doc/git-show: include --diff-merges description
Move description of --diff-merges option from git-log.txt to
diff-options.txt so that it is included in the git-show help.
Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 573fb9b..c995e82 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -33,6 +33,57 @@
show the patch by default, or to cancel the effect of `--patch`.
endif::git-format-patch[]
+ifdef::git-log[]
+--diff-merges=(off|none|first-parent|1|separate|m|combined|c|dense-combined|cc)::
+--no-diff-merges::
+ Specify diff format to be used for merge commits. Default is
+ {diff-merges-default} unless `--first-parent` is in use, in which case
+ `first-parent` is the default.
++
+--diff-merges=(off|none):::
+--no-diff-merges:::
+ Disable output of diffs for merge commits. Useful to override
+ implied value.
++
+--diff-merges=first-parent:::
+--diff-merges=1:::
+ This option makes merge commits show the full diff with
+ respect to the first parent only.
++
+--diff-merges=separate:::
+--diff-merges=m:::
+-m:::
+ This makes merge commits show the full diff with respect to
+ each of the parents. Separate log entry and diff is generated
+ for each parent. `-m` doesn't produce any output without `-p`.
++
+--diff-merges=combined:::
+--diff-merges=c:::
+-c:::
+ With this option, diff output for a merge commit shows the
+ differences from each of the parents to the merge result
+ simultaneously instead of showing pairwise diff between a
+ parent and the result one at a time. Furthermore, it lists
+ only files which were modified from all parents. `-c` implies
+ `-p`.
++
+--diff-merges=dense-combined:::
+--diff-merges=cc:::
+--cc:::
+ With this option the output produced by
+ `--diff-merges=combined` is further compressed by omitting
+ uninteresting hunks whose contents in the parents have only
+ two variants and the merge result picks one of them without
+ modification. `--cc` implies `-p`.
+
+--combined-all-paths::
+ This flag causes combined diffs (used for merge commits) to
+ list the name of the file from all parents. It thus only has
+ effect when `--diff-merges=[dense-]combined` is in use, and
+ is likely only useful if filename changes are detected (i.e.
+ when either rename or copy detection have been requested).
+endif::git-log[]
+
-U<n>::
--unified=<n>::
Generate diffs with <n> lines of context instead of
