Switch from Travis to GitHub Actions

.github/workflows/main.yml

@@ -0,0 +1,34 @@
+name: GitHub Actions
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    name: build and test
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [gcc, clang]
+    env:
+      CC: ${{ matrix.compiler }}
+
+    steps:
+    - uses: actions/checkout@v2
+    - run: git fetch --prune --unshallow
+    - name: fetch or build Docker container
+      run: |
+        docker build --pull --no-cache --rm -t=i3lock -f travis/Dockerfile .
+        docker run -e CC -v $PWD:/usr/src:rw i3lock /bin/sh -c 'git config --global --add safe.directory /usr/src && mkdir build && cd build && CFLAGS="-Wformat -Wformat-security -Wextra -Wno-unused-parameter -Werror" meson .. && ninja'
+  formatting:
+    name: Check formatting
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install dependencies
+      run: |
+        sudo apt-get install -y clang-format-11
+    - name: Check formatting
+      run: clang-format-11 --dry-run --Werror $(git ls-files '*.c' 'include/*.h')

.travis.yml

@@ -1,13 +0,0 @@
-# Use Ubuntu 14.04 (trusty), as per http://blog.travis-ci.com/2015-10-14-opening-up-ubuntu-trusty-beta/
-sudo: false
-dist: trusty
-services:
-  - docker
-language: c
-compiler:
-  - gcc
-  - clang
-script:
-  - docker build --pull --no-cache --rm -t=i3lock -f travis/Dockerfile .
-  - docker run -e CC=$CC -v $PWD:/usr/src:rw i3lock /bin/sh -c 'clang-format-9 -i *.[ch] && git diff --exit-code || (echo "Code was not formatted using clang-format!"; false)'
-  - docker run -e CC=$CC -v $PWD:/usr/src:rw i3lock /bin/sh -c 'autoreconf -fi && mkdir -p build && cd build && (../configure || (cat config.log; false)) && make -j V=1 CFLAGS="-Wformat -Wformat-security -Wextra -Wno-unused-parameter -Werror"'

travis/Dockerfile

@@ -16,10 +16,10 @@ RUN echo 'APT::Acquire::Retries "5";' > /etc/apt/apt.conf.d/80retry
 # test suite dependencies (for running tests)
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    build-essential clang git autoconf automake libxcb-randr0-dev pkg-config libpam0g-dev \
+    build-essential clang git meson libxcb-randr0-dev pkg-config libpam0g-dev \
     libcairo2-dev libxcb1-dev libxcb-dpms0-dev libxcb-image0-dev libxcb-util0-dev \
     libxcb-xrm-dev libev-dev libxcb-xinerama0-dev libxcb-xkb-dev libxkbcommon-dev \
-    libxkbcommon-x11-dev clang-format-9 && \
+    libxkbcommon-x11-dev  && \
     rm -rf /var/lib/apt/lists/*
 
 WORKDIR /usr/src