On 2011/1/2 Xyne
On 2011-01-02 12:18 +0100 (00:7) Rémy Oudompheng wrote:
Dependencies are expressed as a union of intervals : here [2.1, 2.2) union [3.0, infinity) (square brackets mean inclusive, parentheses mean exclusive bounds).
* how should multiple intervals be treated ? I currently use the last one, Peter suggests to use the first one, maybe we should use the convex hull of possible dependencies ? * when the dependency spec is reduced to a single interval [a,b] should we output >=a or <=b ? if the interval is unbounded then there is no problem.
The wording of your reply implies that you are unaware that you can specify single intervals. Perhaps that was unintentional, but in case it wasn't I give the following example: depends=('foo>=a' 'foo<=b'). You can also use ">" and "<", so a single interval, bounded or unbounded, is not a problem. For multiple versions it makes sense to use the one that is satisfiable by the current set of packages.
I suggested to use this trick some time ago, and I don't remember getting any answer, so I thought it was either undesirable, ugly or not working. My point of view on this is that we should select a preferred version depending on what is in the repository, and this is the point of the new data file. -- Rémy.