On Sun, 28 Jun 2009 15:44:04 +0300, Lester L. Martin II
<[email protected]> wrote:
I was a bit skimpy on the projects plan. It's supposed to end up being a
D Installer in D for multiple compiler sets, libraries, and some other
stuff and it would use DSSS net to get all these different things once I
completed that DSSS Net thing. It would end up being like a "package
manager" for D because it could upgrade, downgrade and so much more such
as resolve conflicts between libraries ("No, you are not allowed to
install that because it is not going to work with what you got, can I
recommend you X instead, oh, ok you said no, do you want to install
anyway, gosh, you said yes, I'll continue, but don't say I didn't warn
ya"). Of course that type of resolving feature wasn't going to make it
into first release because that's particularly hard. The upgrade feature
would upgrade or fail and not upgrade anything. the downgrade feature is
a "just in case" feature. Of course, most of this is conceptual at the
moment, though I have a lot of the backend of a DSSS net thing written,
I have yet to give it the hooks required to download, and install, and
have yet to give it a simple command line interface.
Judging by SVN [1] there isn't much to look at at the moment, so I had a
look at the XML example [2]. Some questions:
1) Why do you have a list of downloads? Are these supposed to be mirrors?
Or does each one represent a version?
2) What's the difference between package dependencies and download
dependencies?
3) Why are the package dependencies in human-readable format (and include
Internet location) rather than reference another package by name?
4) Same for download dependencies - aren't a package identifier and
version sufficient for a dependency declaration?
5) I don't think installation instructions can be described in only shell
commands...
Sorry if that was a very rough draft and your actual design isn't
challenged by these questions.
[1]
http://dsource.org/projects/dinstaller/browser/trunk/D/Dinstaller%20in%20D
[2] http://www.dsource.org/projects/dinstaller/wiki/pdesc
--
Best regards,
Vladimir mailto:[email protected]
