Extension does not react to flow.json changes

[jribbink]

Instructions

Issue To Be Solved

The configuration is only read from the disk the first time the loadConfig is called and then stored globally.

vscode-cadence/extension/src/emulator/local/flowConfig.ts

Lines 56 to 68 in 67ce760

	export async function loadConfig (filePath?: string): Promise<FlowConfig> {
	if (flowConfig === undefined) {
	let flowJsonPath = ''
	if (filePath !== undefined) {
	flowJsonPath = filePath
	} else {
	flowJsonPath = await getConfigPath()
	}
	const fc: FlowConfig = JSON.parse(fs.readFileSync(flowJsonPath, 'utf-8'))
	flowConfig = fc
	}
	return flowConfig
	}

This is problematic since the user will inevitably change their configuration file throughout the course of working on a project.

(Optional): Suggest A Solution

We should probably load the configuration every time we use it or use a file watcher like chokidar in order to update our configuration in memory every time flow.json changes.

However, I am strongly in favour of leaving the flow.json parsing to the language server side of things as we don't really need to be using it in the client at all (See #313). If this were done, this issue would be irrelevant.

(Optional): Context

Issues when changing flow.json keys/accounts & trying to restart emulator.