chore: add getEnv helper

src/gptscript.ts

@@ -2,6 +2,7 @@ import http from "http"
 import path from "path"
 import child_process from "child_process"
 import {fileURLToPath} from "url"
+import {gunzipSync} from "zlib";
 
 export interface GlobalOpts {
     APIKey?: string
@@ -809,6 +810,22 @@ export interface PromptResponse {
     responses: Record<string, string>
 }
 
+export function getEnv(key: string, def: string = ''): string {
+    let v = process.env[key] || ''
+    if (v == '') {
+        return def
+    }
+
+    if (v.startsWith('{"_gz":"') && v.endsWith('"}')) {
+        try {
+            return gunzipSync(Buffer.from(v.slice(8, -2), 'base64')).toString('utf8')
+        } catch (e) {
+        }
+    }
+
+    return v
+}
+
 function getCmdPath(): string {
     if (process.env.GPTSCRIPT_BIN) {
         return process.env.GPTSCRIPT_BIN

tests/gptscript.test.ts

@@ -1,5 +1,5 @@
 import * as gptscript from "../src/gptscript"
-import {ArgumentSchemaType, PropertyType, RunEventType, ToolType} from "../src/gptscript"
+import {ArgumentSchemaType, getEnv, PropertyType, RunEventType, ToolType} from "../src/gptscript"
 import path from "path"
 import {fileURLToPath} from "url"
 
@@ -535,4 +535,15 @@ describe("gptscript module", () => {
 
         expect(run.err).toEqual("")
     })
+
+    test("test get_env default", async () => {
+        const env = getEnv('TEST_ENV_MISSING', 'foo')
+        expect(env).toEqual('foo')
+    })
+
+    test("test get_env", async () => {
+        process.env.TEST_ENV = '{"_gz":"H4sIAEosrGYC/ytJLS5RKEvMKU0FACtB3ewKAAAA"}'
+        const env = getEnv('TEST_ENV', 'missing')
+        expect(env).toEqual('test value')
+    })
 })