setup CI in GitHub Actions

.github/workflows/ci.yaml

@@ -0,0 +1,33 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        vim:
+        - v8.2.0000
+        - v8.1.0000
+        - v8.0.0000
+        - v7.4
+        - v7.3
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@master
+    - name: Checkout vim-themis
+      uses: actions/checkout@master
+      with:
+        repository: thinca/vim-themis
+        path: vim-themis
+    - name: Setup Vim
+      uses: rhysd/action-setup-vim@v1
+      id: vim
+      with:
+        version: ${{ matrix.vim }}
+    - name: Test
+      env:
+        THEMIS_VIM: ${{ steps.vim.outputs.executable }}
+      run: ./vim-themis/bin/themis --reporter spec

.travis.yml

@@ -1,28 +0,0 @@
-language: generic
-
-install:
-  - git clone --depth=1 https://github.com/thinca/vim-themis /tmp/themis
-  - (if ! test -d $HOME/vim-$VIM_VERSION/bin; then
-       git clone https://github.com/vim/vim $HOME/vim &&
-       cd $HOME/vim &&
-       git checkout v$VIM_VERSION &&
-       ./configure --prefix=$HOME/vim-$VIM_VERSION &&
-       make &&
-       make install;
-     fi)
-
-cache:
-  directories:
-    - $HOME/vim-$VIM_VERSION
-
-env:
-  - VIM_VERSION=8.2.0000
-  - VIM_VERSION=8.1.0000
-  - VIM_VERSION=8.0.0000
-  - VIM_VERSION=7.4
-  - VIM_VERSION=7.3
-
-script:
-  - export PATH=$HOME/vim-$VIM_VERSION/bin:$PATH
-  - vim --version
-  - /tmp/themis/bin/themis --reporter spec