100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package packages
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import (
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"brunel/deb"
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"compress/bzip2"
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"fmt"
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"net/http"
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"strconv"
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"strings"
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"time"
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)
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const nest64Url = "https://ppa.pika-os.com/dists/pika/nest/binary-amd64/Packages.bz2"
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const canary64Url = "https://ppa.pika-os.com/dists/pika/canary/binary-amd64/Packages.bz2"
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const nest32Url = "https://ppa.pika-os.com/dists/pika/nest/binary-i386/Packages.bz2"
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const canary32Url = "https://ppa.pika-os.com/dists/pika/canary/binary-i386/Packages.bz2"
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type freezeItem struct {
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Name string
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Ver string
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}
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func GetFreezeItems() ([]freezeItem, []freezeItem, error) {
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freeze64, err := compareRepositories(nest64Url, canary64Url)
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if err != nil {
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return nil, nil, fmt.Errorf("error comparing 64-bit repositories: %w", err)
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}
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freeze32, err := compareRepositories(nest32Url, canary32Url)
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if err != nil {
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return nil, nil, fmt.Errorf("error comparing 32-bit repositories: %w", err)
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}
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return freeze64, freeze32, nil
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}
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func compareRepositories(nestUrl, canaryUrl string) ([]freezeItem, error) {
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nestPackages, err := getPackages(nestUrl)
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if err != nil {
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return nil, fmt.Errorf("error getting nest packages: %w", err)
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}
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canaryPackages, err := getPackages(canaryUrl)
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if err != nil {
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return nil, fmt.Errorf("error getting canary packages: %w", err)
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}
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nestSet := make(map[string]bool)
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for _, pkg := range nestPackages {
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nestSet[pkg] = true
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}
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var freezeItems []freezeItem
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for _, pkg := range canaryPackages {
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if !nestSet[pkg] {
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parts := strings.SplitN(pkg, ":", 2)
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if len(parts) == 2 {
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freezeItems = append(freezeItems, freezeItem{Name: parts[0], Ver: parts[1]})
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}
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}
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}
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return freezeItems, nil
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}
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func getPackages(url string) ([]string, error) {
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resp, err := http.Get(url + "?nocache=" + strconv.Itoa(int(time.Now().Unix())))
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if err != nil {
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return nil, fmt.Errorf("fetching package file: %w", err)
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}
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defer resp.Body.Close()
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rdr := bzip2.NewReader(resp.Body)
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sreader := deb.NewControlFileReader(rdr, false, false)
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var packages []string
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for {
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stanza, err := sreader.ReadStanza()
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if err != nil || stanza == nil {
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break
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}
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name := stanza["Package"]
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versionStr := stanza["Version"]
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if name == "" || versionStr == "" {
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continue
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}
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if strings.Contains(name, "-dbgsym") {
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continue
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}
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packages = append(packages, name+":"+versionStr)
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}
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return packages, nil
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}
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