circleci: replace Linux tests on Travis CI with CircleCI

CircleCI is faster and has more features than Travis CI. Additionally,
based on the recent news, the future of Travis CI is rather uncertain.

Keep using Travis CI for macOS testing at the moment, as open source
projects will need to get special permission to use CircleCI for macOS
tests.

.circleci/config.yml

@@ -0,0 +1,91 @@
+version: 2.1
+
+commands:
+  submodules:
+    steps:
+      - run:
+          name: "Pull submodules"
+          command: git submodule update --init
+  apt-dependencies:
+    parameters:
+      llvm:
+        type: string
+    steps:
+      - run:
+          name: "Install apt dependencies"
+          command: |
+            echo 'deb http://apt.llvm.org/stretch/ llvm-toolchain-stretch<<parameters.llvm>> main' | sudo tee /etc/apt/sources.list.d/llvm.list
+            wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+            sudo apt-get update
+            sudo apt-get install \
+                llvm \
+                python3 \
+                llvm<<parameters.llvm>>-dev \
+                clang<<parameters.llvm>> \
+                libclang<<parameters.llvm>>-dev \
+                gcc-arm-linux-gnueabihf \
+                binutils-arm-none-eabi \
+                libc6-dev-armel-cross \
+                gcc-aarch64-linux-gnu \
+                libc6-dev-arm64-cross \
+                qemu-system-arm \
+                qemu-user \
+                gcc-avr \
+                avr-libc
+  dep:
+    steps:
+      - run:
+          name: "Install Go dependencies"
+          command: |
+            curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+            dep ensure --vendor-only
+  smoketest:
+    steps:
+      - run: tinygo build -size short -o test.elf -target=pca10040            examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=pca10040            examples/blinky2
+      - run: tinygo build -size short -o blinky2                              examples/blinky2
+      - run: tinygo build -size short -o test.elf -target=pca10040            examples/test
+      - run: tinygo build -size short -o test.elf -target=microbit            examples/echo
+      - run: tinygo build -size short -o test.elf -target=nrf52840-mdk        examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=pca10031            examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=bluepill            examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=arduino             examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=digispark           examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=reelboard           examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=reelboard           examples/blinky2
+      - run: tinygo build -size short -o test.elf -target=pca10056            examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=pca10056            examples/blinky2
+      - run: tinygo build -size short -o test.elf -target=itsybitsy-m0        examples/blinky1
+      - run: tinygo build -size short -o test.elf -target=circuitplay-express examples/blinky1
+
+
+jobs:
+  test-llvm7-go111:
+    docker:
+      - image: circleci/golang:1.11
+
+    working_directory: /go/src/github.com/tinygo-org/tinygo
+    steps:
+      - checkout
+      - submodules
+      - apt-dependencies:
+          llvm: "-7"
+      - restore_cache:
+          keys:
+            - go-cache-{{ checksum "Gopkg.lock" }}-{{ .Environment.CIRCLE_PREVIOUS_BUILD_NUM }}
+            - go-cache-{{ checksum "Gopkg.lock" }}
+      - dep
+      - run: go install .
+      - run: make test
+      - run: make gen-device -j4
+      - smoketest
+      - save_cache:
+          key: go-cache-{{ checksum "Gopkg.lock" }}-{{ .Environment.CIRCLE_BUILD_NUM }}
+          paths:
+            - ~/.cache/go-build
+            - ~/.cache/tinygo
+
+workflows:
+  test-all:
+    jobs:
+      - test-llvm7-go111

.travis.yml

@@ -2,31 +2,13 @@ language: go
 
 matrix:
   include:
-  - dist: xenial
-    go: "1.11"
   - os: osx
     go: "1.11"
     env: PATH="/usr/local/opt/llvm/bin:$PATH"
+    before_install:
+    - mkdir -p /Users/travis/gopath/bin
 
 addons:
-  apt:
-    sources:
-    - sourceline: 'ppa:ubuntu-toolchain-r'
-    - sourceline: 'deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-7 main'
-      key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
-    packages:
-    - llvm-7-dev
-    - clang-7
-    - libclang-7-dev
-    - gcc-arm-linux-gnueabihf
-    - binutils-arm-none-eabi
-    - libc6-dev-armhf-cross
-    - gcc-aarch64-linux-gnu
-    - libc6-dev-arm64-cross
-    - qemu-system-arm
-    - qemu-user
-    - gcc-avr
-    - avr-libc
   homebrew:
     update: true
     taps: ArmMbed/homebrew-formulae
@@ -36,7 +18,6 @@ addons:
     - arm-none-eabi-gcc
 
 install:
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then mkdir -p /Users/travis/gopath/bin; fi
   - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
   - dep ensure --vendor-only
 
@@ -52,8 +33,6 @@ script:
   - tinygo build -size short -o test.nrf.elf       -target=nrf52840-mdk examples/blinky1
   - tinygo build -size short -o blinky1.nrf51d.elf -target=pca10031     examples/blinky1
   - tinygo build -size short -o blinky1.stm32.elf  -target=bluepill     examples/blinky1
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then tinygo build -size short -o blinky1.avr.elf    -target=arduino      examples/blinky1; fi
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then tinygo build -size short -o blinky1.avr.elf    -target=digispark    examples/blinky1; fi
   - tinygo build -size short -o blinky1.reel.elf   -target=reelboard    examples/blinky1
   - tinygo build -size short -o blinky2.reel.elf   -target=reelboard    examples/blinky2
   - tinygo build -size short -o blinky1.pca10056.elf    -target=pca10056     examples/blinky1

README.md

@@ -1,6 +1,7 @@
 # TinyGo - Go compiler for small places
 
-[![Build Status](https://travis-ci.com/tinygo-org/tinygo.svg?branch=dev)](https://travis-ci.com/tinygo-org/tinygo)
+[![Travis CI](https://travis-ci.com/tinygo-org/tinygo.svg?branch=dev)](https://travis-ci.com/tinygo-org/tinygo)
+[![CircleCI](https://circleci.com/gh/tinygo-org/tinygo/tree/dev.svg?style=svg)](https://circleci.com/gh/tinygo-org/tinygo/tree/dev)
 
 TinyGo is a Go compiler intended for use in small places such as microcontrollers, WebAssembly (WASM), and command-line tools.