65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
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// Copyright 2023 Mikhail Klementev. All rights reserved.
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// Use of this source code is governed by a AGPLv3 license
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// (or later) that can be found in the LICENSE file.
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package cache
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import (
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"fmt"
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"io/ioutil"
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"net/url"
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"os"
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"os/exec"
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"github.com/cavaliergopher/grab/v3"
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"github.com/rs/zerolog/log"
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"code.dumpstack.io/tools/out-of-tree/config"
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)
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var URL string
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func unpackTar(archive, destination string) (err error) {
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// NOTE: If you're change anything in tar command please check also
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// BSD tar (or if you're using macOS, do not forget to check GNU Tar)
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// Also make sure that sparse files are extracting correctly
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cmd := exec.Command("tar", "-Sxf", archive)
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cmd.Dir = destination + "/"
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log.Debug().Msgf("%v", cmd)
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rawOutput, err := cmd.CombinedOutput()
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if err != nil {
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err = fmt.Errorf("%v: %s", err, rawOutput)
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return
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}
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return
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}
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func DownloadQemuImage(path, file string) (err error) {
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tmp, err := ioutil.TempDir(config.Dir("tmp"), "out-of-tree_")
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if err != nil {
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return
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}
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defer os.RemoveAll(tmp)
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fileurl, err := url.JoinPath(URL, file+".tar.gz")
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if err != nil {
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return
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}
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resp, err := grab.Get(tmp, fileurl)
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if err != nil {
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err = fmt.Errorf("Cannot download %s. It looks like you need "+
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"to generate it manually and place it "+
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"to ~/.out-of-tree/images/. "+
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"Check documentation for additional information.",
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fileurl)
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return
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}
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err = unpackTar(resp.Filename, path)
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return
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}
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