rebase: Support preserving merges in non-interactive mode

diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 2688254af399ddc452b120734d41b41292b0ed69..81392add0b852f51f63a470727c33e0c306260d8 100755 (executable)
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -412,15 +412,17 @@ if [ "$filter_tag_name" ]; then
                echo "$ref -> $new_ref ($sha1 -> $new_sha1)"
 
                if [ "$type" = "tag" ]; then
-                       new_sha1=$(git cat-file tag "$ref" |
+                       new_sha1=$( ( printf 'object %s\ntype commit\ntag %s\n' \
+                                               "$new_sha1" "$new_ref"
+                               git cat-file tag "$ref" |
                                sed -n \
                                    -e "1,/^$/{
-                                         s/^object .*/object $new_sha1/
-                                         s/^type .*/type commit/
-                                         s/^tag .*/tag $new_ref/
+                                         /^object /d
+                                         /^type /d
+                                         /^tag /d
                                        }" \
                                    -e '/^-----BEGIN PGP SIGNATURE-----/q' \
-                                   -e 'p' |
+                                   -e 'p' ) |
                                git mktag) ||
                                die "Could not create new tag object for $ref"
                        if git cat-file tag "$ref" | \