staversion

staversion is a command-line tool to look for version numbers for Haskell packages in specific stackage resolvers. It answers to questions like "What version is the package X in stackage lts-Y.ZZ?" It aims to make it easier to write build-depends section in YOUR_PACKAGE.cabal.

$ staversion --resolver lts-4.2 conduit
------ lts-4.2
conduit ==1.2.6.1

$ staversion --resolver lts-4.2 --resolver lts-7.0 conduit
------ lts-4.2
conduit ==1.2.6.1

------ lts-7.0
conduit ==1.2.7

$ staversion --resolver lts-4.2 --resolver lts-7.0 conduit base
------ lts-4.2
conduit ==1.2.6.1,
base ==4.8.2.0

------ lts-7.0
conduit ==1.2.7,
base ==4.9.0.0

Currently staversion reads build plan YAML files that are stored locally in your computer.

TODO

• Fetch build plan YAML files from github.com
• Cache build plans in some local storage (SQLite?)
• Expand major version resolvers (lts-X) into full resolvers (lts-X.YY)
• Search for the latest version numbers hosted in hackage.
• Read build-depends sections .cabal files for package name queries.
• Show version number ranges supported by the given resolvers.

Author

Toshio Ito debug.ito@gmail.com