Function SafeIntFromFile

pkg/util/util.go:38–52

Reads a supplied filepath and converts the contents to an integer. Returns -1 if there were file permissions or existence errors or if the contents could not be successfully converted to an integer. In any error, a warning message is printed to STDERR and -1 is returned.

(ctx context.Context, path string)

// could not be successfully converted to an integer. In any error, a warning
// message is printed to STDERR and -1 is returned.
func SafeIntFromFile(ctx context.Context, path string) int {
	msg := "failed to read int from file: %s\n"
	buf, err := os.ReadFile(path)
	if err != nil {
		log.Warn(ctx, msg, err)
		return -1
	}
	contents := strings.TrimSpace(string(buf))
	res, err := strconv.Atoi(contents)
	if err != nil {
		log.Warn(ctx, msg, err)
		return -1
	}
	return res
}

// ConcatStrings concatenate strings in a larger one. This function
// addresses a very specific ghw use case. For a more general approach,