mirror of
https://github.com/fatedier/frp.git
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58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// Copyright 2016 fatedier, fatedier@gmail.com
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package assets
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import (
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"io/fs"
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"net/http"
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)
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var (
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// read-only filesystem created by "embed" for embedded files
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content fs.FS
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FileSystem http.FileSystem
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// if prefix is not empty, we get file content from disk
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prefixPath string
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)
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type emptyFS struct{}
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func (emptyFS) Open(name string) (http.File, error) {
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return nil, &fs.PathError{Op: "open", Path: name, Err: fs.ErrNotExist}
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}
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// if path is empty, load assets in memory
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// or set FileSystem using disk files
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func Load(path string) {
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prefixPath = path
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switch {
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case prefixPath != "":
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FileSystem = http.Dir(prefixPath)
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case content != nil:
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FileSystem = http.FS(content)
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default:
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FileSystem = emptyFS{}
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}
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}
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func Register(fileSystem fs.FS) {
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subFs, err := fs.Sub(fileSystem, "dist")
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if err == nil {
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content = subFs
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}
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}
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