MaintainerProxy bindings (#3630)

This PR adds binding generation for the `MaintainerProxy` contract.
The bindings were generated using the `make mainnet` command.

pkg/chain/ethereum/common/gen/Makefile

@@ -57,6 +57,7 @@ endif
 contract/%.go cmd/%.go: abi/%.abi abi/%.go _address/% ${artifacts_dir}/%.json
 	$(info $* - generating Keep bindings)
 	@go run github.com/keep-network/keep-common/tools/generators/ethereum $< contract/$*.go cmd/$*.go
+	$(call after_contract_hook,$*)
 
 # Don't remove intermediate files that got generated.
 .PRECIOUS: abi/%.abi abi/%.go _address/%

pkg/chain/ethereum/tbtc/gen/Makefile

@@ -1,17 +1,18 @@
 npm_package_name=@keep-network/tbtc-v2
 
 # Contracts for which the bindings should be generated.
-required_contracts := Bridge LightRelay LightRelayMaintainerProxy WalletCoordinator
+required_contracts := Bridge MaintainerProxy LightRelay LightRelayMaintainerProxy WalletCoordinator
 
 # There is a bug in the currently used abigen version (v1.10.19) that makes it
 # re-declaring structs used by multiple contracts
 # https://github.com/ethereum/go-ethereum/issues/24627. This is a problem
-# for us because both Bridge and WalletCoordinator contracts use BitcoinTx.Info
-# struct which is then re-declared in the same package once abigen does its work.
+# for us because Bridge, WalletCoordinator and MaintainerProxy contracts all use
+# the same structs which are then re-declared in the same package once abigen
+# does its work.
 # An ultimate solution would be upgrading go-ethereum (thus abigen too) to v1.11 but
 # that version contains some breaking changes that make the upgrade non-trivial.
 # As a short-term workaround, we use some Makefile shenanigans to slightly rename
-# the conflicting BitcoinTxInfo struct in the WalletCoordinator output file.
+# the conflicting structs in the WalletCoordinator and MaintainerProxy output files.
 # We use perl for that purpose as sed is not cross-platform and works a bit
 # differently on GNU and BSD.
 #
@@ -20,9 +21,29 @@ required_contracts := Bridge LightRelay LightRelayMaintainerProxy WalletCoordina
 define after_abi_hook
 	$(eval type := $(1))
 	$(if $(filter $(type),WalletCoordinator),$(call fix_wallet_coordinator_collision))
+	$(if $(filter $(type),MaintainerProxy),$(call fix_maintainer_proxy_collision))
 endef
 define fix_wallet_coordinator_collision
 	@perl -pi -e s,BitcoinTxInfo,BitcoinTxInfo2,g ./abi/WalletCoordinator.go
 endef
+define fix_maintainer_proxy_collision
+	@perl -pi -e s,BitcoinTxUTXO,BitcoinTxUTXO2,g ./abi/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxProof,BitcoinTxProof2,g ./abi/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxInfo,BitcoinTxInfo3,g ./abi/MaintainerProxy.go
+endef
+
+# See explanation in https://github.com/keep-network/keep-common/issues/117.
+define after_contract_hook
+	$(eval type := $(1))
+	$(if $(filter $(type),MaintainerProxy),$(call fix_maintainer_proxy_contract_collision))
+endef
+define fix_maintainer_proxy_contract_collision
+	@perl -pi -e s,BitcoinTxUTXO,BitcoinTxUTXO2,g ./contract/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxProof,BitcoinTxProof2,g ./contract/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxInfo,BitcoinTxInfo3,g ./contract/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxUTXO,BitcoinTxUTXO2,g ./cmd/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxProof,BitcoinTxProof2,g ./cmd/MaintainerProxy.go
+	@perl -pi -e s,BitcoinTxInfo,BitcoinTxInfo3,g ./cmd/MaintainerProxy.go
+endef
 
 include ../../common/gen/Makefile