Version 20 (modified by ross@…, 5 years ago)

inspirational links moved from start page

  1. The Hackage Database
    1. Web interface
    2. Development
    3. Structure
    4. Similar systems for other languages
    5. Other repositories

The Hackage Database

HackageDB is a pool of releases of Haskell software, bundled as Cabal packages.

Web interface

The package collection can be presented in various ways. So far we have a  basic web interface to the Hackage database. It presents a simple listing of packages, and has forms for checking and uploading packages.

See also cabal upload, a command-line tool for uploading Cabal packages to HackageDB.

Development

See also HackageDB/History, Open tickets and HackageToDo.

The source code is available via

However many enhancements do not require modifying this code, because the data can be accessed directly, and has a simple structure, as described below.

Structure

A package collection is a directory with a simple structure:

  • 00-index.tar.gz
  • pkg-list.html
  • log
  • pkg/
    • version/
      • pkg.cabal
      • pkgid.tar.gz
      • doc/
        • html/
      • logs/
        • failure
          • logs of unsuccessful builds
        • success
          • logs of successful builds
    • ...
    • latest (symbolic link)
  • ...

where 00-index.tar.gz tars up all the pkg/version/pkg.cabal files.

The collection may contain several versions of a particular package.

For example, see the  package collection underlying the above interface.

Suggestion: replace the index with a concatenation of the .cabal files with some separator (say @), and having both gzipped and uncompressed versions.

The upload script runs a shell script post-upload-hook, so we can add as many indices as we want.

Similar systems for other languages

Other repositories