import os from 'os';
import path from 'path';
import fs from 'fs';
// get platform specific cache directory adapted from playwright's handling
// https://github.com/microsoft/playwright/blob/7d924470d397975a74a19184c136b3573a974e13/packages/playwright-core/src/utils/registry.ts#L141
export function getCacheDirectory(fileDirectory, envPath) {
    let result;
    if (envPath) {
        result = envPath;
    } else {
        let systemCacheDirectory;
        if (process.platform === 'linux') {
            systemCacheDirectory = process.env.XDG_CACHE_HOME || path.join(os.homedir(), '.cache');
        } else if (process.platform === 'darwin') {
            systemCacheDirectory = path.join(os.homedir(), 'Library', 'Caches');
        } else if (process.platform === 'win32') {
            systemCacheDirectory = process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local');
        } else {
            /// Attempt to use generic tmp location for un-handled platform
            if (!systemCacheDirectory) {
                for (const dir of [
                    path.join(os.homedir(), '.cache'),
                    path.join(os.tmpdir())
                ]){
                    if (fs.existsSync(dir)) {
                        systemCacheDirectory = dir;
                        break;
                    }
                }
            }
            if (!systemCacheDirectory) {
                console.error(Object.defineProperty(new Error('Unsupported platform: ' + process.platform), "__NEXT_ERROR_CODE", {
                    value: "E141",
                    enumerable: false,
                    configurable: true
                }));
                process.exit(0);
            }
        }
        result = path.join(systemCacheDirectory, fileDirectory);
    }
    if (!path.isAbsolute(result)) {
        // It is important to resolve to the absolute path:
        //   - for unzipping to work correctly;
        //   - so that registry directory matches between installation and execution.
        // INIT_CWD points to the root of `npm/yarn install` and is probably what
        // the user meant when typing the relative path.
        result = path.resolve(process.env['INIT_CWD'] || process.cwd(), result);
    }
    return result;
}

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