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name:                cabal-helper
version:             1.0.0.0
synopsis:
 Simple interface to some of Cabal's configuration state, mainly used by ghc-mod
description:
    Cabal's little helper provides access to build information gathered by
    @cabal@ when configuring a project. Specifically we're interested in
    retrieving enough information to bring up a compiler session, using the GHC
    API, which is similar to running @cabal repl@ in a project.
    .
    While simple in principle this is complicated by the fact that the
    information Cabal writes to disk is in an unstable format and only really
    accessible through the Cabal API itself.
    .
    Since we do not want to bind the user of a development tool which utilises
    this library to a specific version of Cabal we compile the code which
    interfaces with the Cabal library's API on the user's machine, at runtime,
    against whichever version of Cabal was used to write the on disk information
    for a given project.
    .
    If this version of Cabal is not available on the users machine anymore,
    which is fairly likely since cabal-install is usually linked statically, we
    have support for compiling the Cabal library also. In this case the library
    is installed into a private, isolated, package database in
    @$XDG_CACHE_HOME/cabal-helper@ so as to not interfere with the user's
    package database.
license:             GPL-3
license-file:        LICENSE
author:              Daniel Gröber <cabal-helper@dxld.at>
maintainer:          cabal-helper@dxld.at
category:            Distribution
build-type:          Simple
cabal-version:       2.0
extra-source-files:  README.md
                     src/CabalHelper/Runtime/*.hs

                     tests/*.hs

                     tests/exelib/*.hs
                     tests/exelib/*.cabal
                     tests/exelib/lib/*.hs

                     tests/exeintlib/*.hs
                     tests/exeintlib/*.cabal
                     tests/exeintlib/lib/*.hs
                     tests/exeintlib/intlib/*.hs

                     tests/fliblib/*.hs
                     tests/fliblib/*.cabal
                     tests/fliblib/lib/*.hs

                     tests/bkpregex/*.cabal
                     tests/bkpregex/*.hs
                     tests/bkpregex/regex-example/*.hs
                     tests/bkpregex/regex-indef/*.hs
                     tests/bkpregex/regex-indef/*.hsig
                     tests/bkpregex/regex-types/Regex/*.hs
                     tests/bkpregex/str-impls/Str/*.hs

source-repository head
  type:     git
  location: https://github.com/DanielG/cabal-helper.git

flag dev
  description: Build development components
  default:     False
  manual:      True


-- [Note test dependencies] Vaious tests need access to modules used in other
-- components, unfortunately we can't use Cabal 2.0's new internal libraries for
-- this because we'd like to support ancient Cabal versions. Instead we just
-- copy 'hs-source-dirs', 'build-depends' and 'other-modules' fields as
-- appropriate.
--
-- The following awk command will copy paragraphs starting with:
--     -- Common some-name
-- to following paragraphs starting with:
--     -- Instantiate common some-name
--
-- $ gawk -i inplace -f scripts/update-cabal-common-section-instantiations.awk cabal-helper.cabal
--
-- FIXME: We can use Cabal 2.0 features now, yey!

library
  default-language:    Haskell2010
  default-extensions:  NondecreasingIndentation
  hs-source-dirs:      lib, src
  exposed-modules:     Distribution.Helper
  other-modules:
                       CabalHelper.Compiletime.Compat.Environment
                       CabalHelper.Compiletime.Compat.ProgramDb
                       CabalHelper.Compiletime.Compat.Version
                       CabalHelper.Compiletime.Compile
                       CabalHelper.Compiletime.Data
                       CabalHelper.Compiletime.Types
                       CabalHelper.Shared.Common
                       CabalHelper.Shared.InterfaceTypes
                       CabalHelper.Shared.Sandbox
                       Paths_cabal_helper

  autogen-modules:
                       Paths_cabal_helper

  ghc-options:         -Wall

  build-depends:       base             < 5    && >= 4.7
  build-depends:       Cabal            < 2.5  && >= 2.0     || < 1.26 && >= 1.14
                     , cabal-plan       < 0.5  && >= 0.3.0.0
                     , containers       < 1    && >= 0.5.5.1
                     , bytestring       < 0.11 && >= 0.9.2.1
                     , directory        < 1.4  && >= 1.2.1.0
                     , filepath         < 1.5  && >= 1.3.0.0
                     , mtl              < 2.3  && >= 2.0
                     , process          < 1.7  && >= 1.1.0.1
                     , pretty-show      < 1.9  && >= 1.8.1
                     , semigroupoids    < 5.3  && >= 5.2
                     , SHA              < 1.7  && >= 1.6.4.4
                     , text             < 1.3  && >= 1.0.0.0
                     , template-haskell < 2.14 && >= 2.7.0.0
                     , temporary        < 1.3  && >= 1.2.1
                     , transformers     < 0.6  && >= 0.3.0.0
  if !os(windows)
    build-depends:     unix             < 2.8  && >= 2.5.1.1
  build-depends:       unix-compat      < 0.6  && >= 0.4.3.1
                     , utf8-string      < 1.1  && >= 1.0.1.1

  build-tools:         cabal
  build-tool-depends:  cabal-install:cabal


test-suite compile-test
  type:                exitcode-stdio-1.0
  main-is:             CompileTest.hs
  hs-source-dirs:      tests
  ghc-options:         -Wall

