nixpkgs/pkgs/applications/video/pyca/default.nix
adisbladis e0816431a2 treewide: Pass self when overriding Python
Otherwise references to the Python interpreter inside the set are wrong, as demonstrated by:
``` nix
with import <nixpkgs> { };
let
  python' = python3.override {
    packageOverrides = final: prev: { requests = prev.requests.overridePythonAttrs(old: { version = "1337";  }); };
  };
in python'.pkgs.python.pkgs.requests
```
which returns the _non_ overriden requests.

And the same with `self`:
```
with import <nixpkgs> { };
let
  python' = python3.override {
    self = python';
    packageOverrides = final: prev: { requests = prev.requests.overridePythonAttrs(old: { version = "1337";  }); };
  };
in python'.pkgs.python.pkgs.requests
```
which returns the overriden requests.

This can manifest itself as file collisions when constructing environments or as subtly incorrect dependency graphs.
2024-08-03 12:18:56 +12:00

83 lines
1.7 KiB
Nix

{ lib
, python3
, buildNpmPackage
, fetchFromGitHub
, jq
, stdenv
}:
let
python = python3.override {
self = python;
packageOverrides = self: super: {
# pyCA is incompatible with SQLAlchemy 2.0
sqlalchemy = super.sqlalchemy_1_4;
};
};
frontend = buildNpmPackage rec {
pname = "pyca";
version = "4.5";
src = fetchFromGitHub {
owner = "opencast";
repo = "pyCA";
rev = "v${version}";
sha256 = "sha256-cTkWkOmgxJZlddqaSYKva2wih4Mvsdrd7LD4NggxKQk=";
};
npmDepsHash = "sha256-0U+semrNWTkNu3uQQkiJKZT1hB0/IfkL84G7/oP8XYY=";
nativeBuildInputs = [ jq python ];
postPatch = ''
${jq}/bin/jq '. += {"version": "${version}"}' < package.json > package.json.tmp
mv package.json.tmp package.json
'';
installPhase = ''
mkdir -p $out/static
cp -R pyca/ui/static/* $out/static/
'';
};
in
python3.pkgs.buildPythonApplication rec {
pname = "pyca";
version = "4.5";
src = fetchFromGitHub {
owner = "opencast";
repo = "pyCA";
rev = "v${version}";
sha256 = "sha256-cTkWkOmgxJZlddqaSYKva2wih4Mvsdrd7LD4NggxKQk=";
};
propagatedBuildInputs = with python.pkgs; [
pycurl
python-dateutil
configobj
sqlalchemy
sdnotify
psutil
flask
prometheus-client
];
postPatch = ''
sed -i -e 's#static_folder=.*#static_folder="${frontend}/static")#' pyca/ui/__init__.py
'';
passthru = {
inherit frontend;
};
meta = with lib; {
broken = stdenv.isDarwin;
description = "Fully functional Opencast capture agent written in Python";
mainProgram = "pyca";
homepage = "https://github.com/opencast/pyCA";
license = licenses.lgpl3;
maintainers = with maintainers; [ pmiddend ];
};
}