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Groups > comp.sys.acorn.misc > #2463

Re: SmartMenu - was: VRPC on a USB pen

From Martin Wuerthner <spamtrap@mw-software.com>
Newsgroups comp.sys.acorn.misc
Subject Re: SmartMenu - was: VRPC on a USB pen
Date 2011-11-12 11:44 +0100
Organization MW Software
Message-ID <28e6ef3052.martin@bach.planiverse.com> (permalink)
References (19 earlier) <mpro.lugo6k03g9do001k3.news@stevefryatt.org.uk> <54e52e3052.martin@blueyonder.co.uk> <4ebca885$0$2494$ba4acef3@reader.news.orange.fr> <ec25873052.martin@bach.planiverse.com> <4ebdc772$0$5663$ba4acef3@reader.news.orange.fr>

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In message <4ebdc772$0$5663$ba4acef3@reader.news.orange.fr>
          Rick Murray <heyrickmail-usenet@yahoo.co.uk> wrote:

> On 11/11/2011 16:40, Martin Wuerthner wrote:

>>> So what we need is a dependency-aware package manager [...]
>> Like the one we already have? When reading the remainder of your
>> posting I could not help wondering whether you had a look at the
>> package management solution that has been available for years.

> I am aware of RiscPkg. I was thinking aloud at something generic which
> is capable of resolving application requirements in a manner quite
> distinct to "bung it all into the archive, let the installer sort it out".

... which is not at all what RiscPkg does. Quite to the contrary. So, 
I cannot see in which point your thinking offers anything that RiscPkg 
does not.

> I did note in the help:
> --8<--------
>    As a safety measure, RiscPkg will not overwrite files that already
>    exist. Instead, it displays all conflicting pathnames in a window and
>    cancels the installation. This is most likely to happen for modules
>    and fonts. If you wish to proceed with the installation then you must
>    either delete the conflicting files or move them to another location.
>    (The latter course of action is recommended in case you wish to
>    revert.)
> --8<--------

> Which would imply that the package manager is not yet up to *upgrading*
> (with optional revert backup?) system resources - thus again requiring
> the user to potentially need understand the !Boot structure in order to
> delve in and delete/rename the module.

No, that is a misunderstanding. The whole point of RiscPkg *is* to 
upgrade system resources, and that is what it does.

What it does not do is overwrite files that are not yet managed by 
RiscPkg, which is what happens when you first introduce package 
management on your system, and that behaviour is quite a good idea. 
Once you allow RiscPkg to manage a specific system resource (by moving 
it away and repeating installation), it will do so and from then on 
upgrade it automatically.

Admittedly, the process of RiscPkg taking control of a given resource 
could be improved. Rather than aborting installation and requiring 
manual user action, RiscPkg should display a warning box asking the 
user for permission to take control of the given resource, and if 
permitted, should then move the existing file to a safe location 
itself rather than expecting the user to do it.

> Is the existent package manager capable of coping with *different*
> modules depending on OS version? And installing them into the correct
> place (as opposed to the fallback of dumping into !System.Modules and
> hoping)?

No, and it would be a very bad idea if it did because this is not how 
RISC OS works. Each module has exactly one correct place, which is 
independent of the OS version the machine happens to run, and the 
package manager can put it exactly there.

RISC OS itself offers the means of making applications load the 
correct module automatically depending on the system version. There is 
no need for the package manager to do anything about that.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

