Fix -ignore-fork filtering for GitLab, Bitbucket, and Forgejo

The ignoreFork parameter was accepted but never used by these three
services. Add fork detection checks matching the existing GitHub
pattern:

- GitLab: skip repos where ForkedFromProject is non-nil
- Bitbucket: skip repos where Parent is non-nil
- Forgejo: skip repos where Fork is true, threading ignoreFork
  into paginateForgejoRepositories

Author: Rachel Dowavic

bitbucket.go

@@ -34,6 +34,9 @@ func getBitbucketRepositories(
 		}
 
 		for _, repo := range resp.Items {
+			if repo.Parent != nil && ignoreFork {
+				continue
+			}
 			namespace := strings.Split(repo.Full_name, "/")[0]
 
 			httpsURL, sshURL := extractBitbucketCloneURLs(repo.Links)

forgejo.go

@@ -33,7 +33,7 @@ func getForgejoRepositories(
 				ListOptions:     forgejo.ListOptions{Page: page},
 				StarredByUserID: user.ID,
 			})
-		})
+		}, ignoreFork)
 		if err != nil {
 			return nil, fmt.Errorf("fetching starred repositories from %s: %v", service, err)
 		}
@@ -44,7 +44,7 @@ func getForgejoRepositories(
 			return forgejoClient.ListMyRepos(forgejo.ListReposOptions{
 				ListOptions: forgejo.ListOptions{Page: page},
 			})
-		})
+		}, ignoreFork)
 		if err != nil {
 			return nil, fmt.Errorf("fetching user repositories from %s: %v", service, err)
 		}
@@ -55,7 +55,7 @@ func getForgejoRepositories(
 	}
 }
 
-func paginateForgejoRepositories(fetch func(page int) ([]*forgejo.Repository, *forgejo.Response, error)) ([]*Repository, error) {
+func paginateForgejoRepositories(fetch func(page int) ([]*forgejo.Repository, *forgejo.Response, error), ignoreFork bool) ([]*Repository, error) {
 	var repositories []*Repository
 	page := 1
 
@@ -66,6 +66,9 @@ func paginateForgejoRepositories(fetch func(page int) ([]*forgejo.Repository, *f
 		}
 
 		for _, repo := range results {
+			if repo.Fork && ignoreFork {
+				continue
+			}
 			repositories = append(repositories, &Repository{
 				CloneURL:  repo.CloneURL,
 				Name:      repo.Name,

gitlab.go

@@ -58,6 +58,9 @@ func getGitlabRepositories(
 			return nil, err
 		}
 		for _, repo := range repos {
+			if repo.ForkedFromProject != nil && ignoreFork {
+				continue
+			}
 			namespace := strings.Split(repo.PathWithNamespace, "/")[0]
 			cloneURL := getCloneURL(repo.WebURL, repo.SSHURLToRepo)
 			repositories = append(repositories, &Repository{