[aur-general] [arch-general] Please settle 'base' in 'depends' for all

[Joao Cordeiro]

On Wed, Jan 19, 2011 at 2:07 PM, Pierre Chapuis <catwell at archlinux.us>wrote:

>
> Here is an example:
>
> A depends on B and D
> B depends on C
> C depends on D and E
>
> Currently the deps will be:
>
> A -> B,D
> B -> C
> C -> D,E
>
> When installing A, Pacman will:
>
> 1) check deps for A, start installing B and D
> 2) check deps for B and D, start installing C
> 3) check deps for C, start installing E
>
> With a transitive closure scheme at packaging time, the
> deps would be:
>
> A -> B,C,D,E
> B -> C,D,E
> C -> D,E
>
> When installing A, Pacman could simply install B, C, D and E
> *without* checking their deps (-Sd) because these deps are
> necessarily already included in those for A.
>
> --
> Pierre 'catwell' Chapuis
>

If B and D are already installed, the current implementation does 2
dependency checks and trasitive closure makes 4. Also, does not pacman need
to know that C, D and E must be installed before B? Your approach would
probably install B before its dependencies.