mirror of https://github.com/containers/podman.git
116 lines
2.6 KiB
Go
116 lines
2.6 KiB
Go
//go:build amd64 || arm64
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// +build amd64 arm64
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package machine
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import (
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"errors"
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"fmt"
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"io"
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"os"
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"path"
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"strings"
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"net/http"
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"net/url"
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"path/filepath"
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"time"
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)
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const (
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githubLatestReleaseURL = "https://github.com/containers/podman-wsl-fedora/releases/latest/download/rootfs.tar.xz"
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)
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type FedoraDownload struct {
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Download
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}
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func NewFedoraDownloader(vmType, vmName, releaseStream string) (DistributionDownload, error) {
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downloadURL, version, size, err := getFedoraDownload(githubLatestReleaseURL)
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if err != nil {
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return nil, err
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}
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cacheDir, err := GetCacheDir(vmType)
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if err != nil {
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return nil, err
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}
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imageName := fmt.Sprintf("fedora-podman-%s.tar.xz", version)
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f := FedoraDownload{
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Download: Download{
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Arch: getFcosArch(),
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Artifact: artifact,
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CacheDir: cacheDir,
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Format: Format,
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ImageName: imageName,
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LocalPath: filepath.Join(cacheDir, imageName),
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URL: downloadURL,
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VMName: vmName,
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Size: size,
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},
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}
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dataDir, err := GetDataDir(vmType)
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if err != nil {
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return nil, err
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}
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f.Download.LocalUncompressedFile = f.getLocalUncompressedFile(dataDir)
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return f, nil
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}
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func (f FedoraDownload) Get() *Download {
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return &f.Download
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}
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func (f FedoraDownload) HasUsableCache() (bool, error) {
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info, err := os.Stat(f.LocalPath)
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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return false, nil
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}
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return false, err
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}
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return info.Size() == f.Size, nil
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}
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func (f FedoraDownload) CleanCache() error {
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// Set cached image to expire after 2 weeks
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expire := 14 * 24 * time.Hour
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return removeImageAfterExpire(f.CacheDir, expire)
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}
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func getFedoraDownload(releaseURL string) (*url.URL, string, int64, error) {
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downloadURL, err := url.Parse(releaseURL)
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if err != nil {
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return nil, "", -1, fmt.Errorf("invalid URL generated from discovered Fedora file: %s: %w", releaseURL, err)
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}
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resp, err := http.Head(releaseURL)
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if err != nil {
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return nil, "", -1, fmt.Errorf("head request failed: %s: %w", releaseURL, err)
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}
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_ = resp.Body.Close()
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contentLen := resp.ContentLength
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if resp.StatusCode != http.StatusOK {
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return nil, "", -1, fmt.Errorf("head request failed: %s: %w", releaseURL, err)
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}
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verURL := *downloadURL
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verURL.Path = path.Join(path.Dir(downloadURL.Path), "version")
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resp, err = http.Get(verURL.String())
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if err != nil {
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return nil, "", -1, fmt.Errorf("get request failed: %s: %w", verURL.String(), err)
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}
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defer resp.Body.Close()
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bytes, err := io.ReadAll(&io.LimitedReader{R: resp.Body, N: 1024})
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if err != nil {
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return nil, "", -1, fmt.Errorf("failed reading: %s: %w", verURL.String(), err)
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}
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return downloadURL, strings.TrimSpace(string(bytes)), contentLen, nil
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}
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