diff options
Diffstat (limited to 'git-filter-branch.sh')
| -rwxr-xr-x | git-filter-branch.sh | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/git-filter-branch.sh b/git-filter-branch.sh index a324cf0..81392ad 100755 --- a/git-filter-branch.sh +++ b/git-filter-branch.sh @@ -232,11 +232,11 @@ mkdir ../map || die "Could not create map/ directory" case "$filter_subdir" in "") git rev-list --reverse --topo-order --default HEAD \ - --parents "$@" + --parents --simplify-merges "$@" ;; *) git rev-list --reverse --topo-order --default HEAD \ - --parents "$@" -- "$filter_subdir" + --parents --simplify-merges "$@" -- "$filter_subdir" esac > ../revs || die "Could not get the commits" commits=$(wc -l <../revs | tr -d " ") @@ -317,24 +317,20 @@ done <../revs # In case of a subdirectory filter, it is possible that a specified head # is not in the set of rewritten commits, because it was pruned by the -# revision walker. Fix it by mapping these heads to the next rewritten -# ancestor(s), i.e. the boundaries in the set of rewritten commits. +# revision walker. Fix it by mapping these heads to the unique nearest +# ancestor that survived the pruning. -# NEEDSWORK: we should sort the unmapped refs topologically first -while read ref -do - sha1=$(git rev-parse "$ref"^0) - test -f "$workdir"/../map/$sha1 && continue - # Assign the boundarie(s) in the set of rewritten commits - # as the replacement commit(s). - # (This would look a bit nicer if --not --stdin worked.) - for p in $( (cd "$workdir"/../map; ls | sed "s/^/^/") | - git rev-list $ref --boundary --stdin | - sed -n "s/^-//p") +if test "$filter_subdir" +then + while read ref do - map $p >> "$workdir"/../map/$sha1 - done -done < "$tempdir"/heads + sha1=$(git rev-parse "$ref"^0) + test -f "$workdir"/../map/$sha1 && continue + ancestor=$(git rev-list --simplify-merges -1 \ + $ref -- "$filter_subdir") + test "$ancestor" && echo $(map $ancestor) >> "$workdir"/../map/$sha1 + done < "$tempdir"/heads +fi # Finally update the refs @@ -416,15 +412,17 @@ if [ "$filter_tag_name" ]; then echo "$ref -> $new_ref ($sha1 -> $new_sha1)" if [ "$type" = "tag" ]; then - new_sha1=$(git cat-file tag "$ref" | + new_sha1=$( ( printf 'object %s\ntype commit\ntag %s\n' \ + "$new_sha1" "$new_ref" + git cat-file tag "$ref" | sed -n \ -e "1,/^$/{ - s/^object .*/object $new_sha1/ - s/^type .*/type commit/ - s/^tag .*/tag $new_ref/ + /^object /d + /^type /d + /^tag /d }" \ -e '/^-----BEGIN PGP SIGNATURE-----/q' \ - -e 'p' | + -e 'p' ) | git mktag) || die "Could not create new tag object for $ref" if git cat-file tag "$ref" | \ |