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[PATCH] git-rebase-script: rebase local commits to new upstream head.
authorJunio C Hamano <junkio@cox.net>
Sat, 25 Jun 2005 09:23:43 +0000 (02:23 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Sat, 25 Jun 2005 23:52:16 +0000 (16:52 -0700)
Using git-cherry, forward port local commits missing from the
new upstream head.  This also depends on "-m" flag support in
git-commit-script.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Makefile patch | blob | history
git-rebase-script [new file with mode: 0755] patch | blob

diff --git a/Makefile b/Makefile
index 51d0b26..d9aae01 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ SCRIPTS=git git-apply-patch-script git-merge-one-file-script git-prune-script \
        git-deltafy-script git-fetch-script git-status-script git-commit-script \
        git-log-script git-shortlog git-cvsimport-script git-diff-script \
        git-reset-script git-add-script git-checkout-script git-clone-script \
-       gitk git-cherry
+       gitk git-cherry git-rebase-script
 
 PROG=   git-update-cache git-diff-files git-init-db git-write-tree \
        git-read-tree git-commit-tree git-cat-file git-fsck-cache \
diff --git a/git-rebase-script b/git-rebase-script
new file mode 100755 (executable)
index 0000000..10ab700
--- /dev/null
+++ b/git-rebase-script
@@ -0,0 +1,49 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano.
+#
+
+usage="usage: $0 "'<upstream> [<head>]
+
+Uses output from git-cherry to rebase local commits to the new head of
+upstream tree.'
+
+: ${GIT_DIR=.git}
+
+case "$#" in
+1) linus=`git-rev-parse "$1"` &&
+   junio=`git-rev-parse HEAD` || exit
+   ;;
+2) linus=`git-rev-parse "$1"` &&
+   junio=`git-rev-parse "$2"` || exit
+   ;;
+*) echo >&2 "$usage"; exit 1 ;;
+esac
+
+git-read-tree -m -u $junio $linus &&
+echo "$linus" >"$GIT_DIR/HEAD" || exit
+
+tmp=.rebase-tmp$$
+fail=$tmp-fail
+trap "rm -rf $tmp-*" 0 1 2 3 15
+
+>$fail
+
+git-cherry $linus $junio |
+while read sign commit
+do
+       case "$sign" in
+       -) continue ;;
+       esac
+       S=`cat "$GIT_DIR/HEAD"` &&
+        GIT_EXTERNAL_DIFF=git-apply-patch-script git-diff-tree -p $commit &&
+       git-commit-script -m "$commit" || {
+               echo $commit >>$fail
+               git-read-tree --reset -u $S
+       }
+done
+if test -s $fail
+then
+       echo Some commits could not be rebased, check by hand:
+       cat $fail
+fi
The core git plumbing