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zip: Add fs.FS support for Go 1.16+
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Change writer api to match stdlib as well.
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klauspost committed Sep 1, 2021
1 parent 290f4cf commit f81876a
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Showing 11 changed files with 3,213 additions and 405 deletions.
50 changes: 50 additions & 0 deletions zip/internal/obscuretestdata/obscuretestdata.go
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package obscuretestdata contains functionality used by tests to more easily
// work with testdata that must be obscured primarily due to
// golang.org/issue/34986.
package obscuretestdata

import (
"encoding/base64"
"io"
"os"
)

// DecodeToTempFile decodes the named file to a temporary location.
// If successful, it returns the path of the decoded file.
// The caller is responsible for ensuring that the temporary file is removed.
func DecodeToTempFile(name string) (path string, err error) {
f, err := os.Open(name)
if err != nil {
return "", err
}
defer f.Close()

tmp, err := os.CreateTemp("", "obscuretestdata-decoded-")
if err != nil {
return "", err
}
if _, err := io.Copy(tmp, base64.NewDecoder(base64.StdEncoding, f)); err != nil {
tmp.Close()
os.Remove(tmp.Name())
return "", err
}
if err := tmp.Close(); err != nil {
os.Remove(tmp.Name())
return "", err
}
return tmp.Name(), nil
}

// ReadFile reads the named file and returns its decoded contents.
func ReadFile(name string) ([]byte, error) {
f, err := os.Open(name)
if err != nil {
return nil, err
}
defer f.Close()
return io.ReadAll(base64.NewDecoder(base64.StdEncoding, f))
}
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