Squashed commit of the following:

commit 82cc5c1
Merge: 8229fc0 e3dc0a0
Author: Carlos LopezDeLara <carlos.lopezdelara@iohk.io>
Date:   Thu May 2 13:10:52 2024 -0600

    Merge branch 'cl/hardforkinit' of github.com:IntersectMBO/cardano-cli into cl/hardforkinit

commit 8229fc0
Author: Carlos LopezDeLara <carlos.lopezdelara@iohk.io>
Date:   Wed May 1 12:09:49 2024 -0600

    action create-hardfork command

    Co-Authored-By: Clément Hurlin <smelc@users.noreply.github.com>

commit e3dc0a0
Author: Carlos LopezDeLara <carlos.lopezdelara@iohk.io>
Date:   Wed May 1 12:09:49 2024 -0600

    action create-hardfork command

    Co-Authored-By: Clément Hurlin <smelc@users.noreply.github.com>

cardano-cli/src/Cardano/CLI/EraBased/Commands/Governance/Actions.hs

@@ -17,6 +17,7 @@ module Cardano.CLI.EraBased.Commands.Governance.Actions
   , GovernanceActionTreasuryWithdrawalCmdArgs(..)
   , UpdateProtocolParametersConwayOnwards(..)
   , UpdateProtocolParametersPreConway(..)
+  , GovernanceActionHardforkInitCmdArgs(..)
   , CostModelsFile(..)
   , renderGovernanceActionCmds
   ) where
@@ -37,6 +38,7 @@ data GovernanceActionCmds era
   | GovernanceActionCreateNoConfidenceCmd         !(GovernanceActionCreateNoConfidenceCmdArgs era)
   | GovernanceActionProtocolParametersUpdateCmd   !(GovernanceActionProtocolParametersUpdateCmdArgs era)
   | GovernanceActionTreasuryWithdrawalCmd         !(GovernanceActionTreasuryWithdrawalCmdArgs era)
+  | GovernanceActionHardforkInitCmd               !(GovernanceActionHardforkInitCmdArgs era) 
   | GovernanceActionInfoCmd                       !(GovernanceActionInfoCmdArgs era)
   | GovernanceActionViewCmd                       !(GovernanceActionViewCmdArgs era)
   deriving Show
@@ -126,6 +128,19 @@ data GovernanceActionTreasuryWithdrawalCmdArgs era
       , outFile                :: !(File () Out)
       } deriving Show
 
+data GovernanceActionHardforkInitCmdArgs era
+  = GovernanceActionHardforkInitCmdArgs
+      { eon                   :: !(ConwayEraOnwards era)
+      , networkId             :: !L.Network
+      , deposit               :: !L.Coin
+      , returnStakeAddress    :: !StakeIdentifier
+      , mPrevGovernanceActionId :: !(Maybe (TxId, Word32))
+      , proposalUrl           :: !ProposalUrl
+      , proposalHash          :: !(L.SafeHash L.StandardCrypto L.AnchorData)
+      , protVer               :: !L.ProtVer
+      , outFile               :: !(File () Out)
+      } deriving Show
+
 data GovernanceActionViewCmdArgs era
   = GovernanceActionViewCmdArgs
       { eon        :: !(ConwayEraOnwards era)
@@ -181,6 +196,9 @@ renderGovernanceActionCmds = ("governance action " <>) . \case
   GovernanceActionCreateNoConfidenceCmd {} ->
     "create-no-confidence"
 
