Automated Travis/Github releases

.travis.yml

@@ -1 +1,20 @@
 language: go
+if: NOT tag = master-auto
+before_deploy:
+  - cat PLATFORMS | xargs -L 1 -P 15 ./build-cross.sh
+  - git remote add gh https://${GITHUB_API_KEY}@github.com/${TRAVIS_REPO_SLUG}.git
+  - git fetch gh --tags
+  - git tag -f master-auto
+  - git push gh --tags -f
+  - git remote rm gh
+deploy:
+  provider: releases
+  api_key: $GITHUB_API_KEY
+  file_glob: true
+  file: "builds/*"
+  skip_cleanup: true
+  prerelease: true
+  overwrite: true
+  target_commitish: $TRAVIS_COMMIT
+  on:
+    branch: master

PLATFORMS

@@ -0,0 +1,13 @@
+freebsd_386
+freebsd_amd64
+freebsd_arm7
+linux_386
+linux_amd64
+linux_arm64
+linux_arm7
+mac_amd64
+openbsd_386
+openbsd_amd64
+solaris_amd64
+windows_386
+windows_amd64

README.md

@@ -1,6 +1,6 @@
 <img src="https://i.imgur.com/UWhSoQj.png" width="450" alt="Checkup">
 
-[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg?style=flat-square)](https://godoc.org/github.com/sourcegraph/checkup) [![Sourcegraph](https://sourcegraph.com/github.com/sourcegraph/checkup/-/badge.svg)](https://sourcegraph.com/github.com/sourcegraph/checkup?badge)
+[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg?style=flat-square)](https://godoc.org/github.com/sourcegraph/checkup) [![Sourcegraph](https://sourcegraph.com/github.com/sourcegraph/checkup/-/badge.svg)](https://sourcegraph.com/github.com/sourcegraph/checkup?badge) [![TravisCI](https://api.travis-ci.org/sourcegraph/checkup.svg?branch=master)](https://travis-ci.org/sourcegraph/checkup/)
 
 
 **Checkup is distributed, lock-free, self-hosted health checks and status pages, written in Go.**
@@ -484,3 +484,37 @@ docker run --net=host --rm \
 ```
 
 This will create a checkup binary in the root project folder.
+
+### Building with the Cross-Compiler
+
+Alternative operating systems and architectures can be built using the [build-cross.sh](./build-cross.sh) script which will output binaries to `./builds/`. The build target can be passed in an `[OS]_[ARCH]` format:
+
+```sh
+./build-cross.sh linux_amd64
+./build-cross.sh freebsd_386
+
+ls -al builds/
+# checkup_freebsd_386
+# checkup_linux_amd64
+```
+
+Multiple platforms can be built in parallel by sending the contents of [PLATFORMS](./PLATFORMS) to the [build-cross.sh](./build-cross.sh) script:
+
+```sh
+# -P 15 : run a max of 15 processes simultaneously
+cat PLATFORMS | xargs -L 1 -P 15 ./build-cross.sh
+
+ls -al builds/
+# checkup_freebsd_386
+# checkup_freebsd_amd64
+# checkup_linux_386
+# checkup_linux_amd64
+# checkup_linux_arm64
+# checkup_openbsd_386
+# checkup_openbsd_amd64
+# checkup_solaris_amd64
+```
+
+### Builds via Travis CI
+
+Automated builds happen in [Travis CI](https://travis-ci.org/sourcegraph/checkup/) each time `master` branch is updated. See the latest prerelease at [sourcegraph/checkup/releases](https://github.com/sourcegraph/checkup/releases).

build-cross.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+#
+# Cross-compiles the project for several platforms.
+# Outputs to ./builds/
+#
+# Single-run usage:
+#   ./build-cross.sh linux_amd64
+#   
+# Parallel usage:
+#   cat PLATFORMS | xargs -L 1 -P 8 ./build-cross.sh
+
+if [ -z "$1" ]; then
+  echo "Error: Specify a platform"
+  exit 1
+fi
+
+echo Building platform \"$1\" ...
+
+mkdir -p ./builds/
+pushd ./cmd/checkup/ > /dev/null 2>&1
+
+OS=$(echo $1 | cut -d'_' -f1)
+ARCH=$(echo $1 | cut -d'_' -f2)
+GOOS=$OS GOARCH=$ARCH go build -v -ldflags '-s' -o "../../builds/checkup_$1" > /dev/null 2>&1
+
+echo Completed platform \"$1\"
+popd > /dev/null 2>&1