Fix up the localhost stress tests so that you don’t have to cut and p…

…aste ids (#683)

It was hard before, now it’s easy.


just call 
./packages/stress/scripts/localhost_chat_setup.sh
./packages/stress/scripts/localhost_chat.sh

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Enhanced script functionality by sourcing environment variables from a
new configuration file for local chat settings.
- Introduced persistent storage of environment variables to improve
configuration management.

- **Chores**
- Updated the repository's `.gitignore` to prevent tracking of
environment files, improving repository cleanliness and security.

- **Improvements**
- Improved logging clarity by structuring the output of environment
variables in a more readable format.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.gitignore

@@ -71,3 +71,4 @@ bin/gen-bindings-remove-struct
 go.work.sum
 
 /packages/stress-testing/.env
+/packages/stress/*/.env*

packages/stress/scripts/localhost_chat.sh

@@ -3,6 +3,9 @@ set -euo pipefail
 cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")"
 cd ..
 
+# run scripts/localhost_chat_setup.sh to set up the environment variables
+source scripts/.env.localhost_chat
+
 echo "stress/scripts/localhost_chat.sh"
 
 #

packages/stress/src/mode/chat/root_chat.ts

@@ -1,4 +1,5 @@
 import { check, dlogger } from '@river-build/dlog'
+import { promises as fs } from 'node:fs'
 import { isSet } from '../../utils/expect'
 import { ChatConfig } from './types'
 import { RiverConfig, makeDefaultChannelStreamId } from '@river-build/sdk'
@@ -193,11 +194,13 @@ export async function setupChat(opts: {
         channelIds.push(await client.createChannel(spaceId, `stress${i}`))
     }
     // log all the deets
-    logger.log(
-        `SPACE_ID=${spaceId} ANNOUNCE_CHANNEL_ID=${announceChannelId} CHANNEL_IDS=${channelIds.join(
-            ',',
-        )}`,
-    )
+    const envVars = [
+        `SPACE_ID=${spaceId}`,
+        `ANNOUNCE_CHANNEL_ID=${announceChannelId}`,
+        `CHANNEL_IDS=${channelIds.join(',')}`,
+    ]
+    logger.log(envVars.join('\n'))
+    await fs.writeFile('scripts/.env.localhost_chat', envVars.join('\n'))
     logger.log('join at', `http://localhost:3000/t/${spaceId}/?invite`)
     logger.log('or', `http://localhost:3001/spaces/${spaceId}/?invite`)
     logger.log('done')