Allow to exclude symlinking of files base on git exclude patterns

    HOMESHICK_IGNORE environment variable with comma-separated
    exclude patterns will add entries to .git/info/exclude

    Excluded files will be ignored during symlink step, but still
    can be checked into the repository

lib/commands/clone.sh

@@ -34,6 +34,7 @@ function clone {
 		success
 	fi
         [ -n "$HOMESHICK_USE_CASTLE_ROOT" ] && set_castle_root_mode "$cloned_castle_name"
+        [ -n "$HOMESHICK_IGNORE" ] && echo "$HOMESHICK_IGNORE" | tr ',' '\n' >> "$repo_path/.git/info/exclude"
 	return $EX_SUCCESS
 }
 

lib/commands/link.sh

@@ -98,6 +98,8 @@ function get_repo_files {
 			# (used when there are newlines in the path)
 			path=${path/#\"/}
 			path=${path/%\"/}
+			local excluded=$(cd "$root" && git ls-files -i --exclude-from=.git/info/exclude "$path")
+			[ -n "$excluded" ] && continue;
 			if [ -n "$search" ];then
 				# Check if home/ is a submodule
 				[[ $path == 'home' ]] && continue