flush_host_cache.sh, flush_query_cache.sh: support parallel installations.

flush_host_cache.sh

@@ -3,6 +3,8 @@
 working_dir="$(dirname $(realpath $0))"
 conf_file="${working_dir}/conf/mysql_credetials.conf"
 
+tmp_log_file="$(mktemp)"
+
 #LOGGING=true
 LOGGING=false
 
@@ -11,6 +13,27 @@ LOGGING=false
 # --- Some functions
 # -------------
 
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -f $tmp_log_file
+   blank_line
+   exit $1
+}
+
+
+echononl(){
+   if $terminal ; then
+      echo X\\c > /tmp/shprompt$$
+      if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+         echo -e -n "$*\\c" 1>&2
+      else
+         echo -e -n "$*" 1>&2
+      fi
+      rm /tmp/shprompt$$
+   fi
+}
+
 fatal(){
    echo ""
    if $terminal ; then
@@ -34,6 +57,65 @@ fatal(){
    clean_up 1
 }
 
+error(){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mError\033[m ]: $*"
+   else
+      echo "   [ Error ]: $*"
+   fi
+   echo ""
+}
+
+warn (){
+   if $terminal ; then
+      echo ""
+      echo -e "   [ \033[33m\033[1mWarning\033[m ]: $*"
+      echo ""
+   else
+      echo "   [ Warning ]: $*"
+   fi
+}
+
+info (){
+   if $terminal ; then
+      echo ""
+      echo -e "   [ \033[32m\033[1mInfo\033[m ]: $*"
+      echo ""
+   else
+      echo "   [ Info ]: $*"
+   fi
+}
+
+echo_ok() {
+   if $terminal ; then
+      echo -e "\033[80G[ \033[32mok\033[m ]"
+   fi
+}
+echo_failed(){
+   if $terminal ; then
+      echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
+   fi
+}
+echo_skipped() {
+   if $terminal ; then
+      echo -e "\033[80G[ \033[37mskipped\033[m ]"
+   fi
+}
+
+trim() {
+    local var="$*"
+    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
+    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
+    echo -n "$var"
+}
+
+blank_line() {
+   if $terminal ; then
+      echo ""
+   fi
+}
+
 detect_mysql_version () {
 
    _MYSQLD_VERSION="$(mysqld -V 2>/dev/null)"
@@ -87,16 +169,23 @@ fi
 #-----------------------------
 #---------------------------------------
 
+blank_line
+echononl "   Loading configuration settings from $(basename ${conf_file}).."
 if [[ -f "$conf_file" ]]; then
-   source "$conf_file"
+   source "$conf_file" > $tmp_log_file 2>&1
+   if [[ $? -eq 0 ]]; then
+      echo_ok
+   else
+      echo_failed
+      fatal "$(cat $tmp_log_file)"
+   fi
+else
+   echo_skipped
+   if $terminal ;then
+      warn "No Configuration File found. Loading defaults.."
+   fi
 fi
 
-#[[ -z "$mysql_credential_args" ]] && mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
-
-
-if $LOGGING ;then
-   echo -e "\n[ `date` ] Going to flush host cache.."
-fi
 
 if [[ -z "$mysql_credential_args" ]]; then
 	
@@ -135,14 +224,30 @@ if [[ -z "$mysql_credential_args" ]]; then
 fi
 
 
-# Flush host cache
-#
-$mysqladmin $mysql_credential_args flush-hosts
-
-[[ $? -gt 0 ]] && echo -e "\t[ Error ]: Flushing host cache failed !!"
-
-if $LOGGING ;then
-    echo -e "\n[ `date` ] End flushing host cache"
+if [[ ${#mysql_credential_args_arr[@]} -eq 0 ]]; then
+   mysql_credential_args_arr[0]="default:$mysql_credential_args"
 fi
 
-exit 0
+blank_line
+declare -i index_arr=0
+while [[ $index_arr -lt ${#mysql_credential_args_arr[@]} ]] ; do
+
+   IFS=':' read -a _val_arr <<< "${mysql_credential_args_arr[$index_arr]}"
+   mysql_version="${_val_arr[0]}"
+   mysql_credential_args="${_val_arr[1]}"
+
+   echononl "   [ ${mysql_version} ]: Flush host cache.."
+   $mysqladmin $mysql_credential_args flush-hosts
+   if [[ $? -eq 0 ]]; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $tmp_log_file)"
+   fi
+
+   (( index_arr++ ))
+
+done
+
+
+clean_up 0