From 416410fc6ddb0d9a0e10b89b009c4758bb1fabc2 Mon Sep 17 00:00:00 2001
From: Bradley Cicenas <bradley@vektor.nyc>
Date: Sun, 12 Nov 2017 13:32:52 +0000
Subject: [PATCH 1/3] add level-based color output

---
 tinylogger.bash | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/tinylogger.bash b/tinylogger.bash
index ae36cc8..d2abe3c 100644
--- a/tinylogger.bash
+++ b/tinylogger.bash
@@ -24,15 +24,31 @@
 # Author: Nagarjuna Kumarappan <nagarjuna.412@gmail.com>
 
 # defaults
-LOGGER_FMT=${LOGGER_FMT:="%Y-%m-%d %H:%M:%S"}
 LOGGER_LVL=${LOGGER_LVL:="info"}
+LOGGER_FMT=${LOGGER_FMT:="%Y-%m-%d %H:%M:%S"}
+LOGGER_COLOR=${LOGGER_COLOR:="1"}
+
+_tlog_levels=(error warn info debug)
+_tlog_colors=('\033[0;31m' '\033[0;33m' '\033[0;32m' '\033[0;36m')
+
+function _print_lvl {
+  idx=$1
+  nc='\033[0m'
+  lvlname=${_tlog_levels[$idx]^^}
+
+  if (("$LOGGER_COLOR")); then
+    printf "${_tlog_colors[$idx]}${lvlname}${nc}"
+  else
+    printf "${lvlname}"
+  fi
+}
 
 function tlog {
     action=$1 && shift
     case $action in 
-        debug)  [[ $LOGGER_LVL =~ debug ]]           && echo "$( date "+${LOGGER_FMT}" ) - DEBUG - $@" 1>&2 ;;
-        info)   [[ $LOGGER_LVL =~ debug|info ]]      && echo "$( date "+${LOGGER_FMT}" ) - INFO - $@" 1>&2  ;;
-        warn)   [[ $LOGGER_LVL =~ debug|info|warn ]] && echo "$( date "+${LOGGER_FMT}" ) - WARN - $@" 1>&2  ;;
-        error)  [[ ! $LOGGER_LVL =~ none ]]          && echo "$( date "+${LOGGER_FMT}" ) - ERROR - $@" 1>&2 ;;
+        debug)  [[ $LOGGER_LVL =~ debug ]]           && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 3) - $@" 1>&2 ;;
+        info)   [[ $LOGGER_LVL =~ debug|info ]]      && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 2) - $@" 1>&2  ;;
+        warn)   [[ $LOGGER_LVL =~ debug|info|warn ]] && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 1) - $@" 1>&2  ;;
+        error)  [[ ! $LOGGER_LVL =~ none ]]          && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 0) - $@" 1>&2 ;;
     esac
     true; }

From 263a7156d193d7d9d7c0df54f3123e5a99f5f7e7 Mon Sep 17 00:00:00 2001
From: Bradley Cicenas <bradley@vektor.nyc>
Date: Sun, 12 Nov 2017 13:36:15 +0000
Subject: [PATCH 2/3] use common line prefix function

---
 tinylogger.bash | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/tinylogger.bash b/tinylogger.bash
index d2abe3c..f31e618 100644
--- a/tinylogger.bash
+++ b/tinylogger.bash
@@ -31,24 +31,25 @@ LOGGER_COLOR=${LOGGER_COLOR:="1"}
 _tlog_levels=(error warn info debug)
 _tlog_colors=('\033[0;31m' '\033[0;33m' '\033[0;32m' '\033[0;36m')
 
-function _print_lvl {
+function _tlog_head {
   idx=$1
   nc='\033[0m'
   lvlname=${_tlog_levels[$idx]^^}
 
   if (("$LOGGER_COLOR")); then
-    printf "${_tlog_colors[$idx]}${lvlname}${nc}"
+    printf "$(date "+${LOGGER_FMT}") - ${_tlog_colors[$idx]}${lvlname}${nc}"
   else
-    printf "${lvlname}"
+    printf "$(date "+${LOGGER_FMT}") - ${lvlname}"
   fi
 }
 
 function tlog {
-    action=$1 && shift
-    case $action in 
-        debug)  [[ $LOGGER_LVL =~ debug ]]           && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 3) - $@" 1>&2 ;;
-        info)   [[ $LOGGER_LVL =~ debug|info ]]      && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 2) - $@" 1>&2  ;;
-        warn)   [[ $LOGGER_LVL =~ debug|info|warn ]] && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 1) - $@" 1>&2  ;;
-        error)  [[ ! $LOGGER_LVL =~ none ]]          && echo "$( date "+${LOGGER_FMT}" ) - $(_print_lvl 0) - $@" 1>&2 ;;
-    esac
-    true; }
+  action=$1 && shift
+  case $action in
+    debug)  [[ $LOGGER_LVL =~ debug ]]           && echo "$(_tlog_head 3) - $@" 1>&2 ;;
+    info)   [[ $LOGGER_LVL =~ debug|info ]]      && echo "$(_tlog_head 2) - $@" 1>&2  ;;
+    warn)   [[ $LOGGER_LVL =~ debug|info|warn ]] && echo "$(_tlog_head 1) - $@" 1>&2  ;;
+    error)  [[ ! $LOGGER_LVL =~ none ]]          && echo "$(_tlog_head 0) - $@" 1>&2 ;;
+  esac
+  true;
+}

From fbd14888322e905d99a873b206f5721c3321cdae Mon Sep 17 00:00:00 2001
From: Bradley Cicenas <bradley@vektor.nyc>
Date: Mon, 11 Dec 2017 01:13:40 +0000
Subject: [PATCH 3/3] add color section to README

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index b77ec26..7c56f2f 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,9 @@ You can control the logging level while calling a script by setting the `LOGGER_
 
 You can set `LOGGER_LVL=none` to disable all logging.
 
+## Color
+By default, log output is colorized by level. This behavior can be disabled by setting `LOGGER_COLOR=0`
+
 ## Timestamp customisation
 
 Underneath, the `date` command is used to display the timestamp. Simply set the `LOGGER_FMT` to any valid format supported by `date`.