From 131c1c64f646f2fa3adece698d1da240dc969f03 Mon Sep 17 00:00:00 2001
From: Michael FIG <mfig@agoric.com>
Date: Wed, 18 Mar 2020 18:51:44 -0600
Subject: [PATCH] fix: allow disabling of logging by setting DEBUG=''

---
 packages/agoric-cli/lib/start.js              | 19 ++++++++++++++++---
 .../cosmic-swingset/lib/anylogger-agoric.js   | 14 ++++++++++++--
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/packages/agoric-cli/lib/start.js b/packages/agoric-cli/lib/start.js
index ab398b84deb..7b9d6847c8e 100644
--- a/packages/agoric-cli/lib/start.js
+++ b/packages/agoric-cli/lib/start.js
@@ -13,9 +13,14 @@ export default async function startMain(progname, rawArgs, powers, opts) {
   const { anylogger, fs, spawn, os, process } = powers;
   const log = anylogger('agoric:start');
 
-  const pspawn = (cmd, cargs, { stdio = 'inherit', ...rest } = {}) => {
+  const pspawnEnv = { ...process.env };
+  const pspawn = (
+    cmd,
+    cargs,
+    { stdio = 'inherit', env = pspawnEnv, ...rest } = {},
+  ) => {
     log.info(chalk.blueBright(cmd, ...cargs));
-    const cp = spawn(cmd, cargs, { stdio, ...rest });
+    const cp = spawn(cmd, cargs, { stdio, env, ...rest });
     const pr = new Promise((resolve, _reject) => {
       cp.on('exit', resolve);
       cp.on('error', () => resolve(-1));
@@ -62,6 +67,7 @@ export default async function startMain(progname, rawArgs, powers, opts) {
   async function startFakeChain(profileName, _startArgs, popts) {
     const fakeDelay =
       popts.delay === undefined ? FAKE_CHAIN_DELAY : Number(popts.delay);
+
     if (!opts.sdk) {
       if (!(await exists('_agstate/agoric-servers/node_modules'))) {
         log.error(`you must first run '${progname} install'`);
@@ -195,10 +201,17 @@ export default async function startMain(progname, rawArgs, powers, opts) {
   };
 
   const { _: args, ...popts } = parseArgs(rawArgs, {
-    boolean: ['reset', 'restart', 'pull'],
+    boolean: ['reset', 'restart', 'pull', 'debug'],
     default: { restart: true },
   });
 
+  if (popts.debug) {
+    // Crank out the debugging.
+    pspawnEnv.DEBUG = 'agoric';
+  } else {
+    pspawnEnv.DEBUG = '';
+  }
+
   const profileName = args[0] || 'dev';
   const startFn = profiles[profileName];
   if (!startFn) {
diff --git a/packages/cosmic-swingset/lib/anylogger-agoric.js b/packages/cosmic-swingset/lib/anylogger-agoric.js
index dbf8efdfd63..1c93c34dd88 100644
--- a/packages/cosmic-swingset/lib/anylogger-agoric.js
+++ b/packages/cosmic-swingset/lib/anylogger-agoric.js
@@ -2,8 +2,18 @@ import anylogger from 'anylogger';
 
 // Turn on debugging output with DEBUG=agoric
 
-const debugging = process.env.DEBUG && process.env.DEBUG.includes('agoric');
-const defaultLevel = debugging ? anylogger.levels.debug : anylogger.levels.log;
+let debugging;
+if (process.env.DEBUG === undefined) {
+  // DEBUG not set, default to log level.
+  debugging = 'log';
+} else if (process.env.DEBUG.includes('agoric')) {
+  // DEBUG set and we're enabled; verbose.
+  debugging = 'debug';
+} else {
+  // DEBUG set but we're not enabled; quieter than normal.
+  debugging = 'info';
+}
+const defaultLevel = anylogger.levels[debugging];
 
 const oldExt = anylogger.ext;
 anylogger.ext = (l, o) => {