From fe0a202dd90005c1e4295ded07142d5a59bdb579 Mon Sep 17 00:00:00 2001
From: Erik Unger <erik@erikunger.com>
Date: Thu, 9 Nov 2023 23:41:44 +0100
Subject: [PATCH] sftpfs and ftpsfs only implement ListDirInfo

---
 ftpfs/ftpfs.go   | 37 ++++++++++---------------------------
 sftpfs/sftpfs.go | 37 ++++++++++---------------------------
 2 files changed, 20 insertions(+), 54 deletions(-)

diff --git a/ftpfs/ftpfs.go b/ftpfs/ftpfs.go
index 108adb8..cd1444e 100644
--- a/ftpfs/ftpfs.go
+++ b/ftpfs/ftpfs.go
@@ -245,6 +245,16 @@ func (f *FTPFileSystem) ListDirInfo(ctx context.Context, dirPath string, callbac
 		return err
 	}
 	for _, entry := range entries {
+		if ctx.Err() != nil {
+			return ctx.Err()
+		}
+		match, err := fsimpl.MatchAnyPattern(entry.Name, patterns)
+		if err != nil {
+			return err
+		}
+		if !match {
+			continue
+		}
 		err = callback(entryToFileInfo(entry, f.JoinCleanFile(dirPath, entry.Name)))
 		if err != nil {
 			return err
@@ -253,33 +263,6 @@ func (f *FTPFileSystem) ListDirInfo(ctx context.Context, dirPath string, callbac
 	return nil
 }
 
-func (f *FTPFileSystem) ListDirInfoRecursive(ctx context.Context, dirPath string, callback func(*fs.FileInfo) error, patterns []string) error {
-	return fmt.Errorf("FTPFileSystem.ListDirInfoRecursive: %w", errors.ErrUnsupported)
-}
-
-func (f *FTPFileSystem) ListDirMax(ctx context.Context, dirPath string, max int, patterns []string) (files []fs.File, err error) {
-	if max == 0 {
-		return nil, nil
-	}
-	conn, dirPath, release, err := f.getConn(dirPath)
-	if err != nil {
-		return nil, err
-	}
-	defer release()
-
-	names, err := conn.NameList(dirPath)
-	if err != nil {
-		return nil, err
-	}
-	for _, name := range names {
-		files = append(files, f.JoinCleanFile(dirPath, name))
-		if max > 0 && len(files) == max {
-			break
-		}
-	}
-	return files, nil
-}
-
 func (f *FTPFileSystem) MatchAnyPattern(name string, patterns []string) (bool, error) {
 	return fsimpl.MatchAnyPattern(name, patterns)
 }
diff --git a/sftpfs/sftpfs.go b/sftpfs/sftpfs.go
index 2b8c0d6..480cd25 100644
--- a/sftpfs/sftpfs.go
+++ b/sftpfs/sftpfs.go
@@ -221,6 +221,16 @@ func (f *SFTPFileSystem) ListDirInfo(ctx context.Context, dirPath string, callba
 		return err
 	}
 	for _, info := range infos {
+		if ctx.Err() != nil {
+			return ctx.Err()
+		}
+		match, err := fsimpl.MatchAnyPattern(info.Name(), patterns)
+		if err != nil {
+			return err
+		}
+		if !match {
+			continue
+		}
 		err = callback(fs.NewFileInfo(f.JoinCleanFile(dirPath, info.Name()), info, false))
 		if err != nil {
 			return err
@@ -229,33 +239,6 @@ func (f *SFTPFileSystem) ListDirInfo(ctx context.Context, dirPath string, callba
 	return nil
 }
 
-func (f *SFTPFileSystem) ListDirInfoRecursive(ctx context.Context, dirPath string, callback func(*fs.FileInfo) error, patterns []string) error {
-	return fmt.Errorf("SFTPFileSystem.ListDirInfoRecursive: %w", errors.ErrUnsupported)
-}
-
-func (f *SFTPFileSystem) ListDirMax(ctx context.Context, dirPath string, max int, patterns []string) (files []fs.File, err error) {
-	if max == 0 {
-		return nil, nil
-	}
-	client, dirPath, release, err := f.getClient(dirPath)
-	if err != nil {
-		return nil, err
-	}
-	defer release()
-
-	infos, err := client.ReadDir(dirPath)
-	if err != nil {
-		return nil, err
-	}
-	for _, info := range infos {
-		files = append(files, f.JoinCleanFile(dirPath, info.Name()))
-		if max > 0 && len(files) == max {
-			break
-		}
-	}
-	return files, nil
-}
-
 type sftpFile struct {
 	*sftp.File
 	release func() error