add circleci config

Author: nschloe

.circleci/config.yml

@@ -0,0 +1,66 @@
+version: 2
+
+jobs:
+
+  # # python2:
+  # build:
+  #   working_directory: ~/matplotlib2tikz
+  #   docker:
+  #     - image: ubuntu:17.10
+  #   steps:
+  #     - run: apt-get update
+  #     # don't install sympy with apt: it pulls in texlive which takes for ever
+  #     # to download and install
+  #     - run: apt-get install -y git python-pip pandoc
+  #     - run: pip2 install -U pytest pytest-cov pylint
+  #     - checkout
+  #     - run: pip2 install -r test_requirements.txt
+  #     - run: pip2 install .
+  #     # lint
+  #     - run: pylint matplotlib2tikz/
+  #     - run: pylint test/*.py
+  #     # make sure that rst converts correctly
+  #     - run: cat README.md | sed 's_<img src="\([^"]*\)" width="\([^"]*\)">_![](\1){width="\2"}_g' > /tmp/README.md
+  #     - run: pandoc /tmp/README.md -o README.rst
+  #     - run: pip2 install docutils pygments
+  #     - run: python setup.py check -r -s
+  #     # The tests
+  #     - run: cd test/ && MPLBACKEND=Agg pytest --cov matplotlib2tikz
+
+  # python3:
+  build:
+    working_directory: ~/matplotlib2tikz
+    docker:
+      - image: ubuntu:17.10
+    steps:
+      - run: apt-get update
+      - run: apt-get install -y pgf texlive-latex-base texlive-latex-extra
+      - run: pip3 install -U pytest pytest-cov code_extract pylint
+      - run: code_extract README.md test/zzz_readme_test.py --filter python,test
+      - checkout
+      # install latest pgfplots
+      - run: export TEXMFLOCAL=/tmp/texmf/ && mkdir -p $TEXMFLOCAL
+      - run: wget http://mirrors.ctan.org/install/graphics/pgf/contrib/pgfplots.tds.zip -O /tmp/pgfplots.zip
+      - run: unzip /tmp/pgfplots.zip -d $TEXMFLOCAL
+      - run: texhash
+      # install
+      - run: pip2 install -r test_requirements.txt
+      - run: pip3 install .
+      # lint
+      - run: pylint setup.py
+      - run: pylint matplotlib2tikz/
+      - run: pylint test/*.py
+      # The actual test
+      - run: cd test/ && pytest --cov matplotlib2tikz
+      # submit to codecov
+      - run: apt-get install -y curl
+      - run: bash <(curl -s https://codecov.io/bash)
+
+# workflow builds don't support forked PRs yet, cf.
+# <https://circleci.com/docs/2.0/faq/#can-i-build-fork-prs-using-workflows>.
+# workflows:
+#   version: 2
+#   build-and-test:
+#     jobs:
+#       - python2
+#       - python3