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-rw-r--r--Documentation/git-diff.txt34
1 files changed, 22 insertions, 12 deletions
diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt
index f8d0819113..bbab35fcaf 100644
--- a/Documentation/git-diff.txt
+++ b/Documentation/git-diff.txt
@@ -12,25 +12,31 @@ 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
-----------
Show changes between the working tree and the index or a tree, changes
-between the index and a tree, changes between two trees, or changes
-between two files on disk.
+between the index and a tree, changes between two trees, changes between
+two blob objects, or changes between two files on disk.
'git diff' [--options] [--] [<path>...]::
This form is to view the changes you made relative to
the index (staging area for the next commit). In other
- words, the differences are what you _could_ tell git to
+ words, the differences are what you _could_ tell Git to
further add to the index but you still haven't. You can
stage these changes by using linkgit:git-add[1].
-+
-If exactly two paths are given and at least one points outside
-the current repository, 'git diff' will compare the two files /
-directories. This behavior can be forced by --no-index.
+
+'git diff' --no-index [--options] [--] [<path>...]::
+
+ This form is to compare the given two paths on the
+ filesystem. You can omit the `--no-index` option when
+ running the command in a working tree controlled by Git and
+ at least one of the paths points outside the working tree,
+ or when running the command outside a working tree
+ controlled by Git.
'git diff' [--options] --cached [<commit>] [--] [<path>...]::
@@ -38,7 +44,7 @@ directories. This behavior can be forced by --no-index.
commit relative to the named <commit>. Typically you
would want comparison with the latest commit, so if you
do not give <commit>, it defaults to HEAD.
- If HEAD does not exist (e.g. unborned branches) and
+ If HEAD does not exist (e.g. unborn branches) and
<commit> is not given, it shows all staged changes.
--staged is a synonym of --cached.
@@ -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].
@@ -82,6 +87,11 @@ and the range notations ("<commit>..<commit>" and
"<commit>\...<commit>") do not mean a range as defined in the
"SPECIFYING RANGES" section in linkgit:gitrevisions[7].
+'git diff' [options] <blob> <blob>::
+
+ This form is to view the differences between the raw
+ contents of two blob objects.
+
OPTIONS
-------
:git-diff: 1
@@ -148,8 +158,8 @@ $ git diff --name-status <2>
$ git diff arch/i386 include/asm-i386 <3>
------------
+
-<1> Show only modification, rename and copy, but not addition
-nor deletion.
+<1> Show only modification, rename, and copy, but not addition
+or deletion.
<2> Show only names and the nature of change, but not actual
diff output.
<3> Limit diff output to named subtrees.