Add exit_code, bg_jobs plugins.

Minor fix to vcs.sh

plugins/bg_jobs.sh

@@ -0,0 +1,22 @@
+function wish_bg_jobs_start() {
+	return 0
+}
+
+function wish_bg_jobs_end() {
+	return 0
+}
+
+function wish_bg_jobs_set_colors() {
+	WISH_BG_JOBS_FG=${WISH_BG_JOBS_FG:-$WISH_DEFAULT_FG}
+	WISH_BG_JOBS_BG=${WISH_BG_JOBS_BG:-$WISH_DEFAULT_BG}
+	WISH_BG_JOBS_SUFFIX=${WISH_BG_JOBS_SUFFIX:-&}
+}
+
+function wish_bg_jobs_main() {
+	local x=$(jobs -p | wc -l)
+	if [[ $x == 0 ]]; then
+		wish_append $WISH_BG_JOBS_BG $WISH_BG_JOBS_FG ""
+	else
+		wish_append $WISH_BG_JOBS_BG $WISH_BG_JOBS_FG " $x$WISH_BG_JOBS_SUFFIX "
+	fi
+}

plugins/exit_code.sh

@@ -0,0 +1,20 @@
+function wish_exit_code_start() {
+	return 0
+}
+
+function wish_exit_code_end() {
+	return 0
+}
+
+function wish_exit_code_set_colors() {
+	WISH_EXIT_CODE_FG=${WISH_EXIT_CODE_FG:-$WISH_DEFAULT_FG}
+	WISH_EXIT_CODE_BG=${WISH_EXIT_CODE_BG:-$WISH_DEFAULT_BG}
+}
+
+function wish_exit_code_main() {
+	if [[ $1 == 0 ]]; then
+		wish_append $WISH_EXIT_CODE_BG $WISH_EXIT_CODE_FG ""
+	else
+		wish_append $WISH_EXIT_CODE_BG $WISH_EXIT_CODE_FG $1
+	fi
+}

plugins/vcs.sh

@@ -26,7 +26,7 @@ function wish_vcs_main() {
 
 		local add=$(echo "$op" | awk '{a += $1} END {print a}')
 		local del=$(echo "$op" | awk '{d += $2} END {print d}')
-		if [[ $add != 0 ]] && [[ $del != 0 ]]; then
+		if [[ $add != 0 ]] || [[ $del != 0 ]]; then
 			git="$git+$add -$del "
 		fi
 		wish_append $WISH_VCS_BG $WISH_VCS_FG "$git"