Add CircleCI preview CI (#108)

Author: stefanv

.circleci/config.yml

@@ -0,0 +1,38 @@
+version: 2.1
+
+jobs:
+  build-docs:
+    docker:
+      - image: cimg/python:3.12
+
+    steps:
+      - checkout
+
+      - restore_cache:
+          keys:
+            - pip-cache-v1-{{ checksum "conf.py" }}
+            - pip-cache-v1-
+
+      - run:
+          name: Install dependencies
+          command: |
+            python -m pip install --upgrade pip
+            pip install sphinx
+
+      - save_cache:
+          key: pip-cache-v1-{{ checksum "conf.py" }}
+          paths:
+            - ~/.cache/pip
+
+      - run:
+          name: Build docs
+          command: |
+            make html
+
+      - store_artifacts:
+          path: _build/html
+
+workflows:
+  build-preview:
+    jobs:
+      - build-docs

.github/workflows/circleci-artifact-redirector.yaml

@@ -0,0 +1,16 @@
+name: CircleCI artifact redirector
+
+on:
+  status: {}
+
+jobs:
+  circleci_artifact_redirector:
+    runs-on: ubuntu-latest
+    if: github.event.context == 'ci/circleci: build-docs'
+
+    steps:
+      - uses: scientific-python/circleci-artifacts-redirector-action@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          artifact-path: 0/_build/html/index.html
+          circleci-jobs: build-docs