Parse YAML into shell variables using shyaml

config.yaml

---
name: 'Max Mustermann'
database:
  host: 'localhost'
  database: 'mydb'

parse_yaml.sh

#!/bin/sh

export PYTHONIOENCODING="utf_8"

parse_yaml() {
      cat "$1" | shyaml keys |
      while read -r key; do
            local t
            t=$(cat "$1" | shyaml get-type "$key")
            case "$t" in
                  struct)
                        parse_struct "$1" "$2" "$key"
                        ;;
                  sequence)
                        ;;
                  *)
                        set_val "$1" "$2" "$key"
                        ;;
            esac
      done
}

parse_struct() {
      cat "$1" | shyaml keys "$3" |
      while read -r key; do
            local t
            t=$(cat "$1" | shyaml get-type "$3.$key")
            case "$t" in
                  struct)
                        parse_struct "$1" "$2" "$3.$key"
                        ;;
                  sequence)
                        ;;
                  *)
                        set_val "$1" "$2" "$3.$key"
                        ;;
            esac
      done
}

set_val() {
      local var
      var=$(echo "$2_$3" | sed -e "s/\./_/g")
      local val
      val=$(cat "$1" | shyaml get-value "$3")
      printf "%s=\"%s\"\n" "$var" "$val"
}

test_yaml.sh

#!/bin/sh

# include parse_yaml function
. "$(dirname "$0")"/parse_yaml.sh

# read yaml file
eval $(parse_yaml config.yaml "CONFIG")

# access yaml content
echo $CONFIG_name
echo $CONFIG_database_host

sequences not implemented yet.
should work with sh/dash also.
quite slow but works