Use "-M" instead of "-C" for "git diff" and "git status"

The "C" in "-C" may stand for "Cool", but it's also pretty slow, since
right now it leaves all unmodified files to be tested even if there are
no new files at all.  That just ends up being unacceptably slow for big
projects, especially if it's not all in the cache.

diff --git a/git-diff-script b/git-diff-script
index d70e8b9..673853b 100755 (executable)
--- a/git-diff-script
+++ b/git-diff-script
@@ -3,13 +3,13 @@ rev=($(git-rev-parse --revs-only "$@"))
 flags=($(git-rev-parse --no-revs "$@"))
 case "${#rev[*]}" in
 0)
-       git-diff-files -p "$@";;
+       git-diff-files -M -p "$@";;
 1)
-       git-diff-cache -p "$@";;
+       git-diff-cache -M -p "$@";;
 2)
        begin=$(echo "${rev[1]}" | tr -d '^')
        end="${rev[0]}"
-       git-diff-tree -p $flags $begin $end;;
+       git-diff-tree -M -p $flags $begin $end;;
 *)
        echo "I don't understand"
        exit 1;;

diff --git a/git-status-script b/git-status-script
index f91bb55..7d47fde 100755 (executable)
--- a/git-status-script
+++ b/git-status-script
@@ -27,7 +27,7 @@ report () {
 }
 
 git-update-cache --refresh >& /dev/null
-git-diff-cache -B -C --cached HEAD | sed 's/^://' | report "Updated but not checked in" "will commit"
+git-diff-cache -M --cached HEAD | sed 's/^://' | report "Updated but not checked in" "will commit"
 committable="$?"
 git-diff-files | sed 's/^://' | report "Changed but not updated" "use git-update-cache to mark for commit"
 if [ "$committable" == "0" ]