Vendor Update

vendor/github.com/coreos/etcd/build

@@ -0,0 +1,66 @@
+#!/bin/sh -e
+
+# set some environment variables
+ORG_PATH="github.com/coreos"
+REPO_PATH="${ORG_PATH}/etcd"
+
+GIT_SHA=$(git rev-parse --short HEAD || echo "GitNotFound")
+if [ ! -z "$FAILPOINTS" ]; then
+	GIT_SHA="$GIT_SHA"-FAILPOINTS
+fi
+
+# Set GO_LDFLAGS="-s" for building without symbols for debugging.
+GO_LDFLAGS="$GO_LDFLAGS -X ${REPO_PATH}/cmd/vendor/${REPO_PATH}/version.GitSHA=${GIT_SHA}"
+
+# enable/disable failpoints
+toggle_failpoints() {
+	mode="$1"
+	if which gofail >/dev/null 2>&1; then
+		gofail "$mode" etcdserver/ mvcc/backend/
+	elif [ "$mode" != "disable" ]; then
+		echo "FAILPOINTS set but gofail not found"
+		exit 1
+	fi
+}
+
+toggle_failpoints_default() {
+	mode="disable"
+	if [ ! -z "$FAILPOINTS" ]; then mode="enable"; fi
+	toggle_failpoints "$mode"
+}
+
+etcd_build() {
+	out="bin"
+	if [ -n "${BINDIR}" ]; then out="${BINDIR}"; fi
+	toggle_failpoints_default
+	# Static compilation is useful when etcd is run in a container. $GO_BUILD_FLAGS is OK
+
+	# shellcheck disable=SC2086
+	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o "${out}/etcd" ${REPO_PATH}/cmd/etcd || return
+	# shellcheck disable=SC2086
+	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o "${out}/etcdctl" ${REPO_PATH}/cmd/etcdctl || return
+}
+
+etcd_setup_gopath() {
+	d=$(dirname "$0")
+	CDIR=$(cd "$d" && pwd)
+	cd "$CDIR"
+	etcdGOPATH="${CDIR}/gopath"
+	# preserve old gopath to support building with unvendored tooling deps (e.g., gofail)
+	if [ -n "$GOPATH" ]; then
+		GOPATH=":$GOPATH"
+	fi
+	export GOPATH=${etcdGOPATH}$GOPATH
+	rm -rf "${etcdGOPATH}/src"
+	mkdir -p "${etcdGOPATH}"
+	ln -s "${CDIR}/cmd/vendor" "${etcdGOPATH}/src"
+}
+
+toggle_failpoints_default
+
+# only build when called directly, not sourced
+if echo "$0" | grep "build$" >/dev/null; then
+	# force new gopath so builds outside of gopath work
+	etcd_setup_gopath
+	etcd_build
+fi