Re: [PATCH] Redirect cd output to /dev/null, was: git-clone seems dead

[Junio C Hamano <junkio@cox.net>]

Greg Louis <glouis@dynamicro.on.ca> writes:

> Or (2+1==3) detect CDPATH in the same places as (1), complain with a
> brief explanation ("don't export CDPATH; it's really only useful in
> interactive shells") and unset it.

I like your wording above, so probably that is what is going to
happen.  Thanks for the suggestion.

> My patch was about the equivalent of (1), and (1) is what I'd feel
> was the most that git owes its users.

CDPATH has two problems.  1. It takes scripts to unexpected
places (somebody had CDPATH=..:../..:$HOME and the "cd" in
git-clone.sh:get_repo_base took him to $HOME/.git when he said
"clone foo bar" to clone a repository in "foo" which had
"foo/.git").  CDPATH mechanism does not implicitly give "." at
the beginning of CDPATH, which is the most irritating part.
2. the extra echo when it does its thing.

I was under the impression that the patch fixed 2. without doing
anything about 1., but I may be mistaken.

> Option (0) could be justified on the grounds that git users
> are presumably developers and ought to be able to catch that
> sort of blunder, but the facts that you didn't originally twig
> to it, and that it took me a couple of hours to find it
> independently, suggest that that's too cavalier an attitude
> (neither of us being a tyro).

Maybe.  I did not trigger it and did not immediately spot what
was wrong when I heard the symptom because I do not use CDPATH
anywhere myself -- I am old fashioned ;-).