display owl on Capella transition (#4442)

Trigger ANSI art on upgrade to Capella, similar to the merge.
Future extension could log blinking art when user successfully managed
to get BLS to Execution change included into a block for a validator.

Art created by http://beatscribe.com/ (beatscribe#1008 on Discord)

beacon_chain/consensus_object_pools/block_pools_types.nim

@@ -25,7 +25,7 @@ import
 from ../spec/datatypes/capella import TrustedSignedBeaconBlock
 from ../spec/datatypes/eip4844 import TrustedSignedBeaconBlock
 
-from "."/vanity_logs/pandas import VanityLogs
+from "."/vanity_logs/vanity_logs import VanityLogs
 
 export
   options, sets, tables, hashes, helpers, beacon_chain_db, era_db, block_dag,
@@ -211,10 +211,7 @@ type
       ## full ChainDAG.
 
     vanityLogs*: VanityLogs
-      ## Upon the merge activating, these get displayed, at least once when the
-      ## head becomes post-merge and then when the merge is finalized. If chain
-      ## reorgs happen around the initial merge onMergeTransitionBlock might be
-      ## called several times.
+      ## Logs for celebratory events, typically featuring ANSI art.
 
     # -----------------------------------
     # Light client data

beacon_chain/consensus_object_pools/blockchain_dag.nim

@@ -1835,6 +1835,7 @@ proc updateHead*(
   let
     lastHeadStateRoot = getStateRoot(dag.headState)
     lastHeadMergeComplete = dag.headState.is_merge_transition_complete()
+    lastHeadKind = dag.headState.kind
 
   # Start off by making sure we have the right state - updateState will try
   # to use existing in-memory states to make this smooth
@@ -1856,6 +1857,16 @@ proc updateHead*(
       dag.vanityLogs.onMergeTransitionBlock != nil:
     dag.vanityLogs.onMergeTransitionBlock()
 
+  if dag.headState.kind > lastHeadKind:
+    case dag.headState.kind
+    of BeaconStateFork.Phase0 .. BeaconStateFork.Bellatrix:
+      discard
+    of BeaconStateFork.Capella:
+      if dag.vanityLogs.onUpgradeToCapella != nil:
+        dag.vanityLogs.onUpgradeToCapella()
+    of BeaconStateFork.EIP4844:
+      discard
+
   dag.db.putHeadBlock(newHead.root)
 
   updateBeaconMetrics(dag.headState, dag.head.bid, cache)

beacon_chain/consensus_object_pools/vanity_logs/capella/blink.ans

@@ -0,0 +1,31 @@
+
+    ...
+
+    ._.   :
+      $..   .%_...-     :
+    . /{$$$b'   ./$#% <    |
+    : Q.  $b.  |/$$#% |     |
+    :.`|%..  $b__....._____/$$#%  .'^  .      |
+    : `.%x.    %%% %% .%%^   - --  - --+---
+    | .)%:% $b%%%%%%%%%%%%  .%   .    |
+    |  |%%%  ==$$%%%%%X__-=$'x%%%      |
+    |  d@%% .:::.`.  .'.:::. %%%  ...|
+----+-- -  -      :$%%x ::.::.d    ::.:: %%x  :
+    |.  :$%%%  `::'d' .P `::' %%"  . ---- - .    .    :
+    |   :$%%%x.  .C'  d' %%";%. :.
+    |      .  !%%%% ^  | .P'  %Xx   . % :
+    :      :   Q%%%%%  `Q :
+    :   . .     .: ."$##%. |  . .
+    .   | :           :d$##%% ^.d$%%  .    |  | :
+       || ::          |##%x  ^   .$$$%%% . | || ::
+    . ||| :::         d##%%%  ^  Q$$%%%%%      -  -- ---+||| :::
+     ||\\ //::       :$####%%  .  Q$$$#%%%      ||\\ //::    .
+    |\\\\ ////:  - --d$##%%% ^     . Q$$$%%%     .       |\\\\ ////:
+    .. \\ // ..      $$#%%%^ ^ Q$$%%x    .   .. \\ // ..
+    `::.. ..:;'     .$$$##%%  ^  .       $$%%%%     :      `::.. ..:;'
+      `:: ::'      .$$BS22#%%% ^ . ~Q$%%%%      .      `:: ::'
+
+ d   b.$$$$$.$$$$$ $   5 $$$b  $$$$b d$$$b d   b $     d$$$$ d$$$b $b  $
+:$..:$..:$....:$..:$mmm$:$..:$:$..:$:$..:$:$..:$:$....:Q..........:$...$:$`$:$.
+:$:$:$  :$    :$  :$"":$:$  :$:$""$b:$. :$:$:$:$:$`""$b :$. .$:$ `$$
+ `$$$'.$$$$$  :$  :$  :$:$$$P':$  `$ `$$$' `$$$':$$$$$ `$$$P  `$$$':$  :$

