On Sun, May 02 2021, Eric Sunshine wrote: > On Sat, May 1, 2021 at 10:59 AM Lénaïc Huard <lenaic@xxxxxxxxx> wrote: >> + strvec_push(&child.args, "--now"); >> + strvec_pushf(&child.args, "git-maintenance@%s.timer", frequency); >> + >> + if (start_command(&child)) >> + die(_("failed to run systemctl")); >> + return finish_command(&child); >> +} >> +static int systemd_timer_write_unit_templates(const char *exec_path) >> +{ >> + unit = "[Unit]\n" >> + "Description=Optimize Git repositories data\n" >> + "\n" >> + "[Service]\n" >> + "Type=oneshot\n" >> + "ExecStart=\"%1$s/git\" --exec-path=\"%1$s\" for-each-repo --config=maintenance.repo maintenance run --schedule=%%i\n" > > I see that it's in POSIX, but do we use this `%n$s` directive > elsewhere in the Git source code? If not, I'd be cautious of > introducing it here. Maybe it's better to just use plain `%s` twice... We use it in po/, so for sprintf() on systems that don't have NO_GETTEXT=Y we already test it in the wild. But no, I don't think anything in the main source uses it, FWIW I have a WIP series in my own fork that I've cooked for a while that uses this, I haven't run into any issues with it in either GitHub's CI (e.g. Windows), or on the systems I myself test on. I think it would be a useful canary to just take a change like this, we can always change it to the form you suggest if it doesn't work out.