mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-18 05:55:06 -05:00
77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package hugofs
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"regexp"
|
|
"runtime"
|
|
|
|
"github.com/gohugoio/hugo/common/types"
|
|
|
|
"github.com/spf13/afero"
|
|
)
|
|
|
|
var (
|
|
// Make sure we don't accidentally use this in the real Hugo.
|
|
_ types.DevMarker = (*stacktracerFs)(nil)
|
|
_ FilesystemUnwrapper = (*stacktracerFs)(nil)
|
|
)
|
|
|
|
// NewStacktracerFs wraps the given fs printing stack traces for file creates
|
|
// matching the given regexp pattern.
|
|
func NewStacktracerFs(fs afero.Fs, pattern string) afero.Fs {
|
|
return &stacktracerFs{Fs: fs, re: regexp.MustCompile(pattern)}
|
|
}
|
|
|
|
// stacktracerFs can be used in hard-to-debug development situations where
|
|
// you get some input you don't understand where comes from.
|
|
type stacktracerFs struct {
|
|
afero.Fs
|
|
|
|
// Will print stacktrace for every file creates matching this pattern.
|
|
re *regexp.Regexp
|
|
}
|
|
|
|
func (fs *stacktracerFs) DevOnly() {
|
|
}
|
|
|
|
func (fs *stacktracerFs) UnwrapFilesystem() afero.Fs {
|
|
return fs.Fs
|
|
}
|
|
|
|
func (fs *stacktracerFs) onCreate(filename string) {
|
|
if fs.re.MatchString(filename) {
|
|
trace := make([]byte, 1500)
|
|
runtime.Stack(trace, true)
|
|
fmt.Printf("\n===========\n%q:\n%s\n", filename, trace)
|
|
}
|
|
}
|
|
|
|
func (fs *stacktracerFs) Create(name string) (afero.File, error) {
|
|
f, err := fs.Fs.Create(name)
|
|
if err == nil {
|
|
fs.onCreate(name)
|
|
}
|
|
return f, err
|
|
}
|
|
|
|
func (fs *stacktracerFs) OpenFile(name string, flag int, perm os.FileMode) (afero.File, error) {
|
|
f, err := fs.Fs.OpenFile(name, flag, perm)
|
|
if err == nil && isWrite(flag) {
|
|
fs.onCreate(name)
|
|
}
|
|
return f, err
|
|
}
|