Bachef - Chef like bash DSL

bachef.sh

abort() {
  >&2 echo $@
  exit 1
}

declare_resources() {
  for r in $@; do
    eval ${r}'() { echo "['${r}']=${1:?}"; }'
  done
}

_cp()  { echo "  - cp $@"; }
change_mode()  { echo "  - chmod $@"; }
change_owner() { echo "  - chown $@"; }
change_group() { echo "  - chgrp $@"; }

remote_file() {
  target="$1"
  shift
  declare -A params='('"$@"')'
  required_params="source"
  optional_params="mode owner group"

  echo "remote_file[${target}]"

  for p in $required_params; do
    test -z ${params[$p]} && abort "no ${p} parameter"
  done
  _cp "${params[source]}" "${target}"

  for p in $optional_params; do
    val=${params[${p}]}
    test -z $val && continue
    change_${p} "$val" "$target"
  done
}
declare_resources source mode owner group

test.sh

#!/bin/bash

source 'bachef.sh'

remote_file '/etc/nginx/nginx.conf' $(
  source 'templates/nginx.conf'
  mode '755'
)

remote_file '/etc/ssh/sshd_config' $(
  source 'templates/nginx.conf'
  mode '700'
  owner 'root'
  group 'root'
)