Function getBranchComparison

src/main/lib/git/status.ts:195–239

(
	git: ReturnType<typeof simpleGit>,
	defaultBranch: string,
)

}

async function getBranchComparison(
	git: ReturnType<typeof simpleGit>,
	defaultBranch: string,
): Promise<BranchComparison> {
	let commits: GitChangesStatus["commits"] = [];
	let againstBase: ChangedFile[] = [];
	let ahead = 0;
	let behind = 0;

	try {
		const tracking = await git.raw([
			"rev-list",
			"--left-right",
			"--count",
			`origin/${defaultBranch}...HEAD`,
		]);
		const [behindStr, aheadStr] = tracking.trim().split(/\s+/);
		behind = Number.parseInt(behindStr || "0", 10);
		ahead = Number.parseInt(aheadStr || "0", 10);

		const logOutput = await git.raw([
			"log",
			`origin/${defaultBranch}..HEAD`,
			"--format=%H|%h|%s|%b|%an|%aI",
		]);
		commits = parseGitLog(logOutput);

		if (ahead > 0) {
			const nameStatus = await git.raw([
				"diff",
				"--name-status",
				`origin/${defaultBranch}...HEAD`,
			]);
			againstBase = parseNameStatus(nameStatus);

			await applyNumstatToFiles(git, againstBase, [
				"diff",
				"--numstat",
				`origin/${defaultBranch}...HEAD`,
			]);
		}
	} catch {}

	return { commits, againstBase, ahead, behind };
}

/** Max file size for line counting (1 MiB) - skip larger files to avoid OOM */
const MAX_LINE_COUNT_SIZE = 1 * 1024 * 1024;