[CI] use Github Actions and update test targets

* move CI workloads to Github Actions
* remove windows 32bit and say goodbye to appveyor
* test aarch64 for Julia 1.0, 1, and nightly in travis
* add linux 32bit for Julia 1

.github/workflows/UnitTest.yml

@@ -0,0 +1,55 @@
+name: Unit test
+
+on:
+  create:
+    tags:
+  push:
+    branches:
+      - master
+  pull_request:
+  schedule:
+    - cron: '20 00 1 * *'
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        julia-version: ['1.0', '1', 'nightly']
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        julia-arch: [x64]
+        # only test one 32-bit job
+        include:
+          - os: ubuntu-latest
+            julia-version: '1'
+            julia-arch: x86
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: "Set up Julia"
+        uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.julia-version }}
+          arch: ${{ matrix.julia-arch }}
+
+      - name: Cache artifacts
+        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 }}-
+      - name: "Unit Test"
+        uses: julia-actions/julia-runtest@master
+
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v1
+        with:
+          file: lcov.info
+
+

.travis.yml

@@ -1,14 +1,12 @@
 language: julia
 os:
     - linux
-    - osx
 julia:
     - 1.0
     - 1
     - nightly
+arch:
+    - arm64
 notifications:
   email: false
-
-after_success:
-  # push coverage results to Codecov
-  - julia -e 'using Pkg; cd(Pkg.dir("FixedPointNumbers")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'
+codecov: true

README.md

@@ -1,8 +1,8 @@
 # FixedPointNumbers
 
-[![Build Status](https://travis-ci.org/JuliaMath/FixedPointNumbers.jl.svg?branch=master)](https://travis-ci.org/JuliaMath/FixedPointNumbers.jl)
-[![PkgEval](https://juliaci.github.io/NanosoldierReports/pkgeval_badges/F/FixedPointNumbers.svg)](https://juliaci.github.io/NanosoldierReports/pkgeval_badges/report.html)
-[![codecov.io](http://codecov.io/github/JuliaMath/FixedPointNumbers.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaMath/FixedPointNumbers.jl?branch=master)
+[![Build Status][action-img]][action-url]
+[![Build Status][pkgeval-img]][pkgeval-url]
+[![coverage][codecov-img]][codecov-url]
 
 This library implements fixed-point number types.  A
 [fixed-point number] represents a fractional, or
@@ -142,3 +142,16 @@ Please see [CONTRIBUTING.md](CONTRIBUTING.md) for information about improving th
 [overflow]: https://en.wikipedia.org/wiki/Integer_overflow
 [rounding]: https://en.wikipedia.org/wiki/Round-off_error
 [underflow]: https://en.wikipedia.org/wiki/Arithmetic_underflow
+
+
+<!-- badges -->
+
+[action-img]: https://github.com/JuliaMath/FixedPointNumbers.jl/workflows/Unit%20test/badge.svg
+[action-url]: https://github.com/JuliaMath/FixedPointNumbers.jl/actions
+
+[pkgeval-img]: https://juliaci.github.io/NanosoldierReports/pkgeval_badges/F/FixedPointNumbers.svg
+[pkgeval-url]: https://juliaci.github.io/NanosoldierReports/pkgeval_badges/report.html
+
+[codecov-img]: https://codecov.io/gh/JuliaMath/FixedPointNumbers.jl/branch/master/graph/badge.svg
+[codecov-url]: https://codecov.io/gh/JuliaMath/FixedPointNumbers.jl
+