bbgo_origin/pkg/backtest/assets_dummy.go

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2022-05-19 02:49:26 +00:00
//go:build !web
// +build !web
package backtest
import (
"bytes"
"errors"
"net/http"
"os"
"time"
)
var assets = map[string][]byte{}
var FS = &fs{}
type fs struct{}
func (fs *fs) Open(name string) (http.File, error) {
if name == "/" {
return fs, nil
}
b, ok := assets[name]
if !ok {
return nil, os.ErrNotExist
}
return &file{name: name, size: len(b), Reader: bytes.NewReader(b)}, nil
}
func (fs *fs) Close() error { return nil }
func (fs *fs) Read(p []byte) (int, error) { return 0, nil }
func (fs *fs) Seek(offset int64, whence int) (int64, error) { return 0, nil }
func (fs *fs) Stat() (os.FileInfo, error) { return fs, nil }
func (fs *fs) Name() string { return "/" }
func (fs *fs) Size() int64 { return 0 }
func (fs *fs) Mode() os.FileMode { return 0755 }
func (fs *fs) ModTime() time.Time { return time.Time{} }
func (fs *fs) IsDir() bool { return true }
func (fs *fs) Sys() interface{} { return nil }
func (fs *fs) Readdir(count int) ([]os.FileInfo, error) {
files := []os.FileInfo{}
for name, data := range assets {
files = append(files, &file{name: name, size: len(data), Reader: bytes.NewReader(data)})
}
return files, nil
}
type file struct {
name string
size int
*bytes.Reader
}
func (f *file) Close() error { return nil }
func (f *file) Readdir(count int) ([]os.FileInfo, error) {
return nil, errors.New("readdir is not supported")
}
func (f *file) Stat() (os.FileInfo, error) { return f, nil }
func (f *file) Name() string { return f.name }
func (f *file) Size() int64 { return int64(f.size) }
func (f *file) Mode() os.FileMode { return 0644 }
func (f *file) ModTime() time.Time { return time.Time{} }
func (f *file) IsDir() bool { return false }
func (f *file) Sys() interface{} { return nil }