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authorAlex Browne <stephenalexbrowne@gmail.com>2018-07-04 03:55:05 +0800
committerAlex Browne <stephenalexbrowne@gmail.com>2018-07-04 03:57:11 +0800
commitdc956020ef7c6d3f1880263700422b31253c8da3 (patch)
tree6574a09976cfb5944107b3667748e85520c260a9 /packages/dev-utils
parentce1542da4fbab26d589f07f006fb5328a28bb9dd (diff)
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Move NodeType caching out of web3-wrapper and into our internal code
Diffstat (limited to 'packages/dev-utils')
-rw-r--r--packages/dev-utils/src/blockchain_lifecycle.ts12
1 files changed, 10 insertions, 2 deletions
diff --git a/packages/dev-utils/src/blockchain_lifecycle.ts b/packages/dev-utils/src/blockchain_lifecycle.ts
index abca6d386..9bd65ee5d 100644
--- a/packages/dev-utils/src/blockchain_lifecycle.ts
+++ b/packages/dev-utils/src/blockchain_lifecycle.ts
@@ -1,5 +1,6 @@
import { logUtils } from '@0xproject/utils';
import { NodeType, Web3Wrapper } from '@0xproject/web3-wrapper';
+import * as _ from 'lodash';
// HACK(albrow): 🐉 We have to do this so that debug.setHead works correctly.
// (Geth does not seem to like debug.setHead(0), so by sending some transactions
@@ -12,12 +13,13 @@ export class BlockchainLifecycle {
private _web3Wrapper: Web3Wrapper;
private _snapshotIdsStack: number[];
private _addresses: string[] = [];
+ private _nodeType: NodeType | undefined;
constructor(web3Wrapper: Web3Wrapper) {
this._web3Wrapper = web3Wrapper;
this._snapshotIdsStack = [];
}
public async startAsync(): Promise<void> {
- const nodeType = await this._web3Wrapper.getNodeTypeAsync();
+ const nodeType = await this._getNodeTypeAsync();
switch (nodeType) {
case NodeType.Ganache:
const snapshotId = await this._web3Wrapper.takeSnapshotAsync();
@@ -38,7 +40,7 @@ export class BlockchainLifecycle {
}
}
public async revertAsync(): Promise<void> {
- const nodeType = await this._web3Wrapper.getNodeTypeAsync();
+ const nodeType = await this._getNodeTypeAsync();
switch (nodeType) {
case NodeType.Ganache:
const snapshotId = this._snapshotIdsStack.pop() as number;
@@ -76,4 +78,10 @@ export class BlockchainLifecycle {
}
logUtils.warn('Done mining the minimum number of blocks.');
}
+ private async _getNodeTypeAsync(): Promise<NodeType> {
+ if (_.isUndefined(this._nodeType)) {
+ this._nodeType = await this._web3Wrapper.getNodeTypeAsync();
+ }
+ return this._nodeType;
+ }
}