Multiple changes to CI (#252)

* move most platforms to GitHub Actions, leave only FreeBSD with Travis, until
  it works
* run tests also with Julia v1.3, the earliest version officially supported by
  the package
* run Travis only on master branch
* switch TagBot to the new issue-based trigger

Author: giordano

.github/workflows/TagBot.yml

@@ -1,9 +1,12 @@
 name: TagBot
 on:
-  schedule:
-    - cron: 0 * * * *
+  issue_comment:
+    types:
+      - created
+  workflow_dispatch:
 jobs:
   TagBot:
+    if: github.event_name == 'workflow_dispatch' || github.actor == 'JuliaTagBot'
     runs-on: ubuntu-latest
     steps:
       - uses: JuliaRegistries/TagBot@v1

.github/workflows/ci.yml

@@ -0,0 +1,61 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+    tags: ["*"]
+  pull_request:
+
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - "1.3"
+          - "1"
+          - "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 }}
+      - 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 }}-
+      - 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
+          flags: unittests
+  docs:
+    name: Documentation
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: "1"
+      - uses: julia-actions/julia-docdeploy@releases/v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }}

.travis.yml

@@ -1,24 +1,16 @@
 language: julia
 os:
-  - linux
-  - osx
   - freebsd
-  - windows
 julia:
+  - 1.3
   - 1
   - nightly
 notifications:
   email: false
-coveralls: true
-jobs:
-  include:
-    - stage: "Documentation"
-      julia: 1
-      os: linux
-      script:
-        - julia --project=docs/ -e 'using Pkg;
-                                    Pkg.develop(PackageSpec(path=pwd()));
-                                    Pkg.instantiate();
-                                    Pkg.build();'
-        - julia --project=docs/ docs/make.jl
-      after_success: skip
+
+branches:
+  only:
+  - master
+  - gh-pages # For building documentation
+  - /^testing-.*$/ # testing branches
+  - /^v[0-9]+\.[0-9]+\.[0-9]+$/ # version tags