beacon_chain/consensus_object_pools/vanity_logs/capella/color.ans

@@ -0,0 +1,31 @@
+
+    ...
+
+    ._.   :
+      $..   .%_...-     :
+    . /{$$$b'   ./$#% <    |
+    : Q.  $b.  |/$$#% |     |
+    :.`|%..  $b__....._____/$$#%  .'^  .      |
+    : `.%x.    %%% %% .%%^   - --  - --+---
+    | .)%:% $b%%%%%%%%%%%%  .%   .    |
+    |  |%%%  ==$$%%%%%X__-=$'x%%%      |
+    |  d@%% .:::.`.  .'.:::. %%%  ...|
+----+-- -  -      :$%%x ::.::.d    ::.:: %%x  :
+    |.  :$%%%  `::'d' .P `::' %%"  . ---- - .    .    :
+    |   :$%%%x.  .C'  d' %%";%. :.
+    |      .  !%%%% ^  | .P'  %Xx   . % :
+    :      :   Q%%%%%  `Q :
+    :   . .     .: ."$##%. |  . .
+    .   | :           :d$##%% ^.d$%%  .    |  | :
+       || ::          |##%x  ^   .$$$%%% . | || ::
+    . ||| :::         d##%%%  ^  Q$$%%%%%      -  -- ---+||| :::
+     ||\\ //::       :$####%%  .  Q$$$#%%%      ||\\ //::    .
+    |\\\\ ////:  - --d$##%%% ^     . Q$$$%%%     .       |\\\\ ////:
+    .. \\ // ..      $$#%%%^ ^ Q$$%%x    .   .. \\ // ..
+    `::.. ..:;'     .$$$##%%  ^  .       $$%%%%     :      `::.. ..:;'
+      `:: ::'      .$$BS22#%%% ^ . ~Q$%%%%      .      `:: ::'
+
+ d   b.$$$$$.$$$$$ $   5 $$$b  $$$$b d$$$b d   b $     d$$$$ d$$$b $b  $
+:$..:$..:$....:$..:$mmm$:$..:$:$..:$:$..:$:$..:$:$....:Q..........:$...$:$`$:$.
+:$:$:$  :$    :$  :$"":$:$  :$:$""$b:$. :$:$:$:$:$`""$b :$. .$:$ `$$
+ `$$$'.$$$$$  :$  :$  :$:$$$P':$  `$ `$$$' `$$$':$$$$$ `$$$P  `$$$':$  :$

