feat(S-203): Test-drive and implement src/config.ts

2026-05-18 17:51:44 -05:00
parent 8340933f8a
commit f3458734d4
2 changed files with 203 additions and 0 deletions
@@ -0,0 +1,92 @@
+import { homedir } from "node:os";
+import {
+  readFileSync as realReadFileSync,
+  existsSync as realExistsSync,
+} from "node:fs";
+import { spawnSync } from "node:child_process";
+import type { ClientName } from "./types.js";
+
+const CLIENT_NAMES: ClientName[] = ["codex", "claude", "opencode"];
+
+export interface ResolvedConfig {
+  paths: Partial<Record<ClientName, string>>;
+  defaultClient?: ClientName;
+}
+
+export interface ResolveConfigOptions {
+  flags?: Record<string, string | boolean | undefined>;
+  env?: NodeJS.ProcessEnv;
+  homeDir?: string;
+  readFileSync?: (path: string, encoding: BufferEncoding) => string;
+  existsSync?: (path: string) => boolean;
+  whichSync?: (cmd: string) => string | undefined;
+}
+
+function defaultWhichSync(cmd: string): string | undefined {
+  const isWin = process.platform === "win32";
+  const result = spawnSync(isWin ? "where" : "which", [cmd], {
+    encoding: "utf-8",
+  });
+  if (result.status === 0) {
+    return result.stdout.trim().split("\n")[0];
+  }
+  return undefined;
+}
+
+export function resolveConfig(
+  options: ResolveConfigOptions = {}
+): ResolvedConfig {
+  const {
+    flags = {},
+    env = process.env,
+    homeDir = homedir(),
+    readFileSync = realReadFileSync,
+    existsSync = realExistsSync,
+    whichSync = defaultWhichSync,
+  } = options;
+
+  const configPath = `${homeDir}/.openclaw/ai-cli-dispatch.json`;
+
+  let fileConfig: Record<string, unknown> = {};
+  if (existsSync(configPath)) {
+    try {
+      fileConfig = JSON.parse(readFileSync(configPath, "utf-8"));
+    } catch {
+      fileConfig = {};
+    }
+  }
+
+  const filePaths = (fileConfig.paths ?? {}) as Partial<
+    Record<ClientName, string>
+  >;
+  const fileDefault = fileConfig.defaultClient as ClientName | undefined;
+
+  const paths: Partial<Record<ClientName, string>> = {};
+  for (const name of CLIENT_NAMES) {
+    const flagKey = `${name}-path`;
+    const envKey = `AI_CLI_${name.toUpperCase()}_PATH`;
+    const resolved =
+      (typeof flags[flagKey] === "string"
+        ? (flags[flagKey] as string)
+        : undefined) ??
+      env[envKey] ??
+      filePaths[name] ??
+      whichSync(name);
+    if (resolved !== undefined) {
+      paths[name] = resolved;
+    }
+  }
+
+  const defaultClient =
+    (typeof flags["default-client"] === "string"
+      ? (flags["default-client"] as string)
+      : undefined) ??
+    env.AI_CLI_DEFAULT_CLIENT ??
+    fileDefault;
+
+  const result: ResolvedConfig = { paths };
+  if (defaultClient !== undefined) {
+    result.defaultClient = defaultClient as ClientName;
+  }
+  return result;
+}