X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-filter-branch.sh;h=674a25d27e50b421e516e8ca6e1190d04e323e9c;hb=f2dc849e9c5fe363ad089f6c3f2b7b3d79fd6a6f;hp=a12f6c2d4c7ad3c4f69a783f7255b3010224d0c3;hpb=15eda0202aa3c63fa7b8f9f72df86f4e50eb1d2b;p=git.git

diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index a12f6c2d4..674a25d27 100755
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -8,6 +8,9 @@
 # a new branch. You can specify a number of filters to modify the commits,
 # files and trees.
 
+# The following functions will also be available in the commit filter:
+
+functions=$(cat << \EOF
 warn () {
         echo "$*" >&2
 }
@@ -46,6 +49,10 @@ die()
 	echo "$*" >&2
 	exit 1
 }
+EOF
+)
+
+eval "$functions"
 
 # When piped a commit, output a script to set the ident of either
 # "author" or "committer
@@ -80,11 +87,6 @@ set_ident () {
 	echo "[ -n \"\$GIT_${uid}_NAME\" ] || export GIT_${uid}_NAME=\"\${GIT_${uid}_EMAIL%%@*}\""
 }
 
-# This script can be sourced by the commit filter to get the functions
-test "a$SOURCE_FUNCTIONS" = a1 && return
-this_script="$(cd "$(dirname "$0")"; pwd)"/$(basename "$0")
-export this_script
-
 USAGE="[--env-filter <command>] [--tree-filter <command>] \
 [--index-filter <command>] [--parent-filter <command>] \
 [--msg-filter <command>] [--commit-filter <command>] \
@@ -92,8 +94,13 @@ USAGE="[--env-filter <command>] [--tree-filter <command>] \
 [--original <namespace>] [-d <directory>] [-f | --force] \
 [<rev-list options>...]"
 
+OPTIONS_SPEC=
 . git-sh-setup
 
+git diff-files --quiet &&
+	git diff-index --cached --quiet HEAD -- ||
+	die "Cannot rewrite branch(es) with a dirty working directory."
+
 tempdir=.git-rewrite
 filter_env=
 filter_tree=
@@ -151,7 +158,7 @@ do
 		filter_msg="$OPTARG"
 		;;
 	--commit-filter)
-		filter_commit='SOURCE_FUNCTIONS=1 . "$this_script";'" $OPTARG"
+		filter_commit="$functions; $OPTARG"
 		;;
 	--tag-name-filter)
 		filter_tag_name="$OPTARG"
@@ -196,6 +203,9 @@ do
 	esac
 done < "$tempdir"/backup-refs
 
+ORIG_GIT_DIR="$GIT_DIR"
+ORIG_GIT_WORK_TREE="$GIT_WORK_TREE"
+ORIG_GIT_INDEX_FILE="$GIT_INDEX_FILE"
 export GIT_DIR GIT_WORK_TREE=.
 
 # These refs should be updated if their heads were rewritten
@@ -413,4 +423,12 @@ echo
 test $count -gt 0 && echo "These refs were rewritten:"
 git show-ref | grep ^"$orig_namespace"
 
+unset GIT_DIR GIT_WORK_TREE GIT_INDEX_FILE
+test -z "$ORIG_GIT_DIR" || GIT_DIR="$ORIG_GIT_DIR" && export GIT_DIR
+test -z "$ORIG_GIT_WORK_TREE" || GIT_WORK_TREE="$ORIG_GIT_WORK_TREE" &&
+	export GIT_WORK_TREE
+test -z "$ORIG_GIT_INDEX_FILE" || GIT_INDEX_FILE="$ORIG_GIT_INDEX_FILE" &&
+	export GIT_INDEX_FILE
+git read-tree -u -m HEAD
+
 exit $ret