Difference between revisions of "Haskell Platform"

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'''Haskell: Batteries Included'''
 
  +
{{HP}}
   
The Haskell Platform (HP) is the name of a proposed library set
 
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The Haskell Platform is a single, standard [[Haskell]] development environment for everyone. It offers a set of blessed libraries and tools, to save you the task of picking and choosing which core Haskell libraries to use.
that would be the minimum standard for Haskell library support on a
 
system.
 
   
More generally, if we want tools as well as libraries, then the simpler name
 
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[http://haskell.org/platform/contents.html Learn more about the Haskell Platform ⇒]
''Haskell Platform'' may be more appropriate than the original name ''Haskell Library Platform''.
 
   
There are now more than 500 libraries available for Haskell, on
 
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__TOC__
[http://hackage.haskell.org hackage]. Choosing which libraries to
 
support on a distro is currently done on an ad hoc basis, with
 
significant variation from one distribution to another.
 
   
Some, such as Arch Linux, or Gentoo Linux, include as many libraries as
 
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== What's in the platform ==
possible (typically over 400), while others have the bare minimum
 
required to build ghc and say, darcs and xmonad.
 
   
The Haskell community needs to provide direction and blessing to a
 
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See the official [http://www.haskell.org/platform/changelog.html Haskell Platform Changelog].
library set that should be available and adopted, to further encourage
 
Haskell use.
 
   
Ensuring that the chosen set of library versions works well together, and
 
with a particular version of GHC (and other tools), is a major goal.
 
   
== Discussion ==
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== Trouble shooting ==
   
* [http://cgi.cse.unsw.edu.au/~dons/blog/2008/07/29#batteries A proposal paper] for the 2008 Haskell Workshop.
 
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Report bugs on GitHub:
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[https://github.com/haskell/haskell-platform/issues Haskell Platform Issues].
   
* [http://thread.gmane.org/gmane.comp.lang.haskell.cvs.ghc/28062/focus=28807 A discussion] took place in June and July 2008 about the direction of the HLP.
 
* [http://haskell.org/~duncan/ghc/%23ghc-2008-07-16.log More occurred during the #ghc meeting]
 
   
== Next Steps==
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=== Developers ===
   
The next step in the process:
 
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* New [https://github.com/haskell/haskell-platform/wiki/ Haskell Platform Wiki]
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* Old [http://trac.haskell.org/haskell-platform/ Trac wiki]
   
* Define admission progress: how does a package get into the HLP
 
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== Buttons ==
* Sort out the release team
 
* Define the installation expectations
 
* Set up a bug tracker for the HLP project.
 
* Create a repo.
 
   
==Criteria==
 
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We have some buttons to let your friends know about the Haskell Platform.
   
* GHC would build against its own core libraries, but would be generally distributed with the HLP.
 
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[http://haskell.org/platform http://raw.githubusercontent.com/haskell/haskell-platform/master/website/icons/button-100.png]
   
* The HLP should provide good coverage for all typical tasks one might want to accomplish with the language, given library availability.
 
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Use this html in your site:
   
* No bottlenecks: release of the HLP should be entirely independent from GHC, and also independent of the development cycle of any individual library or tool.
 
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<code>
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<nowiki>
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<a href="http://haskell.org/platform">
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<img src="http://raw.githubusercontent.com/haskell/haskell-platform/master/website/icons/button-100.png"></a>
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</nowiki>
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</code>
   
* HP should be separately upgradeable
 
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[http://haskell.org/platform http://raw.githubusercontent.com/haskell/haskell-platform/master/website/icons/button-64.png]
   
===Quality Control===
 
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Use this html in your site:
   
* cabal-installable libraries with haddocks.
 
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<code>
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<nowiki>
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<a href="http://hackage.haskell.org/platform">
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<img src="http://raw.githubusercontent.com/haskell/haskell-platform/master/website/icons/button-64.png"></a>
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</nowiki>
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</code>
   
* The set of HP packages + core libs must be closed. That is all haskell dependencies must be from within the HP packages or core libs. Dependencies on C libs can be external.
 
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SVG source for the button: http://haskell.org/haskellwiki/Image:Button.svg
   
* All packages in a particular HP version must have a consistent install plan.
 
That means only one version of each package and all dependencies on packages must be satisfied by the version in the HP package set.
 
   
There is code in cabal-install to check the last two requirements.
 
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=== Icons ===
   
Other possible ideas for quality standards we might want to require:
 
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Icons for the platform installer and desktop.
   
