Merge pull request #80 from arborchat/travis-build-release

Build new releases on merge to master

.travis.yml

@@ -6,3 +6,4 @@ install:
 script:
     - go test -v -cover ./...
     - for os in linux darwin windows openbsd; do echo "building for $os" && env GOOS="$os" go build -o /dev/null; done
+    - ./build-releases.sh

build-releases.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -euo pipefail
+
+# only build on master
+if [ "$TRAVIS_PULL_REQUEST" != "false" ] || [ "$TRAVIS_BRANCH" != "master" ]; then
+    echo "Not building release, this is a pull request"
+    exit 0
+fi
+
+# get hub if we don't have it
+if ! command -v hub 2>&1 > /dev/null ; then
+    go get github.com/github/hub
+fi
+
+release_flags=""
+head_commit="$(git rev-parse HEAD 2> /dev/null)"
+
+# build pre-release if not on a tag, otherwise build release
+if ! git describe --tags --exact-match HEAD > /dev/null 2>&1 ; then
+    echo "Building pre-release, not tagged commit"
+    readonly tag="release-$(echo ${head_commit} | head -c 7)"
+    release_flags="--prerelease"
+else 
+    echo "Building release, tagged commit"
+    readonly tag="$(git describe --tags --exact-match HEAD 2> /dev/null)"
+fi
+
+readonly project="muscadine"
+readonly bin_name="$project"
+readonly message="Automatic build"
+
+# create the release and upload artifacts
+hub release create $release_flags --message="$message" --commitish="$head_commit" "$tag"
+for os in darwin linux windows openbsd; do
+    archive_name="$project-$os.tar.gz"
+    echo "Building $project for $os"
+    env GOOS="$os" CGO_ENABLED=0 go build -o "$bin_name" &&\
+    tar czf "$archive_name" "$bin_name" &&\
+    rm "$bin_name"
+    echo "Adding $archive_name to release $tag"
+    hub release edit --message="$message" --attach="$archive_name#muscadine_${os}" "$tag"
+done