From 2a577e04750f9f90f72f763b45232dd9b5a35d93 Mon Sep 17 00:00:00 2001
From: Jacob Evans <jacob@dekz.net>
Date: Mon, 17 Dec 2018 12:42:27 +1100
Subject: Add Docker image and Snapshot commands

---
 packages/dev-utils/src/web3_factory.ts | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'packages/dev-utils/src')

diff --git a/packages/dev-utils/src/web3_factory.ts b/packages/dev-utils/src/web3_factory.ts
index b22bcc88b..5f8981a46 100644
--- a/packages/dev-utils/src/web3_factory.ts
+++ b/packages/dev-utils/src/web3_factory.ts
@@ -17,6 +17,7 @@ export interface Web3Config {
     shouldThrowErrorsOnGanacheRPCResponse?: boolean; // default: true
     rpcUrl?: string; // default: localhost:8545
     shouldUseFakeGasEstimate?: boolean; // default: true
+    ganacheDatabasePath?: string; // default: undefined, creates a tmp dir
 }
 
 export const web3Factory = {
@@ -45,9 +46,14 @@ export const web3Factory = {
             const shouldThrowErrorsOnGanacheRPCResponse =
                 _.isUndefined(config.shouldThrowErrorsOnGanacheRPCResponse) ||
                 config.shouldThrowErrorsOnGanacheRPCResponse;
+            if (!_.isUndefined(config.ganacheDatabasePath)) {
+                // Saving the snapshot to a local db. Ganache requires this directory to exist
+                fs.mkdirSync(config.ganacheDatabasePath);
+            }
             provider.addProvider(
                 new GanacheSubprovider({
                     vmErrorsOnRPCResponse: shouldThrowErrorsOnGanacheRPCResponse,
+                    db_path: config.ganacheDatabasePath,
                     gasLimit: constants.GAS_LIMIT,
                     logger,
                     verbose: env.parseBoolean(EnvVars.VerboseGanache),
-- 
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