tree-walk: convert get_tree_entry_follow_symlinks to object_id

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

diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 1b7e4b2cdbdf36e090c4b1f531dcc48222d8f8b1..64f21547c1ab99ef3ad98d57fe0fbadff9621838 100755 (executable)
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -251,8 +251,18 @@ done < "$tempdir"/backup-refs
 
 # The refs should be updated if their heads were rewritten
 git rev-parse --no-flags --revs-only --symbolic-full-name \
-       --default HEAD "$@" > "$tempdir"/raw-heads || exit
-sed -e '/^^/d' "$tempdir"/raw-heads >"$tempdir"/heads
+       --default HEAD "$@" > "$tempdir"/raw-refs || exit
+while read ref
+do
+       case "$ref" in ^?*) continue ;; esac
+
+       if git rev-parse --verify "$ref"^0 >/dev/null 2>&1
+       then
+               echo "$ref"
+       else
+               warn "WARNING: not rewriting '$ref' (not a committish)"
+       fi
+done >"$tempdir"/heads <"$tempdir"/raw-refs
 
 test -s "$tempdir"/heads ||
        die "You must specify a ref to rewrite."
@@ -310,7 +320,7 @@ git rev-list --reverse --topo-order --default HEAD \
        die "Could not get the commits"
 commits=$(wc -l <../revs | tr -d " ")
 
-test $commits -eq 0 && die "Found nothing to rewrite"
+test $commits -eq 0 && die_with_status 2 "Found nothing to rewrite"
 
 # Rewrite the commits
 report_progress ()
@@ -627,12 +637,12 @@ then
                                print H "$_:$f\n" or die;
                        }
                        close(H) or die;' || die "Unable to save state")
-       state_tree=$(/bin/echo -e "100644 blob $state_blob\tfilter.map" | git mktree)
+       state_tree=$(printf '100644 blob %s\tfilter.map\n' "$state_blob" | git mktree)
        if test -n "$state_commit"
        then
-               state_commit=$(/bin/echo "Sync" | git commit-tree "$state_tree" -p "$state_commit")
+               state_commit=$(echo "Sync" | git commit-tree "$state_tree" -p "$state_commit")
        else
-               state_commit=$(/bin/echo "Sync" | git commit-tree "$state_tree" )
+               state_commit=$(echo "Sync" | git commit-tree "$state_tree" )
        fi
        git update-ref "$state_branch" "$state_commit"
 fi