doc: update workflow to consider versioning

Signed-off-by: IonutMuthi <ionut.muthi@analog.com>

.github/workflows/generate_doc.yml

@@ -18,6 +18,13 @@ jobs:
       with:
         python-version: "3.x"
 
+
+    - name: Differentiate main from tag
+      run: |
+        if [ "${{ github.ref_name }}" != "main" ] ; then
+          echo "new_tag=1" >> "$GITHUB_ENV"
+        fi
+
     - name: Install pip packages
       working-directory: docs
       run: |
@@ -33,6 +40,7 @@ jobs:
       working-directory: docs
       run: |
         python3 extract_macros.py ../ user_guide/preferences_table.rst
+        ADOC_DOC_VERSION=${{ github.ref_name }}
         make html SPHINXOPTS='-W --keep-going'
 
     - name: Store the generated doc
@@ -44,7 +52,6 @@ jobs:
   deploy-doc:
     runs-on: ubuntu-latest
     needs: build-doc
-    if: startsWith(github.ref, 'refs/tags/')
 
     steps:
     - run: |
@@ -58,34 +65,45 @@ jobs:
         (
           git reset --hard ;
           git clean -fdx ;
+          git fetch origin gh-pages ;
+          git checkout -b gh-pages origin/gh-pages ;
+          DOC_BUILDS=$(find . -mindepth 2 -name objects.inv -exec sh -c 'dirname {}' ';') ;
+          git rm -r . --quiet || true ;
+          printf "Detected doc builds: $DOC_BUILDS" ;
+          if ! [ -z "$DOC_BUILDS" ]; then
+            git checkout @ -- $DOC_BUILDS ;
+          fi ;
+          if [[ "$new_tag" == "1" ]]; then
+            git rm -r ${{ github.ref_name }} --quiet || true ;
+          fi ;
+        ) || (
           git checkout --orphan gh-pages ;
-          git reset --hard;
-          git commit -m "empty" --allow-empty ;
-          git push origin gh-pages:gh-pages
+          git reset --hard ;
+          git commit -m "initial commit" --allow-empty
         )
 
-    - uses: actions/checkout@v4
+    - uses: actions/download-artifact@v4
       with:
-        ref: 'gh-pages'
-
-    - name: Empty gh-pages
-      run: |
-        git rm -r . --quiet || true
+        name: html
 
     - uses: actions/download-artifact@v4
+      if: ${{ env.new_tag == '1' }}
       with:
-        name: html
+        name: html-tagged
+        path: ${{ github.ref_name }}
 
-    - name: Patch doc build
+    - name: Generate aux files
       run: |
-        rm -r _sources
-        touch .nojekyll
+        touch .nojekyll ;
+        find . -name objects.inv -exec sh -c 'dirname {}' ';' |
+        cut -c 3- | sort -r |
+        jq --raw-input . |
+        jq --slurp . > tags.json
 
-    - name: Commit gh-pages
+    - name: Commit and push to gh-pages
       run: |
+        git config --global user.name "${{ github.event.head_commit.committer.name }}"
+        git config --global user.email "${{ github.event.head_commit.committer.email }}"
         git add . >> /dev/null
         git commit -m "deploy: ${GITHUB_SHA}" --allow-empty
-
-    - name: Push to gh-pages
-      run: |
-        git push origin gh-pages:gh-pages
+        git push origin gh-pages:gh-pages