go-judge/worker/file.go
criyle c5575ffe2b
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refactor(envexec): support file stream in & out directly
2025-05-29 04:40:53 -04:00

87 lines
2.1 KiB
Go

package worker
import (
"bytes"
"fmt"
"github.com/criyle/go-judge/envexec"
"github.com/criyle/go-judge/filestore"
)
// CmdFile defines file used in the cmd
type CmdFile interface {
// EnvFile prepares file for envexec file
EnvFile(fs filestore.FileStore) (envexec.File, error)
// Stringer to print debug information
String() string
}
var (
_ CmdFile = &LocalFile{}
_ CmdFile = &MemoryFile{}
_ CmdFile = &CachedFile{}
_ CmdFile = &Collector{}
)
// LocalFile defines file stores on the local file system
type LocalFile struct {
Src string
}
// EnvFile prepares file for envexec file
func (f *LocalFile) EnvFile(fs filestore.FileStore) (envexec.File, error) {
return envexec.NewFileInput(f.Src), nil
}
func (f *LocalFile) String() string {
return fmt.Sprintf("local:%s", f.Src)
}
// MemoryFile defines file stores in the memory
type MemoryFile struct {
Content []byte
}
// EnvFile prepares file for envexec file
func (f *MemoryFile) EnvFile(fs filestore.FileStore) (envexec.File, error) {
return envexec.NewFileReader(bytes.NewReader(f.Content)), nil
}
func (f *MemoryFile) String() string {
return fmt.Sprintf("memory:(len:%d)", len(f.Content))
}
// CachedFile defines file cached in the file store
type CachedFile struct {
FileID string
}
// EnvFile prepares file for envexec file
func (f *CachedFile) EnvFile(fs filestore.FileStore) (envexec.File, error) {
_, fd := fs.Get(f.FileID)
if fd == nil {
return nil, fmt.Errorf("file does not exists with id: %q", f.FileID)
}
return fd, nil
}
func (f *CachedFile) String() string {
return fmt.Sprintf("cached:(fileId:%s)", f.FileID)
}
// Collector defines on the output (stdout / stderr) to be collected over pipe
type Collector struct {
Name string // pseudo name generated into copyOut
Max envexec.Size // max size to be collected
Pipe bool
}
// EnvFile prepares file for envexec file
func (f *Collector) EnvFile(fs filestore.FileStore) (envexec.File, error) {
return envexec.NewFileCollector(f.Name, f.Max, f.Pipe), nil
}
func (f *Collector) String() string {
return fmt.Sprintf("collector:(name:%s,max:%d,pipe:%v)", f.Name, f.Max, f.Pipe)
}