mirror of
https://github.com/etcd-io/etcd.git
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2a151c8982
The io/ioutil package has been deprecated as of Go 1.16, see https://golang.org/doc/go1.16#ioutil. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// Copyright 2018 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build linux
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// +build linux
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package main
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"os/exec"
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"path/filepath"
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"go.etcd.io/etcd/client/pkg/v3/fileutil"
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)
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const downloadURL = `https://storage.googleapis.com/etcd/%s/etcd-%s-linux-amd64.tar.gz`
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func install(ver, dir string) (string, error) {
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ep := fmt.Sprintf(downloadURL, ver, ver)
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resp, err := http.Get(ep)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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d, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", err
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}
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tarPath := filepath.Join(dir, "etcd.tar.gz")
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if err = os.WriteFile(tarPath, d, fileutil.PrivateFileMode); err != nil {
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return "", err
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}
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// parametrizes to prevent attackers from adding arbitrary OS commands
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if err = exec.Command("tar", "xzvf", tarPath, "-C", dir, "--strip-components=1").Run(); err != nil {
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return "", err
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}
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return filepath.Join(dir, "etcd"), nil
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}
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