Add poetry support

example/README.md

@@ -44,17 +44,20 @@ This would be the same as running `unidep merge --name myenv --verbose`:
 🔍 Scanning in `.` at depth 0
 🔍 Scanning in `hatch_project` at depth 1
 🔍 Found `requirements.yaml` at `hatch_project/requirements.yaml`
+🔍 Scanning in `poetry_project` at depth 1
+🔍 Found `requirements.yaml` at `poetry_project/requirements.yaml`
 🔍 Scanning in `setuptools_project` at depth 1
 🔍 Found `requirements.yaml` at `setuptools_project/requirements.yaml`
 🔍 Scanning in `setup_py_project` at depth 1
 🔍 Found `requirements.yaml` at `setup_py_project/requirements.yaml`
 📄 Parsing `hatch_project/requirements.yaml`
+📄 Parsing `poetry_project/requirements.yaml`
 📄 Parsing `setup_py_project/requirements.yaml`
 📄 Parsing include `../setuptools_project`
 📄 Parsing `setuptools_project/requirements.yaml`
 📝 Generating environment file at `environment.yaml`
 📝 Environment file generated successfully.
-✅ Generated environment file at `environment.yaml` from `hatch_project/requirements.yaml`, `setup_py_project/requirements.yaml`, `setuptools_project/requirements.yaml`
+✅ Generated environment file at `environment.yaml` from `hatch_project/requirements.yaml`, `poetry_project/requirements.yaml`, `setup_py_project/requirements.yaml`, `setuptools_project/requirements.yaml`
 ```
 
 <!-- OUTPUT:END -->

example/poetry_project/poetry_project.py

@@ -0,0 +1 @@
+x = 1

example/poetry_project/pyproject.toml

@@ -0,0 +1,13 @@
+[build-system]
+requires = ["poetry-core>=1.0.0", "unidep @ file://localhost/Users/basnijholt/Code/unidep"]
+build-backend = "poetry.core.masonry.api"
+
+[tool.poetry]
+name = "poetry_project"
+version = "0.1.0"
+description = "Example poetry_project for `unidep`."
+authors = ["Bas Nijholt <[email protected]>"]
+
+# `dependencies` is not needed because it is automatically
+# populated by `unidep` with the dependencies from the `requirements.yaml`
+# [tool.poetry.dependencies]

example/poetry_project/requirements.yaml

@@ -0,0 +1,9 @@
+name: poetry_project
+channels:
+  - conda-forge
+dependencies:
+  - numpy
+  - pandas
+  - wexpect # [win]
+  - pexpect # [unix]
+  - pip: unidep

pyproject.toml

@@ -53,6 +53,9 @@ unidep = "unidep:_setuptools_integration._setuptools_finalizer"
 [project.entry-points.hatch]
 unidep = "unidep._hatch_integration"
 
+[tool.poetry.plugins."poetry.plugin"]
+poetry-dynamic-versioning = "unidep._poetry_integration:UniDepPlugin"
+
 [project.entry-points.pytest11]
 affected = "unidep._pytest_plugin"
 

unidep/_poetry_integration.py

@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from cleo.io.io import IO
+from poetry.plugins.plugin import Plugin
+from poetry.poetry import Poetry
+
+from unidep._setuptools_integration import get_python_dependencies
+from unidep.utils import identify_current_platform
+
+__all__ = ["UniDepPlugin"]
+
+# See example: https://github.com/mtkennerly/poetry-dynamic-versioning
+
+
+class UniDepPlugin(Plugin):
+    def activate(self, poetry: Poetry, io: IO):
+        io.write_line("Setting dependencies with UniDep")
+        project_root = Path().resolve()
+        requirements_file = project_root / "requirements.yaml"
+        if "dependencies" not in metadata.get("dynamic", []):
+            return
+        if not requirements_file.exists():
+            return
+        if "dependencies" in metadata:
+            error_msg = (
+                "You have a requirements.yaml file in your project root,"
+                " but you are also using [project.dependencies]."
+                " Please choose either requirements.yaml or"
+                " [project.dependencies], but not both."
+            )
+            raise RuntimeError(error_msg)
+
+        poetry.package.dependencies = get_python_dependencies(
+            requirements_file,
+            platforms=[identify_current_platform()],
+            raises_if_missing=False,
+        )