func oldRedirect(ctxt *fs.Context, w http.ResponseWriter, req *http.Request, p string) {
m := map[string]string{}
if key, ok := ctxt.CacheLoad("blog:oldRedirectMap", "blog/post", &m); !ok {
dir, err := ctxt.ReadDir("blog/post")
if err != nil {
panic(err)
}
for _, d := range dir {
meta, _, err := loadPost(ctxt, d.Name, req)
if err != nil {
// Should not happen: we just listed the directory.
panic(err)
}
m[meta.OldURL] = "/" + d.Name
}
ctxt.CacheStore(key, m)
}
if url, ok := m[p]; ok {
http.Redirect(w, req, url, http.StatusFound)
return
}
notfound(ctxt, w, req)
}
func readDir(c *fs.Context, root string) ([]proto.FileInfo, error) {
return c.ReadDir(root)
}