95 lines
2.5 KiB
JavaScript
95 lines
2.5 KiB
JavaScript
'use strict';
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const fs = require('node:fs');
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const path = require('node:path');
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function resolveElectronPackageRoot() {
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try {
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return path.dirname(require.resolve('electron/package.json'));
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} catch {
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return null;
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}
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}
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function readElectronPathHint(packageRoot) {
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const pathFile = path.join(packageRoot, 'path.txt');
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if (!fs.existsSync(pathFile)) return null;
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const hint = fs.readFileSync(pathFile, 'utf8').trim();
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return hint || null;
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}
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function platformBinaryCandidates(platform) {
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switch (platform) {
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case 'win32':
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return ['electron.exe'];
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case 'darwin':
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return ['Electron.app/Contents/MacOS/Electron'];
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case 'linux':
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case 'freebsd':
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case 'openbsd':
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return ['electron'];
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default:
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return ['electron'];
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}
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}
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function buildMissingElectronError({ packageRoot, distDir, candidatePaths }) {
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const tried = candidatePaths.map((candidate) => ` - ${candidate}`).join('\n');
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return [
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'Electron could not be started because the desktop runtime is missing.',
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'',
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`Looked under: ${packageRoot}`,
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`Expected the binary in: ${distDir}`,
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'',
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'Try reinstalling dependencies from the repo root:',
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'',
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' npm install',
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'',
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'If that does not help, delete node_modules/electron and install again.',
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'',
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'Searched:',
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tried,
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].join('\n');
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}
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function resolveElectronBinary({
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packageRoot = resolveElectronPackageRoot(),
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platform = process.platform,
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overrideDistPath = process.env.ELECTRON_OVERRIDE_DIST_PATH || null,
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} = {}) {
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if (!packageRoot && !overrideDistPath) {
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throw new Error(
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'Electron could not be started because node_modules/electron is not installed.\n\n' +
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'Run `npm install` from the repo root, then try `npm start` again.'
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);
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}
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const distDir = overrideDistPath || path.join(packageRoot, 'dist');
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const candidatePaths = [];
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const pathHint = packageRoot ? readElectronPathHint(packageRoot) : null;
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if (pathHint) {
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candidatePaths.push(path.join(distDir, pathHint));
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}
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for (const relativePath of platformBinaryCandidates(platform)) {
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candidatePaths.push(path.join(distDir, relativePath));
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}
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const resolved = candidatePaths.find((candidate) => fs.existsSync(candidate));
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if (!resolved) {
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throw new Error(buildMissingElectronError({ packageRoot, distDir, candidatePaths }));
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}
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return resolved;
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}
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module.exports = {
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buildMissingElectronError,
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readElectronPathHint,
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resolveElectronBinary,
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resolveElectronPackageRoot,
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platformBinaryCandidates,
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};
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