[PATCH 1/2] Teach git-reset to let others override its reflog entry.

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When git-rebase invokes `git reset --hard` to rewind the user's
branch prior to starting to reapply each commit this is showing
up in the reflog as a simple `git reset --hard <cmt>` but its not
clear to the end-user inspecting the log why there is a reset.

The new --reflog-action for git-reset behaves like the same option
to git-merge; it can be used by the caller to override the message
entry in the reflog and is intended to be used only when git-reset
is acting as plumbing, not porcelain.

Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
 Documentation/git-reset.txt |    5 +++++
 git-rebase.sh               |    4 ++--
 git-reset.sh                |    8 ++++++--
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt
index 4f42478..7eaa186 100644
--- a/Documentation/git-reset.txt
+++ b/Documentation/git-reset.txt
@@ -45,6 +45,11 @@ OPTIONS
 	switched to. Any changes to tracked files in the working tree
 	since <commit> are lost.
 
+--reflog-action=<action>::
+	This is used internally when `git-rebase` calls this command
+	to reset the current branch prior to merging the rebased
+	commits onto it.
+
 <commit>::
 	Commit to make the current HEAD.
 
diff --git a/git-rebase.sh b/git-rebase.sh
index ece3142..b99f1e3 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -174,7 +174,7 @@ do
 		else
 			die "No rebase in progress?"
 		fi
-		git reset --hard ORIG_HEAD
+		git reset --reflog-action="rebase: abort" --hard ORIG_HEAD
 		exit
 		;;
 	--onto)
@@ -293,7 +293,7 @@ fi
 
 # Rewind the head to "$onto"; this saves our current head in ORIG_HEAD.
 echo "First, rewinding head to replay your work on top of it..."
-git-reset --hard "$onto"
+git-reset --hard --reflog-action="rebase: rewind to $onto_name" "$onto"
 
 # If the $onto is a proper descendant of the tip of the branch, then
 # we just fast forwarded.
diff --git a/git-reset.sh b/git-reset.sh
index 2379db0..7ef6789 100755
--- a/git-reset.sh
+++ b/git-reset.sh
@@ -6,7 +6,7 @@ USAGE='[--mixed | --soft | --hard]  [<commit-ish>] [ [--] <paths>...]'
 SUBDIRECTORY_OK=Yes
 . git-sh-setup
 
-update= reset_type=--mixed
+rloga= update= reset_type=--mixed
 unset rev
 
 while case $# in 0) break ;; esac
@@ -15,6 +15,9 @@ do
 	--mixed | --soft | --hard)
 		reset_type="$1"
 		;;
+	--reflog-action=*)
+		rloga=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+		;;
 	--)
 		break
 		;;
@@ -81,7 +84,8 @@ then
 else
 	rm -f "$GIT_DIR/ORIG_HEAD"
 fi
-git-update-ref -m "reset $reset_type $*" HEAD "$rev"
+test "$rloga" = '' && rloga="reset $reset_type $*"
+git-update-ref -m "$rloga" HEAD "$rev"
 update_ref_status=$?
 
 case "$reset_type" in
-- 
1.4.4.3.gd2e4

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