From 303e5f4c325d008c68e5e70e901ab68b289ade2e Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Tue, 21 Jun 2005 09:47:37 -0700
Subject: Add "git checkout" that does what the name suggests

It is careful by default and refuses to overwrite old info, but if you
want to force everything to be re-read, use the "-f" flag.

Some day I'll make it take individual filenames too. Right now
it's all-or-nothing.
---
 git-checkout-script | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100755 git-checkout-script

(limited to 'git-checkout-script')

diff --git a/git-checkout-script b/git-checkout-script
new file mode 100755
index 0000000000..e8e777f1f2
--- /dev/null
+++ b/git-checkout-script
@@ -0,0 +1,30 @@
+#!/bin/sh
+: ${GIT_DIR=.git}
+old=$(git-rev-parse HEAD)
+new=$(git-rev-parse --revs-only "$@")
+new=${new:-$old}
+args=($(git-rev-parse --no-revs "$@"))
+
+i=0
+force=0
+while [ $i -lt ${#args} ]; do
+    case "${args[$i]}" in
+	"-f")
+		force=1;;
+	"")
+		;;
+	*)
+		echo "unknown flag ${args[$i]}"
+		exit 1;;
+    esac
+    i=$(($i+1))
+done
+
+if $force
+then
+    git-read-tree --reset $new &&
+	git-checkout-cache -q -f -u -a &&
+	echo $new > "$GIT_DIR/HEAD"
+else
+    git-read-tree -m -u $old $new && echo $new > "$GIT_DIR/HEAD"
+fi
-- 
cgit v1.3