Use geoana 0.2.1 for building the website (#579)

Use an older version of geoana to build the website to avoid errors
coming from incompatibilities with the latest version. Install
`geoana==0.2.1` in GitHub Actions to run tests and to build the website.
Just pinning it in the `requirements.txt` file doesn't work because of
missing build dependencies for that old version. So the build
requirements (listed in a new `requirements-build-geoana.txt` file) are
installed along with other needed packages (e.g. Sphinx), and
`geoana=0.2.1` gets installed with `pip` but disabling the build
isolation (passing `--no-build-isolation`).

This fix is just a patch, we should make the repo compatible with latest
geoana at some point. By then, we should revert these changes.

.github/workflows/python-app.yml

@@ -23,8 +23,16 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+
+        # Gather requirements and install older version of geoana
+        cat requirements.txt | grep -v "^geoana" > requirements-ci.txt
+        cat requirements-build-geoana.txt | grep -v "^#" >> requirements-ci.txt
+        pip install -r requirements-ci.txt
+        rm requirements-ci.txt
+        pip install --no-build-isolation geoana==0.2.1
+
+        # Install extra packages
         pip install flake8 pytest
-        pip install -r requirements.txt
     - name: Test with pytest
       run: |
         pytest -s -v tests
@@ -43,7 +51,13 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+
+        # Gather requirements and install older version of geoana
+        cat requirements.txt | grep -v "^geoana" > requirements-ci.txt
+        cat requirements-build-geoana.txt | grep -v "^#" >> requirements-ci.txt
+        pip install -r requirements-ci.txt
+        rm requirements-ci.txt
+        pip install --no-build-isolation geoana==0.2.1
 
     - name: Build pages
       run: |

requirements-build-geoana.txt

@@ -0,0 +1,13 @@
+# Requirements to build geoana 0.2.1 without isolation
+#
+# This file was added as a way to install geoana 0.2.1 (old version) in GitHub
+# Actions and build the website using an this old version of geoana.
+#
+# We should remove this file after updating the repo to work with the latest
+# version of geoana. The easiest way to do so would be to revert the commit
+# that added this file.
+#
+numpy<1.23
+cython
+setuptools<60
+wheel

requirements.txt

@@ -3,4 +3,4 @@ sphinxcontrib-bibtex
 sphinx_rtd_theme
 pytest
 matplotlib
-geoana
+geoana==0.2.1