Lock binary dependencies to a specific commits / versions

This is basically copying over @anton's great script!

Also had to run `make format` to make this pass `test_lint`.
This PR also makes the make commands for tools further align
with the tendermint implementation.

Makefile

@@ -6,6 +6,9 @@ BUILD_FLAGS = -tags "${BUILD_TAGS}" -ldflags "-X github.com/cosmos/cosmos-sdk/ve
 GCC := $(shell command -v gcc 2> /dev/null)
 LEDGER_ENABLED ?= true
 UNAME_S := $(shell uname -s)
+GOTOOLS = \
+	github.com/golang/dep/cmd/dep \
+	github.com/alecthomas/gometalinter
 all: get_tools get_vendor_deps install install_examples install_cosmos-sdk-cli test_lint test
 
 ########################################
@@ -91,22 +94,25 @@ dist:
 ### Tools & dependencies
 
 check_tools:
-	cd tools && $(MAKE) check_tools
-
-check_dev_tools:
-	cd tools && $(MAKE) check_dev_tools
+	@# https://stackoverflow.com/a/25668869
+	@echo "Found tools: $(foreach tool,$(notdir $(GOTOOLS)),\
+        $(if $(shell which $(tool)),$(tool),$(error "No $(tool) in PATH")))"
 
 update_tools:
-	cd tools && $(MAKE) update_tools
+	@echo "--> Updating tools to correct version"
+	./scripts/get_tools.sh
 
 update_dev_tools:
-	cd tools && $(MAKE) update_dev_tools
+	@echo "--> Downloading linters (this may take awhile)"
+	$(GOPATH)/src/github.com/alecthomas/gometalinter/scripts/install.sh -b $(GOBIN)
 
 get_tools:
-	cd tools && $(MAKE) get_tools
+	@echo "--> Installing tools"
+	./scripts/get_tools.sh
 
 get_dev_tools:
-	cd tools && $(MAKE) get_dev_tools
+	@echo "--> Downloading linters (this may take awhile)"
+	$(GOPATH)/src/github.com/alecthomas/gometalinter/scripts/install.sh -b $(GOBIN)
 
 get_vendor_deps:
 	@echo "--> Generating vendor directory via dep ensure"
@@ -182,7 +188,7 @@ test_cover:
 
 test_lint:
 	gometalinter.v2 --config=tools/gometalinter.json ./...
-	!(gometalinter.v2 --exclude /usr/lib/go/src/ --exclude client/lcd/statik/statik.go --disable-all --enable='errcheck' --vendor ./... | grep -v "client/")
+	!(gometalinter.v2 --exclude /usr/lib/go/src/ --exclude client/lcd/statik/statik.go --exclude 'vendor/*' --disable-all --enable='errcheck' --vendor ./... | grep -v "client/")
 	find . -name '*.go' -type f -not -path "./vendor*" -not -path "*.git*" | xargs gofmt -d -s
 	dep status >> /dev/null
 	!(grep -n branch Gopkg.toml)

client/lcd/certificates.go

@@ -43,7 +43,7 @@ func generateSelfSignedCert(host string) (certBytes []byte, priv *ecdsa.PrivateK
 		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
 		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
 		BasicConstraintsValid: true,
-		IsCA:                  true,
+		IsCA: true,
 	}
 	hosts := strings.Split(host, ",")
 	for _, h := range hosts {

scripts/get_tools.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+set -e
+
+# This file downloads all of the binary dependencies we have, and checks out a
+# specific git hash.
+#
+# repos it installs:
+#   github.com/mitchellh/gox
+#   github.com/golang/dep/cmd/dep
+#   gopkg.in/alecthomas/gometalinter.v2
+#   github.com/gogo/protobuf/protoc-gen-gogo
+#   github.com/square/certstrap
+
+## check if GOPATH is set
+if [ -z ${GOPATH+x} ]; then
+	echo "please set GOPATH (https://github.com/golang/go/wiki/SettingGOPATH)"
+	exit 1
+fi
+
+mkdir -p "$GOPATH/src/github.com"
+cd "$GOPATH/src/github.com" || exit 1
+
+installFromGithub() {
+	repo=$1
+	commit=$2
+	# optional
+	subdir=$3
+	echo "--> Installing $repo ($commit)..."
+	if [ ! -d "$repo" ]; then
+		mkdir -p "$repo"
+		git clone "https://github.com/$repo.git" "$repo"
+	fi
+	if [ ! -z ${subdir+x} ] && [ ! -d "$repo/$subdir" ]; then
+		echo "ERROR: no such directory $repo/$subdir"
+		exit 1
+	fi
+	pushd "$repo" && \
+		git fetch origin && \
+		git checkout -q "$commit" && \
+		if [ ! -z ${subdir+x} ]; then cd "$subdir" || exit 1; fi && \
+		go install && \
+		if [ ! -z ${subdir+x} ]; then cd - || exit 1; fi && \
+		popd || exit 1
+	echo "--> Done"
+	echo ""
+}
+
+installFromGithub golang/dep 22125cfaa6ddc71e145b1535d4b7ee9744fefff2 cmd/dep
+## gometalinter v2.0.11
+installFromGithub alecthomas/gometalinter 17a7ffa42374937bfecabfb8d2efbd4db0c26741
+installFromGithub rakyll/statik v0.1.5

tools/gometalinter.json

@@ -6,5 +6,5 @@
     "Deadline": "500s",
     "Vendor": true,
     "Cyclo": 11,
-    "Exclude": ["/usr/lib/go/src/", "client/lcd/statik/statik.go"]
+    "Exclude": ["/usr/lib/go/src/", "client/lcd/statik/statik.go", "vendor/*"]
 }

x/distribution/types/validator_info.go

@@ -19,9 +19,9 @@ func NewValidatorDistInfo(operatorAddr sdk.ValAddress, currentHeight int64) Vali
 	return ValidatorDistInfo{
 		OperatorAddr:            operatorAddr,
 		FeePoolWithdrawalHeight: currentHeight,
-		Pool:                    DecCoins{},
-		PoolCommission:          DecCoins{},
-		DelAccum:                NewTotalAccum(currentHeight),
+		Pool:           DecCoins{},
+		PoolCommission: DecCoins{},
+		DelAccum:       NewTotalAccum(currentHeight),
 	}
 }