On Thu, 2009-09-10 at 16:42 +0100, Bryan Ross wrote:
> Unfortunately, I can't seem to find any way of inserting arbitrary
> strings using augeas. I tried the 'insert' command, but after some
> reading I understand now that ins/insert is only meant for controlling
> where a parameter should be put in the file.
Comments for most files[1] show up as nodes with label '#comment' and a
value that contains the comment without the leading '#[ \t]*'.
Therefore, to add a comment, you need to first create a '#comment' node
and then set it to whatever you want the comment to be.
> Here's a simplified version of a (broken) sysctl define. I know why
> this doesn't work - it's just to give an idea of what I'd like to get
> working!
>
> define sysctl::config ($value, $comment) {
> augeas { "sysctl_$name":
> context => "/files/etc/sysctl.conf",
> changes => [
> "set $name $value",
> "insert '# ${comment}' before $name",
> ],
> onlyif => "get $name != $value",
> }
> }
Almost ;) What you want for changes is
changes => [
"set $name $value",
"insert #comment before $name",
"set #comment[last()] 'Look Ma, a comment'"
]
David
[1] There are some inconsistencies that we are gradually fixing; the
lens for sysctl.conf gets it right.
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