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Add Cargo.toml file check before cargo watch start

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This commit is contained in:
Edwin Cheng 2019-04-02 14:58:58 +08:00
parent 02e450f354
commit 06053a0a76
1 changed files with 22 additions and 0 deletions
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22
editors/code/src/commands/cargo_watch.ts
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@ -1,4 +1,5 @@
import * as child_process from 'child_process';
import * as fs from 'fs';
import * as path from 'path';
import * as vscode from 'vscode';
import { Server } from '../server';
@ -14,6 +15,27 @@ export class CargoWatchProvider {
private outputChannel?: vscode.OutputChannel;
public activate(subscriptions: vscode.Disposable[]) {
let cargoExists = false;
const cargoTomlFile = path.join(
vscode.workspace.rootPath!,
'Cargo.toml'
);
// Check if the working directory is valid cargo root path
try {
if (fs.existsSync(cargoTomlFile)) {
cargoExists = true;
}
} catch (err) {
cargoExists = false;
}
if (!cargoExists) {
vscode.window.showErrorMessage(
`Couldn\'t find \'Cargo.toml\' in ${cargoTomlFile}`
);
return;
}
subscriptions.push(this);
this.diagnosticCollection = vscode.languages.createDiagnosticCollection(
'rustc'