[--parent-filter <command>] [--msg-filter <command>]
[--commit-filter <command>] [--tag-name-filter <command>]
[--subdirectory-filter <directory>] [--original <namespace>]
- [-d <directory>] [-f | --force]
+ [-d <directory>] [-f | --force] [--state-branch <branch>]
[--] [<rev-list options>...]"
OPTIONS_SPEC=
filter_commit=
filter_tag_name=
filter_subdir=
+state_branch=
orig_namespace=refs/original/
force=
prune_empty=
--original)
orig_namespace=$(expr "$OPTARG/" : '\(.*[^/]\)/*$')/
;;
+ --state-branch)
+ state_branch="$OPTARG"
+ ;;
*)
usage
;;
ORIG_GIT_DIR="$GIT_DIR"
ORIG_GIT_WORK_TREE="$GIT_WORK_TREE"
ORIG_GIT_INDEX_FILE="$GIT_INDEX_FILE"
+ORIG_GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME"
+ORIG_GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL"
+ORIG_GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE"
+ORIG_GIT_COMMITTER_NAME="$GIT_COMMITTER_NAME"
+ORIG_GIT_COMMITTER_EMAIL="$GIT_COMMITTER_EMAIL"
+ORIG_GIT_COMMITTER_DATE="$GIT_COMMITTER_DATE"
+
GIT_WORK_TREE=.
export GIT_DIR GIT_WORK_TREE
# map old->new commit ids for rewriting parents
mkdir ../map || die "Could not create map/ directory"
+if test -n "$state_branch"
+then
+ state_commit=$(git rev-parse --no-flags --revs-only "$state_branch")
+ if test -n "$state_commit"
+ then
+ echo "Populating map from $state_branch ($state_commit)" 1>&2
+ perl -e'open(MAP, "-|", "git show $ARGV[0]:filter.map") or die;
+ while (<MAP>) {
+ m/(.*):(.*)/ or die;
+ open F, ">../map/$1" or die;
+ print F "$2" or die;
+ close(F) or die;
+ }
+ close(MAP) or die;' "$state_commit" \
+ || die "Unable to load state from $state_branch:filter.map"
+ else
+ echo "Branch $state_branch does not exist. Will create" 1>&2
+ fi
+fi
+
# we need "--" only if there are no path arguments in $@
nonrevs=$(git rev-parse --no-revs "$@") || exit
if test -z "$nonrevs"
}' \
-e '/^-----BEGIN PGP SIGNATURE-----/q' \
-e 'p' ) |
- git mktag) ||
+ git hash-object -t tag -w --stdin) ||
die "Could not create new tag object for $ref"
if git cat-file tag "$ref" | \
sane_grep '^-----BEGIN PGP SIGNATURE-----' >/dev/null 2>&1
done
fi
-cd "$orig_dir"
-rm -rf "$tempdir"
-
-trap - 0
-
unset GIT_DIR GIT_WORK_TREE GIT_INDEX_FILE
+unset GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
+unset GIT_COMMITTER_NAME GIT_COMMITTER_EMAIL GIT_COMMITTER_DATE
test -z "$ORIG_GIT_DIR" || {
GIT_DIR="$ORIG_GIT_DIR" && export GIT_DIR
}
GIT_INDEX_FILE="$ORIG_GIT_INDEX_FILE" &&
export GIT_INDEX_FILE
}
+test -z "$ORIG_GIT_AUTHOR_NAME" || {
+ GIT_AUTHOR_NAME="$ORIG_GIT_AUTHOR_NAME" &&
+ export GIT_AUTHOR_NAME
+}
+test -z "$ORIG_GIT_AUTHOR_EMAIL" || {
+ GIT_AUTHOR_EMAIL="$ORIG_GIT_AUTHOR_EMAIL" &&
+ export GIT_AUTHOR_EMAIL
+}
+test -z "$ORIG_GIT_AUTHOR_DATE" || {
+ GIT_AUTHOR_DATE="$ORIG_GIT_AUTHOR_DATE" &&
+ export GIT_AUTHOR_DATE
+}
+test -z "$ORIG_GIT_COMMITTER_NAME" || {
+ GIT_COMMITTER_NAME="$ORIG_GIT_COMMITTER_NAME" &&
+ export GIT_COMMITTER_NAME
+}
+test -z "$ORIG_GIT_COMMITTER_EMAIL" || {
+ GIT_COMMITTER_EMAIL="$ORIG_GIT_COMMITTER_EMAIL" &&
+ export GIT_COMMITTER_EMAIL
+}
+test -z "$ORIG_GIT_COMMITTER_DATE" || {
+ GIT_COMMITTER_DATE="$ORIG_GIT_COMMITTER_DATE" &&
+ export GIT_COMMITTER_DATE
+}
+
+if test -n "$state_branch"
+then
+ echo "Saving rewrite state to $state_branch" 1>&2
+ state_blob=$(
+ perl -e'opendir D, "../map" or die;
+ open H, "|-", "git hash-object -w --stdin" or die;
+ foreach (sort readdir(D)) {
+ next if m/^\.\.?$/;
+ open F, "<../map/$_" or die;
+ chomp($f = <F>);
+ print H "$_:$f\n" or die;
+ }
+ close(H) or die;' || die "Unable to save state")
+ state_tree=$(/bin/echo -e "100644 blob $state_blob\tfilter.map" | git mktree)
+ if test -n "$state_commit"
+ then
+ state_commit=$(/bin/echo "Sync" | git commit-tree "$state_tree" -p "$state_commit")
+ else
+ state_commit=$(/bin/echo "Sync" | git commit-tree "$state_tree" )
+ fi
+ git update-ref "$state_branch" "$state_commit"
+fi
+
+cd "$orig_dir"
+rm -rf "$tempdir"
+
+trap - 0
if [ "$(is_bare_repository)" = false ]; then
git read-tree -u -m HEAD || exit