git: use different uris for quick diff

extensions/git/src/contentProvider.ts

@@ -32,7 +32,8 @@ export class GitContentProvider {
 	constructor(private model: Model) {
 		this.disposables.push(
 			model.onDidChangeRepository(this.eventuallyFireChangeEvents, this),
-			workspace.registerTextDocumentContentProvider('git', this)
+			workspace.registerTextDocumentContentProvider('git', this),
+			workspace.registerTextDocumentContentProvider('git-original', this)
 		);
 
 		setInterval(() => this.cleanup(), FIVE_MINUTES);
@@ -52,6 +53,10 @@ export class GitContentProvider {
 	}
 
 	async provideTextDocumentContent(uri: Uri): Promise<string> {
+		if (uri.scheme === 'git-original') {
+			uri = new Uri().with({ scheme: 'git', path: uri.query });
+		}
+
 		let ref = uri.query;
 
 		if (ref === '~') {

extensions/git/src/scmProvider.ts

@@ -62,7 +62,9 @@ export class GitSCMProvider implements SCMProvider {
 			return;
 		}
 
-		return uri.with({ scheme: 'git' });
+		// As a mitigation for extensions like ESLint showing warnings and errors
+		// for git URIs, let's change the file extension of these uris to .git.
+		return new Uri().with({ scheme: 'git-original', query: uri.path, path: uri.path + '.git' });
 	}
 
 	dispose(): void {