From 20f0c045eb7e948bbbac096b2f04d239767027d9 Mon Sep 17 00:00:00 2001
From: Brian Warner <warner@lothar.com>
Date: Thu, 5 Aug 2021 21:08:16 -0700
Subject: [PATCH] feat(solo): accept $SOLO_SLOGFILE to write a slogfile

cosmic-swingset can be run with e.g. `SLOGFILE=chain.slog agoric start
local-chain` to make it write out a slogfile during execution.

This brings this same functionality to the solo node, e.g.
`SOLO_SLOGFILE=client.slog agoric start local-solo`.

Co-authored-by: Michael FIG <mfig@agoric.com>
---
 packages/solo/src/start.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/solo/src/start.js b/packages/solo/src/start.js
index 4ddc9e5a441..b06c45ce12b 100644
--- a/packages/solo/src/start.js
+++ b/packages/solo/src/start.js
@@ -150,9 +150,11 @@ async function buildSwingset(
     }
     await initializeSwingset(config, argv, hostStorage);
   }
+  const slogFile = process.env.SOLO_SLOGFILE;
   const controller = await makeSwingsetController(
     hostStorage,
     deviceEndowments,
+    { slogFile },
   );
 
   async function saveState() {