Forum: Cfengine Help
Subject: Re: Cfengine Help: Re: Strange behaviour with insert_lines
Author: babudro
Link to topic: https://cfengine.com/forum/read.php?3,18791,18794#msg-18794
Daniel V. Klein Wrote:
-------------------------------------------------------
> Look at "empty_file_before_editing". You need to
Yes, that's what I am using. From the COPBL I am using this:
body edit_defaults empty
{
empty_file_before_editing => "true";
edit_backup => "false";
max_file_size => "300000";
}
Now that I understand my original question about why the repeated lines were
not inserted, my confusion has moved on to the preserve_block feature you and
Mark both mentioned: Why does perserve_block re-write the file every time if I
empty it? Why would I want to use it (i.e., what does it do for me)? Maybe if
one of you could give a short example of using preserve_block that would help.
I tried these two techniques:
insert_lines:
"line 1
line 2
line 3",
insert_type => "preserve_text";
and also
insert_lines:
"line 1" insert_type => "preserve_text";
"line 2" insert_type => "preserve_text";
"line 3" insert_type => "preserve_text";
... but either way, if I emptied the file first it always re-wrote it. (And
the second method really didn't work at all; duplicated lines were ignored as
if "preserve_block" wasn't there, so I presume the first method is the correct
one.)
Thanks for the help.
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