From 8465c2bdf84c4e7836d33032d541ead75456e686 Mon Sep 17 00:00:00 2001
From: William Melody <hi@williammelody.com>
Date: Sat, 12 Sep 2015 13:19:17 -0700
Subject: [PATCH] Exit with "Not found" message on failed search in
 `enable`/`disable`

When the search string in `enable` or `disable` is not found, exit the
program and provide feedback rather than silently failing.
---
 hosts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hosts b/hosts
index 3eb6a2d..b726772 100755
--- a/hosts
+++ b/hosts
@@ -725,6 +725,10 @@ disable() {
       sed -n "s/^\([^#]*${search_term}.*\)$/\1/p" "${HOSTS_PATH}"
     )
     _debug printf "disable() \$targets: %s\n" "$targets"
+    if [[ -z "${targets}" ]]
+    then
+      _die printf "Not found: %s\n" "${search_term}"
+    fi
 
     printf "Disabling:\n%s\n" "${targets}"
 
@@ -788,6 +792,12 @@ enable() {
 
     local targets
     targets=$(sed -n "${target_regex}p" "${HOSTS_PATH}")
+        _debug printf "enable() \$targets: %s\n" "$targets"
+    if [[ -z "${targets}" ]]
+    then
+      _die printf "Not found: %s\n" "${search_term}"
+    fi
+
     printf "Enabling:\n%s\n" "${targets}"
 
     # -i '' - in place edit. BSD sed requires extension argument, for GNU