memfs: A simple in-memory io/fs.FS filesystem
memfs is an in-memory implementation of Go's io/fs.FS interface. The goal is to make it easy and quick to build an fs.FS filesystem when you don't have any complex requirements.
Documentation: https://pkg.go.dev/github.com/psanford/memfs
io/fs docs: https://tip.golang.org/pkg/io/fs/
Usage
package main
import (
"fmt"
"io/fs"
"github.com/psanford/memfs"
)
func main() {
rootFS := memfs.New()
err := rootFS.MkdirAll("dir1/dir2", 0777)
if err != nil {
panic(err)
}
err = rootFS.WriteFile("dir1/dir2/f1.txt", []byte("incinerating-unsubstantial"), 0755)
if err != nil {
panic(err)
}
err = fs.WalkDir(rootFS, ".", func(path string, d fs.DirEntry, err error) error {
fmt.Println(path)
return nil
})
if err != nil {
panic(err)
}
content, err := fs.ReadFile(rootFS, "dir1/dir2/f1.txt")
if err != nil {
panic(err)
}
fmt.Printf("%s\n", content)
}
