fix document flow

Author: luk036

Diff for: .github/workflows/documentation.yaml

@@ -20,17 +20,18 @@ jobs:
           path: "**/cpm_modules"
           key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('**/CMakeLists.txt', '**/*.cmake') }}
 
-      - name: Before Install
+      - name: Add conda to system path
         run: |
-          sudo apt-get install g++-10
-          sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 90
+          # $CONDA is an environment variable pointing to the root of the miniconda directory
+          echo $CONDA/bin >> $GITHUB_PATH
 
-      - name: Install dependencies
-        run: sudo apt-get install libboost-dev
+      - name: Install dependent software
+        run: |
+          conda info
+          conda env update --file doc-dev.yml --name base
 
       - name: Install dependencies
         run: |
-          sudo apt-get install doxygen
           pip3 install jinja2 Pygments
 
       - name: Build

Diff for: doc-dev.yml

@@ -0,0 +1,5 @@
+name: projgeom-cpp
+channels:
+  - conda-forge
+dependencies:
+  - doxygen