| // Copyright (c) HashiCorp, Inc. |
| // SPDX-License-Identifier: MPL-2.0 |
| |
| package statefile |
| |
| // looksLikeVersion0 sniffs for the signature indicating a version 0 state |
| // file. |
| // |
| // Version 0 was the number retroactively assigned to Terraform's initial |
| // (unversioned) binary state file format, which was later superseded by the |
| // version 1 format in JSON. |
| // |
| // Version 0 is no longer supported, so this is used only to detect it and |
| // return a nice error to the user. |
| func looksLikeVersion0(src []byte) bool { |
| // Version 0 files begin with the magic prefix "tfstate". |
| const magic = "tfstate" |
| if len(src) < len(magic) { |
| // Not even long enough to have the magic prefix |
| return false |
| } |
| if string(src[0:len(magic)]) == magic { |
| return true |
| } |
| return false |
| } |
