mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-07 20:30:36 -05:00
102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
// Copyright 2024 The Hugo Authors. All rights reserved.
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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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// 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 hugofs
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import (
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"os"
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"github.com/gohugoio/hugo/common/hugio"
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"github.com/spf13/afero"
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)
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var (
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_ afero.Fs = (*hasBytesFs)(nil)
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_ FilesystemUnwrapper = (*hasBytesFs)(nil)
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)
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type hasBytesFs struct {
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afero.Fs
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shouldCheck func(name string) bool
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hasBytesCallback func(name string, match []byte)
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patterns [][]byte
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}
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func NewHasBytesReceiver(delegate afero.Fs, shouldCheck func(name string) bool, hasBytesCallback func(name string, match []byte), patterns ...[]byte) afero.Fs {
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return &hasBytesFs{Fs: delegate, shouldCheck: shouldCheck, hasBytesCallback: hasBytesCallback, patterns: patterns}
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}
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func (fs *hasBytesFs) UnwrapFilesystem() afero.Fs {
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return fs.Fs
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}
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func (fs *hasBytesFs) Create(name string) (afero.File, error) {
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f, err := fs.Fs.Create(name)
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if err == nil {
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f = fs.wrapFile(f)
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}
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return f, err
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}
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func (fs *hasBytesFs) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
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f, err := fs.Fs.OpenFile(name, flag, perm)
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if err == nil && isWrite(flag) {
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f = fs.wrapFile(f)
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}
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return f, err
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}
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func (fs *hasBytesFs) wrapFile(f afero.File) afero.File {
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if !fs.shouldCheck(f.Name()) {
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return f
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}
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patterns := make([]*hugio.HasBytesPattern, len(fs.patterns))
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for i, p := range fs.patterns {
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patterns[i] = &hugio.HasBytesPattern{Pattern: p}
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}
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return &hasBytesFile{
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File: f,
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hbw: &hugio.HasBytesWriter{
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Patterns: patterns,
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},
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hasBytesCallback: fs.hasBytesCallback,
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}
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}
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func (fs *hasBytesFs) Name() string {
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return "hasBytesFs"
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}
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type hasBytesFile struct {
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hasBytesCallback func(name string, match []byte)
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hbw *hugio.HasBytesWriter
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afero.File
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}
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func (h *hasBytesFile) Write(p []byte) (n int, err error) {
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n, err = h.File.Write(p)
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if err != nil {
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return
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}
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return h.hbw.Write(p)
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}
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func (h *hasBytesFile) Close() error {
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for _, p := range h.hbw.Patterns {
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if p.Match {
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h.hasBytesCallback(h.Name(), p.Pattern)
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}
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}
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return h.File.Close()
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}
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