Re: More detail on breakage with ghc-6.10

2008-10-23 Thread Wolfgang Jeltsch
Am Samstag, 11. Oktober 2008 09:36 schrieb Duncan Coutts:
 All,

 We've been using the cabal-install build reporting stuff to get more
 detailed info on build failures with ghc-6.10 vs 6.8. cabal-install
 generates these build-reports.log files and individual log files for
 each build.

build-reports.log informs me that configure failed for the lax package with 
both GHC 6.8 and GHC 6.10.  However, lax used to build fine on my machine 
with GHC 6.8.  So I looked at logs/lax-0.0.0.1.log but this file is empty.  
Why?

Best wishes,
Wolfgang
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Re: More detail on breakage with ghc-6.10

2008-10-23 Thread Daniel Fischer
Am Donnerstag, 23. Oktober 2008 12:59 schrieb Wolfgang Jeltsch:
 Am Samstag, 11. Oktober 2008 09:36 schrieb Duncan Coutts:
  All,
 
  We've been using the cabal-install build reporting stuff to get more
  detailed info on build failures with ghc-6.10 vs 6.8. cabal-install
  generates these build-reports.log files and individual log files for
  each build.

 build-reports.log informs me that configure failed for the lax package with
 both GHC 6.8 and GHC 6.10.  However, lax used to build fine on my machine
 with GHC 6.8.  So I looked at logs/lax-0.0.0.1.log but this file is empty.
 Why?

 Best wishes,
 Wolfgang

lax-0.0.0.1 just built fine for me using 6.8.3,

package: lax-0.0.0.1
os: linux
arch: i386
compiler: ghc-6.8.3
client: cabal-install-0.6.0
flags:
dependencies: base-3.0.2.0
install-outcome: InstallOk
docs-outcome: NotTried
tests-outcome: NotTried

Probably the log is empty because no build outcomes have been reported
(I just tried cabal report and got
cabal: /home/dafis/.cabal/reports/hackage.haskell.org: getDirectoryContents: 
does not exist (No such file or directory)
, I can't be bothered now to find out what I'd have to do to make it work).

Cheers,
Daniel
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Re: More detail on breakage with ghc-6.10

2008-10-23 Thread Don Stewart
g9ks157k:
 Am Samstag, 11. Oktober 2008 09:36 schrieb Duncan Coutts:
  All,
 
  We've been using the cabal-install build reporting stuff to get more
  detailed info on build failures with ghc-6.10 vs 6.8. cabal-install
  generates these build-reports.log files and individual log files for
  each build.
 
 build-reports.log informs me that configure failed for the lax package with 
 both GHC 6.8 and GHC 6.10.  However, lax used to build fine on my machine 
 with GHC 6.8.  So I looked at logs/lax-0.0.0.1.log but this file is empty.  
 Why?

Resolving dependencies...
'lax-0.0.0.1' is cached.
cabal: The package requires Cabal library version -any  =1.2  1.4
but no
suitable version is installed.
cabal: Error: some packages failed to install

Perhaps?
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Re: More detail on breakage with ghc-6.10

2008-10-23 Thread Duncan Coutts
On Thu, 2008-10-23 at 12:59 +0200, Wolfgang Jeltsch wrote:
 Am Samstag, 11. Oktober 2008 09:36 schrieb Duncan Coutts:
  All,
 
  We've been using the cabal-install build reporting stuff to get more
  detailed info on build failures with ghc-6.10 vs 6.8. cabal-install
  generates these build-reports.log files and individual log files for
  each build.
 
 build-reports.log informs me that configure failed for the lax package with 
 both GHC 6.8 and GHC 6.10.  However, lax used to build fine on my machine 
 with GHC 6.8.  So I looked at logs/lax-0.0.0.1.log but this file is empty.  
 Why?

As Don noted, it's because it didn't even get to the stage of running
the configure for the package. That's the first part where it starts
logging. Yes, the logging is sadly rather primitive.

Duncan

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Re: More detail on breakage with ghc-6.10

2008-10-11 Thread Claus Reinke

We've been using the cabal-install build reporting stuff to get more
detailed info on build failures with ghc-6.10 vs 6.8. cabal-install
generates these build-reports.log files and individual log files for
each build.


Since you do have the infrastructure set up: haddock is also changing
with ghc-6.10. Are the no (visible) issues resulting from that (which
would be great!), or didn't your tests include haddocking?

Claus

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Re: More detail on breakage with ghc-6.10

2008-10-11 Thread Don Stewart
claus.reinke:
 We've been using the cabal-install build reporting stuff to get more
 detailed info on build failures with ghc-6.10 vs 6.8. cabal-install
 generates these build-reports.log files and individual log files for
 each build.
 
 Since you do have the infrastructure set up: haddock is also changing
 with ghc-6.10. Are the no (visible) issues resulting from that (which
 would be great!), or didn't your tests include haddocking?

No haddock tests yet, but we can start doing that. Good idea.
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Breakage with ghc-6.10

2008-10-10 Thread Duncan Coutts
This is a quick summary of the results of building most of hackage using
three combinations of ghc and Cabal.

I reported the breakage due to Cabal-1.6 previously. This is a brief
look at breakage introduced with ghc-6.10 and the associated library
changes.

