|
| 1 | +{ |
| 2 | + description = "Parsers and algorithms for computational chemistry logfiles (regression data)"; |
| 3 | + |
| 4 | + inputs = { |
| 5 | + nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable"; |
| 6 | + flake-utils.url = "github:numtide/flake-utils"; |
| 7 | + }; |
| 8 | + |
| 9 | + outputs = |
| 10 | + { |
| 11 | + self, |
| 12 | + nixpkgs, |
| 13 | + flake-utils, |
| 14 | + }: |
| 15 | + let |
| 16 | + /* |
| 17 | + Change this value ({major}.{min}) to |
| 18 | + update the Python virtual-environment |
| 19 | + version. When you do this, make sure |
| 20 | + to delete the `.venv` directory to |
| 21 | + have the hook rebuild it for the new |
| 22 | + version, since it won't overwrite an |
| 23 | + existing one. After this, reload the |
| 24 | + development shell to rebuild it. |
| 25 | + You'll see a warning asking you to |
| 26 | + do this when version mismatches are |
| 27 | + present. For safety, removal should |
| 28 | + be a manual step, even if trivial. |
| 29 | + */ |
| 30 | + version = "3.13"; |
| 31 | + in |
| 32 | + flake-utils.lib.eachDefaultSystem ( |
| 33 | + system: |
| 34 | + let |
| 35 | + pkgs = import nixpkgs { inherit system; }; |
| 36 | + in |
| 37 | + { |
| 38 | + devShells.default = |
| 39 | + let |
| 40 | + concatMajorMinor = |
| 41 | + v: |
| 42 | + pkgs.lib.pipe v [ |
| 43 | + pkgs.lib.versions.splitVersion |
| 44 | + (pkgs.lib.sublist 0 2) |
| 45 | + pkgs.lib.concatStrings |
| 46 | + ]; |
| 47 | + python = pkgs."python${concatMajorMinor version}"; |
| 48 | + in |
| 49 | + pkgs.mkShellNoCC { |
| 50 | + venvDir = ".venv"; |
| 51 | + |
| 52 | + postShellHook = '' |
| 53 | + venvVersionWarn() { |
| 54 | + local venvVersion |
| 55 | + venvVersion="$("$venvDir/bin/python" -c 'import platform; print(platform.python_version())')" |
| 56 | +
|
| 57 | + [[ "$venvVersion" == "${python.version}" ]] && return |
| 58 | +
|
| 59 | + cat <<EOF |
| 60 | + Warning: Python version mismatch: [$venvVersion (venv)] != [${python.version}] |
| 61 | + Delete '$venvDir' and reload to rebuild for version ${python.version} |
| 62 | + EOF |
| 63 | + } |
| 64 | +
|
| 65 | + venvVersionWarn |
| 66 | + ''; |
| 67 | + |
| 68 | + packages = [ |
| 69 | + pkgs.coreutils |
| 70 | + pkgs.diffutils |
| 71 | + pkgs.patch |
| 72 | + python.pkgs.pip |
| 73 | + python.pkgs.ruamel-yaml |
| 74 | + python.pkgs.venvShellHook |
| 75 | + ]; |
| 76 | + }; |
| 77 | + } |
| 78 | + ); |
| 79 | +} |
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