[racket] package dependancies, version exceptions, version dependancies, and pkg-build

No, the version exception appears to be working fine, but it looks like
there's a bug in the way that "pkg-build" decides which packages to
retry.

I see that the current pkg-build results for "typed-big-bang" are from
yesterday, and the v6.1.1-specific mapping for "2htdp-typed" was added
later.

The change to "2htdp-typed" was correctly detected by the pkg-build
service, which today tried to build out of the "v6.1.1" branch of
"2htdp-typed". It ran into a problem, and it looks like the reported
error really is a problem with the "v6.1.1" branch when running on
v6.1.1.

Meanwhile, the pkg-build service today should have tried to rebuild
"typed-big-bang", given that it had pulled an update to "2htdp-typed",
and given that "typed-big-bang" declares a dependency on "2htdp-typed".
When I try running pkg-build service again (I didn't let it run to
completion), it does detect that "typed-big-bang" needs to be retried.
So, the bug seems to be in "pkg-build" and its computation of the
packages that need to be retried.

I'll work on the "pkg-build" bug. Meanwhile, if "2htdp-typed" is
changed further to work for v6.1.1, I expect that the pkg-build service
will catch up within an extra day.

At Sat, 31 Jan 2015 11:45:49 -0500, "Alexander D. Knauth" wrote:
> Weird things are happening with the pkg-build service with package 
> dependancies and version exceptions.
> I have a package, typed-big-bang, which depends on another package, 
> 2htdp-typed.  
> 2htdp-typed has a version exception, so that for 6.1.1, which is what the 
> pkg-build service is using, it depends on htdp-lib, but for other versions, it 
> depends on htdp-lib version 1.2.  
> The pkg-build service builds the version for 6.1.1, which just depends on 
> htdp-lib, (not the 1.2), but when it starts building typed-big-bang, it says 
> that it can’t install it because 2htdp-typed depends on htdp-lib v1.2 and it’s 
> installed as 1.1 in a different scope.  But shouldn’t it look at the version 
> exception for 6.1.1, which doesn’t have the dependency on htdp-lib 1.2, just 
> htdp-lib?  Is this a bug, or are packages not supposed to depend on version 
> 1.2 of htdp-lib (even they have version exceptions that don’t), or what?
> 
> 
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