Re: [Haskell-cafe] Re: databases in Haskell & type-safety

* John Goerzen [2009-01-13 20:53:40 -0600]:

Xie Hanjian wrote:

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* John Goerzen [2009-01-13 12:37:45 -0600]:

Redmine requires only ruby 1.8.6 and rails 2.1.2, which are both stable releases, so I think an upgrade of your ruby stack is very reasonable.

It also requires a newer version of rake than is in Debian. Not a problem as such, but you start working with gem install commands (and their friends), and eventually find that after spending 30 minutes installing/upgrading stuff, it bombs at the very end saying that some component needed a newer version of something than is available, and it can't install that component, so it's left the server hosed -- too new to run the old version, not ready to accept the new. Great.

It ought to have checked the dependencies *before* messing with my system. And it ought not to have failed mysteriously anyhow.

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To anyone annoyed with Haskell's library install process: you have no idea how good you have it unless you've tried Ruby and rails.

Disagree. Rubygems is fairly easy to use. At lease, I can guess how to

It is completely poorly documented on how to gem install something when you don't have root. The gem(1) manpage is a joke. The online help doesn't help much either. Turns out there is a magic combination of undocumented environment variables and documented command-line options that does it. Or at least, I *thought* it does it.

The other problem about Rails is that code and data are inseparably mixed. It will be just about impossible to install a rails app as a Debian package because it needs write access to its install directory, and this stuff is not easily configured to use /usr and /etc as appropriate.

From your description it seems debian's rails stack mess you up, not ruby/rails itself. And I think install a rails app as a debian package is not a good idea.

Anyhow, this is a Haskell list, so I'm not going to rant any more about this here. I can give you details off-list if you like. It's touched a

ok :-| Jan

nerve lately.

-- John _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

-- jan=callcc{|jan|jan};jan.call(jan)