[augeas-devel] insert comment before edited line?

[Dominic Cleal]

On 04/12/12 14:28, Pat Riehecky wrote:
> Hello,
> 
> I'm trying to put a comment in right above a line before I change it.  
> I'm going to be performing some edits on systems I do not administer.  
> Leaving behind reasons why some things were changed should help explain 
> things for the real administrators in the future.
> 
> In particular I've tried:
> 
> ins 99999 before /files/etc/httpd/conf/httpd.conf/*[arg =~ 
> regexp('["]*/var/www/html["]*')]/*[arg = 'Indexes']
> set /files/etc/httpd/conf/httpd.conf/99999 "# removed Indexes from Options"
> 
> but that does not seem to be right.

Comments are usually represented with a node whose label is "#comment".
 If you do a "print" from within augtool you should see some other
comments in this format.  Try something like:

ins #comment before /files/etc/httpd/conf/httpd.conf/*[arg =~
regexp('["]*/var/www/html["]*')]/*[arg = 'Indexes']
set /files/etc/httpd/conf/httpd.conf/*[arg =~
regexp('["]*/var/www/html["]*')]/#comment[following-sibling::*[1][arg =
'Indexes']] "removed Indexes from Options"

The set expression's been expanded to find the newly created #comment
node that is preceding the node with [arg='Indexes'].  Note also the "#
" has been removed from the node value since the #comment will handle that.

-- 
Dominic Cleal
Red Hat Engineering