Remove build-requirements.txt

.github/workflows/ccpp.yml

@@ -93,12 +93,14 @@ jobs:
           python-version: "3.12"
 
       - name: Install Python build dependencies
+        working-directory: python
         run: |
-          pip -v install --upgrade -r python/build-requirements.txt
+          pip install scikit-build-core setuptools
+          python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
 
       - name: Install FEniCS Python components
         run: |
-          pip install --no-build-isolation git+https://github.com/${{ env.ufl_repository }}.git@${{ env.ufl_ref }}
+          pip install git+https://github.com/${{ env.ufl_repository }}.git@${{ env.ufl_ref }}
           pip install --no-build-isolation git+https://github.com/${{ env.basix_repository }}.git@${{ env.basix_ref }}
           pip install --no-build-isolation git+https://github.com/${{ env.ffcx_repository }}.git@${{ env.ffcx_ref }}
 
@@ -187,11 +189,14 @@ jobs:
         run: cat .github/workflows/fenicsx-refs.env >> $GITHUB_ENV
 
       - name: Install Python build dependencies
-        run: pip install -r python/build-requirements.txt
+        working-directory: python
+        run: |
+          pip install scikit-build-core
+          python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
 
       - name: Install FEniCS Python components
         run: |
-          pip install --no-build-isolation git+https://github.com/${{ env.ufl_repository }}.git@${{ env.ufl_ref }}
+          pip install git+https://github.com/${{ env.ufl_repository }}.git@${{ env.ufl_ref }}
           pip install --no-build-isolation git+https://github.com/${{ env.basix_repository }}.git@${{ env.basix_ref }}
           pip install --no-build-isolation git+https://github.com/${{ env.ffcx_repository }}.git@${{ env.ffcx_ref }}
 
@@ -292,10 +297,15 @@ jobs:
       - name: Load environment variables
         run: cat .github/workflows/fenicsx-refs.env >> $GITHUB_ENV
 
+      - name: Install Python build dependencies
+        working-directory: python
+        run: |
+          pip install scikit-build-core setuptools
+          python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
+
       - name: Install FEniCS Python components
         run: |
-          pip install -r python/build-requirements.txt
-          pip install --no-build-isolation git+https://github.com/${{ env.ufl_repository }}.git@${{ env.ufl_ref }}
+          pip install git+https://github.com/${{ env.ufl_repository }}.git@${{ env.ufl_ref }}
           pip install --no-build-isolation git+https://github.com/${{ env.basix_repository }}.git@${{ env.basix_ref }}
           pip install --no-build-isolation git+https://github.com/${{ env.ffcx_repository }}.git@${{ env.ffcx_ref }}
 

.github/workflows/clang-tidy.yml

@@ -33,7 +33,12 @@ jobs:
         run: |
           apt-get update
           apt-get install -y clang-tidy catch2
-          pip install -r python/build-requirements.txt
+
+      - name: Install Python build dependencies
+        working-directory: python
+        run: |
+          pip install scikit-build-core
+          python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
 
       - name: Load environment variables
         run: cat .github/workflows/fenicsx-refs.env >> $GITHUB_ENV

.github/workflows/macos.yml

@@ -105,9 +105,11 @@ jobs:
           mpiexec -np 3 ctest -V --output-on-failure -R unittests
 
       - name: Build and install DOLFINx Python interface
+        working-directory: python
         run: |
-          pip install -r python/build-requirements.txt
-          pip install --check-build-dependencies --no-build-isolation 'python/[test]'
+          pip install scikit-build-core
+          python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
+          pip install --check-build-dependencies --no-build-isolation './[test]'
 
       - name: Basic test
         run: |

.github/workflows/windows.yml

@@ -142,7 +142,8 @@ jobs:
       - name: Install DOLFINx Python build dependencies
         working-directory: dolfinx-src/python
         run: |
-          pip -v install --no-binary mpi4py -r build-requirements.txt
+          pip install scikit-build-core
+          python -m pip install --no-binary mpi4py (python -m scikit_build_core.build requires | Out-String | ConvertFrom-Json)
 
       - name: Install DOLFINx (Python)
         working-directory: dolfinx-src/python

README.md

@@ -46,7 +46,8 @@ To install the Python interface, first install the C++ core, and then in
 the `python/` directory run:
 
 ```shell
-pip install -r build-requirements.txt
+pip install scikit-build-core
+python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
 pip install --check-build-dependencies --no-build-isolation .
 ```
 

docker/Dockerfile.end-user

@@ -71,7 +71,9 @@ ONBUILD ARG DOLFINX_CMAKE_BUILD_TYPE="Release"
 # Using pip install `.[test]` with --no-dependencies and --no-build-isolation
 # does not install necessary packages, hence install build and optional
 # dependencies manually here.
-ONBUILD RUN pip install --no-cache-dir -r dolfinx/python/build-requirements.txt && \
+ONBUILD RUN cd dolfinx/python &&
+            pip install --no-cache-dir scikit-build-core && 
+            python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install --no-cache-dir && \
             pip install --no-cache-dir pyamg pytest scipy matplotlib numba # test + optional set
 
 # The dolfinx-onbuild container expects to have folders basix/ ufl/

python/README.md

@@ -6,7 +6,8 @@ Below is guidance for building the DOLFINx Python interface.
 
 2. Ensure the Python interface build requirements are installed:
 
-          pip install -r build-requirements.txt
+          pip install scikit-build-core
+          python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
 
 3. Build DOLFINx Python interface:
 

python/doc/source/installation.rst

@@ -105,7 +105,7 @@ Python
 After installation of the C++ interface, from the ``python/`` directory
 the Python interface can be installed using::
 
-    pip install -r build-requirements.txt
+    python -m scikit_build_core.build requires | python -c "import sys, json; print(' '.join(json.load(sys.stdin)))" | xargs pip install
     pip install --check-build-dependencies --no-build-isolation .
 
 

python/pyproject.toml

@@ -3,7 +3,6 @@
 # system built petsc4py and mpi4py.
 # NOTE: petsc4py is an optional build dependency, therefore we don't
 # list it here.
-# pip install -r build-requirements.txt
 [build-system]
 requires = ["scikit-build-core[pyproject]>=0.10", "nanobind>=2.5.0", "mpi4py"]
 build-backend = "scikit_build_core.build"