Re: cabal repl failing silently on missing exposed-modules
If you haven't already, go file a bug on https://github.com/haskell/cabal/issues Edward Excerpts from cheater00 .'s message of 2014-08-06 15:18:04 +0100: > Hi, > I have just spent some time trying to figure out why all of a sudden > "cabal repl" silently exits without an error message. What helped was > to take a project that could launch the repl and compare the cabal > files to my new project. It turns out the exposed-modules entry was > missing. I was wondering whether this behaviour was intentional, as I > don't recollect this happening before, but I don't have older systems > to test this on. > > The reason I wanted to run a repl without editing exposed modules was > to test some dependencies I pulled in to the sandbox with cabal > install. The package in question didn't have any code of its own yet. > In this case I would just expect ghci to load with the Prelude. > > Thanks! ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: cabal repl failing silently on missing exposed-modules
Because it's actually not with a library but when building an executable, sorry I should have specified that. On 6 August 2014 22:31, cheater00 . wrote: > In the last email I meant that I don't see a reason to build a library > without exposed-modules, sorry! > > On Wed, Aug 6, 2014 at 11:29 PM, cheater00 . wrote: > > The simplest thing to fix your case might be to emit an error when a > > library is built with no exposed-modules (why would you build it > > otherwise?) > > > > On Wed, Aug 6, 2014 at 7:53 PM, Alois Cochard > wrote: > >> Hi, > >> > >> I'm not sure if that relate to this problem so please ignore me if not. > >> > >> I had to spend quite a lot of time understanding what the issue had, > when as > >> you I had forget to add an entry for `exposed-modules` and trying to > >> build... > >> Basically I had an error saying that a symbol was missing or something > like > >> that (can remember the exact message), but every time I have that issue > it > >> take me a while to realise I have forget the entry... > >> > >> I think it's not a type error, it's kind of a linking error maybe > that's why > >> the repl fail silently. > >> > >> Anyway, I was wondering if it would be possible to give a more helpful > error > >> message in such case. > >> > >> Cheers > >> > >> > >> > >> > >> On 6 August 2014 15:18, cheater00 . wrote: > >>> > >>> Hi, > >>> I have just spent some time trying to figure out why all of a sudden > >>> "cabal repl" silently exits without an error message. What helped was > >>> to take a project that could launch the repl and compare the cabal > >>> files to my new project. It turns out the exposed-modules entry was > >>> missing. I was wondering whether this behaviour was intentional, as I > >>> don't recollect this happening before, but I don't have older systems > >>> to test this on. > >>> > >>> The reason I wanted to run a repl without editing exposed modules was > >>> to test some dependencies I pulled in to the sandbox with cabal > >>> install. The package in question didn't have any code of its own yet. > >>> In this case I would just expect ghci to load with the Prelude. > >>> > >>> Thanks! > >>> ___ > >>> Glasgow-haskell-users mailing list > >>> Glasgow-haskell-users@haskell.org > >>> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > >> > >> > >> > >> > >> -- > >> Λ\ois > >> http://twitter.com/aloiscochard > >> http://github.com/aloiscochard > -- *Λ\ois* http://twitter.com/aloiscochard http://github.com/aloiscochard ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: cabal repl failing silently on missing exposed-modules
In the last email I meant that I don't see a reason to build a library without exposed-modules, sorry! On Wed, Aug 6, 2014 at 11:29 PM, cheater00 . wrote: > The simplest thing to fix your case might be to emit an error when a > library is built with no exposed-modules (why would you build it > otherwise?) > > On Wed, Aug 6, 2014 at 7:53 PM, Alois Cochard wrote: >> Hi, >> >> I'm not sure if that relate to this problem so please ignore me if not. >> >> I had to spend quite a lot of time understanding what the issue had, when as >> you I had forget to add an entry for `exposed-modules` and trying to >> build... >> Basically I had an error saying that a symbol was missing or something like >> that (can remember the exact message), but every time I have that issue it >> take me a while to realise I have forget the entry... >> >> I think it's not a type error, it's kind of a linking error maybe that's why >> the repl fail silently. >> >> Anyway, I was wondering if it would be possible to give a more helpful error >> message in such case. >> >> Cheers >> >> >> >> >> On 6 August 2014 15:18, cheater00 . wrote: >>> >>> Hi, >>> I have just