[wpkg-users] Priority vs Dependancy -- Order of Installation

[Tomasz Chmielewski]

Dr. Frank Lee schrieb:
> <installing MS bugfixes>
> 
>> I understand that higher priority packages are going to install first. I
>> know that, if one package/profile depends on another, that the other
>> package/profile will get installed as well, but does that imply the
>> dependancy will be installed first regardless of priority? In some cases, I
>> could see that as being a requirement. Software B requires Software A to be
>> installed first to register properly, but due to them being set at the same
>> priority, B installs first, then A, missing the required configuration
>> steps.
> 
>> How does WPKG handle dependancies and how does it deal with order of
>> installation? If this is already answered in a FAQ somewhere, I apologize
>> for not having searched there first. I haven't had the luxury of time to
>> disect the code to read my answer directly.
> 
> (I'm replying 'cos I think I contributed the start of the 'dependancy' 
> code...)
> 
> The 'dependancy' just adds the packages to the list, which is then 
> installed in order of priority. If 'foo' depends on 'bar' being present 
> for 'foo' to install properly, 'bar' ought to have a higher priority than 
> 'foo'.
> 
> In the example above, B should be set at a higher priority than A for 
> success. (I usually have 900-999 as the priority for OS patches, 700-799 
> for antivirus etc, 500-599 for 'mission critical' applications, 300-399 
> for useful things and 100-199 for end-user things like office. Even 
> numbered centuries are 'reserved for future expansion'...)

Thanks for a nice explanation - I added it to 
http://wpkg.org/Package_dependencies


-- 
Tomasz Chmielewski
http://wpkg.org


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