2026-01-01 21:05:54 +00:00

87 lines
2.3 KiB
TypeScript

/*
* Copyright (C) 2026 Fluxer Contributors
*
* This file is part of Fluxer.
*
* Fluxer is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Fluxer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
*/
import * as fs from 'node:fs';
import * as path from 'node:path';
async function fileExists(filePath: string): Promise<boolean> {
try {
await fs.promises.access(filePath);
return true;
} catch {
return false;
}
}
async function traverseDir(dir: string, callback: (filePath: string) => Promise<void>): Promise<void> {
const entries = await fs.promises.readdir(dir, {withFileTypes: true});
await Promise.all(
entries.map(async (entry) => {
const entryPath = path.join(dir, entry.name);
if (entry.isDirectory()) {
await traverseDir(entryPath, callback);
return;
}
await callback(entryPath);
}),
);
}
export async function cleanEmptySourceMaps(dir: string): Promise<void> {
if (!(await fileExists(dir))) {
return;
}
await traverseDir(dir, async (filePath) => {
if (!filePath.endsWith('.js.map')) {
return;
}
let parsed: unknown;
try {
const raw = await fs.promises.readFile(filePath, 'utf-8');
parsed = JSON.parse(raw);
} catch {
return;
}
if (typeof parsed !== 'object' || parsed === null) {
return;
}
const sources = (parsed as {sources?: Array<unknown>}).sources ?? [];
if (Array.isArray(sources) && sources.length > 0) {
return;
}
await fs.promises.rm(filePath, {force: true});
const jsPath = filePath.slice(0, -4);
if (!(await fileExists(jsPath))) {
return;
}
const jsContent = await fs.promises.readFile(jsPath, 'utf-8');
const cleaned = jsContent.replace(/(?:\r?\n)?\/\/# sourceMappingURL=.*$/, '');
if (cleaned !== jsContent) {
await fs.promises.writeFile(jsPath, cleaned);
}
});
}