ["-w", resolve(file)], (error, stdout) => {
+			if (error) reject(error); // eslint-disable-line @typescript-eslint/prefer-promise-reject-errors
+			else fulfill(stdout);
+		}));
 	}
 }