etcd: added patched etcd

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "rocksdb"]
 	path = rocksdb
 	url = https://github.com/facebook/rocksdb
+[submodule "etcd"]
+	path = etcd
+	url = https://github.com/metadium/etcd

Makefile

@@ -2,7 +2,7 @@
 # with Go source code. If you know what GOPATH is then you probably
 # don't need to bother with make.
 
-.PHONY: geth android ios geth-cross evm all test clean rocksdb
+.PHONY: geth android ios geth-cross evm all test clean rocksdb etcd
 .PHONY: geth-linux geth-linux-386 geth-linux-amd64 geth-linux-mips64 geth-linux-mips64le
 .PHONY: geth-linux-arm geth-linux-arm-5 geth-linux-arm-6 geth-linux-arm-7 geth-linux-arm64
 .PHONY: geth-darwin geth-darwin-386 geth-darwin-amd64
@@ -33,7 +33,7 @@ ROCKSDB_DIR=$(shell pwd)/rocksdb
 ROCKSDB_TAG=-tags rocksdb
 endif
 
-metadium: gmet logrot
+metadium: etcd gmet logrot
 	@[ -d build/conf ] || mkdir -p build/conf
 	@cp -p metadium/scripts/gmet.sh metadium/scripts/solc.sh build/bin/
 	@cp -p metadium/scripts/config.json.example		\
@@ -44,7 +44,7 @@ metadium: gmet logrot
 	@(cd build; tar cfz metadium.tar.gz bin conf)
 	@echo "Done building build/metadium.tar.gz"
 
-gmet: rocksdb metadium/governance_abi.go
+gmet: etcd rocksdb metadium/governance_abi.go
 ifeq ($(USE_ROCKSDB), NO)
 	$(GORUN) build/ci.go install $(ROCKSDB_TAG) ./cmd/gmet
 else
@@ -206,7 +206,7 @@ geth-windows-amd64:
 	@echo "Windows amd64 cross compilation done:"
 	@ls -ld $(GOBIN)/geth-windows-* | grep amd64
 
-gmet-linux:
+gmet-linux: etcd
 	@docker --version > /dev/null 2>&1;				\
 	if [ ! $$? = 0 ]; then						\
 		echo "Docker not found.";				\
@@ -226,6 +226,11 @@ rocksdb:
 	cd $(ROCKSDB_DIR) && make -j8 static_lib;
 endif
 
+etcd:
+	@if [ ! -e etcd/.git ]; then			\
+		git submodule update --init etcd;	\
+	fi
+
 AWK_CODE='								\
 BEGIN { print "package metadium"; bin = 0; name = ""; abi = ""; }	\
 /^{/ { bin = 1; abi = ""; name = ""; }					\

go.mod

@@ -93,3 +93,5 @@ require (
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gotest.tools v2.2.0+incompatible // indirect
 )
+
+replace github.com/coreos/etcd => ./etcd

go.sum

@@ -109,8 +109,6 @@ github.com/consensys/gnark-crypto v0.4.1-0.20210426202927-39ac3d4b3f1f h1:C43yEt
 github.com/consensys/gnark-crypto v0.4.1-0.20210426202927-39ac3d4b3f1f/go.mod h1:815PAHg3wvysy0SyIqanF8gZ0Y1wjk/hrDHD/iT88+Q=
 github.com/coreos/bbolt v1.3.1-etcd.8 h1:xTcsP8rG1dLB1VRhYSyf6sFQnIU39vC7OkbtEU8bWIA=
 github.com/coreos/bbolt v1.3.1-etcd.8/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
-github.com/coreos/etcd v0.0.0-20180723195020-3f725e190e0f h1:cSKf/6GIOMec3aXNGhkr2mPIFEPGQ5mtl5eu067urW8=
-github.com/coreos/etcd v0.0.0-20180723195020-3f725e190e0f/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmfM=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20181031085051-9002847aa142 h1:3jFq2xL4ZajGK4aZY8jz+DAF0FHjI51BXjjSwCzS1Dk=