main.go

// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Package main is a simple wrapper of the real etcd entrypoint package
// (located at github.com/coreos/etcd/etcdmain) to ensure that etcd is still
// "go getable"; e.g. `go get github.com/coreos/etcd` works as expected and
// builds a binary in $GOBIN/etcd
//
// This package should NOT be extended or modified in any way; to modify the
// etcd binary, work in the `github.com/coreos/etcd/etcdmain` package.
//

package main

import (
	"os"
	"path"

	"github.com/coreos/etcd-starter/starter"
)

const defaultInternalBinaryDir = "/usr/libexec/etcd/internal_versions/"

func main() {
	dir := os.Getenv("ETCD_INTERNAL_BINARY_DIR")
	if dir == "" {
		dir = defaultInternalBinaryDir
	}
	// etcd-starter -version [--version] is our special case here.
	// we want our users to know all the version etcd-starter is operating on.
	if path.Base(os.Args[0]) == "etcd-starter" {
		if len(os.Args) == 2 && (os.Args[1] == "-version" || os.Args[1] == "--version") {
			printVersions(dir)
			return
		}
	}
	starter.StartDesiredVersion(dir, os.Args[1:])
}