From: Junio C Hamano <junkio@cox.net>
Date: Sat, 14 Apr 2007 14:11:14 GMT
Subject: Re: [PATCH] create_directories: simplify and avoid repeated copying
Message-ID: <7vlkgv9hbx.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <20070414013003.B0B4C2F1DC3@geert-boschs-computer.local>

Geert Bosch <bosch@gnat.com> writes:

> Signed-off-by: Geert Bosch <bosch@gnat.com>
> ---
> I needed to change the logic of this function a bit for
> doing some local hacks^Wmodifications and thought it might
> be a slight improvement/simplification.
> No change in functionality and passed 'make test'.

I like the removal of repeated copying, but I wonder if the
denser condition is really easier to read.

I tried to like it, but I needed to reindent it first, and then
I needed to read it three times to convince myself that they are
equivalent.

        if (errno != EEXIST
            || ((!force || unlink(buf) || mkdir(buf, 0777))
                && (stat(buf, &st) || !S_ISDIR(st.st_mode))) )
                die("cannot create directory at %s", buf);

In the end, I managed to convince myself that this denser
version is doing the same thing as the original, and it is nicer
to see it in only three lines, I am not sure if it is easier to
read anymore, judging from the time it took me to reach that
conclusion...