Re: editfiles problem - revisited - Still nobody having an idea what goes wrong?

[Tod Oace]

On Sep 3, 2004, at 13:12, Sven Mueller wrote:

> Still nobody having an idea of how to solve my problem?

How about something like this:

{ /etc/passwd
        BeginGroupIfNoSuchLine "test::::::"
                DeleteLinesMatching "^test:.*$"
                Append "test::::::"
        EndGroup
        DefineClasses "restart_whatever"
}

-Tod


> In short my problem was that I _need_ to restart a program if I 
> changed it's config file. But for various reasons, I have to avoid 
> restarting it, if I didn't change it.
>
> The only way I have come up with is using a temporary file, and with 
> various shellcommands I shouldn't even have available on the machine 
> in question (diff among them).
>
> I am desperately looking for a solution which is maintainable even 
> when (potentially) updating hundreds of lines in a file.
>
> Please also see my additions inserted between the quotes below:
>
> > Josef Wolf [u] wrote on 02/09/2004 14:25:
> > > On Thu, Sep 02, 2004 at 01:52:12PM +0200, Sven Mueller wrote:
> > >
> > >
> > >
> > > > test:x:1:1::/tmp/:/bin/bash
> > > > test2:x:2:2::/tmp/:/bin/bash
> > > >
> > > > Here is what cfagent.conf looks like:
> > > >
> > > > control:
> > > >       actionsequence = ( editfiles )
> > > >
> > > > editfiles:
> > > >       { /tmp/passwd
> > > >               Backup "Off"
> > > >               SplitOn ":"
> > > >               ReplaceLinesMatchingField 1
> > > >               SetLine "test::::::"
> > > >               AppendIfNoLineMatching "ThisLine"
> > > >       }
> > >
> > > AFAICS, the ThisLine notation works only in a ForEachLineIn loop.
>
> Hmm, this didn't make a difference. Also, the documentation says:
> 'If "ThisLine" is given as the argument, the current value of the line 
> buffer is assumed.'
> The documentation of "ForEachLineIn" says:
> 'The result is like using SetLine for each line in the file'
> And while the SetLine documentation says nothing about a line buffer 
> (but ForEachLineIn doesn't either), what I gather from the above two 
> snippets is that 'AppendIfNoLineMatching "ThisLine"' should do exactly 
> what I expected. But it doesn't.
>
> >> You need to give a regexp to AppendIfNoLineMatching. Further,
> >> ReplaceLinesMatching requires either a ForEachLineIn loop or a 
> SetLine.
> > > So please try:
> > >
> > >         { /tmp/passwd
> > >                 Backup "Off"
> > >                 SplitOn ":"
> > >                 SetLine "test::::::"
> > >                 ReplaceLinesMatchingField 1
> > >                 AppendIfNoLineMatching "test:.*"
> > >         }
> > Changing it this way still doesn't replace an existing 
> > "test:x:1:1::/tmp/:/bin/bash" line with the "test::::::" line.
> > It doesn't seem to matter wether the ReplaceLinesMatchingField 
> > instruction is given before or after SetLine. It doesn't do what the 
> > documentation suggests in either case.
>
> I'm really out of wits on this problem.
>
> cu,
> sven
>
>
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--
Tod Oace, Intel Corporation <tod@intel.com>