arran 🇦🇺

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  • 72 Comments
Joined 1 year ago
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Cake day: September 23rd, 2023

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  • Moved from Gentoo to Ubuntu in 2008 as I needed to focus more on my job, moved back to Gentoo in 2022. Snaps were part of it, but really the lack of maintenance and vision around the apt repository was really the issue. More and more I was installing stray debs, or having to use flatpaks / AppImages for what what I wanted the system to manage for me.

    Not that I’ve entirely stopped using flatpaks or AppImages, but the process of creating an ebuild is far simpler than trying to do anything with a deb. For a while I had hope about the ppa, however that became fewer and fewer. I do think that the battle to have a comprehensive software repository is a loosing one because of the way things are currently structured.


















  • I asked chatgpt to write a go program for this, this looks roughly correct (I have used both libraries before) obviously this won’t be enough for your particular use case. I imagine you can integrate an RSS feed to your site, however if you’re using something like hugo perhaps output it as a csv.

    Super low effort but a good start I think:

    package main
    
    import (
    	"fmt"
    	"log"
    	"os"
    	"strings"
    	"time"
    
    	git "github.com/go-git/go-git/v5"
    	rss "github.com/jteeuwen/go-pkg-rss"
    )
    
    const (
    	timeout = 5 // timeout in seconds for the RSS feed generation
    )
    
    // Repository represents a git repository with its URL
    type Repository struct {
    	URL string
    }
    
    // Repositories is the list of git repositories
    var Repositories = []Repository{
    	{URL: "https://github.com/owner/repo1"},
    	{URL: "https://github.com/owner/repo2"},
    	// Add more repositories here
    }
    
    // FetchLatestTag fetches the latest tag from a git repository
    func FetchLatestTag(repoURL string) (string, string, error) {
    	// Clone the repository to a temporary directory
    	dir, err := os.MkdirTemp("", "repo")
    	if err != nil {
    		return "", "", err
    	}
    	defer os.RemoveAll(dir)
    
    	_, err = git.PlainClone(dir, true, &git.CloneOptions{
    		URL:      repoURL,
    		Progress: os.Stdout,
    	})
    	if err != nil {
    		return "", "", err
    	}
    
    	repo, err := git.PlainOpen(dir)
    	if err != nil {
    		return "", "", err
    	}
    
    	tags, err := repo.Tags()
    	if err != nil {
    		return "", "", err
    	}
    
    	var latestTag string
    	var latestCommitTime time.Time
    
    	err = tags.ForEach(func(ref *plumbing.Reference) error {
    		tag := ref.Name().Short()
    		commit, err := repo.CommitObject(ref.Hash())
    		if err != nil {
    			return err
    		}
    		if commit.Committer.When.After(latestCommitTime) {
    			latestCommitTime = commit.Committer.When
    			latestTag = tag
    		}
    		return nil
    	})
    	if err != nil {
    		return "", "", err
    	}
    
    	return latestTag, latestCommitTime.Format(time.RFC1123Z), nil
    }
    
    // GenerateRSS generates an RSS feed from the latest tags of the repositories
    func GenerateRSS() string {
    	feed := rss.Feed{
    		Title:       "Latest Tags from Git Repositories",
    		Link:        &rss.Link{Href: "http://example.com/"},
    		Description: "This feed provides the latest tags from a list of git repositories.",
    		Created:     time.Now(),
    	}
    
    	for _, repo := range Repositories {
    		tag, date, err := FetchLatestTag(repo.URL)
    		if err != nil {
    			log.Printf("Error fetching latest tag for repository %s: %v", repo.URL, err)
    			continue
    		}
    		feed.Items = append(feed.Items, &rss.Item{
    			Title:       fmt.Sprintf("Latest tag for %s: %s", repo.URL, tag),
    			Link:        &rss.Link{Href: repo.URL},
    			Description: fmt.Sprintf("The latest tag for repository %s is %s, created on %s.", repo.URL, tag, date),
    			Created:     time.Now(),
    		})
    	}
    
    	var rssFeed strings.Builder
    	rssFeed.WriteString(xml.Header)
    	if err := feed.Write(&rssFeed); err != nil {
    		log.Fatalf("Error generating RSS feed: %v", err)
    	}
    
    	return rssFeed.String()
    }
    
    func main() {
    	rssFeed := GenerateRSS()
    	fmt.Println(rssFeed)
    }