Switch from Travis CI to GitHub Actions (#37)

.github/workflows/CI.yml

@@ -0,0 +1,47 @@
+name: CI
+on:
+  pull_request:
+  push:
+    branches: master
+    tags: "*"
+  schedule:
+    - cron: "0 0 1 * *"  # First of the month, midnight UTC
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - "1.0"  # LTS
+          - "1"    # Latest release
+          - nightly
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+        arch:
+          - x64
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: actions/cache@v1
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - uses: julia-actions/julia-buildpkg@latest
+      - uses: julia-actions/julia-runtest@latest
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v1
+        with:
+          file: lcov.info

README.md

@@ -1,7 +1,6 @@
 # MappedArrays
 
-[![Build Status](https://travis-ci.org/JuliaArrays/MappedArrays.jl.svg?branch=master)](https://travis-ci.org/JuliaArrays/MappedArrays.jl)
-
+[![CI](https://github.com/JuliaArrays/MappedArrays.jl/workflows/CI/badge.svg)](https://github.com/JuliaArrays/MappedArrays.jl/actions?query=workflow%3ACI)
 [![codecov.io](http://codecov.io/github/JuliaArrays/MappedArrays.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaArrays/MappedArrays.jl?branch=master)
 
 This package implements "lazy" in-place elementwise transformations of