👷 Swap to simpler Nix flake–based environment

default.nix

@@ -1,7 +1,7 @@
-{ mkDerivation, base, Cabal, extra, monad-loops, MonadRandom
+{ mkDerivation, base, Cabal, cassava, extra, lib, monad-loops
-, optparse-applicative, pipes, protolude, QuickCheck
+, MonadRandom, optparse-applicative, pipes, protolude, QuickCheck
-, quickcheck-instances, random, random-fu, random-shuffle, stdenv
+, quickcheck-instances, random, random-fu, random-shuffle, text
-, text
+, wl-pprint-text
 }:
 mkDerivation {
   pname = "haga";
@@ -10,15 +10,16 @@ mkDerivation {
   isLibrary = true;
   isExecutable = true;
   libraryHaskellDepends = [
-    base extra monad-loops MonadRandom optparse-applicative pipes
+    base cassava extra monad-loops MonadRandom optparse-applicative
-    protolude QuickCheck quickcheck-instances random random-fu
+    pipes protolude QuickCheck quickcheck-instances random random-fu
-    random-shuffle text
+    random-shuffle text wl-pprint-text
   ];
   executableHaskellDepends = [
-    base Cabal extra monad-loops MonadRandom optparse-applicative pipes
+    base Cabal cassava extra monad-loops MonadRandom
-    protolude QuickCheck quickcheck-instances random random-fu
+    optparse-applicative pipes protolude QuickCheck
-    random-shuffle text
+    quickcheck-instances random random-fu random-shuffle text
+    wl-pprint-text
   ];
   description = "Simplistic genetic algorithms library";
-  license = stdenv.lib.licenses.gpl3;
+  license = lib.licenses.gpl3Only;
 }

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1655624069,
+        "narHash": "sha256-7g1zwTdp35GMTERnSzZMWJ7PG3QdDE8VOX3WsnOkAtM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0d68d7c857fe301d49cdcd56130e0beea4ecd5aa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0d68d7c857fe301d49cdcd56130e0beea4ecd5aa",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,24 @@
+{
+  description = "Flake for haga";
+  inputs = {
+    nixpkgs.url =
+      # 2022-06-22
+      "github:NixOS/nixpkgs/0d68d7c857fe301d49cdcd56130e0beea4ecd5aa";
+
+  };
+
+  outputs = inputs@{ self, nixpkgs }:
+    with import nixpkgs {
+      system = "x86_64-linux";
+    }; {
+      # defaultPackage.${system} = haskellPackages.callPackage ./default.nix { };
+      devShell.${system} = mkShell {
+        buildInputs = [
+          feedgnuplot
+          haskellPackages.cabal-install
+          haskellPackages.ormolu
+          haskell.compiler.ghc8107
+        ];
+      };
+    };
+}

haga.cabal

@@ -20,7 +20,8 @@ category:            Optimization
 build-type:          Simple
 
 library
-  build-depends:       base ^>=4.13.0.0
+  build-depends:       base ^>=4.14.0.0
+                     , cassava
                      , extra
                      , MonadRandom
                      , monad-loops
@@ -30,9 +31,11 @@ library
                      , QuickCheck
                      , quickcheck-instances
                      , random
-                     , random-fu
+                     -- 0.3.0.0 introduces at least one truly breaking change.
+                     , random-fu <0.3.0.0
                      , random-shuffle
                      , text
+                     , wl-pprint-text
   default-language:    Haskell2010
   ghc-options:         -Wall -Wno-name-shadowing -Wno-orphans
   hs-source-dirs:      src
@@ -40,9 +43,12 @@ library
                      , Seminar
                      , Pretty
                      , Szenario191
+                     , Szenario202
+                     , Analysis
 
 executable haga
-  build-depends:       base ^>=4.13.0.0
+  build-depends:       base ^>=4.14.0.0
+                     , cassava
                      , extra
                      , MonadRandom
                      , monad-loops
@@ -52,9 +58,11 @@ executable haga
                      , QuickCheck
                      , quickcheck-instances
                      , random
-                     , random-fu
+                     -- 0.3.0.0 introduces at least one truly breaking change.
+                     , random-fu <0.3.0.0
                      , random-shuffle
                      , text
+                     , wl-pprint-text
   default-language:    Haskell2010
   ghc-options:         -Wall -Wno-name-shadowing -Wno-orphans
   hs-source-dirs:      src
@@ -63,9 +71,11 @@ executable haga
                      , Seminar
                      , Pretty
                      , Szenario191
+                     , Szenario202
 
 executable haga-test
-  build-depends:       base ^>=4.13.0.0
+  build-depends:       base ^>=4.14.0.0
+                     , cassava
                      , Cabal
                      , extra
                      , MonadRandom
@@ -76,9 +86,11 @@ executable haga-test
                      , QuickCheck
                      , quickcheck-instances
                      , random
-                     , random-fu
+                     -- 0.3.0.0 introduces at least one truly breaking change.
+                     , random-fu <0.3.0.0
                      , random-shuffle
                      , text
+                     , wl-pprint-text
   default-language:    Haskell2010
   ghc-options:         -Wall -Wno-name-shadowing -Wno-orphans
   hs-source-dirs:      src

haga.md

@@ -0,0 +1,17 @@
+# Building
+
+
+```
+nix develop
+cabal update
+cabal build
+```
+
+
+# Running
+
+
+```
+nix develop
+fish run
+```

haga.org

@@ -1,11 +1,12 @@
 * PROJECT haga
-** TODO see TODOs in code
+** TODO See TODOs in code
 ** MAYBE Add factory floor optimizer
    GA that optimizes factory floor
    - data: graph of workstations with edge weights being the number of walks
      between them
    - desired: optimal configuration that reduces crossings
    - space: 15 workstations that can be positioned in a 20 x 20 space
+** MAYBE Implement simple lcs in haga
 * Unsorted ideas
   - https://github.com/mikeizbicki/HerbiePlugin
   - https://github.com/mikeizbicki/subhask

run

@@ -1,9 +1,10 @@
 #! /usr/bin/env nix-shell
-#! nix-shell -i fish -p fish feedgnuplot
+
 
 set exe (fd --type f  '^haga$' dist-newstyle/)
 
-"$exe" $argv | \
+
+"$exe" --iterations=10000 $argv | \
     # dist-newstyle/build/x86_64-linux/ghc-8.6.5/ga-0.1.0.0/x/ga/build/ga/ga $argv | \
     feedgnuplot \
     --terminal "x11 background '#ffffff'" \