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// Copyright © 2014 Steve Francia <spf@spf13.com>.
//
// Licensed under the Simple Public 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://opensource.org/licenses/Simple-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 source
import (
"bytes"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/spf13/hugo/helpers"
jww "github.com/spf13/jwalterweatherman"
)
type Input interface {
Files() []*File
}
type Filesystem struct {
files []*File
Base string
AvoidPaths []string
}
func (f *Filesystem) FilesByExts(exts ...string) []*File {
var newFiles []*File
if len(exts) == 0 {
return f.Files()
}
for _, x := range f.Files() {
for _, e := range exts {
if x.Ext() == strings.TrimPrefix(e, ".") {
newFiles = append(newFiles, x)
}
}
}
return newFiles
}
func (f *Filesystem) Files() []*File {
if len(f.files) < 1 {
f.captureFiles()
}
return f.files
}
func (f *Filesystem) add(name string, reader io.Reader) (err error) {
var file *File
//if f.Base == "" {
//file = NewFileWithContents(name, reader)
//} else {
file, err = NewFileFromAbs(f.Base, name, reader)
//}
if err == nil {
f.files = append(f.files, file)
}
return err
}
func (f *Filesystem) getRelativePath(name string) (final string, err error) {
return helpers.GetRelativePath(name, f.Base)
}
func (f *Filesystem) captureFiles() {
walker := func(filePath string, fi os.FileInfo, err error) error {
if err != nil {
return nil
}
if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
link, err := filepath.EvalSymlinks(filePath)
if err != nil {
jww.ERROR.Printf("Cannot read symbolic link '%s', error was: %s", filePath, err)
return nil
}
linkfi, err := os.Stat(link)
if err != nil {
jww.ERROR.Printf("Cannot stat '%s', error was: %s", link, err)
return nil
}
if !linkfi.Mode().IsRegular() {
jww.ERROR.Printf("Symbolic links for directories not supported, skipping '%s'", filePath)
}
return nil
}
if fi.IsDir() {
if f.avoid(filePath) || isNonProcessablePath(filePath) {
return filepath.SkipDir
}
return nil
}
if isNonProcessablePath(filePath) {
return nil
}
data, err := ioutil.ReadFile(filePath)
if err != nil {
return err
}
f.add(filePath, bytes.NewBuffer(data))
return nil
}
filepath.Walk(f.Base, walker)
}
func (f *Filesystem) avoid(filePath string) bool {
for _, avoid := range f.AvoidPaths {
if avoid == filePath {
return true
}
}
return false
}
func isNonProcessablePath(filePath string) bool {
base := filepath.Base(filePath)
if base[0] == '.' {
return true
}
if base[0] == '#' {
return true
}
if base[len(base)-1] == '~' {
return true
}
return false
}
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