Add 'git fast-export', the sister of 'git fast-import'

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

diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index ffcc408ee5217d7a8f6179a0404ffe387e0dab0f..674a25d27e50b421e516e8ca6e1190d04e323e9c 100755 (executable)
--- 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>] \
@@ -92,10 +94,11 @@ 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 ||
+       git diff-index --cached --quiet HEAD -- ||
        die "Cannot rewrite branch(es) with a dirty working directory."
 
 tempdir=.git-rewrite
@@ -155,7 +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"