90 lines
2.4 KiB
Go
90 lines
2.4 KiB
Go
package distros
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import (
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"bufio"
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"errors"
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"fmt"
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"net/http"
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"regexp"
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"github.com/rs/zerolog/log"
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"libguestfs.org/guestfs"
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"git.csclub.uwaterloo.ca/cloud/cloudbuild/pkg/config"
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)
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type DebianTemplateManager struct {
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TemplateManager
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}
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// NewDebianTemplateManager returns a DebianTemplateManager with the given
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// config values.
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func NewDebianTemplateManager(cfg *config.Config) *DebianTemplateManager {
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logger := log.With().Str("distro", "debian").Logger()
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debianTemplateManager := DebianTemplateManager{
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TemplateManager{
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cfg: cfg,
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logger: &logger,
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impl: nil,
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},
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}
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debianTemplateManager.TemplateManager.impl = &debianTemplateManager
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return &debianTemplateManager
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}
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func (mgr *DebianTemplateManager) GetLatestVersion() (version string, codename string, err error) {
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// We're only interested in the major version (integer part)
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versionPattern := regexp.MustCompile("^Version: (\\d+)(?:\\.\\d)?$")
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codenamePattern := regexp.MustCompile("^Codename: ([a-z-]+)$")
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resp, err := http.Get("https://mirror.csclub.uwaterloo.ca/debian/dists/stable/InRelease")
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if err != nil {
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return
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}
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defer resp.Body.Close()
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scanner := bufio.NewScanner(resp.Body)
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for scanner.Scan() {
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if version == "" {
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submatches := versionPattern.FindStringSubmatch(scanner.Text())
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if submatches != nil {
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version = submatches[1]
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}
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}
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if codename == "" {
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submatches := codenamePattern.FindStringSubmatch(scanner.Text())
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if submatches != nil {
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codename = submatches[1]
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}
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}
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if version != "" && codename != "" {
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break
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}
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}
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if version == "" {
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err = errors.New("Could not determine latest version of Debian")
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}
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return
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}
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func (mgr *DebianTemplateManager) DownloadTemplate(version, codename string) (path string, err error) {
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filename := fmt.Sprintf("debian-%s-genericcloud-amd64.qcow2", version)
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url := fmt.Sprintf("https://cloud.debian.org/images/cloud/%s/latest/%s", codename, filename)
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return mgr.DownloadTemplateGeneric(filename, url)
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}
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func (mgr *DebianTemplateManager) CommandToUpdatePackageCache() []string {
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return debianCommandToUpdatePackageCache()
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}
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func (mgr *DebianTemplateManager) PerformDistroSpecificModifications(handle *guestfs.Guestfs) (err error) {
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if err = mgr.setChronyOptions(handle); err != nil {
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return
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}
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if err = mgr.setDhclientOptions(handle); err != nil {
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return
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}
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if err = mgr.replaceDebianMirrorUrls(handle); err != nil {
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return
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}
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return
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}
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