Make dev dependencies optional (#65)

See mesh-adaptation/animate#167.

Makefile

@@ -6,6 +6,11 @@ install:
 	@echo "Installing UM2N..."
 	@python3 -m pip install -e .
 	@echo "Done."
+
+install_dev:
+	@echo "Installing UM2N for development..."
+	@python3 -m pip install -e .[dev]
+	@echo "Done."
 	@echo "Setting up pre-commit..."
 	@pre-commit install
 	@echo "Done."

pyproject.toml

@@ -4,22 +4,6 @@ requires = ["setuptools"]
 [project]
 name = "UM2N"
 version = "1.0"
-dependencies = [
-  "einops",
-  "gmsh",
-  "jupyter",
-  "ipython",
-  "matplotlib",
-  "numpy",
-  "pandas",
-  "pytest",
-  "rich",
-  "ruff",
-  "seaborn",
-  # "torch", # NOTE: Should be installed beforehand
-  "torch_geometric",
-  "wandb",
-]
 authors = [
   {name = "Chunyang Wang"},
   {name = "Mingrui Zhang"},
@@ -35,6 +19,26 @@ classifiers = [
   "Development Status :: 4 - Beta",
   "Programming Language :: Python",
 ]
+dependencies = [
+  "einops",
+  "gmsh",
+  "jupyter",
+  "ipython",
+  "matplotlib",
+  "numpy",
+  "pandas",
+  "rich",
+  "seaborn",
+  # "torch", # NOTE: Should be installed beforehand
+  "torch_geometric",
+  "wandb",
+]
+
+[project.optional-dependencies]
+dev = [
+  "pytest",
+  "ruff",
+]
 
 [project.urls]
 Homepage = "https://erizmr.github.io/UM2N"