  -- Common c-h-wrapper-fields -- See [Note test dependencies]
  default-language:    Haskell2010
  default-extensions:  NondecreasingIndentation
  other-extensions:    TemplateHaskell
  hs-source-dirs:      src
  other-modules:
                       CabalHelper.Compiletime.Compat.Environment
                       CabalHelper.Compiletime.Compat.ProgramDb
                       CabalHelper.Compiletime.Compat.Version
                       CabalHelper.Compiletime.Compile
                       CabalHelper.Compiletime.Data
                       CabalHelper.Compiletime.Types
                       CabalHelper.Shared.Common
                       CabalHelper.Shared.InterfaceTypes
                       CabalHelper.Shared.Sandbox
                       Paths_cabal_helper
  build-tool-depends:  cabal-install:cabal
  build-tools:         cabal
  build-depends:       base             < 5    && >= 4.7
  if os(windows)
    build-depends:     base                       >= 4.7
  build-depends:       Cabal            < 2.5  && >= 2.0 || < 1.26 && >= 1.14
                     , cabal-plan       < 0.5  && >= 0.3.0.0
                     , containers       < 1    && >= 0.5.5.1
                     , bytestring       < 0.11 && >= 0.9.2.1
                     , directory        < 1.4  && >= 1.2.1.0
                     , filepath         < 1.5  && >= 1.3.0.0
                     , mtl              < 2.3  && >= 2.0
                     , process          < 1.7  && >= 1.1.0.1
                     , pretty-show      < 1.9  && >= 1.8.1
                     , SHA              < 1.7  && >= 1.6.4.4
                     , text             < 1.3  && >= 1.0.0.0
                     , template-haskell < 2.14 && >= 2.7.0.0
                     , temporary        < 1.3  && >= 1.2.1
                     , transformers     < 0.6  && >= 0.3.0.0
  if !os(windows)
    build-depends:     unix             < 2.8  && >= 2.5.1.1
  build-depends:       unix-compat      < 0.6  && >= 0.4.3.1
                     , utf8-string      < 1.1  && >= 1.0.1.1


test-suite ghc-session
  type:                exitcode-stdio-1.0
  main-is:             GhcSession.hs
  hs-source-dirs:      tests
  ghc-options:         -Wall
  build-depends:       base             < 5    && >= 4.7
                     , ghc              < 8.5  && >= 7.10
                     , ghc-paths        < 0.2  && >= 0.1.0.9
                     , cabal-helper

  -- Instantiate common c-h-wrapper-fields -- See [Note test dependencies]
  default-language:    Haskell2010
  default-extensions:  NondecreasingIndentation
  other-extensions:    TemplateHaskell
  hs-source-dirs:      src
  other-modules:
                       CabalHelper.Compiletime.Compat.Environment
                       CabalHelper.Compiletime.Compat.ProgramDb
                       CabalHelper.Compiletime.Compat.Version
                       CabalHelper.Compiletime.Compile
                       CabalHelper.Compiletime.Data
                       CabalHelper.Compiletime.Types
                       CabalHelper.Shared.Common
                       CabalHelper.Shared.InterfaceTypes
                       CabalHelper.Shared.Sandbox
                       Paths_cabal_helper
  build-tool-depends:  cabal-install:cabal
  build-tools:         cabal
  build-depends:       base             < 5    && >= 4.7
  if os(windows)
    build-depends:     base                       >= 4.7
  build-depends:       Cabal            < 2.5  && >= 2.0 || < 1.26 && >= 1.14
                     , cabal-plan       < 0.5  && >= 0.3.0.0
                     , containers       < 1    && >= 0.5.5.1
                     , bytestring       < 0.11 && >= 0.9.2.1
                     , directory        < 1.4  && >= 1.2.1.0
                     , filepath         < 1.5  && >= 1.3.0.0
                     , mtl              < 2.3  && >= 2.0
                     , process          < 1.7  && >= 1.1.0.1
                     , pretty-show      < 1.9  && >= 1.8.1
                     , SHA              < 1.7  && >= 1.6.4.4
                     , text             < 1.3  && >= 1.0.0.0
                     , template-haskell < 2.14 && >= 2.7.0.0
                     , temporary        < 1.3  && >= 1.2.1
                     , transformers     < 0.6  && >= 0.3.0.0
  if !os(windows)
    build-depends:     unix             < 2.8  && >= 2.5.1.1
  build-depends:       unix-compat      < 0.6  && >= 0.4.3.1
                     , utf8-string      < 1.1  && >= 1.0.1.1



executable cabal-helper-main
  default-language:    Haskell2010
  default-extensions:  NondecreasingIndentation
  main-is:             CabalHelper/Runtime/Main.hs
  hs-source-dirs:      src
  other-modules:
                       CabalHelper.Runtime.Compat
                       CabalHelper.Shared.Common
                       CabalHelper.Shared.InterfaceTypes
                       CabalHelper.Shared.Sandbox
                       CabalHelper.Shared.Common

  -- This component is usually built at runtime but during development it's
  -- convinient to build it via cabal
  if flag(dev)
    buildable:         True
  else
    buildable:         False

  -- Common c-h-main-fields -- See [Note test dependencies]
  ghc-options:         -Wall -fno-warn-unused-imports
  build-depends:       base             < 5    && >= 4.7
                     , Cabal
                     , containers
                     , bytestring
                     , filepath
                     , directory
                     , ghc-prim