From 0a2d05496dd2de6e582f0df5729ffacd5ce80406 Mon Sep 17 00:00:00 2001
From: Michael FIG <mfig@agoric.com>
Date: Mon, 11 Jan 2021 13:23:37 -0600
Subject: [PATCH] feat: allow $NO_FAKE_CURRENCIES=1 to eliminate default purses

---
 .../cosmic-swingset/lib/ag-solo/fake-chain.js |  1 +
 .../lib/ag-solo/vats/bootstrap.js             | 24 ++++++++++++++-----
 packages/cosmic-swingset/lib/chain-main.js    |  5 +++-
 3 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/packages/cosmic-swingset/lib/ag-solo/fake-chain.js b/packages/cosmic-swingset/lib/ag-solo/fake-chain.js
index e842aca94f3..710b567f225 100644
--- a/packages/cosmic-swingset/lib/ag-solo/fake-chain.js
+++ b/packages/cosmic-swingset/lib/ag-solo/fake-chain.js
@@ -52,6 +52,7 @@ export async function connectToFakeChain(basedir, GCI, delay, inbound) {
     ROLE: 'sim-chain',
     giveMeAllTheAgoricPowers: true,
     hardcodedClientAddresses: [bootAddress],
+    noFakeCurrencies: process.env.NO_FAKE_CURRENCIES,
   };
   const stateDBdir = path.join(basedir, `fake-chain-${GCI}-state`);
   function doOutboundBridge(dstID, _obj) {
diff --git a/packages/cosmic-swingset/lib/ag-solo/vats/bootstrap.js b/packages/cosmic-swingset/lib/ag-solo/vats/bootstrap.js
index 742c20fcc7a..e255a56efc4 100644
--- a/packages/cosmic-swingset/lib/ag-solo/vats/bootstrap.js
+++ b/packages/cosmic-swingset/lib/ag-solo/vats/bootstrap.js
@@ -38,7 +38,12 @@ export function buildRootObject(vatPowers, vatParameters) {
   }
 
   // Make services that are provided on the real or virtual chain side
-  async function makeChainBundler(vats, timerDevice, vatAdminSvc) {
+  async function makeChainBundler(
+    vats,
+    timerDevice,
+    vatAdminSvc,
+    noFakeCurrencies,
+  ) {
     // Create singleton instances.
     const [
       sharingService,
@@ -67,7 +72,7 @@ export function buildRootObject(vatPowers, vatParameters) {
      * @property {Array<[number, number]>} [fakeTradesGivenCentral]
      */
     /** @type {Map<string, IssuerRecord>} */
-    const issuerNameToRecord = new Map(
+    const fakeIssuerNameToRecord = new Map(
       harden([
         [
           CENTRAL_ISSUER_NAME,
@@ -133,13 +138,13 @@ export function buildRootObject(vatPowers, vatParameters) {
         ],
       ]),
     );
+    const issuerNameToRecord = noFakeCurrencies
+      ? new Map()
+      : fakeIssuerNameToRecord;
     const issuerNames = [...issuerNameToRecord.keys()];
     const centralIssuerIndex = issuerNames.findIndex(
       issuerName => issuerName === CENTRAL_ISSUER_NAME,
     );
-    if (centralIssuerIndex < 0) {
-      throw Error(`Cannot find issuer ${CENTRAL_ISSUER_NAME}`);
-    }
     const issuers = await Promise.all(
       issuerNames.map(issuerName =>
         E(vats.mints).makeMintAndIssuer(
@@ -396,6 +401,7 @@ export function buildRootObject(vatPowers, vatParameters) {
       const {
         ROLE,
         giveMeAllTheAgoricPowers,
+        noFakeCurrencies,
         hardcodedClientAddresses,
       } = vatParameters.argv;
 
@@ -424,7 +430,12 @@ export function buildRootObject(vatPowers, vatParameters) {
           // provisioning vat can ask the demo server for bundles, and can
           // register client pubkeys with comms
           await E(vats.provisioning).register(
-            await makeChainBundler(vats, devices.timer, vatAdminSvc),
+            await makeChainBundler(
+              vats,
+              devices.timer,
+              vatAdminSvc,
+              noFakeCurrencies,
+            ),
             vats.comms,
             vats.vattp,
           );
@@ -469,6 +480,7 @@ export function buildRootObject(vatPowers, vatParameters) {
             vats,
             devices.timer,
             vatAdminSvc,
+            noFakeCurrencies,
           );
 
           // Allow manual provisioning requests via `agoric cosmos`.
diff --git a/packages/cosmic-swingset/lib/chain-main.js b/packages/cosmic-swingset/lib/chain-main.js
index 98163d3b856..ff84016e704 100644
--- a/packages/cosmic-swingset/lib/chain-main.js
+++ b/packages/cosmic-swingset/lib/chain-main.js
@@ -216,7 +216,10 @@ export default async function main(progname, args, { path, env, agcc }) {
     }
 
     const vatsdir = path.resolve(__dirname, '../lib/ag-solo/vats');
-    const argv = { ROLE: 'chain' };
+    const argv = {
+      ROLE: 'chain',
+      noFakeCurrencies: process.env.NO_FAKE_CURRENCIES,
+    };
     const s = await launch(
       stateDBDir,
       mailboxStorage,