spent some time trying to figure out why all of a sudden >>> "cabal repl" silently exits without an error message. What helped was >>> to take a project that could launch the repl and compare the cabal >>> files to my new project. It turns out the exposed-modules entry was >>> missing. I was wondering whether this behaviour was intentional, as I >>> don't recollect this happening before, but I don't have older systems >>> to test this on. >>> >>> The reason I wanted to run a repl without editing exposed modules was >>> to test some dependencies I pulled in to the sandbox with cabal >>> install. The package in question didn't have any code of its own yet. >>> In this case I would just expect ghci to load with the Prelude. >>> >>> Thanks! >>> ___ >>> Glasgow-haskell-users mailing list >>> Glasgow-haskell-users@haskell.org >>> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users >> >> >> >> >> -- >> Λ\ois >> http://twitter.com/aloiscochard >> http://github.com/aloiscochard ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: cabal repl failing silently on missing exposed-modules
The simplest thing to fix your case might be to emit an error when a library is built with no exposed-modules (why would you build it otherwise?) On Wed, Aug 6, 2014 at 7:53 PM, Alois Cochard wrote: > Hi, > > I'm not sure if that relate to this problem so please ignore me if not. > > I had to spend quite a lot of time understanding what the issue had, when as > you I had forget to add an entry for `exposed-modules` and trying to > build... > Basically I had an error saying that a symbol was missing or something like > that (can remember the exact message), but every time I have that issue it > take me a while to realise I have forget the entry... > > I think it's not a type error, it's kind of a linking error maybe that's why > the repl fail silently. > > Anyway, I was wondering if it would be possible to give a more helpful error > message in such case. > > Cheers > > > > > On 6 August 2014 15:18, cheater00 . wrote: >> >> Hi, >> I have just spent some time trying to figure out why all of a sudden >> "cabal repl" silently exits without an error message. What helped was >> to take a project that could launch the repl and compare the cabal >> files to my new project. It turns out the exposed-modules entry was >> missing. I was wondering whether this behaviour was intentional, as I >> don't recollect this happening before, but I don't have older systems >> to test this on. >> >> The reason I wanted to run a repl without editing exposed modules was >> to test some dependencies I pulled in to the sandbox with cabal >> install. The package in question didn't have any code of its own yet. >> In this case I would just expect ghci to load with the Prelude. >> >> Thanks! >> ___ >> Glasgow-haskell-users mailing list >> Glasgow-haskell-users@haskell.org >> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > > > > > -- > Λ\ois > http://twitter.com/aloiscochard > http://github.com/aloiscochard ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: cabal repl failing silently on missing exposed-modules
Hi, I'm not sure if that relate to this problem so please ignore me if not. I had to spend quite a lot of time understanding what the issue had, when as you I had forget to add an entry for `exposed-modules` and trying to build... Basically I had an error saying that a symbol was missing or something like that (can remember the exact message), but every time I have that issue it take me a while to realise I have forget the entry... I think it's not a type error, it's kind of a linking error maybe that's why the repl fail silently. Anyway, I was wondering if it would be possible to give a more helpful error message in such case. Cheers On 6 August 2014 15:18, cheater00 . wrote: > Hi, > I have just spent some time trying to figure out why all of a sudden > "cabal repl" silently exits without an error message. What helped was > to take a project that could launch the repl and compare the cabal > files to my new project. It turns out the exposed-modules entry was > missing. I was wondering whether this behaviour was intentional, as I > don't recollect this happening before, but I don't have older systems > to test this on. > > The reason I wanted to run a repl without editing exposed modules was > to test some dependencies I pulled in to the sandbox with cabal > install. The package in question didn't have any code of its own yet. > In this case I would just expect ghci to load with the Prelude. > > Thanks! > ___ > Glasgow-haskell-users mailing list > Glasgow-haskell-users@haskell.org > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > -- *Λ\ois* http://twitter.com/aloiscochard http://github.com/aloiscochard ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
