88dfade94b
By replacing upstream's pg_config binary with a shell script, we: - gain the ability to run pg_config easily when cross-compiling, - can remove the fake pg_config in the default output, - can remove the pg_config wrapper script dealing with special cases. Some 20 years ago, pg_config *was* a shell script upstream, too. It was changed to a binary, when it was made "relocatable", so it would return paths depending on the location of the "postgres" binary. However, this is exactly the thing that just hurts us in nixpkgs - we don't want those paths to change, we want them to always point at the right outputs. By writing the script ourselves, this becomes a lot less painful. This approach means more lines of codes, but all of them are dead simple and we have a lot less complexity overall. Additionally, pg_config is now made a separate derivation, only exposed as "postgresql.pg_config". This has the nice side-effect, that all users of postgresql and libpq in nixpkgs must be very *explicit* about their dependency on pg_config. This gives a lot more visibility into the state of affairs regarding pkg-config support for libpq, which ultimately is the much better solution.
72 lines
1.4 KiB
Nix
72 lines
1.4 KiB
Nix
{
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buildPythonPackage,
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cffi,
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fetchFromGitHub,
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lib,
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libpq,
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postgresql,
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postgresqlTestHook,
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pytestCheckHook,
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setuptools,
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six,
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stdenv,
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}:
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buildPythonPackage rec {
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pname = "psycopg2cffi";
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version = "2.9.0";
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pyproject = true;
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src = fetchFromGitHub {
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owner = "chtd";
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repo = "psycopg2cffi";
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tag = version;
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hash = "sha256-9r5MYxw9cvdbLVj8StmMmn0AKQepOpCc7TIBGXZGWe4=";
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};
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postPatch = ''
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substituteInPlace psycopg2cffi/_impl/_build_libpq.py \
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--replace-fail "from distutils import sysconfig" "import sysconfig" \
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--replace-fail "sysconfig.get_python_inc()" "sysconfig.get_path('include')"
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'';
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buildInputs = [ libpq ];
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nativeBuildInputs = [ libpq.pg_config ];
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build-system = [
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setuptools
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];
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dependencies = [
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cffi
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six
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];
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# FATAL: could not create shared memory segment: Operation not permitted
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doCheck = !stdenv.hostPlatform.isDarwin;
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nativeCheckInputs = [
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postgresql
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postgresqlTestHook
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pytestCheckHook
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];
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disabledTests = [
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# AssertionError: '{}' != []
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"testEmptyArray"
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];
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env = {
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PGDATABASE = "psycopg2_test";
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};
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pythonImportsCheck = [ "psycopg2cffi" ];
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meta = with lib; {
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description = "Implementation of the psycopg2 module using cffi";
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homepage = "https://pypi.org/project/psycopg2cffi/";
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license = with licenses; [ lgpl3Plus ];
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maintainers = with maintainers; [ lovesegfault ];
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};
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}
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