+  GovernanceActionHardforkInitCmd {} ->
+    "create-hardfork"
+
   GovernanceActionInfoCmd {} ->
     "create-info"
 

cardano-cli/src/Cardano/CLI/EraBased/Options/Governance/Actions.hs

@@ -12,8 +12,8 @@ import           Cardano.Api.Shelley
 
 import qualified Cardano.CLI.EraBased.Commands.Governance.Actions as Cmd
 import           Cardano.CLI.EraBased.Options.Common
-import           Cardano.CLI.Types.Common
 import           Cardano.CLI.Parser
+import           Cardano.CLI.Types.Common
 
 import           Data.Foldable
 import           GHC.Natural (Natural)
@@ -36,6 +36,7 @@ pGovernanceActionCmds era =
     , pGovernanceActionNoConfidenceCmd era
     , pGovernanceActionProtocolParametersUpdateCmd era
     , pGovernanceActionTreasuryWithdrawalCmd era
+    , pGovernanceActionHardforkInitCmd era
     , pGovernanceActionViewCmd era
     ]
 
@@ -385,4 +386,48 @@ pNetwork  = asum $ mconcat
     ]
   ]
 
-
+pNewProtVer :: Parser (Natural, Natural)
+pNewProtVer = (,) <$> pProtMajor <*> pProtMinor
+  where
+    pProtMajor :: Parser Natural
+    pProtMajor =
+        Opt.option Opt.auto $ mconcat
+            [ Opt.long "protocol-major-version"
+            , Opt.metavar "MAJOR"
+            , Opt.help $ mconcat
+              ["Specify the major protocol version to fork into. It must be the next natural number " 
+              , "after the current version and must be supported by the node."
+              ]
+            ]  
+
+    pProtMinor :: Parser Natural
+    pProtMinor =
+        Opt.option Opt.auto $ mconcat
+            [ Opt.long "protocol-minor-version"
+            , Opt.metavar "MINOR"
+            , Opt.help "Minor protocol version. Must be zero when the major protocol version is increased." 
+            ]
+
+pPV :: Parser L.ProtVer
+pPV = mkProtocolVersionOrErr <$> pNewProtVer
+
+pGovernanceActionHardforkInitCmd
+  :: CardanoEra era
+  -> Maybe (Parser (Cmd.GovernanceActionCmds era))
+pGovernanceActionHardforkInitCmd era = do
+  eon <- forEraMaybeEon era
+  pure
+    $ subParser "create-hardfork"
+    $ Opt.info
+        ( fmap Cmd.GovernanceActionHardforkInitCmd $
+            Cmd.GovernanceActionHardforkInitCmdArgs eon
+              <$> pNetwork
+              <*> pGovActionDeposit
+              <*> pStakeIdentifier (Just "deposit-return")
+              <*> pPreviousGovernanceAction
+              <*> pAnchorUrl
+              <*> pAnchorDataHash
+              <*> pPV
+              <*> pFileOutDirection "out-file" "Output filepath of the hardfork proposal."
+        )
+    $ Opt.progDesc "Create a hardfork initiation proposal."

cardano-cli/src/Cardano/CLI/EraBased/Run/Governance/Actions.hs

@@ -46,6 +46,9 @@ runGovernanceActionCmds = \case
   GovernanceActionCreateNoConfidenceCmd args ->
     runGovernanceActionCreateNoConfidenceCmd args
 
+  GovernanceActionHardforkInitCmd args ->
+    runGovernanceActionHardforkInitCmd args
+
   GovernanceActionInfoCmd args ->
     runGovernanceActionInfoCmd args
 
