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Documentation: Describe "git diff <blob> <blob>" separately

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As it was not a common operation, it was described as if it is a
side note for the more common two-commit variant, but this mode
behaves very differently, e.g. it does not make any sense to ask
recursive behaviour, or give the command a pathspec.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2012-12-18 11:35:28 -08:00
parent 7e2010537e
commit bd52900df4
1 changed files with 7 additions and 2 deletions
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Documentation/git-diff.txt
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@ -12,6 +12,7 @@ SYNOPSIS
'git diff' [options] [<commit>] [--] [<path>...]
'git diff' [options] --cached [<commit>] [--] [<path>...]
'git diff' [options] <commit> <commit> [--] [<path>...]
'git diff' [options] <blob> <blob>
'git diff' [options] [--no-index] [--] <path> <path>
DESCRIPTION
@ -55,6 +56,11 @@ directories. This behavior can be forced by --no-index.
This is to view the changes between two arbitrary
<commit>.
'git diff' [options] <blob> <blob>::
This form is to view the differences between the raw
contents of two blob objects.
'git diff' [--options] <commit>..<commit> [--] [<path>...]::
This is synonymous to the previous form. If <commit> on
@ -72,8 +78,7 @@ directories. This behavior can be forced by --no-index.
Just in case if you are doing something exotic, it should be
noted that all of the <commit> in the above description, except
in the last two forms that use ".." notations, can be any
<tree>. The third form ('git diff <commit> <commit>') can also
be used to compare two <blob> objects.
<tree>.
For a more complete list of ways to spell <commit>, see
"SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].