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filewalker.go
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filewalker.go
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package common
import (
"io/fs"
"os"
"path/filepath"
)
type Filewalker struct {
Path string
Filemask string
Recursive bool
IgnoreError bool
fileFunc func(path string, f os.FileInfo) error
}
func (fw *Filewalker) walkfunc(path string, f os.FileInfo, err error) error {
if err != nil {
if fw.IgnoreError {
Warn("cannot access: %s", path)
return filepath.SkipDir
}
return err
}
if f.IsDir() {
if path == fw.Path || fw.Recursive {
return fw.fileFunc(path, f)
} else {
return fs.SkipDir
}
} else {
b := fw.Filemask == ""
if !b {
b, err = EqualWildcards(filepath.Base(path), fw.Filemask)
if Error(err) {
return err
}
}
if !b {
return nil
}
return fw.fileFunc(path, f)
}
}
func (fw *Filewalker) Run() error {
if !FileExists(fw.Path) || !IsDirectory(fw.Path) {
return &ErrFileNotFound{
FileName: fw.Path,
}
}
return filepath.Walk(fw.Path, fw.walkfunc)
}
func NewFilewalker(filemask string, recursive bool, ignoreError bool, walkFunc func(path string, fi os.FileInfo) error) (*Filewalker, error) {
path := ""
filemask = CleanPath(filemask)
if ContainsWildcard(filemask) || !FileExists(filemask) {
path = filepath.Dir(filemask)
filemask = filepath.Base(filemask)
} else {
if IsDirectory(filemask) {
path = filemask
filemask = ""
} else {
path = filepath.Dir(filemask)
filemask = filepath.Base(filemask)
}
}
return &Filewalker{
Path: path,
Filemask: filemask,
Recursive: recursive,
IgnoreError: ignoreError,
fileFunc: walkFunc,
}, nil
}