file_hash.cf

#  Copyright 2019 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.

#+begin_src prep
#@ ```
#@ echo 1 > /tmp/1
#@ echo 2 > /tmp/2
#@ echo 3 > /tmp/3
#@ ```
#+end_src
###############################################################################
#+begin_src cfengine3
body common control
{
      bundlesequence => { "example" };
}

bundle agent example

{
  vars:

      "md5" string => file_hash("/tmp/1","md5");
      "sha256" string => file_hash("/tmp/2","sha256");
      "sha384" string => hash("/tmp/3","sha384");
      "sha512" string => hash("/tmp/3","sha512");

  reports:

      "'1\n' hashed to: md5 $(md5)";
      "'2\n' hashed to: sha256 $(sha256)";
      "'3\n' hashed to: sha384 $(sha384)";
      "'3\n' hashed to: sha512 $(sha512)";

}
#+end_src
###############################################################################
#+begin_src example_output
#@ ```
#@ R: '1\n' hashed to: md5 b026324c6904b2a9cb4b88d6d61c81d1
#@ R: '2\n' hashed to: sha256 53c234e5e8472b6ac51c1ae1cab3fe06fad053beb8ebfd8977b010655bfdd3c3
#@ R: '3\n' hashed to: sha384 54f7379844b41bf513c0557a7195ca96a8ac90d0f8cc87d3607ef7ab593a7c61732759387afaabaf72ca2c0bd599373e
#@ R: '3\n' hashed to: sha512 48b3c46b24db82059b5c87603066cf8d2165837d66e268286feb384644c808c06edf99aeaca0d879f4ee6ec70ebfaa0b98d5b77c12f7c0a68de3f7302dec6e21
#@ ```
#+end_src