Add circleci build

.circleci/config.yml

@@ -0,0 +1,63 @@
+version: 2
+
+jobs:
+  docs-build:
+    docker:
+      - image: python:3.7
+    steps:
+      - checkout
+      - run:
+          name: Install dependencies
+          command: |
+            apt-get update
+            apt-get install --no-install-recommends -y texlive-base texlive-latex-base texlive-latex-recommended texlive-fonts-recommended texlive-fonts-extra texlive-latex-extra texlive-formats-extra texlive-bibtex-extra texlive-humanities texlive-lang-italian texinfo texlive-science latexmk
+            apt-get autoremove
+            apt-get clean
+            rm -rf /var/lib/apt/lists/*
+      - run:
+          name: Compile SPHINX
+          command: |
+            pip install -r requirements.txt
+            make html
+            make latexpdf
+            cp _build/latex/*.pdf _build/html/
+            make epub
+            cp _build/epub/*.epub _build/html/
+            touch _build/html/.nojekyll
+      - persist_to_workspace:
+          root: _build
+          paths:
+            - html
+  docs-deploy:
+    docker:
+      - image: node:8.10.0
+    steps:
+      - add_ssh_keys:
+          fingerprints:
+            - "50:c0:de:85:b0:a3:35:40:b1:29:2e:a7:c1:04:bf:09"
+      - checkout
+      - attach_workspace:
+          at: _build
+      - run:
+          name: Install and configure dependencies
+          command: |
+            npm install -g --silent gh-pages@2.0.1
+            git config user.email "marco.spasiano@gmail.com"
+            git config user.name "marco.spasiano"
+      - run:
+          name: Deploy docs to gh-pages branch
+          command: gh-pages --dist _build/html
+workflows:
+  version: 2
+  build-and-deploy:
+    jobs:
+      - docs-build:
+          filters:
+            branches:
+              only: master
+      - docs-deploy:
+          requires:
+            - docs-build
+          filters:
+            branches:
+              only: master