Add a separate action to set the NEOPDF_DATA_PATH

Author: Radonirinaunimi

.github/actions/install_conda_pip/action.yml

@@ -44,7 +44,4 @@ runs:
       shell: bash -l {0}
       run: |
         pip install -e .${{ inputs.nnpdf-extras }}
-    - name: Point NeoPDF at the LHAPDF data directory
-      shell: bash -l {0}
-      run: |
-        echo "NEOPDF_DATA_PATH=$(python -c 'import lhapdf; print(lhapdf.paths()[0])')" >> $GITHUB_ENV
+    - uses: ./.github/actions/set_neopdf_datapath

.github/actions/set_neopdf_datapath/action.yml

@@ -0,0 +1,12 @@
+name: Set NEOPDF_DATA_PATH
+
+# Point NeoPDF at the directory where lhapdf-management stores PDF sets,
+# so it reads local files instead of downloading from the LHAPDF servers.
+
+runs:
+  using: "composite"
+  steps:
+    - name: Point NeoPDF at the LHAPDF data directory
+      shell: bash -l {0}
+      run: |
+        echo "NEOPDF_DATA_PATH=$(python -c 'from lhapdf_management.configuration import environment; print(environment.datapath)')" >> $GITHUB_ENV

.github/workflows/all_tests_nnpdf.yml

@@ -133,6 +133,7 @@ jobs:
         pip install ".[neopdf,torch]" "torch<2.12"
         # Since there is no LHAPDF in the system, initialize the folder and download pdfsets.index
         lhapdf-management update --init
+    - uses: ./.github/actions/set_neopdf_datapath
     - name: Test we can run one runcard
       shell: bash -l {0}
       run: |
@@ -164,6 +165,7 @@ jobs:
         pip install .[neopdf,jax]
         # Since there is no LHAPDF in the system, initialize the folder and download pdfsets.index
         lhapdf-management update --init
+    - uses: ./.github/actions/set_neopdf_datapath
     - name: Test we can run one runcard
       shell: bash -l {0}
       run: |