beacon_chain/consensus_object_pools/vanity_logs/capella/mono.txt

@@ -0,0 +1,31 @@
+
+    .     .                                          .
+
+    .                  _                                          .        :
+                        $..           .          %_...-                    :
+    .                  /{$$$b'                  ./$#% <                    |
+    :                    Q.  $b.              |/$$#% |                     |
+    :         .         `|%..  $b__....._____/$$#%  .'^  .                 |
+    :                    `.%x.    %%% %% .%%      ^              - --  - --+---
+    |                    .)%:% $b%%%%%%%%%%%%  .%   .                      |
+    |                    |%%%  ==$$%%%%%X__-=$'x%%%                        |
+    |                    d@%% .:::.`.  .'.:::. %%%  .      .     .         |
+----+-- -  -            :$%%x ::.::.d    ::.:: %%x                         :
+    |     .             :$%%%  `::'d' .P `::' %%"  . ---- -      .    .    :
+    |                   :$%%%x.  .C'  d' %%";%.                  :         .
+    |                 .  !%%%% ^  | .P'  %Xx   . %               :
+    :                 :   Q%%%%%  `Q                             :
+    :   . .     .     : ."$##%                      .            |  . .
+    .   | :           :d$##%% ^           .d$%%             .    |  | :
+       || ::          |##%x  ^   .        $$$%%%      .          | || ::
+    . ||| :::         d##%%%  ^           Q$$%%%%%      -  -- ---+||| :::
+     ||\\ //::       :$####%%  .           Q$$$#%%%              ||\\ //::    .
+    |\\\\ ////:  - --d$##%%% ^     .        Q$$$%%%     .       |\\\\ ////:
+    .. \\ // ..      $$#%%%^ ^               Q$$%%x         .   .. \\ // ..
+    `::.. ..:;'     .$$$##%%  ^  .            $$%%%%     :      `::.. ..:;'
+      `:: ::'      .$$BS22#%%% ^      .       ~Q$%%%%      .      `:: ::'
+
+ d   b $$$$$ $$$$$ $   5 $$$b  $$$$b d$$$b d   b $     d$$$$       d$$$b $b  $
+ $   $   $     $   $mmm$ $   $ $   $ $   $ $   $ $     Q.          $   $ $`$ $
+ $ $ $   $     $   $"" $ $   $ $""$b $.  $ $ $ $ $     `""$b       $. .$ $ `$$
+ `$$$' $$$$$   $   $   $ $$$P' $  `$ `$$$' `$$$' $$$$$ `$$$P       `$$$' $  :$

beacon_chain/consensus_object_pools/vanity_logs/pandas.nim

@@ -1,24 +0,0 @@
-# beacon_chain
-# Copyright (c) 2022 Status Research & Development GmbH
-# Licensed and distributed under either of
-#   * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
-#   * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
-# at your option. This file may not be copied, modified, or distributed except according to those terms.
-
-when (NimMajor, NimMinor) < (1, 4):
-  {.push raises: [Defect].}
-else:
-  {.push raises: [].}
-
-import chronicles
-
-type
-  VanityLogs* = object
-    onMergeTransitionBlock*:          proc() {.gcsafe, raises: [Defect].}
-    onFinalizedMergeTransitionBlock*: proc() {.gcsafe, raises: [Defect].}
-
-# Created by http://beatscribe.com/ (beatscribe#1008 on Discord)
-# These need to be the main body of the log not to be reformatted or escaped.
-proc mono🐼*()  = notice "\n" & "text-version.txt".staticRead
-proc color🐼*() = notice "\n" & "color-version.ans".staticRead
-proc blink🐼*() = notice "\n" & "blink-version.ans".staticRead

