GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,51 @@
+name: ci
+on:
+  - pull_request
+  - push
+
+jobs:
+  Test:
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        atom_channel:
+          - stable
+          - nightly
+    steps:
+      - uses: actions/checkout@v2
+      - name: Cache
+        uses: actions/cache@v2
+        with:
+          path: |
+            'node_modules'
+            'C:/Program Files (x86)/MSBuild/Microsoft.Cpp/v4.0/v140'
+          key: ${{ runner.os }}-${{ matrix.atom_channel }}-${{ hashFiles('package.json') }}
+
+      - uses: UziTech/action-setup-atom@v1
+        with:
+          channel: ${{ matrix.atom_channel }}
+
+      - name: Install Visual Studio 2015 on Windows
+        if: ${{ contains(matrix.os, 'windows') }}
+        run: |
+          choco install visualcpp-build-tools --version=14.0.25420.1 --ignore-dependencies -y --params "'/IncludeRequired'"
+          echo ::set-env name=VCTargetsPath::'C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\v140'
+
+      - name: Install dependencies
+        run: apm install
+
+      - name: Run tests
+        run: apm test
+
+  Skip:
+    if: contains(github.event.head_commit.message, '[skip ci]')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Skip CI 🚫
+        run: echo skip ci

README.md

@@ -1,6 +1,5 @@
 # C/C++ language support in Atom
-[![macOS Build Status](https://travis-ci.org/atom/language-c.svg?branch=master)](https://travis-ci.org/atom/language-c)
-[![Windows Build Status](https://ci.appveyor.com/api/projects/status/8oy1hmp4yrij7c32/branch/master?svg=true)](https://ci.appveyor.com/project/Atom/language-c/branch/master)
+![ci](https://github.com/atom/language-c/workflows/ci/badge.svg)
 [![Dependency Status](https://david-dm.org/atom/language-c.svg)](https://david-dm.org/atom/language-c)
 
 Adds syntax highlighting and snippets to C/C++ files in Atom.

appveyor.yml

@@ -1,27 +1,6 @@
-version: "{build}"
-
-platform: x64
+# empty appveyor
+build: off
 
 branches:
-    only:
-      - master
-
-clone_depth: 10
-
-skip_tags: true
-
-environment:
-  APM_TEST_PACKAGES:
-
-  matrix:
-  - ATOM_CHANNEL: stable
-  - ATOM_CHANNEL: beta
-
-install:
-  - ps: Install-Product node 4
-
-build_script:
-  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/atom/ci/master/build-package.ps1'))
-
-test: off
-deploy: off
+  only:
+  - non-existing