From 7ff876b92b590fd9559472935f4adce1d3d5efb7 Mon Sep 17 00:00:00 2001
From: Peter Kolloch <info@eigenvalue.net>
Date: Tue, 28 Nov 2023 15:58:04 +0100
Subject: [PATCH] Add deprecation notice for old nix hash conversion
 subcommands.

(But not yet nix-hash since `nix hash` is still hidden behind a feature flag.)

https://github.com/NixOS/nix/issues/8876
---
 src/nix/hash.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/nix/hash.cc b/src/nix/hash.cc
index f9c7592a3..2c9deb0d5 100644
--- a/src/nix/hash.cc
+++ b/src/nix/hash.cc
@@ -127,6 +127,7 @@ struct CmdToBase : Command
 
     void run() override
     {
+        warn("The old format conversion sub commands of `nix hash` where deprecated in favor of `nix hash convert`.");
         for (auto s : args)
             logger->cout(Hash::parseAny(s, ht).to_string(hashFormat, hashFormat == HashFormat::SRI));
     }
@@ -208,6 +209,9 @@ static auto rCmdHash = registerCommand<CmdHash>("hash");
 /* Legacy nix-hash command. */
 static int compatNixHash(int argc, char * * argv)
 {
+    // Wait until `nix hash convert` is not hidden behind experimental flags anymore.
+    // warn("`nix-hash` has been deprecated in favor of `nix hash convert`.");
+
     std::optional<HashAlgorithm> ha;
     bool flat = false;
     HashFormat hashFormat = HashFormat::Base16;