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# 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 cfengine3
body common control
{
bundlesequence => { "test" };
}
bundle agent test
{
vars:
"a" slist => { 1,2,3,"x" };
"b" slist => { "x" };
# normal usage
"diff_between_a_and_b" slist => difference(a, b);
"diff_between_a_and_b_str" string => join(",", diff_between_a_and_b);
# NOTE: advanced usage!
"mylist1" slist => { "a", "b" };
"mylist2" slist => { "a", "b" };
"$(mylist1)_str" string => join(",", $(mylist1));
# Here we're going to really call difference(a,a) then difference(a,b) then difference(b,a) then difference(b,b)
# We create a new variable for each difference!!!
"diff_$(mylist1)_$(mylist2)" slist => difference($(mylist1), $(mylist2));
"diff_$(mylist1)_$(mylist2)_str" string => join(",", "diff_$(mylist1)_$(mylist2)");
reports:
# normal usage
"The difference between lists a and b is '$(diff_between_a_and_b_str)'";
# NOTE: advanced usage results!
"The difference of list '$($(mylist1)_str)' with '$($(mylist2)_str)' is '$(diff_$(mylist1)_$(mylist2)_str)'";
}
#+end_src
###############################################################################
#+begin_src example_output
#@ ```
#@ R: The difference between lists a and b is '1,2,3'
#@ R: The difference of list '1,2,3,x' with '1,2,3,x' is ''
#@ R: The difference of list '1,2,3,x' with 'x' is '1,2,3'
#@ R: The difference of list 'x' with '1,2,3,x' is ''
#@ R: The difference of list 'x' with 'x' is ''
#@ ```
#+end_src
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