go-tarfs

Read a tar file contents using go1.16 io/fs abstraction

Usage

⚠️ go-tarfs needs go>=1.17

Install:

go get github.com/nlepage/go-tarfs

Use:

package main

import (
    "os"

    tarfs "github.com/nlepage/go-tarfs"
)

func main() {
    tf, err := os.Open("path/to/archive.tar")
    if err != nil {
        panic(err)
    }
    defer tf.Close()

    tfs, err := tarfs.New(tf)
    if err != nil {
        panic(err)
    }

    f, err := tfs.Open("path/to/some/file")
    if err != nil {
        panic(err)
    }
    defer f.Close() // frees the associated reader

    // use f...
}

More information at pkg.go.dev/github.com/nlepage/go-tarfs

Long living `fs.FS`

The io.Reader given to tarfs.New must stay opened while using the returned fs.FS (this is true only if the io.Reader implements io.ReaderAt).