Run tests on drone.io

added dockerfile

use custom image

install task inside container

install bzip2

install unzip

install test tools

restore coverage collection

add codecov to the image

coverage only on master

Author: masci

Diff for: .drone.yml

@@ -0,0 +1,39 @@
+kind: pipeline
+name: default
+
+steps:
+- name: lint
+  image: arduino/arduino-cli:drone-0.2.0
+  commands:
+    # Check if the Go code is properly formatted and run the linter
+    - task check
+    # Ensure protobufs compile
+    - task protoc
+
+- name: build
+  image: arduino/arduino-cli:drone-0.2.0
+  commands:
+    - task build
+
+- name: test
+  image: arduino/arduino-cli:drone-0.2.0
+  commands:
+    - task test
+    - task test-legacy
+
+# Contrary to other CI platforms, uploading reports to Codecov requires Drone to provide a token.
+# To avoid exposing the Codecov token to external PRs, we only upload coverage when we merge on
+# `master`.
+- name: coverage
+  image: arduino/arduino-cli:drone-0.2.0
+  environment:
+    CODECOV_TOKEN:
+      from_secret: codecov_token
+  commands:
+    - codecov -cF unit -f coverage_unit.txt -t $CODECOV_TOKEN
+    - codecov -cF integ -f coverage_integ.txt -t $CODECOV_TOKEN
+  when:
+    branch:
+      - master
+    event:
+      - push

Diff for: Dockerfiles/CI/Dockerfile

@@ -0,0 +1,24 @@
+FROM golang:1.12
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+		bzip2 \
+        unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV PROTOBUF_VER 3.8.0
+
+# NOTE: most of the following assume WORDKIR is '/'
+RUN set -ex \
+    # Task executor, will be installed in /bin
+    && curl -sL https://taskfile.dev/install.sh | sh \
+    # Codecov uploader
+    && curl -o /bin/codecov -LO https://codecov.io/bash && chmod +x /bin/codecov \
+    # Go runtime dependencies
+    && go get github.com/golangci/govet \
+    && go get golang.org/x/lint/golint \
+    # Protobuf tooling
+    && go get github.com/golang/protobuf/protoc-gen-go \
+    && mkdir protobuf && cd protobuf \
+    && curl -LO https://github.com/google/protobuf/releases/download/v$PROTOBUF_VER/protoc-$PROTOBUF_VER-linux-x86_64.zip \
+    && unzip protoc-$PROTOBUF_VER-linux-x86_64.zip && cp ./bin/* /bin/ \
+    && cd .. &&  rm -rf protobuf