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package git
import (
"errors"
"fmt"
"io"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
)
var ()
var (
MissingHeadErr = errors.New("Head not found")
)
type (
GitRepository struct {
path string
}
)
func NewGitRepository(dir string) *GitRepository {
return &GitRepository{
path: dir,
}
}
func (g *GitRepository) Path() string {
return g.path
}
func (g *GitRepository) LastCommit() (*object.Commit, error) {
repo, err := git.PlainOpen(g.path)
if err != nil {
return nil, err
}
ref, err := repo.Head()
if err != nil {
return nil, errors.Join(MissingHeadErr, err)
}
c, err := repo.CommitObject(ref.Hash())
if err != nil {
return nil, err
}
return c, nil
}
func (g *GitRepository) Commits() ([]*object.Commit, error) {
repo, err := git.PlainOpen(g.path)
if err != nil {
return nil, err
}
ref, err := repo.Head()
if err != nil {
return nil, errors.Join(MissingHeadErr, err)
}
ci, err := repo.Log(&git.LogOptions{From: ref.Hash()})
if err != nil {
return nil, fmt.Errorf("commits from ref: %w", err)
}
commits := []*object.Commit{}
// TODO: for now only load first 1000
for x := 0; x < 1000; x++ {
c, err := ci.Next()
if err != nil && errors.Is(err, io.EOF) {
break
} else if err != nil {
return nil, err
}
commits = append(commits, c)
}
if err != nil {
return nil, err
}
return commits, nil
}
func (g *GitRepository) Tags() ([]*object.Tag, error) {
repo, err := git.PlainOpen(g.path)
if err != nil {
return nil, err
}
ti, err := repo.TagObjects()
if err != nil {
return nil, err
}
tags := []*object.Tag{}
err = ti.ForEach(func(t *object.Tag) error {
tags = append(tags, t)
return nil
})
if err != nil {
return nil, err
}
return tags, nil
}
func (g *GitRepository) Branches() ([]*plumbing.Reference, error) {
repo, err := git.PlainOpen(g.path)
if err != nil {
return nil, err
}
bs, err := repo.Branches()
if err != nil {
return nil, err
}
branches := []*plumbing.Reference{}
err = bs.ForEach(func(ref *plumbing.Reference) error {
branches = append(branches, ref)
return nil
})
if err != nil {
return nil, err
}
return branches, nil
}
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