@@ -376,3 +379,41 @@ runGovernanceActionTreasuryWithdrawalCmd
   firstExceptT GovernanceActionsCmdWriteFileError . newExceptT
     $ conwayEraOnwardsConstraints eon
     $ writeFileTextEnvelope outFile Nothing proposal
+
+runGovernanceActionHardforkInitCmd :: ()
+  => GovernanceActionHardforkInitCmdArgs era
+  -> ExceptT GovernanceActionsError IO ()
+runGovernanceActionHardforkInitCmd
+    Cmd.GovernanceActionHardforkInitCmdArgs
+      { Cmd.eon
+      , Cmd.networkId
+      , Cmd.deposit
+      , Cmd.returnStakeAddress
+      , Cmd.mPrevGovernanceActionId
+      , Cmd.proposalUrl
+      , Cmd.proposalHash = anchorDataHash
+      , Cmd.protVer
+      , Cmd.outFile
+      } = do
+  depositStakeCredential
+    <- firstExceptT GovernanceActionsReadStakeCredErrror
+         $ getStakeCredentialFromIdentifier returnStakeAddress
+
+  let proposalAnchor = L.Anchor
+        { L.anchorUrl = unProposalUrl proposalUrl
+        , L.anchorDataHash
+        }
+
+  let sbe = conwayEraOnwardsToShelleyBasedEra eon
+      govActIdentifier = L.maybeToStrictMaybe
+                           $ shelleyBasedEraConstraints sbe
+                           $ uncurry createPreviousGovernanceActionId <$> mPrevGovernanceActionId
+      initHardfork = InitiateHardfork
+                      govActIdentifier
+                      protVer
+
+      proposalProcedure = createProposalProcedure sbe networkId deposit depositStakeCredential initHardfork proposalAnchor
+
+  firstExceptT GovernanceActionsCmdWriteFileError . newExceptT
+    $ conwayEraOnwardsConstraints eon
+    $ writeFileTextEnvelope outFile (Just "Hardfork initiation governance action") proposalProcedure

cardano-cli/test/cardano-cli-golden/Test/Golden/Governance/Action.hs

@@ -222,3 +222,24 @@ hprop_golden_conway_governance_action_create_protocol_parameters_update_partial_
     goldenActionFile <- H.note "test/cardano-cli-golden/files/golden/governance/action/conway-create-protocol-parameters-update-partial-costmodels.action"
     H.diffFileVsGoldenFile actionFile goldenActionFile
 
+hprop_golden_conway_governance_action_create_hardfork :: Property
+hprop_golden_conway_governance_action_create_hardfork =
+  propertyOnce . H.moduleWorkspace "tmp" $ \tempDir -> do
+    stakeAddressVKeyFile <- H.note "test/cardano-cli-golden/files/input/governance/stake-address.vkey"
+
+    actionFile <- noteTempFile tempDir "action"
+
+    void $ execCardanoCLI
+      ["conway", "governance", "action", "create-hardfork"
+      , "--anchor-url", "example.com"
+      , "--anchor-data-hash", "c7ddb5b493faa4d3d2d679847740bdce0c5d358d56f9b1470ca67f5652a02745"
+      , "--mainnet"
+      , "--deposit-return-stake-verification-key-file", stakeAddressVKeyFile
+      , "--governance-action-deposit", "12345"
+      , "--protocol-major-version", "10"
+      , "--protocol-minor-version", "0"
+      , "--out-file", actionFile
+      ]
+
+    goldenActionFile <- H.note "test/cardano-cli-golden/files/golden/governance/action/hardfork/conway-create-hardfork.action"
+    H.diffFileVsGoldenFile actionFile goldenActionFile

cardano-cli/test/cardano-cli-golden/files/golden/governance/action/hardfork/conway-create-hardfork.action

@@ -0,0 +1,5 @@
+{
+    "type": "Governance proposal",
+    "description": "Hardfork initiation governance action",
+    "cborHex": "84193039581de18f4a3466a404c11eb410313015b88e447d81b60089e25f611600e6058301f6820a00826b6578616d706c652e636f6d5820c7ddb5b493faa4d3d2d679847740bdce0c5d358d56f9b1470ca67f5652a02745"
+}

cardano-cli/test/cardano-cli-golden/files/golden/help.cli

@@ -6683,6 +6683,7 @@ Usage: cardano-cli conway governance action
                                               | create-no-confidence
                                               | create-protocol-parameters-update
                                               | create-treasury-withdrawal
+                                              | create-hardfork
                                               | view
                                               )
 
@@ -6863,6 +6864,27 @@ Usage: cardano-cli conway governance action create-treasury-withdrawal
 
   Create a treasury withdrawal.
 
