feat: Add wrapper for commit

Add a wrapper to the commit log that also contains possible reference.
This will be useful once to later display the reference in the commit
log.

4 files changed, 63 insertions, 12 deletions

diff --git a/pkg/git/git.go b/pkg/git/git.go
index b33afa7..9e7f9c9 100644
--- a/pkg/git/git.go
+++ b/pkg/git/git.go
@@ -32,6 +32,10 @@ type (
 		ref *plumbing.Reference
 		tag *object.Tag
 	}
+	CommitReference struct {
+		commit *object.Commit
+		ref    *plumbing.Reference
+	}
 	infoWrapper struct {
 		name    string
 		size    int64
@@ -81,7 +85,7 @@ func (g *GitRepository) Path() string {
 	return g.path
 }
 
-func (g *GitRepository) LastCommit() (*object.Commit, error) {
+func (g *GitRepository) LastCommit() (*CommitReference, error) {
 	err := g.validateRef()
 	if err != nil {
 		return nil, err
@@ -91,10 +95,27 @@ func (g *GitRepository) LastCommit() (*object.Commit, error) {
 	if err != nil {
 		return nil, err
 	}
-	return c, nil
+
+	iter, err := g.repository.Tags()
+	if err != nil {
+		return nil, err
+	}
+
+	commitRef := &CommitReference{commit: c}
+	if err := iter.ForEach(func(ref *plumbing.Reference) error {
+		if ref.Hash() != c.Hash {
+			return nil
+		}
+		commitRef.ref = ref
+		return nil
+	}); err != nil {
+		return nil, err
+	}
+
+	return commitRef, nil
 }
 
-func (g *GitRepository) Commits(count int, from string) ([]*object.Commit, *object.Commit, error) {
+func (g *GitRepository) Commits(count int, from string) ([]*CommitReference, *object.Commit, error) {
 	err := g.validateRef()
 	if err != nil {
 		return nil, nil, err
@@ -115,7 +136,7 @@ func (g *GitRepository) Commits(count int, from string) ([]*object.Commit, *obje
 		return nil, nil, fmt.Errorf("commits from ref: %w", err)
 	}
 
-	commits := []*object.Commit{}
+	commitRefs := []*CommitReference{}
 	var next *object.Commit
 
 	// iterate one more item so we can fetch the next commit
@@ -129,11 +150,29 @@ func (g *GitRepository) Commits(count int, from string) ([]*object.Commit, *obje
 		if x == count {
 			next = c
 		} else {
-			commits = append(commits, c)
+			commitRefs = append(commitRefs, &CommitReference{commit: c})
 		}
 	}
 
-	return commits, next, nil
+	// new we fetch for possible tags for each commit
+	iter, err := g.repository.Tags()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if err := iter.ForEach(func(ref *plumbing.Reference) error {
+		for _, c := range commitRefs {
+			if c.commit.Hash != ref.Hash() {
+				continue
+			}
+			c.ref = ref
+		}
+		return nil
+	}); err != nil {
+		return nil, nil, err
+	}
+
+	return commitRefs, next, nil
 }
 
 func (g *GitRepository) Head() (*plumbing.Reference, error) {
@@ -454,6 +493,10 @@ func (t *TagReference) Message() string {
 	return ""
 }
 
+func (c *CommitReference) Commit() *object.Commit {
+	return c.commit
+}
+
 func (self *tagList) Len() int {
 	return len(self.refs)
 }
diff --git a/pkg/handler/git/handler.go b/pkg/handler/git/handler.go
index 80f7de6..33adc8d 100644
--- a/pkg/handler/git/handler.go
+++ b/pkg/handler/git/handler.go
@@ -384,7 +384,7 @@ func (g *GitHandler) Commit(w http.ResponseWriter, r *http.Request) error {
 		Name: name,
 		Ref:  ref,
 		GitItemBase: &templates.GitItemCommitPage{
-			Commit: commit,
+			Commit: commit.Commit(),
 			Diff:   code.Bytes(),
 		},
 	}
@@ -425,11 +425,11 @@ func orderBy(repos []*service.Repository, order config.OrderBy) []*service.Repos
 		})
 	case config.LastCommitAsc:
 		sort.Slice(repos, func(i, j int) bool {
-			return repos[i].LastCommit.Committer.When.Before(repos[j].LastCommit.Committer.When)
+			return repos[i].LastCommit.Commit().Committer.When.Before(repos[j].LastCommit.Commit().Committer.When)
 		})
 	case config.LastCommitDesc:
 		sort.Slice(repos, func(i, j int) bool {
-			return repos[i].LastCommit.Committer.When.After(repos[j].LastCommit.Committer.When)
+			return repos[i].LastCommit.Commit().Committer.When.After(repos[j].LastCommit.Commit().Committer.When)
 		})
 	}
 
diff --git a/pkg/service/git.go b/pkg/service/git.go
index 773d335..8642b5b 100644
--- a/pkg/service/git.go
+++ b/pkg/service/git.go
@@ -18,7 +18,7 @@ type (
 		Name        string
 		Description string
 		Public      bool
-		LastCommit  *object.Commit
+		LastCommit  *git.CommitReference
 		Ref         string
 	}
 
@@ -81,7 +81,7 @@ func (g *GitService) ListRepositories() ([]*Repository, error) {
 	return repos, nil
 }
 
-func (g *GitService) ListCommits(name, ref, from string, count int) ([]*object.Commit, *object.Commit, error) {
+func (g *GitService) ListCommits(name, ref, from string, count int) ([]*git.CommitReference, *object.Commit, error) {
 	r := g.configRepo.GetByName(name)
 	if r == nil {
 		return nil, nil, ErrRepositoryNotFound
@@ -99,7 +99,7 @@ func (g *GitService) ListCommits(name, ref, from string, count int) ([]*object.C
 	return repo.Commits(count, from)
 }
 
-func (g *GitService) LastCommit(name, ref string) (*object.Commit, error) {
+func (g *GitService) LastCommit(name, ref string) (*git.CommitReference, error) {
 	r := g.configRepo.GetByName(name)
 	if r == nil {
 		return nil, ErrRepositoryNotFound
diff --git a/pkg/u/list.go b/pkg/u/list.go
index 835ecd2..1cffbd5 100644
--- a/pkg/u/list.go
+++ b/pkg/u/list.go
@@ -12,6 +12,14 @@ func Filter[T any](v []T, f func(T) bool) []T {
 	return result
 }
 
+func Map[T any, V any](a []T, f func(T) V) []V {
+	result := make([]V, len(a))
+	for i, v := range a {
+		result[i] = f(v)
+	}
+	return result
+}
+
 func First[T any](v []T) (T, bool) {
 	if len(v) == 0 {
 		var zero T