Re-add stack

package.yaml

@@ -0,0 +1,49 @@
+name:                simplex-method
+version:             0.1.0.0
+github:              "rasheedja/simplex-method"
+license:             BSD3
+author:              "Junaid Rasheed"
+maintainer:          "[email protected]"
+copyright:           "BSD-3"
+
+extra-source-files:
+- README.md
+- ChangeLog.md
+
+# Metadata used when publishing your package
+synopsis:            Implementation of the two-phase simplex method in exact rational arithmetic
+category:            Math, Maths, Mathematics, Optimisation, Optimization, Linear Programming
+
+# To avoid duplicated efforts in documentation and dealing with the
+# complications of embedding Haddock markup inside cabal files, it is
+# common to point users to the README.md file.
+description:         Please see the README on GitHub at <https://github.com/rasheedja/simplex-method#readme>
+
+dependencies:
+- base >= 4.14 && < 5
+- containers >= 0.6.5.1 && < 0.7
+- generic-lens >= 2.2.0 && < 2.3 
+- lens >= 5.1.0 && < 5.2
+
+default-extensions:
+  DataKinds
+  DeriveFunctor
+  DeriveGeneric
+  DuplicateRecordFields
+  FlexibleContexts
+  LambdaCase
+  OverloadedLabels
+  RecordWildCards
+  TupleSections
+  TypeApplications
+  ImportQualifiedPost
+
+library:
+  source-dirs: src
+
+tests:
+  simplex-haskell-test:
+    main:                Spec.hs
+    source-dirs:         test
+    dependencies:
+    - simplex-method

simplex-method.cabal

@@ -1,6 +1,6 @@
-cabal-version: 3.6
+cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.34.4.
+-- This file has been generated from package.yaml by hpack version 0.35.1.
 --
 -- see: https://github.com/sol/hpack
 
@@ -14,7 +14,7 @@ bug-reports:    https://github.com/rasheedja/simplex-method/issues
 author:         Junaid Rasheed
 maintainer:     [email protected]
 copyright:      BSD-3
-license:        BSD-3-Clause
+license:        BSD3
 license-file:   LICENSE
 build-type:     Simple
 extra-source-files:
@@ -25,45 +25,39 @@ source-repository head
   type: git
   location: https://github.com/rasheedja/simplex-method
 
-common common-extensions
-  default-extensions:
-    DataKinds
-    DeriveFunctor
-    DeriveGeneric
-    DuplicateRecordFields
-    FlexibleContexts
-    LambdaCase
-    OverloadedLabels
-    RecordWildCards
-    TupleSections
-    TypeApplications
-    ImportQualifiedPost
 library
-  import: common-extensions
   exposed-modules:
       Linear.Simplex.Prettify
       Linear.Simplex.Simplex
       Linear.Simplex.Types
       Linear.Simplex.Util
+  other-modules:
+      Paths_simplex_method
   hs-source-dirs:
       src
+  default-extensions:
+      DataKinds DeriveFunctor DeriveGeneric DuplicateRecordFields FlexibleContexts LambdaCase OverloadedLabels RecordWildCards TupleSections TypeApplications ImportQualifiedPost
   build-depends:
-      base
-    , containers
-    , generic-lens  
-    , lens
+      base >=4.14 && <5
+    , containers >=0.6.5.1 && <0.7
+    , generic-lens >=2.2.0 && <2.3
+    , lens >=5.1.0 && <5.2
   default-language: Haskell2010
 
 test-suite simplex-haskell-test
-  import: common-extensions
   type: exitcode-stdio-1.0
   main-is: Spec.hs
   other-modules:
       TestFunctions
+      Paths_simplex_method
   hs-source-dirs:
       test
+  default-extensions:
+      DataKinds DeriveFunctor DeriveGeneric DuplicateRecordFields FlexibleContexts LambdaCase OverloadedLabels RecordWildCards TupleSections TypeApplications ImportQualifiedPost
   build-depends:
-      base >=4.7 && <5
+      base >=4.14 && <5
+    , containers >=0.6.5.1 && <0.7
+    , generic-lens >=2.2.0 && <2.3
+    , lens >=5.1.0 && <5.2
     , simplex-method
-    , containers
   default-language: Haskell2010

stack.yaml

@@ -0,0 +1,68 @@
+# This file was automatically generated by 'stack init'
+#
+# Some commonly used options have been documented as comments in this file.
+# For advanced use and comprehensive documentation of the format, please see:
+# https://docs.haskellstack.org/en/stable/yaml_configuration/
+
+# Resolver to choose a 'specific' stackage snapshot or a compiler version.
+# A snapshot resolver dictates the compiler version and the set of packages
+# to be used for project dependencies. For example:
+#
+# resolver: lts-3.5
+# resolver: nightly-2015-09-21
+# resolver: ghc-7.10.2
+#
+# The location of a snapshot can be provided as a file or url. Stack assumes
+# a snapshot provided as a file might change, whereas a url resource does not.
+#
+# resolver: ./custom-snapshot.yaml
+# resolver: https://example.com/snapshots/2018-01-01.yaml
+resolver: lts-20.26
+
+# User packages to be built.
+# Various formats can be used as shown in the example below.
+#
+# packages:
+# - some-directory
+# - https://example.com/foo/bar/baz-0.0.2.tar.gz
+#   subdirs:
+#   - auto-update
+#   - wai
+packages:
+- .
+# Dependency packages to be pulled from upstream that are not in the resolver.
+# These entries can reference officially published versions as well as
+# forks / in-progress versions pinned to a git hash. For example:
+#
+# extra-deps:
+# - acme-missiles-0.3
+# - git: https://github.com/commercialhaskell/stack.git
+#   commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#
+# extra-deps: {}
+
+# Override default flag values for local packages and extra-deps
+# flags: {}
+
+# Extra package databases containing global packages
+# extra-package-dbs: []
+
+# Control whether we use the GHC we find on the path
+# system-ghc: true
+#
+# Require a specific version of stack, using version ranges
+# require-stack-version: -any # Default
+# require-stack-version: ">=2.5"
+#
+# Override the architecture used by stack, especially useful on Windows
+# arch: i386
+# arch: x86_64
+#
+# Extra directories used by stack for building
+# extra-include-dirs: [/path/to/dir]
+# extra-lib-dirs: [/path/to/dir]
+#
+# Allow a newer minor version of GHC than the snapshot specifies
+# compiler-check: newer-minor
+
+system-ghc: true

stack.yaml.lock

@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: 5a59b2a405b3aba3c00188453be172b85893cab8ebc352b1ef58b0eae5d248a2
+    size: 650475
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/26.yaml
+  original: lts-20.26