transform getopts of kexec to be short and clear

zsh/functions.zsh

@@ -300,31 +300,29 @@ function helm() {
 function kexec {
   RAN=true
   NAMESPACE=default
-  finalopts=()
+  function usage ()
-  while [[ $@ != "" ]] do
+  {
-    case $1 in
+    echo "Usage :  $0 [options] [--]
-      --context=*)
+    Options:
-        KCONTEXT="${i#*=}"
+    -C            kubectl context
-        shift
+    -R            not randomly select pod
-        ;;
+    -n NAMESPACE
-      -R)
+    -p PROJECT
-        RAN=false
+    -h            Display this message"
-        shift
+  }
-        ;;
+  while getopts ":hvC:Rp:" opt
-      -p)
+  do
-        PROJECT="$2"
+    case $opt in
-        shift; shift
+    C)  KCONTEXT=$OPTARG  ;;
-        ;;
+    R)  RAN=false         ;;
-      -n)
+    h)  usage; return 0   ;;
-        NAMESPACE="$2"
+    n)  NAMESPACE=$OPTARG ;;
-        shift; shift
+    p)  PROJECT=$OPTARG   ;;
-        ;;
+    *)  echo -e "\n  Option does not exist : $OPTARG\n"
-      *)
+        usage; return 1   ;;
-        finalopts+=($1)
-        shift
-        ;;
     esac
   done
+  shift $(($OPTIND-1))
 
   RUNNING_POD_INDEX=-1
   while true; do
@@ -373,8 +371,8 @@ function kexec {
     fi
   done
   if [[ $RUNNING_POD_INDEX != -1 ]]; then
-    echo "kubectl -it -n $NAMESPACE exec $RUNNING_PODS[$RUNNING_POD_INDEX] -- $finalopts"
+    echo "kubectl -it -n $NAMESPACE exec $RUNNING_PODS[$RUNNING_POD_INDEX] -- $@"
-    kubectl -it -n $NAMESPACE exec $RUNNING_PODS[$RUNNING_POD_INDEX] -- $finalopts
+    kubectl -it -n $NAMESPACE exec $RUNNING_PODS[$RUNNING_POD_INDEX] -- $@
   fi
 }