I have build summary logs and individual package build logs. I will post
those later. Anyway, here's the summary of the summary:

ghc-6.8.2  Cabal-1.4.0.2

  1 UnpackFailed
  3 InstallFailed
 20 ConfigureFailed
 27 DependencyFailed
 87 BuildFailed
547 InstallOk

ghc-6.8.2  Cabal-1.5.6

  1 UnpackFailed
  3 InstallFailed
 26 ConfigureFailed
 27 DependencyFailed
 87 BuildFailed
541 InstallOk

ghc-6.10.0 (5th Oct version)  Cabal-1.6.0.0

  1 InstallFailed
 21 ConfigureFailed
121 DependencyFailed
126 BuildFailed
422 InstallOk


If we look at a breakdown of the builds that caused three or more
knock-on failures (ie the causes of the 121 DependencyFailed above):

  3 hxt-8.1.0
  4 hsql-1.7
  4 hsx-0.4.4
  4 plugins-1.3
  4 TypeCompose-0.5
  6 arrows-0.4
 24 hslogger-1.0.5
 46 time-1.1.2.1

Hmm, time and hslogger are big ones there. Let's look at the individual
package build logs. First time:

Data/Time/Clock/CTimeval.hs:1:11:
Warning: -ffi is deprecated: use -XForeignFunctionInterface or
pragma {-# LANGUAGE ForeignFunctionInterface#-} instead

no location info:
Failing due to -Werror.

Nooo!!

This is the reason that hackage now rejects the use of -Werror in
released packages. It causes unnecessary breakage when new compilers add
new warnings.

Ok, lets look at hslogger:

src/System/Log/Logger.hs:333:20:
Couldn't match expected type `Maybe Logger'
   against inferred type `IO Logger'
In a stmt of a 'do' expression: result - Map.lookup lname newlt

Ah ok, so that's the change in Map.lookup to return Maybe rather than in
any monad. So that's an easy source code fix:

result - maybe (fail Arrgh!) return (Map.lookup lname newlt)

Note of course this will also work with the previous implementation of
lookup.


Duncan

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Re: Breakage with ghc-6.10

2008-10-10 Thread Ashley Yakeley
On Fri, 2008-10-10 at 09:08 -0700, Duncan Coutts wrote:
 Data/Time/Clock/CTimeval.hs:1:11:
 Warning: -ffi is deprecated: use -XForeignFunctionInterface or
 pragma {-# LANGUAGE ForeignFunctionInterface#-} instead
 
 no location info:
 Failing due to -Werror.
 
 Nooo!!
 
 This is the reason that hackage now rejects the use of -Werror in
 released packages. It causes unnecessary breakage when new compilers
 add new warnings.

Warnings in a build process should be fixed, not ignored (and, I would
say, fixed by whoever introduced the warning or otherwise broke the
build).

Hackage, on the other hand, is right to reject -Werror in .cabal files,
as there the build is really part of the install process and should be
as lenient as possible. I pass --ghc-options=-Wall -Werror to cabal in
a Makefile in most of my projects, so that my development build process
is strict.

-- 
Ashley Yakeley

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Re: Breakage with ghc-6.10

2008-10-10 Thread John Goerzen
Duncan Coutts wrote:
 Ok, lets look at hslogger:
 
 src/System/Log/Logger.hs:333:20:
 Couldn't match expected type `Maybe Logger'
against inferred type `IO Logger'
 In a stmt of a 'do' expression: result - Map.lookup lname newlt
 
 Ah ok, so that's the change in Map.lookup to return Maybe rather than in
 any monad. So that's an easy source code fix:
 
 result - maybe (fail Arrgh!) return (Map.lookup lname newlt)

There are actually more instances than this in the code, but I already
have fixed it in my git tree.  I guess it's time to make a release.

-- John

 
 Note of course this will also work with the previous implementation of
 lookup.
 
 
 Duncan
 
 

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Re: Breakage with ghc-6.10

2008-10-10 Thread Duncan Coutts
Sorry Ashley, I hope you didn't feel I was picking on you in particular.
I realise it might have looked that way.

On Fri, 2008-10-10 at 11:08 -0700, Ashley Yakeley wrote:
 On Fri, 2008-10-10 at 09:08 -0700, Duncan Coutts wrote:
  Failing due to -Werror.
  
  Nooo!!
  
  This is the reason that hackage now rejects the use of -Werror in
  released packages. It causes unnecessary breakage when new compilers
  add new warnings.
 
 Warnings in a build process should be fixed, not ignored (and, I would
 say, fixed by whoever introduced the warning or otherwise broke the
 build).

Yes indeed.

So it's appropriate for development builds.

 Hackage, on the other hand, is right to reject -Werror in .cabal files,
 as there the build is really part of the install process and should be
 as lenient as possible. I pass --ghc-options=-Wall -Werror to cabal in
 a Makefile in most of my projects, so that my development build process
 is strict.

Right. Putting -Wall in the ghc-options in the .cabal file is fine too
of course. Lots of packages do that.

Duncan

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Re: Breakage with ghc-6.10

2008-10-10 Thread John Goerzen
Duncan Coutts wrote:
 There are actually more instances than this in the code, but I already
 have fixed it in my git tree.  I guess it's time to make a release.
 
 Yay!
 
 Between that and a bump for the time lib we'll probably have another ~50
 packages building with 6.10.

And on that note, hslogger 1.0.6 is now in Hackage.

-- John
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Re: Breakage with ghc-6.10

2008-10-10 Thread Don Stewart
jgoerzen:
 Duncan Coutts wrote:
  There are actually more instances than this in the code, but I already
  have fixed it in my git tree.  I guess it's time to make a release.
  
  Yay!
  
  Between that and a bump for the time lib we'll probably have another ~50
  packages building with 6.10.
 
 And on that note, hslogger 1.0.6 is now in Hackage.

Great! I'll do a new hackage build test.

-- Don
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