Update packing task to use gox

Makefile

@@ -1,11 +1,15 @@
 DEV_DEPS = github.com/kardianos/govendor \
 	github.com/vektra/mockery/.../ \
 	github.com/mailru/easyjson/... \
-	github.com/jteeuwen/go-bindata/...
+	github.com/jteeuwen/go-bindata/... \
+	github.com/mitchellh/gox
 
-BINARY = bin/ozuio
+BINNAME = ozuio
+BINARY = bin/${BINNAME}
 BINDIR = $(shell dirname ${BINARY})
 SOURCES = $(shell find . -name '*.go')
+VERSION = $(shell cat VERSION)
+OSARCH = "linux/amd64 darwin/amd64"
 
 .DEFAULT_GOAL: $(BINARY)
 $(BINARY): $(SOURCES)
@@ -64,5 +68,7 @@ web-debug-bindata:
 	cd web && go-bindata -debug -pkg web static/... templates/...
 
 .PHONY: package
-package:
-	./package.sh
+package: dev-deps
+	gox -output "pkg/${VERSION}/${BINNAME}_${VERSION}_{{.OS}}_{{.Arch}}" \
+		-osarch=${OSARCH} \
+		-ldflags "-X main.Version=${VERSION}"

package.sh

@@ -1,72 +0,0 @@
-#! /usr/bin/env bash
-set -e
-shopt -s extglob
-
-main() {
-  local name="ozuio"
-  local platforms=(
-    darwin-386 darwin-amd64
-    freebsd-386 freebsd-amd64 freebsd-arm
-    linux-386 linux-amd64 linux-arm
-    netbsd-386 netbsd-amd64 netbsd-arm
-    openbsd-386 openbsd-amd64
-    solaris-amd64
-    windows-386 windows-amd64
-  )
-  local builddir="build"
-  local outputdir="pkg"
-
-  local version
-  version="$(get-version)"
-
-  local workdir="${builddir}/${version}"
-  mkdir -p "$workdir"
-
-  for platform in "${platforms[@]}"; do
-    if [[ "$platform" =~ ^(.+)-(.+)$ ]]; then
-      local os="${BASH_REMATCH[1]}"
-      local arch="${BASH_REMATCH[2]}"
-      local pkg="${name}_${version}_${os}_${arch}"
-      local pkgdir="${workdir}/${pkg}"
-      local binary="${pkgdir}/${name}"
-
-      if [ "$os" == "windows" ]; then
-        binary="${binary}.exe"
-      fi
-
-      echo "building $pkg"
-      GOOS="$os" GOARCH="$arch" go build -o "$binary" \
-          -ldflags "-X main.Version=${version}"
-
-      cp "README.md" "${pkgdir}/"
-
-      mkdir -p "${outputdir}/${version}"
-
-      if [ "$os" == "windows" ]; then
-        local archive="${outputdir}/${version}/${pkg}.zip"
-        echo "creating ${archive}"
-        local cwd="$(pwd)"
-        cd "$workdir"
-        zip -r "../../$archive" "$pkg"
-        cd "$cwd"
-      else
-        local archive="${outputdir}/${version}/${pkg}.tar.gz"
-        echo "creating ${archive}"
-        tar -C "$workdir" -czf "$archive" "$pkg"
-      fi
-    fi
-  done
-}
-
-get-version() {
-  trim "$(cat "VERSION")"
-}
-
-trim() {
-  local string="$@"
-  string="${string#"${string%%[![:space:]]*}"}"
-  string="${string%"${string##*[![:space:]]}"}"
-  echo -n "$string"
-}
-
-main