On 8/3/11 3:59 PM, [email protected] wrote:
> Forum: CFEngine Help
> Subject: How to add to line with field_edits?
> Author: marc
> Link to topic: https://cfengine.com/forum/read.php?3,22981,22981#msg-22981
>
> Hi List
>
> I have a file with a line like this:
>
> uri server1 server2 server3
>
>
> What I wanna do is, to check if the line is there. And if it is, check that
> is has the right fields.
>
You probably want a combination of these two bundles. For a usage
example see below... Looking at these I can see they can use some
tweaking, but it should get you started.
# Appends a line if the regex supplied did not match.
# files:
# "myfile.txt"
# edit_line =>
append_line_if_no_match(".*foo.*","foobar bas");
bundle edit_line append_line_if_no_match(regex,line) {
classes:
"regex_matched" expression =>
regline("^$(regex)$","$(edit.filename)");
insert_lines:
!regex_matched::
"$(line)"
comment => "Insert line if regex did not match";
}
# Special bundle that appends a subfield on the righthandside (rhs)
# for a specific lhs value (used in ncc.yum.cf a.o.)
bundle edit_line append_subfield(delim1,delim2,lhs,field,values) {
vars:
"vals"
comment => "List of subvalues for the rhs",
slist => { @(values) };
field_edits:
"$(lhs).*"
comment => "Append values to 'multi value rhs lists' (name =
val1:val2)",
edit_field =>
subcol("$(delim1)","$(delim2)","$(field)","$(vals)","alphanum");
}
###################
To use these do something along these lines:
"/etc/rpm/macros.nfs"
comment => "Yum needs to know about nfs mounts.",
classes => if_repaired("rpm_macros_fixed"),
create => "true",
edit_line =>
append_line_if_no_match(".*netsharedpath.*",'%_netsharedpath /ncc:/srv');
"/etc/rpm/macros.nfs"
comment => "Add some more nfs mounts to existing line",
classes => if_repaired("rpm_macros_fixed"),
edit_line => append_subfield(" ",":","%_netsharedpath ","2","/var/ftp");
--
Sjoerd Oostdijck RIPE Network Coordination Centre
RIPE NCC, IT Department Singel 258, Amsterdam, NL
http://www.ripe.net +31 20 535 4444
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