Add the conda package manager

pkgs/by-name/li/libmamba/package.nix

@@ -0,0 +1,60 @@
+{
+  fetchFromGitHub,
+  lib,
+  stdenv,
+  cmake,
+  fmt,
+  spdlog,
+  tl-expected,
+  nlohmann_json,
+  yaml-cpp,
+  simdjson,
+  reproc,
+  libsolv,
+  curl,
+  libarchive,
+  zstd,
+  bzip2,
+  python3Packages,
+}:
+stdenv.mkDerivation rec {
+  pname = "libmamba";
+  version = "1.5.7";
+  src = fetchFromGitHub {
+    owner = "mamba-org";
+    repo = "mamba";
+    rev = "${pname}-${version}";
+    hash = "sha256-HfmvLi9IBWlaGAn2Ej4Bnm4b3l19jEXwNl5IUkdVxi0=";
+  };
+  nativeBuildInputs = [
+    cmake
+    python3Packages.python
+  ];
+  buildInputs = [
+    fmt
+    spdlog
+    tl-expected
+    nlohmann_json
+    yaml-cpp
+    simdjson
+    reproc
+    libsolv
+    curl
+    libarchive
+    zstd
+    bzip2
+  ];
+
+  cmakeFlags = [
+    (lib.cmakeBool "BUILD_LIBMAMBA" true)
+    (lib.cmakeBool "BUILD_SHARED" true)
+  ];
+
+  meta = {
+    description = "The library for the fast Cross-Platform Package Manager";
+    homepage = "https://github.com/mamba-org/mamba";
+    license = lib.licenses.bsd3;
+    platforms = lib.platforms.all;
+    maintainers = [ lib.maintainers.ericthemagician ];
+  };
+}

pkgs/development/libraries/libsolv/default.nix

@@ -13,6 +13,7 @@
 , withRpm ? !stdenv.isDarwin
 , rpm
 , db
+, withConda ? true
 }:
 
 stdenv.mkDerivation rec {
@@ -23,11 +24,12 @@ stdenv.mkDerivation rec {
     owner = "openSUSE";
     repo = "libsolv";
     rev = version;
-    sha256 = "sha256-cL7SDwCzXM2qJQfiu/3nfAiFbcFNn1YXD23Sl3n9nzY=";
+    hash = "sha256-cL7SDwCzXM2qJQfiu/3nfAiFbcFNn1YXD23Sl3n9nzY=";
   };
 
   cmakeFlags = [
     "-DENABLE_COMPLEX_DEPS=true"
+    (lib.cmakeBool "ENABLE_CONDA" withConda)
     "-DENABLE_LZMA_COMPRESSION=true"
     "-DENABLE_BZIP2_COMPRESSION=true"
     "-DENABLE_ZSTD_COMPRESSION=true"

pkgs/development/python-modules/conda-libmamba-solver/default.nix

@@ -0,0 +1,47 @@
+{
+  lib,
+  buildPythonPackage,
+  pythonRelaxDepsHook,
+  fetchFromGitHub,
+  libmambapy,
+  hatchling,
+  hatch-vcs,
+  boltons,
+}:
+buildPythonPackage rec {
+  pname = "conda-libmamba-solver";
+  version = "24.1.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    inherit pname version;
+    owner = "conda";
+    repo = "conda-libmamba-solver";
+    rev = version;
+    hash = "sha256-vsUYrDVNMKHd3mlaAFYCP4uPQ9HxeKsose5O8InaMcE=";
+  };
+
+  nativeBuildInputs = [ pythonRelaxDepsHook ];
+
+  build-system = [
+    hatchling
+    hatch-vcs
+  ];
+
+  dependencies = [
+    boltons
+    libmambapy
+  ];
+
+  # this package depends on conda for the import to run succesfully, but conda depends on this package to execute.
+  # pythonImportsCheck = [ "conda_libmamba_solver" ];
+
+  pythonRemoveDeps = [ "conda" ];
+
+  meta = {
+    description = "The libmamba based solver for conda.";
+    homepage = "https://github.com/conda/conda-libmamba-solver";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.ericthemagician ];
+  };
+}

pkgs/development/python-modules/conda-package-handling/default.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  setuptools,
+  conda-package-streaming,
+}:
+buildPythonPackage rec {
+  pname = "conda-package-handling";
+  version = "2.2.0";
+  src = fetchFromGitHub {
+    owner = "conda";
+    repo = "conda-package-handling";
+    rev = version;
+    hash = "sha256-WeGfmT6lLwcwhheLBPMFcVMudY+zPsvTuXuOsiEAorQ=";
+  };
+
+  pyproject = true;
+  build-system = [ setuptools ];
+  dependencies = [ conda-package-streaming ];
+
+  pythonImportsCheck = [ "conda_package_handling" ];
+
+  meta = {
+    description = "Create and extract conda packages of various formats";
+    homepage = "https://github.com/conda/conda-package-handling";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.ericthemagician ];
+  };
+}

pkgs/development/python-modules/conda-package-streaming/default.nix

@@ -0,0 +1,35 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  flit-core,
+  requests,
+  zstandard,
+}:
+buildPythonPackage rec {
+  pname = "conda-package-streaming";
+  version = "0.9.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "conda";
+    repo = "conda-package-streaming";
+    rev = "v${version}";
+    hash = "sha256-UTql2M+9eFDuHOwLYYKJ751wEcOfLJYzfU6+WF8Je2g=";
+  };
+
+  build-system = [ flit-core ];
+  dependencies = [
+    requests
+    zstandard
+  ];
+
+  pythonImportsCheck = [ "conda_package_streaming" ];
+
+  meta = {
+    description = "An efficient library to read from new and old format .conda and .tar.bz2 conda packages.";
+    homepage = "https://github.com/conda/conda-package-streaming";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.ericthemagician ];
+  };
+}