* exposed module names must follow the hierarchical module name convention, meaning they must be in an appropriate place in the module namespace.
 
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[[Image:Platform-100.png]]
   
=== Other heuristics ===
 
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[[Image:Platform-64.png]]
   
Packages set for inclusion should:
 
   
* Have a maintainer
 
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=== Legal ===
* Have a bug tracker
 
* Use the correct versioning
 
* Build with cabal
 
* Work on all arches.
 
   
Further goals:
 
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* The cherry blossom image used in the 2011 HP release is [http://www.flickr.com/photos/28481088@N00/3291086383/ licensed CC by tanakawho]
   
* -Wall clean
 
* 100% coverage
 
* Have real world use.
 
   
== Distribution format ==
 
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[[Category:HaskellPlatform]]
 
The HP can be a meta package on hackage.haskell.org, that simply
 
depends on the core set.
 
 
cabal install hp
 
 
should work, for example.
 
 
Beyond this, we'll need a why to provide single tarballs of the set,
 
windows installers et al. Will GHC need cabal-install?
 
 
''platform'' would be much more descriptive as a name for this package [[User:MichalPalka|MichalPalka]] 23:56, 24 July 2008 (UTC)
 
 
== Current library set ==
 
 
===Core system===
 
 
This will be on every system, as they're required for GHC to build:
 
 
* array
 
* base
 
* bytestring
 
* Cabal
 
* containers
 
* directory
 
* editline
 
* filepath
 
* haskell98
 
* hpc
 
* integer-gmp
 
* old-locale
 
* old-time
 
* packedstring
 
* pretty
 
* process
 
* random
 
* template-haskell
 
* unix OR Win32
 
 
===Extra libraries===
 
 
Current libraries available in the 'extralibs' bundle provided with GHC,
 
a descendent of what used to by fptools, with a few additions.
 
 
* ALUT
 
* GLUT
 
* HUnit
 
* ObjectIO
 
* OpenAL
 
* OpenGL
 
* QuickCheck
 
* cgi
 
* fgl
 
* haskell-src
 
* html
 
* mtl
 
* network
 
* parsec
 
* parallel
 
* regex-base
 
* regex-compat
 
* regex-posix
 
* stm
 
* time
 
* xhtml
 
 
== HLP: Batteries Included==
 
 
[[/Batteries_Included]]
 
 
== Tools ==
 
 
Language-processing tools should probably also be considered to be part of the platform. Commonly-needed tools include:
 
 
* ghc
 
* happy
 
* alex
 
* haddock
 
* cpphs
 
* cabal-install (now known simply as cabal?)
 
 
What else might we consider?
 
 
* DrIFT or derive
 
* throw in another compiler - e.g. Hugs?
 
* c2hs
 
* hsc2hs
 
 
==Release mechanics==
 
 
==Public "Haskell Platform Compliant" list==
 
 
To encourage adoption of the HLP, distributions that support the HLP
 
will be publically listed as e.g. "Haskell Platform Compliant"
 
 
 
==History==
 
 
* fptools
 
* extralibs/ core libs
 
 
== Related ==
 
 
* [http://docs.python.org/lib/lib.html Python libraries]
 
* [http://live.gnome.org/ReleasePlanning Gnome's release process]
 
* [http://live.gnome.org/ReleasePlanning/ModuleProposing How to propose modules for GNOME]
 
 
[[Category:Community]]
 

Latest revision as of 14:34, 11 August 2014

Platform.png
The Haskell Platform


The Haskell Platform is a single, standard Haskell development environment for everyone. It offers a set of blessed libraries and tools, to save you the task of picking and choosing which core Haskell libraries to use.

Learn more about the Haskell Platform ⇒

What's in the platform

See the official Haskell Platform Changelog.


Trouble shooting

Report bugs on GitHub: Haskell Platform Issues.


Developers

Buttons

We have some buttons to let your friends know about the Haskell Platform.

button-100.png

Use this html in your site:

<a href="http://haskell.org/platform"> <img src="http://raw.githubusercontent.com/haskell/haskell-platform/master/website/icons/button-100.png"></a>

button-64.png

Use this html in your site:

<a href="http://hackage.haskell.org/platform"> <img src="http://raw.githubusercontent.com/haskell/haskell-platform/master/website/icons/button-64.png"></a>

SVG source for the button: http://haskell.org/haskellwiki/Image:Button.svg


Icons

Icons for the platform installer and desktop.

Platform-100.png

Platform-64.png


Legal