beacon_chain/consensus_object_pools/vanity_logs/vanity_logs.nim

@@ -0,0 +1,41 @@
+# beacon_chain
+# Copyright (c) 2022 Status Research & Development GmbH
+# Licensed and distributed under either of
+#   * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
+#   * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
+# at your option. This file may not be copied, modified, or distributed except according to those terms.
+
+when (NimMajor, NimMinor) < (1, 4):
+  {.push raises: [Defect].}
+else:
+  {.push raises: [].}
+
+import
+  std/os,
+  chronicles
+
+type
+  LogProc = proc() {.gcsafe, raises: [Defect].}
+
+  VanityLogs* = object
+    # Upon the merge activating, these get displayed, at least once when the
+    # head becomes post-merge and then when the merge is finalized. If chain
+    # reorgs happen around the initial merge onMergeTransitionBlock might be
+    # called several times.
+    onMergeTransitionBlock*: LogProc
+    onFinalizedMergeTransitionBlock*: LogProc
+
+    # Gets displayed on upgrade to Capella. May be displayed multiple times
+    # in case of chain reorgs around the upgrade.
+    onUpgradeToCapella*: LogProc
+
+# Created by http://beatscribe.com/ (beatscribe#1008 on Discord)
+# These need to be the main body of the log not to be reformatted or escaped.
+
+proc mono🐼*()  = notice "\n" & staticRead("bellatrix" / "mono.txt")
+proc color🐼*() = notice "\n" & staticRead("bellatrix" / "color.ans")
+proc blink🐼*() = notice "\n" & staticRead("bellatrix" / "blink.ans")
+
+proc mono🦉*()  = notice "\n" & staticRead("capella" / "mono.txt")
+proc color🦉*() = notice "\n" & staticRead("capella" / "color.ans")
+proc blink🦉*() = notice "\n" & staticRead("capella" / "blink.ans")

beacon_chain/nimbus_beacon_node.nim

@@ -17,7 +17,7 @@ import
   stew/[byteutils, io2],
   eth/p2p/discoveryv5/[enr, random2],
   eth/keys,
-  ./consensus_object_pools/vanity_logs/pandas,
+  ./consensus_object_pools/vanity_logs/vanity_logs,
   ./networking/topic_params,
   ./rpc/[rest_api, state_ttl_cache],
   ./spec/datatypes/[altair, bellatrix, phase0],
@@ -115,21 +115,27 @@ declareGauge next_action_wait,
 
 logScope: topics = "beacnde"
 
-func getPandas(stdoutKind: StdoutLogKind): VanityLogs =
+func getVanityLogs(stdoutKind: StdoutLogKind): VanityLogs =
   case stdoutKind
   of StdoutLogKind.Auto: raiseAssert "inadmissable here"
   of StdoutLogKind.Colors:
     VanityLogs(
       onMergeTransitionBlock:          color🐼,
-      onFinalizedMergeTransitionBlock: blink🐼)
+      onFinalizedMergeTransitionBlock: blink🐼,
+      onUpgradeToCapella:              color🦉)
   of StdoutLogKind.NoColors:
     VanityLogs(
       onMergeTransitionBlock:          mono🐼,
-      onFinalizedMergeTransitionBlock: mono🐼)
+      onFinalizedMergeTransitionBlock: mono🐼,
+      onUpgradeToCapella:              mono🦉)
   of StdoutLogKind.Json, StdoutLogKind.None:
     VanityLogs(
-      onMergeTransitionBlock:          (proc() = notice "🐼 Proof of Stake Activated 🐼"),
-      onFinalizedMergeTransitionBlock: (proc() = notice "🐼 Proof of Stake Finalized 🐼"))
+      onMergeTransitionBlock:
+        (proc() = notice "🐼 Proof of Stake Activated 🐼"),
+      onFinalizedMergeTransitionBlock:
+        (proc() = notice "🐼 Proof of Stake Finalized 🐼"),
+      onUpgradeToCapella:
+        (proc() = notice "🦉 Withdrowls now available 🦉"))
 
 proc loadChainDag(
     config: BeaconNodeConf,
@@ -161,7 +167,7 @@ proc loadChainDag(
       else: nil
     dag = ChainDAGRef.init(
       cfg, db, validatorMonitor, extraFlags + chainDagFlags, config.eraDir,
-      vanityLogs = getPandas(detectTTY(config.logStdout)),
+      vanityLogs = getVanityLogs(detectTTY(config.logStdout)),
       lcDataConfig = LightClientDataConfig(
         serve: config.lightClientDataServe,
         importMode: config.lightClientDataImportMode,