fix: configuration of the sphinx-action

Author: oesteban

.github/workflows/builddocs.yml

@@ -24,20 +24,19 @@ jobs:
       run: |
         if [[ "$GITHUB_REF" == refs/tags/* ]]; then
           CURBRANCH=${GITHUB_REF##*/}
+        elif [[ "$GITHUB_REF" == refs/pull/* ]]; then
+          CURBRANCH=${GITHUB_REF%/*}
+          CURBRANCH=${CURBRANCH##*/}
         elif [[ "$GITHUB_REF" == refs/heads/* ]]; then
           CURBRANCH=${GITHUB_REF##*/}
         fi
 
-        if [ "$CURBRANCH" == "" ] && [[ "$GITHUB_BASE_REF" == refs/heads/* ]]; then
-          CURBRANCH=${GITHUB_BASE_REF##*/}
-        fi
-
         # Remove forward slashes
         CURBRANCH=$( echo $CURBRANCH | sed 's+/+_+g' )
         echo "Building branch/tag ${CURBRANCH:-<unkwown>}, from git ref <$GITHUB_REF>"
         echo "CURBRANCH=${CURBRANCH}" >> ${GITHUB_ENV}
 
     - uses: ammaraskar/sphinx-action@master
       with:
-        docs-folder: "docs/"
-        build-command: make -C docs/ SPHINXOPTS="-W" BUILDDIR="$HOME/docs" CURBRANCH="${CURBRANCH:-html}" html
+        docs-folder: "."
+        build-command: make -C docs/ PYTHONPATH="${GITHUB_WORKSPACE}" SPHINXOPTS="-W" BUILDDIR="$HOME/docs" CURBRANCH="${CURBRANCH:-html}" html