102 lines
3.0 KiB
TypeScript
102 lines
3.0 KiB
TypeScript
import fs from "node:fs/promises";
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import os from "node:os";
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import path from "node:path";
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type EnvValue = string | undefined | ((home: string) => string | undefined);
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type EnvSnapshot = {
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home: string | undefined;
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userProfile: string | undefined;
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homeDrive: string | undefined;
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homePath: string | undefined;
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stateDir: string | undefined;
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};
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function snapshotEnv(): EnvSnapshot {
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return {
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home: process.env.HOME,
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userProfile: process.env.USERPROFILE,
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homeDrive: process.env.HOMEDRIVE,
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homePath: process.env.HOMEPATH,
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stateDir: process.env.CLAWDBOT_STATE_DIR,
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};
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}
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function restoreEnv(snapshot: EnvSnapshot) {
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const restoreKey = (key: string, value: string | undefined) => {
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if (value === undefined) delete process.env[key];
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else process.env[key] = value;
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};
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restoreKey("HOME", snapshot.home);
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restoreKey("USERPROFILE", snapshot.userProfile);
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restoreKey("HOMEDRIVE", snapshot.homeDrive);
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restoreKey("HOMEPATH", snapshot.homePath);
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restoreKey("CLAWDBOT_STATE_DIR", snapshot.stateDir);
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}
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function snapshotExtraEnv(keys: string[]): Record<string, string | undefined> {
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const snapshot: Record<string, string | undefined> = {};
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for (const key of keys) snapshot[key] = process.env[key];
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return snapshot;
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}
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function restoreExtraEnv(snapshot: Record<string, string | undefined>) {
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for (const [key, value] of Object.entries(snapshot)) {
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if (value === undefined) delete process.env[key];
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else process.env[key] = value;
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}
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}
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function setTempHome(base: string) {
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process.env.HOME = base;
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process.env.USERPROFILE = base;
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process.env.CLAWDBOT_STATE_DIR = path.join(base, ".clawdbot");
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if (process.platform !== "win32") return;
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const match = base.match(/^([A-Za-z]:)(.*)$/);
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if (!match) return;
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process.env.HOMEDRIVE = match[1];
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process.env.HOMEPATH = match[2] || "\\";
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}
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export async function withTempHome<T>(
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fn: (home: string) => Promise<T>,
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opts: { env?: Record<string, EnvValue>; prefix?: string } = {},
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): Promise<T> {
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const base = await fs.mkdtemp(path.join(os.tmpdir(), opts.prefix ?? "clawdbot-test-home-"));
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const snapshot = snapshotEnv();
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const envKeys = Object.keys(opts.env ?? {});
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for (const key of envKeys) {
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if (key === "HOME" || key === "USERPROFILE" || key === "HOMEDRIVE" || key === "HOMEPATH") {
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throw new Error(`withTempHome: use built-in home env (got ${key})`);
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}
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}
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const envSnapshot = snapshotExtraEnv(envKeys);
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setTempHome(base);
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if (opts.env) {
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for (const [key, raw] of Object.entries(opts.env)) {
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const value = typeof raw === "function" ? raw(base) : raw;
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if (value === undefined) delete process.env[key];
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else process.env[key] = value;
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}
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}
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try {
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return await fn(base);
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} finally {
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restoreExtraEnv(envSnapshot);
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restoreEnv(snapshot);
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try {
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await fs.rm(base, {
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recursive: true,
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force: true,
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maxRetries: 10,
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retryDelay: 50,
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});
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} catch {
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// ignore cleanup failures in tests
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}
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}
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}
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