X-Git-Url: https://git.slaskete.net/einar-bin/blobdiff_plain/20bbdb7d638345f922e870ea5ebe576ff71659c0..c36f76c10b8506263e3c9c2635ec0dbae73b5b28:/imgurgame.bash

diff --git a/imgurgame.bash b/imgurgame.bash
index 66bbe4e..a30b02d 100755
--- a/imgurgame.bash
+++ b/imgurgame.bash
@@ -5,17 +5,21 @@ readonly BROWSER="google-chrome"
 
 # Create a random imgur url that may or may not be valid
 imgururl() {
-  # 1/3% chance for length of 5, 6 or 7 length string
-  STRLN=$((5 + ${RANDOM} % 3))
-  local ID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${STRLN} | head -n 1)
+  # 1/3 chance for length of 5, 6 or 7 length string
+  STRLN=$((5 + RANDOM % 3))
+  local ID
+  # don't nag about useless cat, this is more readable
+  # shellcheck disable=2002
+  ID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${STRLN} | head -n 1)
   echo "http://i.imgur.com/${ID}.jpg"
 }
 
 # Test if we found a valid URL
 testimgur() {
   local URL=${1}
-  local RESULT=$(curl -s -o /dev/null -I -w "%{http_code}" ${URL})
-  if [[ ${RESULT} == 200 ]]; then
+  local RESULT
+  RESULT=$(curl -s -o /dev/null -I -w "%{http_code}" "${URL}")
+  if [[ ${RESULT} == "200" ]]; then
     echo true
   else
     echo false
@@ -25,13 +29,14 @@ testimgur() {
 main() {
   local FAIL=0
   while true; do
-    local URL=$(imgururl)
-    if [[ $(testimgur ${URL}) == "true" ]]; then
+    local URL
+    URL=$(imgururl)
+    if [[ $(testimgur "${URL}") == "true" ]]; then
       echo "Found ${URL} after ${FAIL} failed tries"
-      ${BROWSER} ${URL} > /dev/null 2>&1
+      ${BROWSER} "${URL}" > /dev/null 2>&1
       local FAIL=0
     else
-      FAIL=$(( ${FAIL}+1 ))
+      ((FAIL++))
     fi
   done
 }