Forum: CFEngine Help
Subject: Re: How to add to line with field_edits?
Author: bbomgardner
Link to topic: https://cfengine.com/forum/read.php?3,22981,22990#msg-22990
You need to let cfengine know that uri is the field and the rest are subfields.
Its confusing because a space is the deliminator between those two and between
each of the subfields.
This won't be exactly what you want (the regex is generic so the file must
contain 'uri ' already), but see if this makes sense:
body common control {
bundlesequence => { "test" };
}
bundle agent test {
vars:
"serverlist" slist => { "server1", "server2", "server3" };
files:
"/tmp/blah"
handle => "test_file",
comment => "This is my favorite file.",
create => "true",
edit_line => modify_value_parameters("uri"," ","2","
","$(serverlist)","alphanum");
}
bundle edit_line modify_value_parameters(o,delim,field,vsep,v,act) {
# Use this bundle to make precision edits to a list of parameters in a value
set for a specific option.
# Parameters
# option,field deliminator,field to edit (starts at 1),subfield
deliminator,subfield value,action (prepend, append, delete, set, alphanum)
#
# Example
# edit_line => modify_value_parameters("VARIABLE","\"","1"," ","four","append");
#
# Applied to this line
# VARIABLE="one two three"
# becomes
# VARIABLE="one two three four"
vars:
"val" slist => { @(v) };
field_edits:
"\s*$(o)\s*$(delim).*",
comment => "Modify list of parameters in value for a specific option in
file.",
edit_field =>
tabular_edit("$(delim)","$(field)","$(vsep)","$(val)","$(act)");
}
#########################################################
body edit_field tabular_edit(split,col,vsep,newval,method)
{
field_separator => "$(split)";
select_field => "$(col)";
value_separator => "$(vsep)";
field_value => "$(newval)";
field_operation => "$(method)";
extend_fields => "true";
allow_blank_fields => "true";
}
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