+Usage: cardano-cli conway governance action create-hardfork 
+                                                              ( --mainnet
+                                                              | --testnet
+                                                              )
+                                                              --governance-action-deposit NATURAL
+                                                              ( --deposit-return-stake-verification-key STRING
+                                                              | --deposit-return-stake-verification-key-file FILE
+                                                              | --deposit-return-stake-key-hash HASH
+                                                              | --deposit-return-stake-script-file FILE
+                                                              | --deposit-return-stake-address ADDRESS
+                                                              )
+                                                              [--prev-governance-action-tx-id TXID
+                                                                --prev-governance-action-index WORD32]
+                                                              --anchor-url TEXT
+                                                              --anchor-data-hash HASH
+                                                              --protocol-major-version MAJOR
+                                                              --protocol-minor-version MINOR
+                                                              --out-file FILE
+
+  Create a hardfork initiation proposal.
+
 Usage: cardano-cli conway governance action view --action-file FILE
                                                    [ --output-json
                                                    | --output-yaml

cardano-cli/test/cardano-cli-golden/files/golden/help/conway_governance_action.cli

@@ -5,6 +5,7 @@ Usage: cardano-cli conway governance action
                                               | create-no-confidence
                                               | create-protocol-parameters-update
                                               | create-treasury-withdrawal
+                                              | create-hardfork
                                               | view
                                               )
 
@@ -22,4 +23,5 @@ Available commands:
                            Create a protocol parameters update.
   create-treasury-withdrawal
                            Create a treasury withdrawal.
+  create-hardfork          Create a hardfork initiation proposal.
   view                     View a governance action.

cardano-cli/test/cardano-cli-golden/files/golden/help/conway_governance_action_create-hardfork.cli

@@ -0,0 +1,52 @@
+Usage: cardano-cli conway governance action create-hardfork 
+                                                              ( --mainnet
+                                                              | --testnet
+                                                              )
+                                                              --governance-action-deposit NATURAL
+                                                              ( --deposit-return-stake-verification-key STRING
+                                                              | --deposit-return-stake-verification-key-file FILE
+                                                              | --deposit-return-stake-key-hash HASH
+                                                              | --deposit-return-stake-script-file FILE
+                                                              | --deposit-return-stake-address ADDRESS
+                                                              )
+                                                              [--prev-governance-action-tx-id TXID
+                                                                --prev-governance-action-index WORD32]
+                                                              --anchor-url TEXT
+                                                              --anchor-data-hash HASH
+                                                              --protocol-major-version MAJOR
+                                                              --protocol-minor-version MINOR
+                                                              --out-file FILE
+
+  Create a hardfork initiation proposal.
+
+Available options:
+  --mainnet                Use the mainnet magic id.
+  --testnet                Use the testnet magic id.
+  --governance-action-deposit NATURAL
+                           Deposit required to submit a governance action.
+  --deposit-return-stake-verification-key STRING
+                           Stake verification key (Bech32 or hex-encoded).
+  --deposit-return-stake-verification-key-file FILE
+                           Filepath of the staking verification key.
+  --deposit-return-stake-key-hash HASH
+                           Stake verification key hash (hex-encoded).
+  --deposit-return-stake-script-file FILE
+                           Filepath of the staking script.
+  --deposit-return-stake-address ADDRESS
+                           Target stake address (bech32 format).
+  --prev-governance-action-tx-id TXID
+                           Txid of the previous governance action.
+  --prev-governance-action-index WORD32
+                           Action index of the previous governance action.
+  --anchor-url TEXT        Anchor URL
+  --anchor-data-hash HASH  Proposal anchor data hash (obtain it with
+                           "cardano-cli conway governance hash anchor-data ...")
+  --protocol-major-version MAJOR
+                           Specify the major protocol version to fork into. It
+                           must be the next natural number after the current
+                           version and must be supported by the node.
+  --protocol-minor-version MINOR
+                           Minor protocol version. Must be zero when the major
+                           protocol version is increased.
+  --out-file FILE          Output filepath of the hardfork proposal.
+  -h,--help                Show this help text