hpack: An alternative format for Haskell packages

Examples

• Given this package.yaml running hpack will generate hpack.cabal
• Given this package.yaml running hpack will generate getopt-generics.cabal
• Given this package.yaml running hpack will generate sensei.cabal
• Given this package.yaml running hpack will generate base-orphans.cabal

Documentation

Documentation is mostly missing so far, sorry for that!

• Slides from my talk about hpack at the Singapore Haskell meetup: http://typeful.net/talks/hpack

File globbing

At place where you can specify a list of files you can also use glob patterns. Glob patters and ordinary file names can be freely mixed, e.g.:

extra-source-files:
  - static/*.js
  - static/site.css

Glob patterns are expanded according to the following rules:

• ? and * are expanded according to POSIX (they match arbitrary characters, except for directory separators)
• ** is expanded in a zsh-like fashion (matching across directory separators)
• ?, * and ** do not match a . at the beginning of a file/directory

Vim integration

To run hpack automatically on modifications to package.yaml add the following to your ~/.vimrc:

autocmd BufWritePost package.yaml silent !hpack --silent