Initial commit

image_files/fsroot/usr/local/bin/script_utils.sh

@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# Utility functions for shell script
+
+
+# Very simple 'logger' for shell script support JSON output
+# To turn on JSON output, set env LOG_IN_JSON_FMT=1
+# ---------------------
+logging_info () {
+    msg="${1}"
+    logging_msg "INFO" "\${msg}"
+}
+
+logging_warning () {
+    msg="${1}"
+    logging_msg "WARNING" "\${msg}"
+}
+
+logging_error () {
+    msg="${1}"
+    logging_msg "ERROR" "\${msg}"
+}
+
+logging_msg () {
+    eval level="${1}"
+    eval msg="${2}"
+    #TODO, handle 4 env or detect if it is k8s
+    if [ ! -z "$LOG_IN_JSON_FMT" ]; then
+        echo_json_log "INFO" "\${msg}"
+    else
+        # echo "$ENV - $msg"
+        echo "$msg"
+    fi  
+}
+
+echo_json_log () {
+    eval level="$1"
+    eval msg="${2}"
+
+    # Handle double quote
+    msg="${msg//[\"]/\\\"}"
+    # Handle mutliline
+    msg=$(echo "$msg" | sed -e '1h;2,$H;$!d;g' -re 's/([^\n]*)\n([^\n]*)/\1\\n\2/g' )
+
+    #Replace %N with %3N for milliseconds, %6N for micro-seconds...
+    # now=`date '+%FT%T.%3N%:z'`
+    now=`date '+%FT%T%z'`
+    echo "{\"time\": \"${now}\", \"level\": \"${level}\", \"message\": \"${msg}\"}"
+}