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Thread

VRPC on a USB pen druck <news@druck.freeuk.com> - 2011-10-29 16:33 +0100
  Re: VRPC on a USB pen David Pitt <pittdj@pittdj.co.uk> - 2011-10-29 16:52 +0100
    Re: VRPC on a USB pen Stuart <Spambin@argonet.co.uk> - 2011-10-29 18:12 +0100
    Re: VRPC on a USB pen patric <patric@invalid.net> - 2011-10-29 18:11 +0000
      Re: VRPC on a USB pen Steve Fryatt <news@stevefryatt.org.uk> - 2011-10-30 22:25 +0000
        Re: VRPC on a USB pen Folderol <folderol@ukfsn.org> - 2011-10-30 22:37 +0000
          Re: VRPC on a USB pen Theo Markettos <theom+news@chiark.greenend.org.uk> - 2011-10-31 01:00 +0000
        Re: VRPC on a USB pen Steve Fryatt <news@stevefryatt.org.uk> - 2011-10-30 22:36 +0000
        Re: VRPC on a USB pen Chris Hughes <news@noonehere.co.uk> - 2011-10-31 18:53 +0000
          Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-31 20:09 +0100
            Re: VRPC on a USB pen fwibbler <thedoctor@thedeathzone.free-online.co.uk> - 2011-11-01 11:20 +0000
              Re: VRPC on a USB pen Bob Latham <bob@sick-of-spam.invalid> - 2011-11-01 12:02 +0000
                Re: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-01 12:31 +0000
                Re: VRPC on a USB pen Martin Wuerthner <spamtrap@mw-software.com> - 2011-11-01 15:52 +0100
                Re: VRPC on a USB pen "Ste (news)" <steve@revi11.plus.com> - 2011-11-01 18:12 +0000
                Re: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-01 22:14 +0000
                Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-02 18:02 +0100
                Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-02 18:04 +0100
                Re: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-02 22:08 +0000
                Re: VRPC on a USB pen Steve Fryatt <news@stevefryatt.org.uk> - 2011-11-01 12:54 +0000
              Re: VRPC on a USB pen Stuart <Spambin@argonet.co.uk> - 2011-11-01 12:23 +0000
                Re: VRPC on a USB pen fwibbler <thedoctor@thedeathzone.free-online.co.uk> - 2011-11-01 16:47 +0000
              Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-01 21:06 +0100
            Re: VRPC on a USB pen Michael Gerbracht <nospam@cityweb.de> - 2011-11-04 17:12 +0000
              Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-04 20:00 +0100
                Re: VRPC on a USB pen Dave Symes <dave@triffid.co.uk> - 2011-11-04 20:36 +0000
                Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-05 06:20 +0100
                Re: VRPC on a USB pen Dave Symes <dave@triffid.co.uk> - 2011-11-05 06:24 +0000
                Re: VRPC on a USB pen Michael Gerbracht <nospam@cityweb.de> - 2011-11-05 16:19 +0000
                Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-05 17:54 +0100
                Re: VRPC on a USB pen Michael Gerbracht <nospam@cityweb.de> - 2011-11-06 16:37 +0000
                Re: VRPC on a USB pen Ron Briscoe <ron.briscoe@blueyonder.co.uk> - 2011-11-06 20:09 +0000
                Re: VRPC on a USB pen Michael Gerbracht <nospam@cityweb.de> - 2011-11-13 10:51 +0000
                Re: VRPC on a USB pen Russell Hafter News <see.sig@walkingingermany.invalid> - 2011-11-19 10:12 +0000
                Re: VRPC on a USB pen Ron Briscoe <ron.briscoe@blueyonder.co.uk> - 2011-11-05 21:44 +0000
                Re: VRPC on a USB pen Dr Peter Young <pnyoung@ormail.co.uk> - 2011-11-06 09:24 +0000
                Re: VRPC on a USB pen Ron Briscoe <ron.briscoe@blueyonder.co.uk> - 2011-11-06 19:59 +0000
                Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-07 04:04 +0100
                Re: VRPC on a USB pen cferris@freeRemoveuk.com.invalid - 2011-11-07 10:04 +0000
                Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-07 18:06 +0100
                Re: VRPC on a USB pen Dave Symes <dave@triffid.co.uk> - 2011-11-07 18:59 +0000
                Re: VRPC on a USB pen SG nws <nwsgrp@ntlworld.com> - 2011-11-07 19:24 +0000
                Re: VRPC on a USB pen Dave Symes <dave@triffid.co.uk> - 2011-11-07 21:25 +0000
                SmartMenu - was: VRPC on a USB pen David Pitt <pittdj@pittdj.co.uk> - 2011-11-07 05:33 +0000
                Re: SmartMenu - was: VRPC on a USB pen Dr Peter Young <pnyoung@ormail.co.uk> - 2011-11-08 21:54 +0000
                Re: SmartMenu - was: VRPC on a USB pen Doug Webb <doug.j.webb@btinternet.com> - 2011-11-08 22:11 +0000
                Re: SmartMenu - was: VRPC on a USB pen David Pitt <pittdj@pittdj.co.uk> - 2011-11-09 06:38 +0000
                Re: SmartMenu - was: VRPC on a USB pen David Pitt <pittdj@pittdj.co.uk> - 2011-11-09 06:20 +0000
                Re: SmartMenu - was: VRPC on a USB pen Richard Ashbery <basura@invalid.addr.uk> - 2011-11-09 13:29 +0000
                Re: SmartMenu - was: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-09 16:34 +0100
                Re: SmartMenu - was: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-09 16:59 +0000
                Re: SmartMenu - was: VRPC on a USB pen Richard Ashbery <basura@invalid.addr.uk> - 2011-11-09 19:40 +0000
