From: Yann Dirson Date: Tue, 13 Feb 2007 22:36:57 GMT Subject: Missing documentation for GIT_DIFF_OPTS and GIT_EXTERNAL_DIFF Message-ID: <20070213223657.GC4266@nan92-1-81-57-214-146.fbx.proxad.net> I noticed today, after unsuccessfully trying GIT_DIFF_OPTS=-U2, that 1) it did not work, 2) the doc in 1.4.4.4 tells about using "GIT_DIFF_OPTS=-c", which does not work either and 3) there is virtually no more doc about it in HEAD. It would be useful to document which flags are recognized, and notably that -u has to be used instead of GNU diff's -U. At the same time, I noticed that GIT_EXTERNAL_DIFF is not described in the diff docs either, although it is described in the main git.txt page (which may not be the place where users would look for it - at least, only my grep aiming to be accurate before composing this mail finally found it). Best regards, -- Yann.