> +static int run_write_commit_graph(struct repository *r)
> +{
> + int result;
> + struct argv_array cmd = ARGV_ARRAY_INIT;
> +
> + argv_array_pushl(&cmd, "-C", r->worktree,
> + "commit-graph", "write",
> + "--split", "--reachable",
> + NULL);
As mentioned in my reply to an earlier patch (sent a few minutes ago),
this won't work if there are environment variables like GIT_DIR present.
Besides that, the overall design looks reasonable.
