[verse]
'git diff' [<options>] [<commit>] [--] [<path>...]
'git diff' [<options>] --cached [<commit>] [--] [<path>...]
-'git diff' [<options>] <commit> <commit> [--] [<path>...]
+'git diff' [<options>] <commit> [<commit>...] <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, changes between
-two blob objects, or changes between two files on disk.
+between the index and a tree, changes between two trees, changes resulting
+from a merge, changes between two blob objects, or changes between two
+files on disk.
'git diff' [<options>] [--] [<path>...]::
one side is omitted, it will have the same effect as
using HEAD instead.
+'git diff' [<options>] <commit> [<commit>...] <commit> [--] [<path>...]::
+
+ This form is to view the results of a merge commit. The first
+ listed <commit> must be the merge itself; the remaining two or
+ more commits should be its parents. A convenient way to produce
+ the desired set of revisions is to use the {caret}@ suffix.
+ For instance, if `master` names a merge commit, `git diff master
+ master^@` gives the same combined diff as `git show master`.
+
'git diff' [<options>] <commit>\...<commit> [--] [<path>...]::
This form is to view the changes on the branch containing
linkgit:git-log[1],
linkgit:gitdiffcore[7],
linkgit:git-format-patch[1],
-linkgit:git-apply[1]
+linkgit:git-apply[1],
+linkgit:git-show[1]
GIT
---
#define DIFF_NO_INDEX_IMPLICIT 2
static const char builtin_diff_usage[] =
-"git diff [<options>] [<commit> [<commit>]] [--] [<path>...]";
+"git diff [<options>] [<commit>] [--] [<path>...]\n"
+" or: git diff [<options>] --cached [<commit>] [--] [<path>...]\n"
+" or: git diff [<options>] <commit> [<commit>...] <commit> [--] [<path>...]\n"
+" or: git diff [<options>] <commit>...<commit>] [--] [<path>...]\n"
+" or: git diff [<options>] <blob> <blob>]\n"
+" or: git diff [<options>] --no-index [--] <path> <path>]\n"
+COMMON_DIFF_OPTIONS_HELP;
static const char *blob_path(struct object_array_entry *entry)
{