Document --left-right option to rev-list.

Explanation is paraphrased from "577ed5c... rev-list --left-right"

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Documentation/git-rev-list.txt b/Documentation/git-rev-list.txt
index 4f145eaba47175e48dd592ffe5018be5cb4cb375..11ce395c982d5eb217d13441c2668884cc371d22 100644 (file)
--- a/Documentation/git-rev-list.txt
+++ b/Documentation/git-rev-list.txt
@@ -21,6 +21,7 @@ SYNOPSIS
             [ \--stdin ]
             [ \--topo-order ]
             [ \--parents ]
+            [ \--left-right ]
             [ \--encoding[=<encoding>] ]
             [ \--(author|committer|grep)=<pattern> ]
             [ [\--objects | \--objects-edge] [ \--unpacked ] ]
@@ -100,6 +101,36 @@ include::pretty-formats.txt[]
 
        Print the parents of the commit.
 
+--left-right::
+
+       Mark which side of a symmetric diff a commit is reachable from.
+       Commits from the left side are prefixed with `<` and those from
+       the right with `>`.  If combined with `--boundary`, those
+       commits are prefixed with `-`.
++
+For example, if you have this topology:
++
+-----------------------------------------------------------------------
+             y---b---b  branch B
+            / \ /
+           /   .
+          /   / \
+         o---x---a---a  branch A
+-----------------------------------------------------------------------
++
+you would get an output line this:
++
+-----------------------------------------------------------------------
+       $ git rev-list --left-right --boundary --pretty=oneline A...B
+
+       >bbbbbbb... 3rd on b
+       >bbbbbbb... 2nd on b
+       <aaaaaaa... 3rd on a
+       <aaaaaaa... 2nd on a
+       -yyyyyyy... 1st on b
+       -xxxxxxx... 1st on a
+-----------------------------------------------------------------------
+
 Diff Formatting
 ~~~~~~~~~~~~~~~
 

diff --git a/builtin-rev-list.c b/builtin-rev-list.c
index 51858e3233a74a2a5cc7e96e7dc5d9786fecc326..b86e7ca8b18c7d11886dd3a1b4ca0eba95af264a 100644 (file)
--- a/builtin-rev-list.c
+++ b/builtin-rev-list.c
@@ -35,6 +35,7 @@ static const char rev_list_usage[] =
 "    --header | --pretty\n"
 "    --abbrev=nr | --no-abbrev\n"
 "    --abbrev-commit\n"
+"    --left-right\n"
 "  special purpose:\n"
 "    --bisect"
 ;