Merge branch 'jh/filter-empty-contents' into maint

diff --git a/git-stash.sh b/git-stash.sh
index d4cf818be9488f1b94fdf4766a8f73db6bfd1029..0fddd5424b3846aaa6d9189841dae13c764468cd 100755 (executable)
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -219,6 +219,9 @@ save_stash () {
                -a|--all)
                        untracked=all
                        ;;
+               --help)
+                       show_help
+                       ;;
                --)
                        shift
                        break
@@ -301,11 +304,17 @@ list_stash () {
 }
 
 show_stash () {
+       ALLOW_UNKNOWN_FLAGS=t
        assert_stash_like "$@"
 
        git diff ${FLAGS:---stat} $b_commit $w_commit
 }
 
+show_help () {
+       exec git help stash
+       exit 1
+}
+
 #
 # Parses the remaining options looking for flags and
 # at most one revision defaulting to ${ref_stash}@{0}
@@ -332,13 +341,14 @@ show_stash () {
 #
 #   GIT_QUIET is set to t if -q is specified
 #   INDEX_OPTION is set to --index if --index is specified.
-#   FLAGS is set to the remaining flags
+#   FLAGS is set to the remaining flags (if allowed)
 #
 # dies if:
 #   * too many revisions specified
 #   * no revision is specified and there is no stash stack
 #   * a revision is specified which cannot be resolve to a SHA1
 #   * a non-existent stash reference is specified
+#   * unknown flags were set and ALLOW_UNKNOWN_FLAGS is not "t"
 #
 
 parse_flags_and_rev()
@@ -371,7 +381,12 @@ parse_flags_and_rev()
                        --index)
                                INDEX_OPTION=--index
                        ;;
+                       --help)
+                               show_help
+                       ;;
                        -*)
+                               test "$ALLOW_UNKNOWN_FLAGS" = t ||
+                                       die "$(eval_gettext "unknown option: \$opt")"
                                FLAGS="${FLAGS}${FLAGS:+ }$opt"
                        ;;
                esac
@@ -442,6 +457,8 @@ apply_stash () {
        assert_stash_like "$@"
 
        git update-index -q --refresh || die "$(gettext "unable to refresh index")"
+       git diff-index --cached --quiet --ignore-submodules HEAD -- ||
+               die "$(gettext "Cannot apply stash: Your index contains uncommitted changes.")"
 
        # current index state
        c_tree=$(git write-tree) ||