Accessing files away from service directory

[vadimpiven]

I've found one rather strange thing - when trying to open a file from outside of the directory served,... it works! Even after packr2 build and mv to another directory program tries to find and open files by related path. The same time, http.Dir just throws an error at the same place. So I've considered such a behaviour as a bug (correct me if I'm wrong). Example program:

package main

import (
	"fmt"
	"github.com/gobuffalo/packr/v2"
	"net/http"
)

func main() {
	b := packr.New("static", "static")
	f1, err := b.Open("../main.go")
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(f1)
	}

	d := http.Dir("static")
	f2, err := d.Open("../main.go")
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(f2)
	}
}

and it's output:

package main

import (
	"fmt"
	"github.com/gobuffalo/packr/v2"
	"net/http"
)

func main() {
	b := packr.New("static", "static")
	f1, err := b.Open("../main.go")
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(f1)
	}

	d := http.Dir("static")
	f2, err := d.Open("../main.go")
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(f2)
	}
}

open static/main.go: no such file or directory

[matthijskooijman]

The output you're showing is not entirely clear. I see just a single print, rather than two? It does not really show the problem clearly.