{
if test $# = 3 && test "$1" = $(git rev-parse "$3^{tree}"); then
map "$3"
+ elif test $# = 1 && test "$1" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904; then
+ :
else
git commit-tree "$@"
fi
finish_ident COMMITTER
}
-USAGE="[--env-filter <command>] [--tree-filter <command>]
- [--index-filter <command>] [--parent-filter <command>]
- [--msg-filter <command>] [--commit-filter <command>]
- [--tag-name-filter <command>] [--subdirectory-filter <directory>]
- [--original <namespace>] [-d <directory>] [-f | --force]
- [<rev-list options>...]"
+USAGE="[--setup <command>] [--subdirectory-filter <directory>] [--env-filter <command>]
+ [--tree-filter <command>] [--index-filter <command>]
+ [--parent-filter <command>] [--msg-filter <command>]
+ [--commit-filter <command>] [--tag-name-filter <command>]
+ [--original <namespace>]
+ [-d <directory>] [-f | --force] [--state-branch <branch>]
+ [--] [<rev-list options>...]"
OPTIONS_SPEC=
. git-sh-setup
fi
tempdir=.git-rewrite
+filter_setup=
filter_env=
filter_tree=
filter_index=
filter_commit=
filter_tag_name=
filter_subdir=
+state_branch=
orig_namespace=refs/original/
force=
prune_empty=
-d)
tempdir="$OPTARG"
;;
+ --setup)
+ filter_setup="$OPTARG"
+ ;;
+ --subdirectory-filter)
+ filter_subdir="$OPTARG"
+ remap_to_ancestor=t
+ ;;
--env-filter)
filter_env="$OPTARG"
;;
--tag-name-filter)
filter_tag_name="$OPTARG"
;;
- --subdirectory-filter)
- filter_subdir="$OPTARG"
- remap_to_ancestor=t
- ;;
--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="$GIT_COMMITTER_DATE"
+
GIT_WORK_TREE=.
export GIT_DIR GIT_WORK_TREE
sed -e '/^^/d' "$tempdir"/raw-heads >"$tempdir"/heads
test -s "$tempdir"/heads ||
- die "Which ref do you want to rewrite?"
+ die "You must specify a ref to rewrite."
GIT_INDEX_FILE="$(pwd)/../index"
export GIT_INDEX_FILE
# map old->new commit ids for rewriting parents
mkdir ../map || die "Could not create map/ directory"
+if test -n "$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"
test $commits -eq 0 && die "Found nothing to rewrite"
# Rewrite the commits
+report_progress ()
+{
+ if test -n "$progress" &&
+ test $git_filter_branch__commit_count -gt $next_sample_at
+ then
+ count=$git_filter_branch__commit_count
+
+ now=$(date +%s)
+ elapsed=$(($now - $start_timestamp))
+ remaining=$(( ($commits - $count) * $elapsed / $count ))
+ if test $elapsed -gt 0
+ then
+ next_sample_at=$(( ($elapsed + 1) * $count / $elapsed ))
+ else
+ next_sample_at=$(($next_sample_at + 1))
+ fi
+ progress=" ($elapsed seconds passed, remaining $remaining predicted)"
+ fi
+ printf "\rRewrite $commit ($count/$commits)$progress "
+}
git_filter_branch__commit_count=0
+
+progress= start_timestamp=
+if date '+%s' 2>/dev/null | grep -q '^[0-9][0-9]*$'
+then
+ next_sample_at=0
+ progress="dummy to ensure this is not empty"
+ start_timestamp=$(date '+%s')
+fi
+
+if test -n "$filter_index" ||
+ test -n "$filter_tree" ||
+ test -n "$filter_subdir"
+then
+ need_index=t
+else
+ need_index=
+fi
+
+eval "$filter_setup" < /dev/null ||
+ die "filter setup failed: $filter_setup"
+
while read commit parents; do
git_filter_branch__commit_count=$(($git_filter_branch__commit_count+1))
- printf "\rRewrite $commit ($git_filter_branch__commit_count/$commits)"
+
+ report_progress
case "$filter_subdir" in
"")
- GIT_ALLOW_NULL_SHA1=1 git read-tree -i -m $commit
+ if test -n "$need_index"
+ then
+ GIT_ALLOW_NULL_SHA1=1 git read-tree -i -m $commit
+ fi
;;
*)
# The commit may not have the subdirectory at all
} <../commit |
eval "$filter_msg" > ../message ||
die "msg filter failed: $filter_msg"
+
+ if test -n "$need_index"
+ then
+ tree=$(git write-tree)
+ else
+ tree=$(git rev-parse "$commit^{tree}")
+ fi
workdir=$workdir @SHELL_PATH@ -c "$filter_commit" "git commit-tree" \
- $(git write-tree) $parentstr < ../message > ../map/$commit ||
+ "$tree" $parentstr < ../message > ../map/$commit ||
die "could not write rewritten commit"
done <../revs
}' \
-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