From a418ea95c0f5afb50cbb78aedecc68373353d06e Mon Sep 17 00:00:00 2001
From: Jimmy Hu <jimmy.hu@dexon.org>
Date: Wed, 8 Aug 2018 11:28:57 +0800
Subject: crypto: Add crypto module. (#34)

---
 GNUmakefile | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'GNUmakefile')

diff --git a/GNUmakefile b/GNUmakefile
index 1680919..ab39a5c 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -50,9 +50,22 @@ all: $(COMPONENTS)
 
 $(foreach component, $(COMPONENTS), $(eval $(call BUILD_RULE,$(component))))
 
-pre-build:
-
-pre-submit: check-format lint test vet
+pre-build: eth-dep
+
+pre-submit: eth-dep check-format lint test vet
+
+eth-dep:
+	@rm -rf vendor/github.com/ethereum/go-ethereum/crypto/secp256k1/libsecp256k1
+	@if [ ! -d .dep/libsecp256k1 ]; then \
+		git init .dep/libsecp256k1; \
+		cd .dep/libsecp256k1; \
+		git remote add origin https://github.com/ethereum/go-ethereum.git; \
+		git config core.sparsecheckout true; \
+		echo "crypto/secp256k1/libsecp256k1/*" >> .git/info/sparse-checkout; \
+		cd ../../; \
+	fi
+	@cd .dep/libsecp256k1; git pull --depth=1 origin master; cd ../../
+	@cp -r .dep/libsecp256k1/crypto/secp256k1/libsecp256k1 vendor/github.com/ethereum/go-ethereum/crypto/secp256k1
 
 format:
 	@go fmt `go list ./... | grep -v 'vendor'`
-- 
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