100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"sort"
|
|
|
|
git "go.wit.com/lib/libgit2"
|
|
"go.wit.com/log"
|
|
)
|
|
|
|
func showtags(repo *git.Repository) {
|
|
// Map: commit OID -> list of tags pointing to it
|
|
tagMap := make(map[string][]string)
|
|
|
|
// Walk through all tag names
|
|
tags, err := repo.NewReferenceIteratorGlob("refs/tags/*")
|
|
if err != nil {
|
|
log.Fatalf("Failed to iterate tags: %v", err)
|
|
}
|
|
|
|
for {
|
|
ref, err := tags.Next()
|
|
if err != nil {
|
|
break // Done iterating
|
|
}
|
|
|
|
name := ref.Shorthand()
|
|
target, err := repo.RevparseSingle(ref.Name())
|
|
if err != nil {
|
|
log.Printf("Skipping unresolved tag: %s", name)
|
|
continue
|
|
}
|
|
|
|
commitOID := target.Id().String()
|
|
tagMap[commitOID] = append(tagMap[commitOID], name)
|
|
log.Info("tag:", commitOID, name, target)
|
|
}
|
|
|
|
// Identify and delete duplicate tags
|
|
for commit, tagList := range tagMap {
|
|
if len(tagList) > 1 {
|
|
sort.Strings(tagList)
|
|
fmt.Printf("Commit %s has duplicates: %v\n", commit, tagList)
|
|
|
|
// Keep the first tag, delete the rest
|
|
for _, tag := range tagList[1:] {
|
|
refname := "refs/tags/" + tag
|
|
log.Info(refname)
|
|
/*
|
|
if err := repo.References.Remove(refname); err != nil {
|
|
log.Printf("Failed to delete tag %s: %v", tag, err)
|
|
} else {
|
|
fmt.Printf("Deleted tag: %s\n", tag)
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func printCommitsForTag(repo *git.Repository, tagName string) error {
|
|
// Resolve tag reference
|
|
ref, err := repo.References.Lookup("refs/tags/" + tagName)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to find tag %s: %w", tagName, err)
|
|
}
|
|
|
|
// Resolve to commit object (may be annotated tag or direct commit)
|
|
obj, err := ref.Peel(git.ObjectCommit)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to peel tag %s to commit: %w", tagName, err)
|
|
}
|
|
|
|
start, err := obj.AsCommit()
|
|
if err != nil {
|
|
return fmt.Errorf("peeled object is not a commit: %w", err)
|
|
}
|
|
|
|
// Walk the history
|
|
walker, err := repo.Walk()
|
|
if err != nil {
|
|
return fmt.Errorf("failed to create walker: %w", err)
|
|
}
|
|
|
|
if err := walker.Push(start.Id()); err != nil {
|
|
return fmt.Errorf("failed to push start commit: %w", err)
|
|
}
|
|
|
|
fmt.Printf("Commits for tag %s:\n", tagName)
|
|
err = walker.Iterate(func(c *git.Commit) bool {
|
|
fmt.Printf("%s %s\n", c.Id().String(), c.Summary())
|
|
return true
|
|
})
|
|
if err != nil {
|
|
return fmt.Errorf("error during walk: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|