Use github actions instead of travis

Change-Id: I8a03ca383c53bbcacc403cb954fc2ec2af8fe33d

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+name: build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: [ '1.14', '1.13' ]
+    name: Build and test on go ${{ matrix.go }}
+    steps:
+
+    - name: Set up Go ${{ matrix.go }}
+      uses: actions/setup-go@v2.0.3
+      with:
+        go-version: ${{ matrix.go }}
+      id: go
+
+    - name: Check out code
+      uses: actions/checkout@v2.2.0
+
+    - name: Install ninja
+      run: |
+        mkdir -p ${GITHUB_WORKSPACE}/ninja-bin; cd ${GITHUB_WORKSPACE}/ninja-bin
+        wget https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-linux.zip
+        unzip ninja-linux.zip
+        rm ninja-linux.zip
+        echo "::add-path::${GITHUB_WORKSPACE}/ninja-bin"
+
+    - name: Run gofmt
+      run: ./.gofmt.sh
+
+    - name: Test
+      run: go test ./...
+
+    - name: Test with race detector
+      run: go test -race -short ./...
+
+    - run: ./tests/test.sh
+    - run: ./tests/test_tree_tests.sh
+    - run: ./tests/test_tree_tests.sh -t

README.md

@@ -1,6 +1,6 @@
 Blueprint Build System
 ======================
-[![Build Status](https://travis-ci.org/google/blueprint.svg?branch=master)](https://travis-ci.org/google/blueprint) 
+[![build](https://github.com/danw/blueprint/workflows/build/badge.svg)](https://github.com/google/blueprint/actions)
 
 Blueprint is a meta-build system that reads in Blueprints files that describe
 modules that need to be built, and produces a