seaweedfs/weed/filer2/filer_delete_entry.go

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package filer2
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
func (f *Filer) DeleteEntryMetaAndData(ctx context.Context, p FullPath, isRecursive bool, ignoreRecursiveError, shouldDeleteChunks bool) (err error) {
if p == "/" {
return nil
}
entry, findErr := f.FindEntry(ctx, p)
if findErr != nil {
return findErr
}
var chunks []*filer_pb.FileChunk
chunks = append(chunks, entry.Chunks...)
if entry.IsDirectory() {
// delete the folder children, not including the folder itself
var dirChunks []*filer_pb.FileChunk
dirChunks, err = f.doBatchDeleteFolderMetaAndData(ctx, entry, isRecursive, ignoreRecursiveError, shouldDeleteChunks)
if err != nil {
return fmt.Errorf("delete directory %s: %v", p, err)
}
chunks = append(chunks, dirChunks...)
f.cacheDelDirectory(string(p))
}
// delete the file or folder
err = f.doDeleteEntryMetaAndData(ctx, entry, shouldDeleteChunks)
if err != nil {
return fmt.Errorf("delete file %s: %v", p, err)
}
if shouldDeleteChunks {
go f.DeleteChunks(chunks)
}
return nil
}
func (f *Filer) doBatchDeleteFolderMetaAndData(ctx context.Context, entry *Entry, isRecursive bool, ignoreRecursiveError, shouldDeleteChunks bool) (chunks []*filer_pb.FileChunk, err error) {
lastFileName := ""
includeLastFile := false
for {
entries, err := f.ListDirectoryEntries(ctx, entry.FullPath, lastFileName, includeLastFile, PaginationSize)
if err != nil {
glog.Errorf("list folder %s: %v", entry.FullPath, err)
return nil, fmt.Errorf("list folder %s: %v", entry.FullPath, err)
}
if lastFileName == "" && !isRecursive && len(entries) > 0 {
// only for first iteration in the loop
return nil, fmt.Errorf("fail to delete non-empty folder: %s", entry.FullPath)
}
for _, sub := range entries {
lastFileName = sub.Name()
var dirChunks []*filer_pb.FileChunk
if sub.IsDirectory() {
dirChunks, err = f.doBatchDeleteFolderMetaAndData(ctx, sub, isRecursive, ignoreRecursiveError, shouldDeleteChunks)
chunks = append(chunks, dirChunks...)
} else {
chunks = append(chunks, sub.Chunks...)
}
if err != nil && !ignoreRecursiveError {
return nil, err
}
}
if len(entries) < PaginationSize {
break
}
}
f.cacheDelDirectory(string(entry.FullPath))
glog.V(3).Infof("deleting directory %v delete %d chunks: %v", entry.FullPath, len(chunks), shouldDeleteChunks)
if storeDeletionErr := f.store.DeleteFolderChildren(ctx, entry.FullPath); storeDeletionErr != nil {
return nil, fmt.Errorf("filer store delete: %v", storeDeletionErr)
}
f.NotifyUpdateEvent(entry, nil, shouldDeleteChunks)
return chunks, nil
}
func (f *Filer) doDeleteEntryMetaAndData(ctx context.Context, entry *Entry, shouldDeleteChunks bool) (err error) {
glog.V(3).Infof("deleting entry %v, delete chunks: %v", entry.FullPath, shouldDeleteChunks)
if storeDeletionErr := f.store.DeleteEntry(ctx, entry.FullPath); storeDeletionErr != nil {
return fmt.Errorf("filer store delete: %v", storeDeletionErr)
}
f.NotifyUpdateEvent(entry, nil, shouldDeleteChunks)
return nil
}