Modulehorizon-config-shell-0.12.1GHC2024

Horizon.Config.Toolchain

What a solve takes from the pinned toolchain root: its compiler, the packages its base set already provides, and cabal, pkg-config and native libraries from the nixpkgs it builds with. Everything is asked of the toolchain flake by attribute name, so the solve sees what the build will.

Synopsis

data Toolchain
value resolve
value held

Packagehorizon-config-shell-0.12.1
Exports3
LanguageGHC2024
LicenceBSD-3-Clause
SourceToolchain.hs

datadata Toolchain

Source#

The toolchain's contribution to a solve.

Constructors

Toolchain
- ghc :: FilePath
  the pinned ghc binary
- base :: [Text]
  attribute names of the toolchain's base set
- outputs :: [FilePath]
  every output of cabal-install, pkg-config and the libraries

valueresolve :: String -> [Text] -> IO Toolchain

Source#

Resolve a toolchain flake reference: its ghc, the names its package set publishes (packageNames), and every output of cabal-install, pkg-config and the given native libraries from the nixpkgs it pins (a library's dev output carries its pkg-config file).

valueheld :: String -> [Text] -> IO [(Text, Text)]

Source#

The version a lower set holds of each of the given packages it provides, asked of its legacyPackages: a set layered on it solves around these. A package whose version cannot be read (an alias, a null the compiler provides) is left out.