pkgs/development/python-modules/conda/0001-conda_exe.patch

@@ -0,0 +1,51 @@
+--- a/conda/base/context.py
++++ b/conda/base/context.py
+@@ -754,7 +754,7 @@
+
+     @property
+     def conda_prefix(self):
+-        return abspath(sys.prefix)
++        return expand("~/.conda")
+
+     @property
+     @deprecated(
+@@ -787,28 +787,17 @@
+         The vars can refer to each other if necessary since the dict is ordered.
+         None means unset it.
+         """
+-        if context.dev:
+-            return {
+-                "CONDA_EXE": sys.executable,
+-                # do not confuse with os.path.join, we are joining paths with ; or : delimiters
+-                "PYTHONPATH": os.pathsep.join(
+-                    (CONDA_SOURCE_ROOT, os.environ.get("PYTHONPATH", ""))
+-                ),
+-                "_CE_M": "-m",
+-                "_CE_CONDA": "conda",
+-                "CONDA_PYTHON_EXE": sys.executable,
+-            }
+-        else:
+-            bin_dir = "Scripts" if on_win else "bin"
+-            exe = "conda.exe" if on_win else "conda"
+-            # I was going to use None to indicate a variable to unset, but that gets tricky with
+-            # error-on-undefined.
+-            return {
+-                "CONDA_EXE": os.path.join(sys.prefix, bin_dir, exe),
+-                "_CE_M": "",
+-                "_CE_CONDA": "",
+-                "CONDA_PYTHON_EXE": sys.executable,
+-            }
++        import sys
++        return {
++            "CONDA_EXE": sys.executable,
++            # do not confuse with os.path.join, we are joining paths with ; or : delimiters
++            "PYTHONPATH": os.pathsep.join(
++                [CONDA_SOURCE_ROOT, os.environ.get("PYTHONPATH", "")] + [path for path in sys.path if "site-packages" in path]
++            ),
++            "_CE_M": "-m",
++            "_CE_CONDA": "conda",
++            "CONDA_PYTHON_EXE": sys.executable,
++        }
+
+     @memoizedproperty
+     def channel_alias(self):

pkgs/development/python-modules/conda/default.nix

@@ -1,38 +1,83 @@
-{ lib
-, buildPythonPackage
-, pythonAtLeast
-, fetchPypi
-, pycosat
-, requests
-, ruamel-yaml
-, isPy3k
-, enum34
+{
+  lib,
+  buildPythonPackage,
+  pythonRelaxDepsHook,
+  hostPlatform,
+  fetchFromGitHub,
+  # build dependencies
+  hatchling,
+  hatch-vcs,
+  # runtime dependencies
+  archspec,
+  conda-libmamba-solver,
+  conda-package-handling,
+  distro,
+  jsonpatch,
+  packaging,
+  platformdirs,
+  pluggy,
+  pycosat,
+  requests,
+  ruamel-yaml,
+  tqdm,
+  truststore,
+  # runtime options
+  defaultEnvPath ? "~/.conda/envs", # default path to store conda environments
+  defaultPkgPath ? "~/.conda/pkgs", # default path to store download conda packages
 }:
-
-# Note: this installs conda as a library. The application cannot be used.
-# This is likely therefore NOT what you're looking for.
-
 buildPythonPackage rec {
   pname = "conda";
-  version = "4.3.16";
-  format = "setuptools";
+  version = "24.1.2";
+  pyproject = true;
 
-  # this is a very outdated version of conda that isn't compatible with python 3.10+
-  disabled = pythonAtLeast "3.10";
-
-  src = fetchPypi {
+  src = fetchFromGitHub {
     inherit pname version;
-    sha256 = "a91ef821343dea3ba9670f3d10b36c1ace4f4c36d70c175d8fc8886e94285953";
+    owner = "conda";
+    repo = "conda";
+    rev = version;
+    hash = "sha256-L/Y7Bb3R5YqXbjTN4CRPFnkgymVLrxuFmjVzpvt28dE=";
   };
 
-  propagatedBuildInputs = [ pycosat requests ruamel-yaml ] ++ lib.optional (!isPy3k) enum34;
+  nativeBuildInputs = [ pythonRelaxDepsHook ];
+
+  build-system = [
+    hatchling
+    hatch-vcs
+  ];
+
+  dependencies = [
+    archspec
+    conda-libmamba-solver
+    conda-package-handling
+    distro
+    jsonpatch
+    packaging
+    platformdirs
+    pluggy
+    pycosat
+    requests
+    ruamel-yaml
+    tqdm
+    truststore
+  ];
+
+  patches = [ ./0001-conda_exe.patch ];
+
+  makeWrapperArgs = [
+    "--set CONDA_EXE ${placeholder "out"}/bin/conda"
+    ''--set-default CONDA_ENVS_PATH "${defaultEnvPath}"''
+    ''--set-default CONDA_PKGS_DIRS "${defaultPkgPath}"''
+  ];
+
+  pythonImportsCheck = [ "conda" ];
 
-  # No tests
-  doCheck = false;
+  # menuinst is currently not packaged
+  pythonRemoveDeps = lib.optionals (!hostPlatform.isWindows) [ "menuinst" ];
 
   meta = {
     description = "OS-agnostic, system-level binary package manager";
     homepage = "https://github.com/conda/conda";
     license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.ericthemagician ];
   };
 }