68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
package uiserver
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import (
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"bytes"
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"errors"
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"os"
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"time"
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)
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// bufferedFile implements http.File and allows us to modify a file from disk by
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// writing out the new version into a buffer and then serving file reads from
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// that.
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type bufferedFile struct {
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buf *bytes.Reader
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info os.FileInfo
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}
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func newBufferedFile(buf []byte, info os.FileInfo) *bufferedFile {
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return &bufferedFile{
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buf: bytes.NewReader(buf),
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info: info,
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}
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}
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func (t *bufferedFile) Read(p []byte) (n int, err error) {
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return t.buf.Read(p)
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}
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func (t *bufferedFile) Seek(offset int64, whence int) (int64, error) {
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return t.buf.Seek(offset, whence)
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}
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func (t *bufferedFile) Close() error {
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return nil
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}
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func (t *bufferedFile) Readdir(count int) ([]os.FileInfo, error) {
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return nil, errors.New("not a directory")
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}
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func (t *bufferedFile) Stat() (os.FileInfo, error) {
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return t, nil
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}
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func (t *bufferedFile) Name() string {
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return t.info.Name()
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}
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func (t *bufferedFile) Size() int64 {
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return int64(t.buf.Len())
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}
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func (t *bufferedFile) Mode() os.FileMode {
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return t.info.Mode()
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}
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func (t *bufferedFile) ModTime() time.Time {
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return t.info.ModTime()
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}
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func (t *bufferedFile) IsDir() bool {
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return false
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}
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func (t *bufferedFile) Sys() interface{} {
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return nil
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}
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