Switch CI to the fedora-python Tox GitHub action

https://github.com/fedora-python/tox-current-env/pull/28

.github/workflows/main.yaml

@@ -0,0 +1,35 @@
+on:
+  push:
+  pull_request:
+
+name: Run Tox tests
+
+jobs:
+  tox_test:
+    name: Tox test
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run Tox tests
+      id: test
+      uses: fedora-python/tox-github-action@master
+      with:
+        tox_env: ${{ matrix.tox_env }}
+    strategy:
+      matrix:
+        tox_env:
+        # This information is repeated in tox.ini
+        # (see https://github.com/fedora-python/tox-github-action/issues/8)
+        - py36-tox35
+        - py37-tox35
+        - py38-tox35
+
+        - py36-toxrelease
+        - py37-toxrelease
+        - py38-toxrelease
+
+        - py36-toxmaster
+        - py37-toxmaster
+        - py38-toxmaster
+
+    # Use GitHub's Linux Docker host
+    runs-on: ubuntu-latest

.travis.yml

@@ -1,17 +0,0 @@
-language: generic
-
-services:
-  - docker
-
-env:
-  - FEDORA=29
-  - FEDORA=30
-  - FEDORA=31
-  - FEDORA=rawhide
-
-install:
-  - sed -i "s|FROM fedora|FROM registry.fedoraproject.org/fedora:${FEDORA}|" Dockerfile
-  - docker build -t tox-current-env .
-
-script:
-  - docker run -v $(pwd):$(pwd) -w $(pwd) -i -t tox-current-env

Dockerfile

@@ -1,12 +0,0 @@
-FROM fedora
-
-RUN dnf -y install --setopt=install_weak_deps=false --setopt=tsflags=nodocs \
-    --setopt=deltarpm=false --allowerasing --best --disablerepo=\*modular \
-    tox python36 python37 python38 git-core && \
-    dnf -y --setopt=install_weak_deps=false --setopt=tsflags=nodocs --best\
-    --setopt=deltarpm=false --allowerasing --disablerepo=\*modular update && \
-    dnf clean all
-
-ENV LANG=C.UTF-8 LC_ALL=C.UTF-8
-
-CMD ["/usr/bin/tox"]

tox.ini

@@ -1,4 +1,7 @@
 [tox]
+
+# This information is repeated in .github/workflows/main.yaml
+# (see https://github.com/fedora-python/tox-github-action/issues/8)
 envlist = {py36,py37,py38}-tox{35,release,master}
 
 [testenv]