Replace travis by Github Actions as Linux / goreleaser CI (#301)

Author: eseliger

.github/workflows/go-ci.yml

@@ -0,0 +1,42 @@
+name: Go
+
+on:
+  - push
+
+jobs:
+  go-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+      - run: go get -d -t ./...
+      - run: go test -i ./...
+      - run: go test -race -v ./...
+
+  goreleaser:
+    runs-on: ubuntu-latest
+    needs: go-test
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+      - run: echo "${DOCKER_PASSWORD}" | docker login -u=sourcegraphci --password-stdin
+        env:
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.travis.yml

@@ -7,6 +7,7 @@ if ! echo "$VERSION" | grep -Eq '^[0-9]+\.[0-9]+\.[0-9]+$'; then
   exit 1
 fi
 
+# Push a new tag, this will trigger the goreleaser workflow in .github/workflows/go-ci.yml
 git tag "${VERSION}" -a -m "release v${VERSION}"
 git tag latest -f -a -m "release v${VERSION}"
 git push -f --tags