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# Regression test for golang.org/issue/34634: permissions for the go.sum and
# go.mod files should be preserved when overwriting them.

env GO111MODULE=on
[short] skip

# Skip platforms that do not have Unix-style file permissions.
[GOOS:windows] skip
[GOOS:plan9] skip

chmod 0640 go.mod
chmod 0604 go.sum
go mod edit -module=golang.org/issue/34634

go get
cmp go.mod go.mod.want
cmp go.sum go.sum.want

go run .
stdout 'go.mod: 0640'
stdout 'go.sum: 0604'

-- read_perm.go --
package main

import (
	"fmt"
	"os"
	_ "rsc.io/sampler"
)

func main() {
	for _, name := range []string{"go.mod", "go.sum"} {
		fi, err := os.Stat(name)
		if err != nil {
			fmt.Fprintf(os.Stderr, "%s: %v\n", err)
			continue
		}
		fmt.Printf("%s: 0%o\n", name, fi.Mode().Perm())
	}
}
-- go.mod --
module TODO

go 1.14
-- go.sum --
-- go.mod.want --
module golang.org/issue/34634

go 1.14

require rsc.io/sampler v1.99.99
-- go.sum.want --
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c h1:pvCbr/wm8HzDD3fVywevekufpn6tCGPY3spdHeZJEsw=
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
rsc.io/sampler v1.99.99 h1:iMG9lbEG/8MdeR4lgL+Q8IcwbLNw7ijW7fTiK8Miqts=
rsc.io/sampler v1.99.99/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=