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Amy de Buitléir 2025-09-15 18:08:42 +01:00
parent d351582364
commit c6d4fff7c6
5 changed files with 100 additions and 69 deletions
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7
source/recipes/devshell/haskell-pkg/main.adoc0
View file

@ -21,12 +21,17 @@ it's usually more convenient to use `haskell-flake` as described in <<#haskell-f
together with the _high-level workflow_ described in <<_development_workflows>>.
====
[source,nix,linenums,highlight='11,16']
[source,nix,linenums,highlight='5,8,12,17']
.flake.nix
....
include::flake.nix[]
....
Line 5 adds `pandoc-columns` as an input to this flake.
Line 8 allows the output function to reference `pandoc-columns`.
Line 12 makes a custom GHC that knows about `pandoc-columns`,
and line 17 uses the custom GHC as a build input for this flake.
Here's a short Haskell program that uses it.
[source,haskell,linenums]

6
source/recipes/devshell/haskell-pkg/tempwork/Main.hs Normal file
View file

@ -0,0 +1,6 @@
import Text.Pandoc.Filters.Columns
main :: IO ()
main = do
putStrLn "Prove we have access to the pandoc-columns package"
print $ defaultColSpec

136
source/recipes/devshell/flake/tempwork/flake.lock → source/recipes/devshell/haskell-pkg/tempwork/flake.lock generated
View file

@ -1,5 +1,23 @@
{
"nodes": {
"flake-parts": {
"inputs": {
"nixpkgs-lib": "nixpkgs-lib"
},
"locked": {
"lastModified": 1756770412,
"narHash": "sha256-+uWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw=",
"owner": "hercules-ci",
"repo": "flake-parts",
"rev": "4524271976b625a4a605beefd893f270620fd751",
"type": "github"
},
"original": {
"owner": "hercules-ci",
"repo": "flake-parts",
"type": "github"
}
},
"flake-utils": {
"inputs": {
"systems": "systems"
@ -18,59 +36,22 @@
"type": "github"
}
},
"flake-utils_2": {
"inputs": {
"systems": "systems_2"
},
"haskell-flake": {
"locked": {
"lastModified": 1731533236,
"narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
"lastModified": 1756607542,
"narHash": "sha256-+99fEAk0HwjYgIW2tEOs7ayBDxnU9NAM5E29ZxgyX40=",
"owner": "srid",
"repo": "haskell-flake",
"rev": "73e3891fb135c679a1c30fae4b101e5b41b8ca61",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"owner": "srid",
"repo": "haskell-flake",
"type": "github"
}
},
"hello-flake": {
"inputs": {
"flake-utils": "flake-utils_2",
"nixpkgs": "nixpkgs"
},
"locked": {
"lastModified": 1757875192,
"narHash": "sha256-JBkm6NAOYjR3Sc3BxJ2ijrTqW8Ga0NlN9GPUJ/NUsGM=",
"ref": "refs/heads/main",
"rev": "2d9363f255c44a41be2e5291dd624e078e7f4139",
"revCount": 25,
"type": "git",
"url": "https://codeberg.org/mhwombat/hello-flake"
},
"original": {
"type": "git",
"url": "https://codeberg.org/mhwombat/hello-flake"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1757873102,
"narHash": "sha256-kYhNxLlYyJcUouNRazBufVfBInMWMyF+44xG/xar2yE=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "88cef159e47c0dc56f151593e044453a39a6e547",
"type": "github"
},
"original": {
"owner": "NixOS",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs_2": {
"locked": {
"lastModified": 1757952092,
"narHash": "sha256-BcfTLFCU7elUJ2dwyt0iTjxsz/XLh+8ZygDcFwy6xPE=",
@ -85,29 +66,62 @@
"type": "github"
}
},
"root": {
"inputs": {
"flake-utils": "flake-utils",
"hello-flake": "hello-flake",
"nixpkgs": "nixpkgs_2"
}
},
"systems": {
"nixpkgs-lib": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"lastModified": 1754788789,
"narHash": "sha256-x2rJ+Ovzq0sCMpgfgGaaqgBSwY+LST+WbZ6TytnT9Rk=",
"owner": "nix-community",
"repo": "nixpkgs.lib",
"rev": "a73b9c743612e4244d865a2fdee11865283c04e6",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"owner": "nix-community",
"repo": "nixpkgs.lib",
"type": "github"
}
},
"systems_2": {
"nixpkgs_2": {
"locked": {
"lastModified": 1756911493,
"narHash": "sha256-6n/n1GZQ/vi+LhFXMSyoseKdNfc2QQaSBXJdgamrbkE=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "c6a788f552b7b7af703b1a29802a7233c0067908",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixpkgs-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"pandoc-columns": {
"inputs": {
"flake-parts": "flake-parts",
"haskell-flake": "haskell-flake",
"nixpkgs": "nixpkgs_2"
},
"locked": {
"lastModified": 1757244346,
"narHash": "sha256-Ewpv8f+CvF0du1egjRJoeOZhKsdoqPkb2ecrwTPI+os=",
"path": "/home/amy/github/pandoc-columns",
"type": "path"
},
"original": {
"path": "/home/amy/github/pandoc-columns",
"type": "path"
}
},
"root": {
"inputs": {
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs",
"pandoc-columns": "pandoc-columns"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",

7
source/recipes/devshell/flake/tempwork/flake.nix → source/recipes/devshell/haskell-pkg/tempwork/flake.nix
View file

@ -2,18 +2,19 @@
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs";
flake-utils.url = "github:numtide/flake-utils";
hello-flake.url = "git+https://codeberg.org/mhwombat/hello-flake";
pandoc-columns.url = "/home/amy/github/pandoc-columns";
};
outputs = { self, nixpkgs, flake-utils, hello-flake }:
outputs = { self, nixpkgs, flake-utils, pandoc-columns }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs { inherit system; };
customGhc = pkgs.haskellPackages.ghcWithPackages (p: with p; [ pandoc-columns ]);
in
{
devShells = rec {
default = pkgs.mkShell {
buildInputs = [ hello-flake.packages.${system}.hello ];
buildInputs = [ customGhc ];
};
};
}