Replace poetry with pdm

In addition we stop using Nix managing the Python dependencies. It just takes
too much time to again and again fix the various problems.

.envrc

@@ -9,7 +9,30 @@ layout_postgres() {
         echo "CREATE DATABASE django;" | postgres --single -E postgres
     fi
 }
+
+layout_pdm() {
+    PYPROJECT_TOML="${PYPROJECT_TOML:-pyproject.toml}"
+    if [ ! -f "$PYPROJECT_TOML" ]; then
+        log_status "No pyproject.toml found. Executing \`pmd init\` to create a \`$PYPROJECT_TOML\` first."
+        pdm init --non-interactive --python "$(python3 --version 2>/dev/null | cut -d' ' -f2 | cut -d. -f1-2)"
+    fi
+
+    VIRTUAL_ENV=$(pdm venv list | grep "^\*"  | awk -F" " '{print $3}')
+
+
+    if [ -z "$VIRTUAL_ENV" ] || [ ! -d "$VIRTUAL_ENV" ]; then
+        log_status "No virtual environment exists. Executing \`pdm info\` to create one."
+        pdm info
+        VIRTUAL_ENV=$(pdm venv list | grep "^\*"  | awk -F" " '{print $3}')
+    fi
+
+    PATH_add "$VIRTUAL_ENV/bin"
+    export PDM_ACTIVE=1
+    export VIRTUAL_ENV
+}
+
 layout postgres
+layout pdm
 export PROJECT_DIR=$(pwd)
 export WEBPORT=$(($RANDOM + 1100))
 export PGPORT=$(($WEBPORT + 100))

.github/workflows/publish.yml

@@ -32,7 +32,7 @@ jobs:
       - uses: DeterminateSystems/magic-nix-cache-action@main
       - name: Buid container
         run: |
-          nix build .#container
+          nix build --no-sandbox .#container
           docker load < result
 
       - name: Log into registry

.gitignore

@@ -181,3 +181,4 @@ db_data
 .direnv
 /result
 /static/
+.pdm-python

dev.sh

@@ -132,7 +132,7 @@ descriptions["test"]="Run the tests in the RAM DB and write a coverage report."
 tasks["test"]=test
 
 update (){
-    poetry update --lock
+    pdm update
 }
 descriptions["update"]="Update the dependencies."
 tasks["update"]=update

flake.lock

@@ -73,13 +73,27 @@
         "type": "github"
       }
     },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1693003285,
+        "narHash": "sha256-5nm4yrEHKupjn62MibENtfqlP6pWcRTuSKrMiH9bLkc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5690c4271f2998c304a45c91a0aeb8fb69feaea7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "poetry2nix": {
       "inputs": {
         "flake-utils": "flake-utils_2",
         "nix-github-actions": "nix-github-actions",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
+        "nixpkgs": "nixpkgs_2"
       },
       "locked": {
         "lastModified": 1693051011,
@@ -90,9 +104,8 @@
         "type": "github"
       },
       "original": {
-        "owner": "nix-community",
-        "repo": "poetry2nix",
-        "type": "github"
+        "id": "poetry2nix",
+        "type": "indirect"
       }
     },
     "root": {

flake.nix

@@ -3,53 +3,40 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
-    poetry2nix = {
-      url = "github:nix-community/poetry2nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
   };
   outputs = { self, nixpkgs, flake-utils, poetry2nix }:
-    {
-      overlays.default = nixpkgs.lib.composeManyExtensions [
-        poetry2nix.overlay
-        (final: prev: rec {
-          inventoryDevEnv = prev.poetry2nix.mkPoetryEnv
-            {
-              projectDir = ./.;
-              groups = [ "main" "dev" ];
-            };
-          inventoryPackage = prev.poetry2nix.mkPoetryApplication {
-            projectDir = ./.;
-            groups = [ "main" ];
-          };
-          inventoryEnv = inventoryPackage.dependencyEnv;
-        })
-      ];
-    } // (flake-utils.lib.eachDefaultSystem (system:
+    (flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {
           inherit system;
-          overlays = [ self.overlays.default ];
         };
+        ld_path = pkgs.lib.makeLibraryPath [ pkgs.openssl ];
         inventory = pkgs.stdenv.mkDerivation {
           src = ./.;
           version = "latest";
           pname = "network-inventory";
+          buildInputs = [
+            pkgs.pdm
+            pkgs.python310
+          ];
           installPhase = ''
-            mkdir -p $out
-            cp -r ./src $out/code
+            runHook preInstall
+            mkdir -p $out/code
+            pdm sync --production --no-editable --fail-fast
+            cp pdm.toml pdm.lock pyproject.toml $out/code/
+            cp -r .venv $out/code/.venv
+            cp -r ./src $out/code/src
+            runHook postInstall
           '';
         };
       in
       rec {
         devShells.default = pkgs.mkShell {
           buildInputs = [
-            pkgs.inventoryDevEnv
-            pkgs.poetry
-            pkgs.python310Packages.pip
+            pkgs.pdm
             pkgs.overmind
             pkgs.postgresql_15
+            pkgs.python310
             (pkgs.writeScriptBin "dev" "${builtins.readFile ./dev.sh}")
           ];
           PYTHON_KEYRING_BACKEND = "keyring.backends.fail.Keyring";
@@ -66,7 +53,7 @@
             doCheck = true;
             name = "lint";
             src = ./.;
-            checkInputs = [ pkgs.inventoryDevEnv ];
+            checkInputs = [ pkgs.pdm ];
             checkPhase = ''
               mkdir -p $out
               pylint --rc-file pyproject.toml -j 0 -E src/
@@ -82,7 +69,7 @@
             doCheck = true;
             name = "test";
             src = ./.;
-            checkInputs = [ pkgs.inventoryDevEnv pkgs.postgresql_15 pkgs.overmind ];
+            checkInputs = [ pkgs.pdm pkgs.postgresql_15 pkgs.overmind ];
             checkPhase = ''
               mkdir -p $out
               pytest --ds=network_inventory.settings.ram_test \
@@ -94,7 +81,6 @@
           };
         };
         packages = {
-          venv = pkgs.inventoryEnv;
           container = pkgs.dockerTools.buildImage {
             name = "network-inventory";
             tag = "latest";
@@ -102,9 +88,11 @@
             copyToRoot = pkgs.buildEnv {
               name = "image-root";
               paths = [
+                inventory
                 pkgs.bashInteractive
                 pkgs.coreutils
-                inventory
+                pkgs.pdm
+                pkgs.python310
                 (pkgs.writeShellScriptBin "start-inventory" ''
                   if [ -f .first_run ]; then
                       sleep 2
@@ -138,12 +126,14 @@
               ];
             };
             config = {
-              Cmd = [ "start-inventory" ];
+              Cmd = [ "pdm run start-inventory" ];
               WorkingDir = "/code";
               Env = [
                 "POSTGRES_DB=network_inventory"
                 "DJANGO_SETTINGS_MODULE=network_inventory.settings.production"
-                "PYTHONPATH=/lib/python3.10:/lib/python3.10/site-packages:/code"
+                "PYTHONPATH=$PYTHONPATH:/lib/python3.10:/lib/python3.10/site-packages:/code/src:/code/.venv/lib/python3.10/site-packages"
+                "PATH=$PATH:/bin:/code/.venv/bin"
+                "LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${ld_path}"
               ];
             };
           };

