corepack/sources/folderUtils.ts

55 lines
1.5 KiB
TypeScript

import {UsageError} from 'clipanion';
import {mkdirSync} from 'fs';
import {homedir, tmpdir} from 'os';
import {join} from 'path';
import process from 'process';
import type {NodeError} from './nodeUtils';
/**
* If the install folder structure changes then increment this number.
*/
const INSTALL_FOLDER_VERSION = 1;
export function getCorepackHomeFolder() {
return (
process.env.COREPACK_HOME ??
join(
process.env.XDG_CACHE_HOME ??
process.env.LOCALAPPDATA ??
join(homedir(), process.platform === `win32` ? `AppData/Local` : `.cache`),
`node/corepack`,
)
);
}
export function getInstallFolder() {
return join(
getCorepackHomeFolder(),
`v${INSTALL_FOLDER_VERSION}`,
);
}
export function getTemporaryFolder(target: string = tmpdir()) {
mkdirSync(target, {recursive: true});
while (true) {
const rnd = Math.random() * 0x100000000;
const hex = rnd.toString(16).padStart(8, `0`);
const path = join(target, `corepack-${process.pid}-${hex}`);
try {
mkdirSync(path);
return path;
} catch (error) {
if ((error as NodeError).code === `EEXIST`) {
continue;
} else if ((error as NodeError).code === `EACCES`) {
throw new UsageError(`Failed to create cache directory. Please ensure the user has write access to the target directory (${target}). If the user's home directory does not exist, create it first.`);
} else {
throw error;
}
}
}
}