From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 8 Jul 2007 08:28:18 +0000 (-0700)
Subject: git-stash: try reusing cached stat info as much as possible
X-Git-Tag: v1.5.3-rc1~48
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=b24f56d60491416a1c5a8fc71863bbaa0f390f23;p=git.git

git-stash: try reusing cached stat info as much as possible

Earlier when we read a tree into a temporary index, we read it
from scratch.  Start from the current index and use read-tree -m
to preserve cached stat information as much as possible, in
order to speed up "git add -u".  This makes "git stash" usable
in a source tree of nontrivial size.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/git-stash.sh b/git-stash.sh
index eac555138..de13dd181 100755
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -58,11 +58,11 @@ save_stash () {
 
 	# state of the working tree
 	w_tree=$( (
+		rm -f "$TMP-index" &&
+		cp -p ${GIT_INDEX_FILE-"$GIT_DIR/index"} "$TMP-index" &&
 		GIT_INDEX_FILE="$TMP-index" &&
 		export GIT_INDEX_FILE &&
-
-		rm -f "$TMP-index" &&
-		git read-tree $i_tree &&
+		git read-tree -m $i_tree &&
 		git add -u &&
 		git write-tree &&
 		rm -f "$TMP-index"