Updates to reformat script.

Don't change files if they're unmodified.

Indicate which files have changed and a summary.
Reviewed-by: Rich Salz <rsalz@openssl.org>

diff --git a/util/openssl-format-source b/util/openssl-format-source
index 4e901474347ad6ba3d5a6ef6c97d0187c2224adf..6380a100b456016a953f22e4b49b3d38bf24d513 100755 (executable)
--- a/util/openssl-format-source
+++ b/util/openssl-format-source
@@ -30,6 +30,7 @@ VERBOSE=false
 DONT=false
 STOPARGS=false
 COMMENTS=false
+CHANGED=false
 DEBUG=""
 
 # for this exercise, we want to force the openssl style, so we roll
@@ -82,10 +83,6 @@ do
       fi
     fi
 
-    if [ "$VERBOSE" = "true" ]; then
-      echo "$j"
-    fi
-
     if [ "$DONT" = "false" ]; then
       tmp=$(mktemp /tmp/indent.XXXXXX)
       trap 'rm -f "$tmp"' HUP INT TERM EXIT
@@ -138,7 +135,18 @@ do
          else
            expand "$j" | indent $INDENT_ARGS > "$tmp"
          fi;
-         mv "$tmp" "$j"
+         if cmp -s "$tmp" "$j"; then
+           if [ "$VERBOSE" = "true" ]; then
+             echo "$j unchanged"
+           fi
+           rm "$tmp"
+         else
+           if [ "$VERBOSE" = "true" ]; then
+             echo "$j changed"
+           fi
+           CHANGED=true
+           mv "$tmp" "$j"
+         fi
          ;;
       esac
     fi
@@ -146,3 +154,11 @@ do
 done
 
 
+if [ "$VERBOSE" = "true" ]; then
+  echo
+  if [ "$CHANGED" = "true" ]; then
+    echo "SOURCE WAS MODIFIED"
+  else
+    echo "SOURCE WAS NOT MODIFIED"
+  fi
+fi