                Re: SmartMenu - was: VRPC on a USB pen Chris Hughes <news@noonehere.co.uk> - 2011-11-09 21:45 +0000
                Re: SmartMenu - was: VRPC on a USB pen Dr Peter Young <pnyoung@ormail.co.uk> - 2011-11-09 14:56 +0000
                Re: SmartMenu - was: VRPC on a USB pen druck <news@druck.freeuk.com> - 2011-11-09 20:32 +0000
                Re: SmartMenu - was: VRPC on a USB pen Dr Peter Young <pnyoung@ormail.co.uk> - 2011-11-09 22:03 +0000
                Re: SmartMenu - was: VRPC on a USB pen druck <news@druck.org.uk> - 2011-11-09 22:32 +0000
                Re: SmartMenu - was: VRPC on a USB pen Steve Fryatt <news@stevefryatt.org.uk> - 2011-11-09 23:02 +0000
                Re: SmartMenu - was: VRPC on a USB pen Vince M Hudd <vinceh@softrock.co.uk> - 2011-11-10 15:44 +0000
                Re: SmartMenu - was: VRPC on a USB pen Steve Fryatt <news@stevefryatt.org.uk> - 2011-11-10 20:13 +0000
                Re: SmartMenu - was: VRPC on a USB pen Martin Bazley <martin.bazley@blueyonder.co.uk> - 2011-11-10 23:36 +0000
                Re: SmartMenu - was: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-11 05:45 +0100
                Re: SmartMenu - was: VRPC on a USB pen Martin Wuerthner <spamtrap@mw-software.com> - 2011-11-11 16:40 +0100
                Re: SmartMenu - was: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-12 02:10 +0100
                Re: SmartMenu - was: VRPC on a USB pen Matthew Phillips <spam2011m@yahoo.co.uk> - 2011-11-12 07:48 +0000
                Re: SmartMenu - was: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-12 09:18 +0000
                Re: SmartMenu - was: VRPC on a USB pen Martin Wuerthner <spamtrap@mw-software.com> - 2011-11-12 11:44 +0100
                Re: SmartMenu - was: VRPC on a USB pen Vince M Hudd <vinceh@softrock.co.uk> - 2011-11-11 09:32 +0000
                Re: SmartMenu - was: VRPC on a USB pen Martin Bazley <martin.bazley@blueyonder.co.uk> - 2011-11-13 12:22 +0000
                Re: SmartMenu - was: VRPC on a USB pen Steve Fryatt <news@stevefryatt.org.uk> - 2011-11-13 13:30 +0000
                Re: SmartMenu - was: VRPC on a USB pen Martin Bazley <martin.bazley@blueyonder.co.uk> - 2011-11-15 01:20 +0000
                Re: SmartMenu - was: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-13 22:11 +0100
                Re: SmartMenu - was: VRPC on a USB pen Martin Wuerthner <spamtrap@mw-software.com> - 2011-11-14 19:08 +0100
                Re: SmartMenu - was: VRPC on a USB pen David Pitt <pittdj@pittdj.co.uk> - 2011-11-14 19:25 +0000
                Re: SmartMenu - was: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-11 05:38 +0100
                Re: SmartMenu - was: VRPC on a USB pen Richard Ashbery <basura@invalid.addr.uk> - 2011-11-12 13:31 +0000
                Re: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-06 12:56 +0000
          Re: VRPC on a USB pen Jess <phantasm_39@hotmail.com> - 2011-11-01 10:50 +0000
    Re: VRPC on a USB pen druck <news@druck.freeuk.com> - 2011-10-29 19:39 +0100
      Re: VRPC on a USB pen Tim Hill <tim@invalid.org.uk> - 2011-10-29 20:24 +0100
  Re: VRPC on a USB pen Sion <s.cleaver@mail.com> - 2011-10-29 09:46 -0700
    Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-29 20:40 +0200
    Re: VRPC on a USB pen druck <news@druck.freeuk.com> - 2011-10-29 19:41 +0100
      Re: VRPC on a USB pen "Ste (news)" <steve@revi11.plus.com> - 2011-10-30 21:49 +0000
  Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-29 20:26 +0200
    Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-29 20:47 +0200
      Re: VRPC on a USB pen Tim Hill <tim@invalid.org.uk> - 2011-10-29 20:28 +0100
        Re: VRPC on a USB pen druck <news@druck.org.uk> - 2011-10-29 23:40 +0100
          Re: VRPC on a USB pen Tim Hill <tim@invalid.org.uk> - 2011-10-29 23:45 +0100
            Re: VRPC on a USB pen druck <news@druck.org.uk> - 2011-10-30 00:00 +0100
              Re: VRPC on a USB pen Tim Hill <tim@invalid.org.uk> - 2011-10-30 00:03 +0100
              Re: VRPC on a USB pen Dave Symes <dave@triffid.co.uk> - 2011-10-30 06:38 +0000
      Re: VRPC on a USB pen Stuart <Spambin@argonet.co.uk> - 2011-10-29 23:52 +0100
      Re: VRPC on a USB pen Andrew Hodgkinson <ahodgkin@rowing.org.uk> - 2011-10-31 17:22 +0000
        Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-31 20:12 +0100
        VRPC on a USB pen Dave Symes <dave@triffid.co.uk> - 2011-10-31 21:21 +0000
          Re: VRPC on a USB pen Andrew Hodgkinson <ahodgkin@rowing.org.uk> - 2011-11-14 13:15 +0000
    Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-29 21:21 +0200
      Re: VRPC on a USB pen druck <news@druck.org.uk> - 2011-10-29 23:52 +0100
        Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-10-31 00:07 +0100
          Re: VRPC on a USB pen Theo Markettos <theom+news@chiark.greenend.org.uk> - 2011-10-31 01:05 +0000
    Re: VRPC on a USB pen Chris Hughes <news@noonehere.co.uk> - 2011-10-31 18:48 +0000
      Re: VRPC on a USB pen Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-11-01 20:23 +0100

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