vimagination.zapto.org/memfs

memfs

-- import "vimagination.zapto.org/memfs"

Package memfs contains both ReadOnly and ReadWrite implementations of an in-memory FileSystem, supporting all of the FS interfaces and more.

Highlights

• Full in-memory file system implementation.
• Implements fs.FS, fs.ReadDirFS, fs.ReadDirFile, fs.ReadFileFS, fs.StatFS, and fs.SubFS.
• Supports symlinks and hardlinks.
• Handles metadata operations and permissions.
• Can convert a read-write FS into a read-only one to remove locking and related overhead.

Usage

package main

import (
	"fmt"
	"io"

	"vimagination.zapto.org/memfs"
)

func main() {
	fs := memfs.New()

	fs.Mkdir("example", 0700)

	file, _ := fs.Create("example/file.txt")
	io.WriteString(file, "Hello, World!")
	file.Close()

	contents, _ := fs.ReadFile("example/file.txt")

	fmt.Printf("read: %q", contents)

	// Output:
	// read: "Hello, World!"
}

Documentation

Full API docs can be found at:

https://pkg.go.dev/vimagination.zapto.org/memfs