describe: when failing, tell the user about options that work

diff --git a/git-rebase.sh b/git-rebase.sh
index 18bc6946cfa592c11cf7499b1c1ff9a6cb378b26..6ec155cf03c98f2e075f298039037d0e099311b1 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -333,6 +333,9 @@ do
                        ;;
                esac
                ;;
+       --ignore-whitespace)
+               git_am_opt="$git_am_opt $1"
+               ;;
        --committer-date-is-author-date|--ignore-date)
                git_am_opt="$git_am_opt $1"
                force_rebase=t
@@ -382,8 +385,10 @@ else
 fi
 
 # The tree must be really really clean.
-if ! git update-index --ignore-submodules --refresh; then
-       die "cannot rebase: you have unstaged changes"
+if ! git update-index --ignore-submodules --refresh > /dev/null; then
+       echo >&2 "cannot rebase: you have unstaged changes"
+       git diff-files --name-status -r --ignore-submodules -- >&2
+       exit 1
 fi
 diff=$(git diff-index --cached --name-status -r --ignore-submodules HEAD --)
 case "$diff" in