Function getConcreteFileUri

extensions/github1s/src/commands/editor.ts:71–80

(fileUri: vscode.Uri)

// get the file uri with the concrete commit sha, the `ref` in
// `fileUri.authority` maybe newer but not related this file
const getConcreteFileUri = async (fileUri: vscode.Uri) => {
	// the `fileUri.authority` maybe empty, fallback to router.getAuthority() in this case
	const fileAuthority = fileUri.authority || (await router.getAuthority());
	const [repo, ref] = fileAuthority.split('+').filter(Boolean);
	const repository = Repository.getInstance(fileUri.scheme, repo);
	const commit = await repository.getFileLatestCommit(ref, fileUri.path.slice(1));
	const latestCommitSha = commit?.sha || (await repository.getCommitItem(ref))?.sha || 'HEAD';

	return fileUri.with({ authority: `${repo}+${latestCommitSha}` });
};

// show the file's diff between current commit and previous commit
const commandOpenFilePreviousRevision = async (fileUri: vscode.Uri) => {