From 325a0063698640952e23e41f834511495faea93f Mon Sep 17 00:00:00 2001
From: Rod Vagg <rod@vagg.org>
Date: Wed, 12 May 2021 21:18:43 +1000
Subject: [PATCH] Check codes are ascending with validation script (#212)

Ref: https://github.com/multiformats/multicodec/pull/210
---
 table.csv   | 2 +-
 validate.py | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/table.csv b/table.csv
index bbf0e0f..40c0f4e 100644
--- a/table.csv
+++ b/table.csv
@@ -79,7 +79,6 @@ swarm-ns,                       namespace,      0xe4,           draft,     Swarm
 ipns-ns,                        namespace,      0xe5,           draft,     IPNS path
 zeronet,                        namespace,      0xe6,           draft,     ZeroNet site address
 secp256k1-pub,                  key,            0xe7,           draft,     Secp256k1 public key
-secp256k1-priv,                 key,            0x1301,         draft,     Secp256k1 private key
 bls12_381-g1-pub,               key,            0xea,           draft,     BLS12-381 public key in the G1 field
 bls12_381-g2-pub,               key,            0xeb,           draft,     BLS12-381 public key in the G2 field
 x25519-pub,                     key,            0xec,           draft,     Curve25519 public key
@@ -127,6 +126,7 @@ p521-pub,                       key,            0x1202,         draft,     P-521
 ed448-pub,                      key,            0x1203,         draft,     Ed448 public Key
 x448-pub,                       key,            0x1204,         draft,     X448 public Key
 ed25519-priv,                   key,            0x1300,         draft,     Ed25519 private key
+secp256k1-priv,                 key,            0x1301,         draft,     Secp256k1 private key
 kangarootwelve,                 multihash,      0x1d01,         draft,     KangarooTwelve is an extendable-output hash function based on Keccak-p
 sm3-256,                        multihash,      0x534d,         draft,
 blake2b-8,                      multihash,      0xb201,         draft,     Blake2b consists of 64 output lengths that give different hashes
diff --git a/validate.py b/validate.py
index 89d6229..bc29334 100755
--- a/validate.py
+++ b/validate.py
@@ -24,6 +24,7 @@ def check(fname='table.csv'):
         codes = {}
         names = {}
         headerOffsets = []
+        lastCode = -1
         for line, row in enumerate(tablereader):
             try:
                 # Check the padding of each column
@@ -69,6 +70,12 @@ def check(fname='table.csv'):
                 except Exception as e:
                     raise CheckError(f"failed to parse code '{code}' for '{name}': {e}")
 
+                # Check codes are ascending
+                ooo = code < lastCode
+                lastCode = code
+                if ooo:
+                    raise CheckError(f"code {code} is out of order, previous code was {lastCode}")
+
                 # Finally, check for duplicates
 
                 if name in names: