On Thursday 29 January 2004 02:40 CET Spider wrote:
> On Wed, 28 Jan 2004 16:36:25 +0100 "Malte S. Stretz" wrote:
> > So what's the purpose of the --update switch, or better? Does it tell
> > emerge to recursively look at each and every dependecy and update it
> > if any newer version is available?
>
> as Ive come to understand it:
> -u searches for updates. if you have direct dependencies of a package.
> (foo needs bar >2.1 ) it will check for updates for all theese, and
> follow backwards.
>
>
> just doing "emerge foo" will only scan if you hit the "minimum
> required" dep, and be satisfied with that, even if it isn't the latest
> version avaiable.
>
>
> So, you have :
> foo-1.4 (latest is 2.3)
> bar-2.2 (latest is 2.4)
>
> and foo-2.3 depends on bar-2.1 or higher .
>
> this gives that :
> emerge foo : installs foo-2.3
> emerge -u foo : installs foo-2.3 -and- bar-2.4
>
> This also goes downwards, by checking each package foo, and bar depends
> on, and so on until you cant find more packages.
Ok, that makes sense if you really think about it. In the end an update is
nothing more than a new merge of the package. The difference I saw between
the normal merge and --update till now is more like the functionality of
the autoclean FEATURE (IIRC, might also be some other option). So maybe
--deep-update would have been a better name for --update :)
> > But if so, what if a package I want to update needs another one to be
> > upgraded. Is there any way (except stating the dependency explicitly
> > on the command line) to have that one upgraded, too, without standing
> > in front of a whole ~x86 system after it's finished?
>
> explicit dependencies will be dealt with "no matter what" . See
> previous paragraph for examples.
>
> still wondering? don't be too afraid to ask ;)
Nah, think I grokked it now. Thanks :)
Cheers,
Malte
--
[SGT] Simon G. Tatham: "How to Report Bugs Effectively"
<http://www.chiark.greenend.org.uk/~sgtatham/bugs.html>
[ESR] Eric S. Raymond: "How To Ask Questions The Smart Way"
<http://www.catb.org/~esr/faqs/smart-questions.html>
--
[EMAIL PROTECTED] mailing list
