import { existsSync } from "fs";
import { platform } from "os";
export class ChromeNotFoundError extends Error {
constructor(message: string) {
super(message);
this.name = "ChromeNotFoundError";
}
}
function getDefaultChromePaths(): string[] {
const plat = platform();
if (plat === "win32") {
return [
process.env.LOCALAPPDATA + "\\Google\\Chrome\\Application\\chrome.exe",
process.env.PROGRAMFILES + "\\Google\\Chrome\\Application\\chrome.exe",
process.env["PROGRAMFILES(X86)"] + "\\Google\\Chrome\\Application\\chrome.exe",
process.env.LOCALAPPDATA + "\\Chromium\\Application\\chrome.exe",
process.env.PROGRAMFILES + "\\Chromium\\Application\\chrome.exe",
process.env["PROGRAMFILES(X86)"] + "\\Chromium\\Application\\chrome.exe"
].filter(Boolean);
}
if (plat === "darwin") {
return [
"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
"/Applications/Chromium.app/Contents/MacOS/Chromium",
process.env.HOME + "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
process.env.HOME + "/Applications/Chromium.app/Contents/MacOS/Chromium"
].filter(Boolean);
}
return [
"/usr/bin/google-chrome",
"/usr/bin/google-chrome-stable",
"/usr/bin/chromium",
"/usr/bin/chromium-browser",
"/snap/bin/chromium",
"/usr/local/bin/chrome",
"/usr/local/bin/chromium"
];
}
export function findChrome(): string {
if (process.env.CHROME_PATH) {
if (existsSync(process.env.CHROME_PATH)) {
return process.env.CHROME_PATH;
}
throw new ChromeNotFoundError(`Chrome not found at CHROME_PATH: ${process.env.CHROME_PATH}`);
}
const paths = getDefaultChromePaths();
for (const path of paths) {
if (existsSync(path)) {
return path;
}
}
const plat = platform();
let installInstructions = "";
if (plat === "win32") {
installInstructions = "Download from: https://www.google.com/chrome/";
} else if (plat === "darwin") {
installInstructions =
"Install via: brew install --cask google-chrome\nOr download from: https://www.google.com/chrome/";
} else {
installInstructions =
"Install via:\n Ubuntu/Debian: sudo apt install chromium-browser\n Fedora: sudo dnf install chromium\n Arch: sudo pacman -S chromium\nOr download from: https://www.google.com/chrome/";
}
throw new ChromeNotFoundError(
`Chrome/Chromium not found on system.\n\n${installInstructions}\n\nAlternatively, set CHROME_PATH environment variable to your Chrome executable.`
);
}
