Bug#264241: Some corrections regardings statements in this bug

[Hilmar Preusse <hille42@web.de>]

On 11.08.04 Adrian Bunk (bunk@fs.tum.de) wrote:

Hi,

> Some corrections regarding statements in this bug ("postrm assumes 
> mktexlsr is available").
> 
> <--  snip  -->
> 
> Ryan Murray:
> > You can't assume that any of your dependencies are available in
> > your postrm script, so you need to handle the case where mktexlsr
> > has already been removed.
> 
> mktexlsr is in tetex-bin.
> 
> tetex-extra depends on tetex-bin.
> 
> Section 7.2. of your policy states:
> 
> <--  snip  -->
> ...
>           The `Depends' field should also be used if the `postinst',
>           `prerm' or `postrm' scripts require the package to be present in
>           order to run.  Note, however, that the `postrm' cannot rely on
>           any non-essential packages to be present during the `purge'
>           phase.
> ...
> <--  snip  -->
> 
> Could you explain your statement which exactly contradicts your policy 
> 
So, what are you trying to tell me? As far as I understand you tell
me, that this bug is not a bug.

> (note that the tetex-extra postinst does nothing during purge)?
> 
mktexlsr is intended to be called in case of upgrade, remove or purge.
Hence we don't check $1, but call it unconditionally.

> Can you reproduce the bug?
> If yes, does it help to let /var/lib/dpkg/info/tetex-extra.postrm start 
> with
>   #!/bin/bash
> ?
> 
> <--  snip  -->
> 
> Hilmar Preusse:
> 
> > The man page of bash tells us, that it should be sufficient to do so
> > if /bin/sh points to /bin/bash. I guess we have to remove the bashism
> > in that script and are done. Correct?
> 
> 
> If the problem is a bashism, the trivial solution is to let the script 
> start with
>   #!/bin/bash
> instead of
>   #!/bin/sh
> 
> This is 100% correct since bash is Essential and /bin/bash is therefore 
> garuanteed to be always available.
> 
> <--  snip  -->
> 
The more convenient solution could be to remove to bashism. Should
not be that hard in this special case. I'm not sure, if command is a
bashism or if it is available in dash too.
I'd like to see another tetex-base package RSN and I'd like to have
this bug closed too.

Thanks,
  H. 
-- 
sigmentation fault