#  Copyright 2021 Northern.tech AS
#  This file is part of CFEngine 3 - written and maintained by Northern.tech AS.
#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License as published by the
#  Free Software Foundation; version 3.
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
# To the extent this program is licensed as part of the Enterprise
# versions of Cfengine, the applicable Commercial Open Source License
# (COSL) may apply to this file if you as a licensee so wish it. See
# included file COSL.txt.
########################################################
#
# Copy and edit convergently
#
########################################################
body common control
{
  bundlesequence => { "example" };
  version => "1.2.3";
}

########################################################
bundle agent example
{
  vars:
    "source" string => "/tmp";
    "dest" string => "/tmp";

  files:
    "/$(dest)/staging-file"
      comment => "Copy from source to buffer",
      copy_from => cp("$(source)/source-template"),
      classes => satisfied("copy_ok");

    copy_ok::
      "/$(dest)/final-file"
        comment => "Build a file template and expand keys",
        edit_line => myedits("/$(dest)/staging-file"),
        edit_defaults => empty;
}

#########################################################
body copy_from cp(from)
{
  source => "$(from)";
  compare => "mtime";
  type_check => "true";
}

########################################################
bundle edit_line myedits(f)
{
  insert_lines:
    "$(f)"
      comment => "Populate empty file",
      insert_type => "file";

  replace_patterns:
    "TEMPLATE_HOST_KEY"
      comment => "Replace a place-marker with the name of this host",
      replace_with => rp("$(sys.host)");
}

########################################################
body replace_with rp(x)
{
  replace_value => "$(x)";
  occurrences => "all";
}

#########################################################
body classes satisfied(x)
{
  promise_repaired => { "$(x)" };
  persist_time => "0";
}

#######################################################
body edit_defaults empty
{
  empty_file_before_editing => "true";
}
