ab35df454d
Removed pre-go1.17 build-tags with go fix;
go mod init
go fix -mod=readonly ./...
rm go.mod
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
//go:build linux || freebsd || darwin
|
|
|
|
package directory // import "github.com/docker/docker/pkg/directory"
|
|
|
|
import (
|
|
"context"
|
|
"os"
|
|
"path/filepath"
|
|
"syscall"
|
|
)
|
|
|
|
// calcSize walks a directory tree and returns its total size in bytes.
|
|
func calcSize(ctx context.Context, dir string) (int64, error) {
|
|
var size int64
|
|
data := make(map[uint64]struct{})
|
|
err := filepath.Walk(dir, func(d string, fileInfo os.FileInfo, err error) error {
|
|
if err != nil {
|
|
// if dir/x disappeared while walking, Size() ignores dir/x.
|
|
// if dir does not exist, Size() returns the error.
|
|
if d != dir && os.IsNotExist(err) {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
select {
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
default:
|
|
}
|
|
|
|
// Ignore directory sizes
|
|
if fileInfo == nil {
|
|
return nil
|
|
}
|
|
|
|
s := fileInfo.Size()
|
|
if fileInfo.IsDir() || s == 0 {
|
|
return nil
|
|
}
|
|
|
|
// Check inode to handle hard links correctly
|
|
inode := fileInfo.Sys().(*syscall.Stat_t).Ino
|
|
//nolint:unconvert // inode is not an uint64 on all platforms.
|
|
if _, exists := data[uint64(inode)]; exists {
|
|
return nil
|
|
}
|
|
|
|
data[uint64(inode)] = struct{}{} //nolint:unconvert // inode is not an uint64 on all platforms.
|
|
|
|
size += s
|
|
|
|
return nil
|
|
})
|
|
return size, err
|
|
}
|