#!/bin/sh
# -*- mode: sh; tab-width: 8; coding: utf-8-unix -*-
#  pkuczynski/parse_yaml.sh

prog=$( basename $0 .bash )
ROLE=base

# FixMe: lists should be space delineated not comma
# Read YAML file from Bash script
# Credits: https://gist.github.com/pkuczynski/8665367
# Updated to support single quotes
parse_yaml() {
   local prefix
   local depth
   local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
   [ "$#" -gt 1 ] &&  prefix=$2 || prefix=""
   [ "$#" -gt 2 ] &&  depth=$3 || depth=""

   sed -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
       -ne "s|^\($s\)\($w\)$s:$s'\(.*\)'$s\$|\1$fs\2$fs\3|p" \
        -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" $1 |
   awk -F$fs '{
      indent = length($1)/2;
      vname[indent] = $2;
      for (i in vname) {if (i > indent) {delete vname[i]}}
      if (length($3) > 0) {
         vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("'$depth'")}
         printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
      }
   }'
}
if [ -x /usr/bin/basename ] && [ $( basename -- $0 ) = 'yaml_to_bash2.bash' -o $( basename -- $0 ) = 'parse_yaml2.sh' ] ; then
    parse_yaml "$@"
  fi