add build tool for github releases

tools/build.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+#default_make_bash=$(go env GOROOT)
+#default_make_bash="$default_make_bash/src/make.bash"
+#makedir=${makebash:-"$default_make_bash"}
+version="v1.1"
+os=$(go env GOOS)
+arch=$(go env GOARCH)
+goversion=$(go version | awk '{print $3}')
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+mkdir -p dist
+for os in linux darwin windows; do
+    GOARCH=$arch
+    SUFFIX=
+    if [ "$os" == "windows" ]; then
+        GOARCH=386
+        SUFFIX=".exe"
+    fi
+    echo "... building v$version for $os/$GOARCH"
+    BUILD=$(mkdir -p _build)
+    TARGET="jenkins-goauth2.$version.$os-$GOARCH.$goversion"
+    pushd _build
+    GOOS=$os GOARCH=$GOARCH go build github.com/nordicdyno/jenkins-goauth2 \
+        || exit 1
+    #exit
+    tar czvf $TARGET.tar.gz jenkins-goauth2$SUFFIX
+    mv $TARGET.tar.gz $DIR/dist
+    popd
+    rm -rf _build
+    #make clean
+done