Stack Age Release For Free

Stack is a tool to build Haskell projects and manage their dependencies. It uses the Cabal library but with a curated version of the Hackage repository called Stackage. Stack competes against Cabal's binary cabal- and has been created as a result of the overall criticism about dependency problems.

How to Build with Stack Start a new project. You can start a new project with the command: stack new my-project-name. ... Convert an existing package. ... Project versus package. ... Building. ... Running executables. ... Testing. ... Common flags. ... What's next.

About Stackage Stackage provides consistent sets of Haskell packages, known to build together and pass their tests before becoming Stackage Nightly snapshots and LTS (Long Term Support) releases. It is a distribution of a subset of packages from Hackage, each package chosen at a version to make the set self-consistent.

To build your project, Stack uses a project-level configuration file, named stack. yaml , in the root directory of your project as a sort of blueprint. That file contains a reference, called a resolver, to the snapshot which your package will be built against.

Stack: Installs the stack command globally: a project-centric build tool to automatically download and manage Haskell dependencies on a project-by-project basis. Haskell Platform: Installs GHC, Cabal, and some other tools, along with a starter set of libraries in a global location on your system.

Stack is a build system for Haskell that aims to give you extremely reproducible builds. To do this, it manages (and freezes) all your dependencies and the version of GHC being used for your project. Stack is backed by the Stackage package system.

Stack will default to using whatever GHC is on your PATH . If that GHC is a compatible version with the snapshot you're using, it will simply use it. Otherwise, it will prompt you to run stack setup . Note that stack setup installs GHC into ~/.