filter-branch: avoid passing commit message through sed

[thirdparty/git.git] / git-filter-branch.sh

diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 86d6994619151fb63327848e6763b07971017ad7..5b3f63d8bbc65e80d1f4278e1ec6e27df604dc9a 100755 (executable)
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -332,7 +332,13 @@ while read commit parents; do
        parentstr=
        for parent in $parents; do
                for reparent in $(map "$parent"); do
-                       parentstr="$parentstr -p $reparent"
+                       case "$parentstr " in
+                       *" -p $reparent "*)
+                               ;;
+                       *)
+                               parentstr="$parentstr -p $reparent"
+                               ;;
+                       esac
                done
        done
        if [ "$filter_parent" ]; then
@@ -340,7 +346,15 @@ while read commit parents; do
                                die "parent filter failed: $filter_parent"
        fi
 
-       sed -e '1,/^$/d' <../commit | \
+       {
+               while read -r header_line && test -n "$header_line"
+               do
+                       # skip header lines...
+                       :;
+               done
+               # and output the actual commit message
+               cat
+       } <../commit |
                eval "$filter_msg" > ../message ||
                        die "msg filter failed: $filter_msg"
        workdir=$workdir @SHELL_PATH@ -c "$filter_commit" "git commit-tree" \