[augeas-devel] Re: Multiline values in INI Files

[Raphaël Pinson]

On Fri, Aug 29, 2008 at 9:53 PM, Free Ekanayaka <free at 64studio.com> wrote:

> |--==> On Fri, 29 Aug 2008 18:00:15 +0000, David Lutterkort <
> lutter at redhat.com> said:
>
>  DL> On Fri, 2008-08-29 at 13:14 -0400, Nate Foster wrote:
>  >>The final q-lens would accept keys like this in the source
>  >>
>  >>"This is\n   a key\n    with wacky indentation"
>  >>
>  >>map them to views with no indentation like this
>  >>
>  >>"This is\nakey with\nwacky indentation"
>  >>
>  >>and produce sources with standard indentation, maybe like this?
>  >>
>  >>"This is\n  akey with\n  wacky indentation"
>  >>
>  >>Is that what you want?
>
>   DL> The problem with this is that Augeas tries very hard to keep changes
>  DL> minimal, i.e. as close to what a human would change armed with only
> vi;
>  DL> using q-lenses would mean that if I modify an unrelated part of the
>  DL> file, the indentation of those multiline entries might change, too,
> even
>  DL> though they haven't really been touched.
>
> By the way I find that the fstab lens shows this behaviour. For
> example if I run
>
> (echo set /files/etc/fstab/1/spec foo; echo save)| augtool -r fakeroot/
>
> against the fstab below and then diff the two versions I get:
>
> --- /etc/fstab  2008-08-28 11:44:24.000000000 +0200
> +++ fakeroot/etc/fstab  2008-08-29 21:44:41.000000000 +0200
> @@ -1,10 +1,10 @@
>  # /etc/fstab: static file system information.
>  #
>  # <file system> <mount point>   <type>  <options>       <dump>  <pass>
> -proc            /proc           proc    defaults        0       0
> +foo            /proc           proc    defaults        0 0
>  # /dev/sda1
> -UUID=f3789373-bcf5-4f8c-92d7-dae09ca156af /               ext3
>  relatime,errors=remount-ro 0       1
> +UUID=f3789373-bcf5-4f8c-92d7-dae09ca156af /               ext3
>  relatime,errors=remount-ro   0 1
>  # /dev/sda3
> -UUID=cfa5ec0e-71c4-4133-b477-8d114a9cfdfd /home           ext3    relatime
>        0       2
> +UUID=cfa5ec0e-71c4-4133-b477-8d114a9cfdfd /home           ext3    relatime
>     0 2
>  # /dev/sda8
> -UUID=e28ca2e9-465f-46d7-af0d-9ee9b3836b93 none            swap    sw
>        0       0
> +UUID=e28ca2e9-465f-46d7-af0d-9ee9b3836b93 none            swap    sw   0 0
>
> Notice that parts unrelated to my change got actually modified.
>


I think this is because fstab uses seq instead of label... not sure though.



Raphael
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