faster circleci tests

Author: nschloe

.circleci/config.yml

@@ -3,34 +3,36 @@ version: 2
 jobs:
   lint:
     docker:
-      - image: ubuntu:18.04
+      - image: circleci/python:3.7
     steps:
       - checkout
-      - run: apt update
-      - run: apt install -y python3-pip
-      - run: pip3 install -U black flake8
-      - run: LC_ALL=C.UTF-8 black --check .
+      - run: pip3 install -U black flake8 --user
+      - run: black --check .
       - run: flake8 .
   build:
     working_directory: ~/work
     docker:
-      - image: ubuntu:18.04
+      - image: circleci/python:3.7
     steps:
-      - run: apt update
+      - run: sudo apt update
       # <https://stackoverflow.com/a/44333806/353337>
-      - run: DEBIAN_FRONTEND=noninteractive apt install tzdata
-      - run: apt install -y texlive-latex-base texlive-latex-extra python3-pip python3-tk python3-scipy
-      - run: pip3 install -U pytest pytest-cov excode
+      - run: DEBIAN_FRONTEND=noninteractive sudo apt install tzdata
+      - run: sudo apt install -y texlive-latex-base texlive-latex-extra
+      - run: pip3 install -U pytest pytest-cov excode --user
       - checkout
-      - run: cd ~/work
-      - run: excode README.md test/zzz_readme_test.py --filter python,test
-      - run: pip3 install -r test_requirements.txt
-      - run: pip3 install .[all]
+      - run:
+          command: excode README.md test/zzz_readme_test.py --filter python,test
+          working_directory: work/
+      - run: pip3 install -r test_requirements.txt --user
+      - run: pip3 install .[all] --user
       - run: pip3 check
       # The actual test
-      - run: cd test/ && MPLBACKEND=Agg pytest --cov tikzplotlib
+      - run:
+          command: pytest --cov tikzplotlib
+          working_directory: test/
+          environment:
+            MPLBACKEND: Agg
       # submit to codecov
-      - run: apt install -y curl
       - run: bash <(curl -s https://codecov.io/bash)
 
 workflows:

.github/workflows/test.yml

@@ -42,5 +42,5 @@ jobs:
         pip install pytest pytest-cov
         pip install -r test_requirements.txt
         cd test/ && MPLBACKEND=Agg pytest --cov tikzplotlib
-    - name: Submit to codecov
-      run: bash <(curl -s https://codecov.io/bash) -R ~/work/tikzplotlib
+    # - name: Submit to codecov
+    #   run: bash <(curl -s https://codecov.io/bash)