*: rewrite some files to nuxsh.

Signed-off-by: Tony Tkacik <tonydamage@gmail.com>

inc/nux/log.inc.sh

@@ -0,0 +1,52 @@
+## ##Logging
+
+# Color for message levels
+NC_LOG_color_info=$NC_LightGray
+NC_LOG_color_error=$NC_LightRed
+NC_LOG_color_warning=$NC_Yellow
+NC_LOG_color_debug=$NC_White
+
+NC_LOG_current=3
+
+NC_LOG_id_none=0
+NC_LOG_id_error=1
+NC_LOG_id_warning=2
+NC_LOG_id_info=3
+NC_LOG_id_debug=4
+NC_LOG_id_trace=5
+
+##
+## NUX Script environment provides basic logging capabilities.
+##
+## Currently there are 5 log levels supported (in order of detail):
+##   error
+##   warning
+##   info
+##   debug
+##   trace
+##
+## nux.log:: <level> <message>
+##     Outputs log message to *STDERR*. LOG messages are filtered out based on
+##     level. Use *nux.log.level* to specify which messages should be displayed.
+##
+##
+function nux.log {
+  local level=$1
+  local message=$2
+  local color=NC_LOG_color_$level
+  local level_num=NC_LOG_id_$level
+  shift;
+  if [  ${!level_num} -le $NC_LOG_current  ]; then
+    echo -e "${!color}[$level]$NC_No $*$NC_No" >&2
+  fi
+}
+
+
+## nux.log.level:: <level>
+##     Sets maximum level of details to be logged.
+##
+function  nux.log.level {
+  local level=$1
+  local level_id=NC_LOG_id_$level
+  NC_LOG_current=${!level_id}
+}