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fs.go
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fs.go
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package view
import (
"fmt"
"io/fs"
"path/filepath"
"github.com/kataras/iris/v12/context"
)
// walk recursively in "fileSystem" descends "root" path, calling "walkFn".
func walk(fileSystem fs.FS, root string, walkFn filepath.WalkFunc) error {
if root != "" && root != "/" && root != "." {
sub, err := fs.Sub(fileSystem, root)
if err != nil {
return err
}
fileSystem = sub
}
if root == "" {
root = "."
}
return fs.WalkDir(fileSystem, root, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return fmt.Errorf("walk: %s: %w", path, err)
}
info, err := d.Info()
if err != nil {
if err != filepath.SkipDir {
return fmt.Errorf("walk stat: %s: %w", path, err)
}
return nil
}
if info.IsDir() {
return nil
}
walkFnErr := walkFn(path, info, err)
if walkFnErr != nil {
return fmt.Errorf("walk: walkFn: %w", walkFnErr)
}
return nil
})
}
func asset(fileSystem fs.FS, name string) ([]byte, error) {
data, err := fs.ReadFile(fileSystem, name)
if err != nil {
return nil, fmt.Errorf("asset: read file: %w", err)
}
return data, nil
}
func getFS(fsOrDir interface{}) fs.FS {
return context.ResolveFS(fsOrDir)
}
func getRootDirName(fileSystem fs.FS) string {
rootDirFile, err := fileSystem.Open(".")
if err == nil {
rootDirStat, err := rootDirFile.Stat()
if err == nil {
return rootDirStat.Name()
}
}
return ""
}