pdm.toml

@@ -0,0 +1,2 @@
+[venv]
+backend = "venv"

poetry.toml

@@ -1,2 +0,0 @@
-[virtualenvs]
-in-project = true

pyproject.toml

@@ -1,20 +1,35 @@
+[project]
+description = "A Django application designed to track IT inventory of multiple customers."
+authors = [
+    {name = "Andreas Zweili", email = "andreas@zweili.ch"},
+]
+dependencies = [
+    "Django>=4.1.3",
+    "django-crispy-forms>=1.14,<2.0.0", # version 2 breaks tests
+    "django-filter>=23.2",
+    "django-floppyforms>=1.9.0",
+    "django-guardian>=2.4.0",
+    "django-htmx>=1.16.0",
+    "django-model-utils>=4.3.1",
+    "django-nested-admin>=4.0.2",
+    "django-tables2>=2.4.1,<2.6.0", # version 2.6 breaks tests
+    "gunicorn>=21.2.0",
+    "psycopg2-binary>=2.9.7",
+    "PyYAML>=6.0.1",
+    "setuptools>=68.1.2",
+]
+requires-python = ">=3.10"
+license = {text = "GPLv3+"}
+classifiers = [
+    "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
+]
+
 [tool.pylint]
 max-line-length = 88
 load-plugins = [
     "pylint_django",
 ]
 
-[tool.poetry]
-name = "network_inventory"
-version = "0.1.0"
-description = ""
-authors = ["Andreas Zweili <andreas@zweili.ch>"]
-license = "GPLv3"
-packages = [
-  { include = "src" },
-]
-virtualenvs.in-project = true
-
 [tool.mypy]
 exclude = [
     "tests/",
@@ -54,35 +69,20 @@ module = [
 ]
 ignore_missing_imports = true
 
-[tool.poetry.group.main.dependencies]
-python = "^3.9"
-Django = "^4.1.3"
-django-crispy-forms = "^1.14.0"
-django-filter = "^23.2"
-django-floppyforms = "^1.9.0"
-django-guardian = "^2.4.0"
-django-htmx = "^1.13.0"
-django-model-utils = "^4.2.0"
-django-nested-admin = "^4.0.2"
-django-tables2 = "^2.4.1"
-gunicorn = "^20.1.0"
-psycopg2-binary = "^2.9.5"
-PyYAML = "^6.0"
-
-[tool.poetry.group.dev.dependencies]
-black = "^22.10.0"
-coverage = "^6.5.0"
-mixer = "^7.2.2"
-pylint = "^2.15.8"
-pytest = "^7.2.0"
-pytest-cov = "^4.0.0"
-pytest-django = "^4.5.2"
-pytest-xdist = "^3.1.0"
-python-lsp-server = "^1.7.3"
-mypy = "^1.4.1"
-django-stubs = "^4.2.3"
-pylint-django = "^2.5.3"
-
-[build-system]
-requires = ["poetry-core>=1.0.0"]
-build-backend = "poetry.core.masonry.api"
+[tool.pdm.dev-dependencies]
+linting = [
+    "black>=23.7.0",
+    "django-stubs>=4.2.3",
+    "mypy>=1.5.1",
+    "pylint>=2.17.5",
+    "pylint-django>=2.5.3",
+]
+test = [
+    "coverage>=7.3.0",
+    "mixer>=7.2.2",
+    "pytest>=7.4.0",
+    "pytest-cov>=4.1.0",
+    "pytest-django>=4.5.2",
+    "pytest-xdist>=3.3.1",
+    "python-lsp-server>=1.7.4",
+]