From 28d3efdab7f7f91e17ba49cdb57408988dc5c58e Mon Sep 17 00:00:00 2001
From: Michael FIG <mfig@agoric.com>
Date: Wed, 12 Jan 2022 13:48:30 -0600
Subject: [PATCH] feat(cosmic-swingset): use
 `bootMsg.params.bootstrap_vat_config`

---
 packages/cosmic-swingset/src/chain-main.js | 12 ++++++------
 packages/cosmic-swingset/src/sim-chain.js  | 14 ++++++++------
 packages/cosmic-swingset/src/sim-params.js |  3 +++
 3 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/packages/cosmic-swingset/src/chain-main.js b/packages/cosmic-swingset/src/chain-main.js
index 1d8ad261674..e2d9a54d528 100644
--- a/packages/cosmic-swingset/src/chain-main.js
+++ b/packages/cosmic-swingset/src/chain-main.js
@@ -236,17 +236,17 @@ export default async function main(progname, args, { env, homedir, agcc }) {
       }
     }
 
-    const vatconfig = new URL(
-      await importMetaResolve(
-        '@agoric/vats/decentral-config.json',
-        import.meta.url,
-      ),
-    ).pathname;
     const argv = {
       ROLE: 'chain',
       noFakeCurrencies: !env.FAKE_CURRENCIES,
       bootMsg,
     };
+    const vatconfig = new URL(
+      await importMetaResolve(
+        argv.bootMsg.params.bootstrap_vat_config,
+        import.meta.url,
+      ),
+    ).pathname;
     const meterProvider = getMeterProvider(console, env);
     const slogFile = env.SLOGFILE;
     const consensusMode = env.DEBUG === undefined;
diff --git a/packages/cosmic-swingset/src/sim-chain.js b/packages/cosmic-swingset/src/sim-chain.js
index c87987d3a40..c99641f2d01 100644
--- a/packages/cosmic-swingset/src/sim-chain.js
+++ b/packages/cosmic-swingset/src/sim-chain.js
@@ -53,12 +53,6 @@ export async function connectToFakeChain(basedir, GCI, delay, inbound) {
 
   const mailboxStorage = await makeMapStorage(mailboxFile);
 
-  const vatconfig = new URL(
-    await importMetaResolve(
-      '@agoric/vats/decentral-config.json',
-      import.meta.url,
-    ),
-  ).pathname;
   const argv = {
     ROLE: 'sim-chain',
     giveMeAllTheAgoricPowers: true,
@@ -69,8 +63,16 @@ export async function connectToFakeChain(basedir, GCI, delay, inbound) {
         { denom: 'ubld', amount: `${50_000n * 10n ** 6n}` },
         { denom: 'urun', amount: `${1_000_000n * 10n ** 6n}` },
       ],
+      params: DEFAULT_SIM_SWINGSET_PARAMS,
     },
   };
+
+  const vatconfig = new URL(
+    await importMetaResolve(
+      argv.bootMsg.params.bootstrap_vat_config,
+      import.meta.url,
+    ),
+  ).pathname;
   const stateDBdir = path.join(basedir, `fake-chain-${GCI}-state`);
   function flushChainSends(replay) {
     assert(!replay, X`Replay not implemented`);
diff --git a/packages/cosmic-swingset/src/sim-params.js b/packages/cosmic-swingset/src/sim-params.js
index eb16c0790d5..1f0522eb333 100644
--- a/packages/cosmic-swingset/src/sim-params.js
+++ b/packages/cosmic-swingset/src/sim-params.js
@@ -57,7 +57,10 @@ export const defaultFeeUnitPrice = [
   },
 ];
 
+export const defaultBootstrapVatConfig = '@agoric/vats/decentral-config.json';
+
 export const DEFAULT_SIM_SWINGSET_PARAMS = {
   beans_per_unit: defaultBeansPerUnit,
   fee_unit_price: defaultFeeUnitPrice,
+  bootstrap_vat_config: defaultBootstrapVatConfig,
 };