Convert CI to GitHub Actions

Travis has unfortunately been severely rate limited by Docker Hub so we
have to switch to GitHub, which has an agreement with Docker to avoid
the rate limiting.

.github/workflows/build.yml

@@ -3,7 +3,79 @@ name: Build
 on: [push, pull_request]
 
 jobs:
-  build:
+  build-linux:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libgnutls28-dev libfltk1.3-dev fluid gettext
+          sudo apt-get install -y libxtst-dev libxdamage-dev libxfixes-dev libxrandr-dev libpam-dev
+      - name: Configure
+        run: cmake -DCMAKE_BUILD_TYPE=Debug -S . -B build
+      - name: Build
+        working-directory: build
+        run: make
+      - name: Install
+        working-directory: build
+        run: make tarball
+
+  build-windows:
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: msys2/setup-msys2@v2
+      - name: Install dependencies
+        run: |
+          pacman --sync --noconfirm --needed make mingw-w64-x86_64-toolchain mingw-w64-x86_64-cmake
+          pacman --sync --noconfirm --needed mingw-w64-x86_64-fltk mingw-w64-x86_64-libjpeg-turbo mingw-w64-x86_64-gnutls mingw-w64-x86_64-pixman
+      - name: Configure
+        run: cmake -G "MSYS Makefiles" -DCMAKE_BUILD_TYPE=Debug -S . -B build
+      - name: Build
+        working-directory: build
+        run: make
+      - name: Install
+        working-directory: build
+        env:
+          MSYS2_PATH_TYPE: inherit
+        run: make installer winvnc_installer
+
+  build-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install dependencies
+        run: |
+          brew install fltk pixman
+      - name: Configure
+        run: cmake -DCMAKE_BUILD_TYPE=Debug -S . -B build
+      - name: Build
+        working-directory: build
+        run: make
+      - name: Install
+        working-directory: build
+        run: make dmg
+
+  build-packages:
+    strategy:
+      matrix:
+        target:
+          - centos8
+          - centos7
+          - xenial
+          - bionic
+          - focal
+      fail-fast: false
+    runs-on: ubuntu-latest
+    env:
+      DOCKER: ${{ matrix.target }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build image
+        run: docker build -t tigervnc/$DOCKER .github/containers/$DOCKER
+      - name: Build packages
+        run: .github/containers/$DOCKER/build.sh

.travis.yml

@@ -1,82 +0,0 @@
-dist: xenial
-language: minimal
-
-env:
-  - DOCKER=centos8
-  - DOCKER=centos7
-  - DOCKER=xenial
-  - DOCKER=bionic
-  - DOCKER=focal
-
-matrix:
-  include:
-  - language: cpp
-    env:
-    before_install:
-    - sudo apt-get install -y libgnutls-dev libfltk1.3-dev fluid
-    - sudo apt-get install -y libxtst-dev libxdamage-dev libxfixes-dev libxrandr-dev
-    script:
-    - cmake -DCMAKE_BUILD_TYPE=Debug . && make && make tarball
-
-  - language: cpp
-    os: windows
-    env:
-    # From https://docs.travis-ci.com/user/reference/windows/
-    before_install:
-    - |-
-      choco install --no-progress -y innosetup
-      [[ ! -f C:/tools/msys64/msys2_shell.cmd ]] && rm -rf C:/tools/msys64
-      choco uninstall -y mingw
-      choco upgrade --no-progress -y msys2
-      export msys2='cmd //C RefreshEnv.cmd '
-      export msys2+='& set MSYS=winsymlinks:nativestrict '
-      export msys2+='& C:\\tools\\msys64\\msys2_shell.cmd -defterm -no-start'
-      export mingw64="$msys2 -mingw64 -full-path -here -c "\"\$@"\" --"
-      export msys2+=" -msys2 -c "\"\$@"\" --"
-      $msys2 pacman --sync --noconfirm --needed mingw-w64-x86_64-toolchain
-      $msys2 pacman --sync --noconfirm --needed mingw-w64-x86_64-fltk mingw-w64-x86_64-libjpeg-turbo mingw-w64-x86_64-gnutls mingw-w64-x86_64-pixman
-      taskkill //IM gpg-agent.exe //F  # https://travis-ci.community/t/4967
-      export PATH=/C/tools/msys64/mingw64/bin:$PATH
-      export MAKE=mingw32-make  # so that Autotools can find it
-    script:
-    - cmake -G "MSYS Makefiles" -DCMAKE_BUILD_TYPE=Debug -DCMAKE_MAKE_PROGRAM=mingw32-make -DCMAKE_C_COMPILER=gcc -DCMAKE=CXX_COMPILER=g++ . && mingw32-make && mingw32-make installer winvnc_installer
-    before_cache:
-    - |-
-      # https://unix.stackexchange.com/a/137322/107554
-      $msys2 pacman --sync --clean --noconfirm
-    cache:
-      directories:
-      - $HOME/AppData/Local/Temp/chocolatey
-      - /C/tools/msys64
-
-  - language: cpp
-    os: osx
-    # The default image is buggy ATM, use the latest
-    osx_image: xcode11.5
-    env:
-    addons:
-      homebrew:
-        packages:
-          - gettext
-          - fltk
-    before_install:
-    script:
-    - cmake -DCMAKE_BUILD_TYPE=Debug . && make && make dmg
-
-  - language: java
-    # compile with java 8 for backwards compatibility
-    dist: xenial
-    env:
-    jdk: openjdk8
-    before_install:
-    - sudo apt-get -y install openjdk-8-jdk
-    addons:
-      apt:
-        update: true
-    script:
-    - cd java && cmake . && make
-
-before_install:
-  - docker build -t tigervnc/$DOCKER .travis/$DOCKER
-script:
-  - .travis/$DOCKER/build.sh