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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// File utilities.
// Author: bratseth
package util
import (
"bytes"
"encoding/json"
"errors"
"io"
"os"
"strings"
)
// Returns true if the given path exists
func PathExists(path string) bool {
_, err := os.Stat(path)
return !errors.Is(err, os.ErrNotExist)
}
// Returns true is the given path points to an existing directory
func IsDirectory(path string) bool {
info, err := os.Stat(path)
return !errors.Is(err, os.ErrNotExist) && info.IsDir()
}
// Returns the content of a reader as a string
func ReaderToString(reader io.Reader) string {
var buffer strings.Builder
io.Copy(&buffer, reader)
return buffer.String()
}
// Returns the content of a reader as a byte array
func ReaderToBytes(reader io.Reader) []byte {
var buffer bytes.Buffer
buffer.ReadFrom(reader)
return buffer.Bytes()
}
// Returns the contents of reader as indented JSON
func ReaderToJSON(reader io.Reader) string {
bodyBytes := ReaderToBytes(reader)
var prettyJSON bytes.Buffer
parseError := json.Indent(&prettyJSON, bodyBytes, "", " ")
if parseError != nil { // Not JSON: Print plainly
return string(bodyBytes)
}
return prettyJSON.String()
}
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