Re: [PATCH] No color diff when redirecting to file

Matthieu Moy [off-list ref] writes:

Johannes Sixt [off-list ref] writes:

quoted

That said, I cannot reproduce. Perhaps your configuration says 
color.ui=always? If so, then this is expected behavior and not a bug, IMO.

I think you're right.

I tested this (without the patch):

git diff
=> I get color, because I have color.ui = auto

git diff | cat
=> I don't get color

git diff --color=auto | cat
=> no color

git diff --color=always | cat
=> colors, because I've asked

this seems to be just the right behavior.

Overall I agree with the above observation, but the original poster says
"redirecting into a _file_".

Another possibility is that the mysterious platform the original poster
did not mention has a broken istty() that mistakes a file descriptor going
to a file (instead of a pipe to another process) as connected to a tty.