Thank you Mark for the prompt answer,
This helps - now it is just twofold duplication -- not as much as before
:-)
So is there a real reason why something with described functionality
of AssignValue wasn't introduced into cfengine? Probably be I'm missing
something obvious...
Thank you once again
On Wed, Feb 23, 2005 at 08:35:44AM +0100, Mark Burgess wrote:
> I just did this on a system.
> { /etc/postfix/main.cf
> # Edit the lines if they are there (required patch 2.1.14 )
> ReplaceAll "^mydomain =.*" With "mydomain = iu.hio.no"
> ReplaceAll "^relayhost =.*" With "relayhost = [nexus.iu.hio.no]"
> # Check the lines are there at all
> AppendIfNoSuchLine "relayhost = [nexus.iu.hio.no]"
> AppendIfNoSuchLine "mydomain = iu.hio.no"
> }
> I had to add a little finesse/patch to the detection of non-convergent
> operation to make this work. If you get the latest snapshot version, it
> should worlk for you..
> Mark
> On Wed, 2005-02-23 at 02:14 -0500, Yaroslav Halchenko wrote:
> > Dear cfengine-admirers
> > Am I missing the point or cfengine[2] is missing I would say
> > most-often-used function which can be named like
> > AssignValue 'X FS' Z
> > which I would use whenever I want change/add_a_line_with a right
> > hand side of any assignment like
> > X FS Y
> > to
> > X FS Z
> > where X is a name
> > FS is field separator (usually is ' *= *' or just ' *')
> > and Y and Z are values
> > The absense of such function and the fact that ReplaceAll doesn't quite
> > fit due to possible recursion, led people to device monsters like
> > http://www.shipyard.com.au/shipyard/articles/sysadmin/cfengine-configfiles.py
> > where for a simple obioius rule like
> > AssignValue '^LogLevel *' 'INFO'
> > is presented as
> > BeginGroupIfNoLineMatching '^LogLevel.*'
> > Append 'LogLevel'
> > EndGroup
> > ResetSearch 1
> > LocateLineMatching '^LogLevel.*'
> > BeginGroupIfNoMatch '^LogLevel INFO$'
> > ReplaceLineWith 'LogLevel INFO'
> > EndGroup
> > which shows you how much duplication is necessary to handle such
> > situation in a right way.
> > Is there a way to fix the situation or describe me where I'm wrong?
> > Thank you all in advance
--
Yaroslav Halchenko
Research Assistant, Psychology Department, Rutgers
Office (973) 353-5440 x263 Fax (973) 353-1171
Ph.D. Student CS Dept. NJIT
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