• Daniel Wagner's avatar
    bare-bones new-exec support · 585fe3a4
    Daniel Wagner authored
    This implements a bare-bones skeleton for cabal new-exec.
    The old cabal exec gave programs access to a sandbox's package database.
    By analogy, cabal new-exec should give programs access to the store's
    package database; however, this database will be cluttered with many
    non-project-related packages that may confuse issues. Therefore new-exec
    selects just the packages that are in the current project's dependency
    tree and makes them available to compiler tools. Currently only very new
    GHCs are supported, via the GHC_ENVIRONMENT mechanism for selecting a
    subset of some package databases.
    Eventually we should probably also modify the PATH so that dependencies'
    executables are available.
Setup.hs 99.7 KB