tree 5252b4bd4cb65fda5aa3bd56c3b86f0b22645e5d
parent 7e29b8254f08af820b2f0c3770836638ffe517ab
author Nguyễn Thái Ngọc Duy <pclouds@gmail.com> 1334314474 +0700
committer Junio C Hamano <gitster@pobox.com> 1335543998 -0700

Stop starting pager recursively

git-column can be used as a pager for other git commands, something
like this:

    GIT_PAGER="git -p column --mode='dense color'" git -p branch

The problem with this is that "git -p column" also has $GIT_PAGER set so
the pager runs itself again as another pager. The end result is an
infinite loop of forking. Other git commands have the same problem if
being abused this way.

Check if $GIT_PAGER is already set and stop launching another pager.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>