MAC本地安裝EOS及問題
本地安裝EOS
EOS是bm（位元股創始人）最新研發的第三代區塊鏈技術，每秒交易可達到百萬級，以太坊每秒也只能達到幾十筆。更適合高併發場景。
EOS的程式碼在github上開源，本文主要內容是如何在本地部署EOS。
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系統：Mac最新版
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依賴：Boost
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OpenSSL
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secp256k1-zkp
依賴環境安裝
因為eos是由c++編寫，所以我們需要安裝cmake等編譯工具。如果是linux無需安裝，mac需要安裝xcode後才可
brew install automake autoconf libtool cmake
這裡我們用homebrew包管理工具，更加簡單方便些。
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Boost
brew install Boost
OpenSSL
brew install OpenSSL
注意⚠️：因為新版mac已經移除openssl，這裡我們安裝完需要配置下環境變數
export OPENSSL_ROOT_DIR=/usr/local/Cellar/openssl/1.0.2k
export OPENSSL_INCLUDE_DIR=/usr/local/Cellar/openssl/1.0.2k/includes
secp256k1-zkp
git clone https://github.com/cryptonomex/secp256k1-zkp.git
Cd secp256k1-zkp
./autogen.sh
./configure
make
sudo make install
獲取eos程式碼
git clone https://github.com/eosio/eos --recursive
cd eos
cmake .
make
我們跑一下測試程式碼
在tests/目錄下，雙擊chain_test即可執行
執行eos
找到programs目錄下eosd中，雙擊執行eosd
這時候會報錯，需要我們修改下config.ini檔案，全域性搜尋下此檔案
加入
# Load the testnet genesis state, which creates some initial block producers with the default key
genesis-json = /path/to/eos/source/genesis.json
# Enable production on a stale chain, since a single-node test chain is pretty much always stale
enable-stale-production = true
# Enable block production with the testnet producers
producer-id = {"_id":0}
producer-id = {"_id":1}
producer-id = {"_id":2}
producer-id = {"_id":3}
producer-id = {"_id":4}
producer-id = {"_id":5}
producer-id = {"_id":6}
producer-id = {"_id":7}
producer-id = {"_id":8}
producer-id = {"_id":9}
producer-id = {"_id":10}
# Load the block producer plugin, so we can produce blocks
plugin = eos::producer_plugin
當然可以以Docker方式安裝
https://github.com/EOSIO/eos/裡有
問題集
1 cmake .時，EOSIO/chainbase下，沒有發現CMakeLists.txt檔案
=》
git未完成遞迴下載，手動下載https://github.com/EOSIO/chainbase 分支的，覆蓋chainbase資料夾內容
##############
2 cmake .時，發現找不到 OPENSSL_ROOT_DIR OPENSSL_INCLUDE_DIR
=》
《1 進入當前使用者的home目錄
輸入cd ~
《2 編輯.bash_profile
輸入 vim .bash_profile
《3在末尾插入
export OPENSSL_ROOT_DIR=/usr/local/Cellar/openssl/1.0.2k
export OPENSSL_INCLUDE_DIR=/usr/local/Cellar/openssl/1.0.2k/includes
《4 重新開一個命令列執行命令即可
####################
3 cmake . 時，發現
Could not find a package configuration file provided by "LLVM" (requested
version 4.0) with any of the following names:
LLVMConfig.cmake
llvm-config.cmake
Add the installation prefix of "LLVM" to CMAKE_PREFIX_PATH or set
"LLVM_DIR" to a directory containing one of the above files. If "LLVM"
provides a separate development package or SDK, be sure it has been
installed.
=》
《1 下載llvm.....xz
http://releases.llvm.org/download.html#4.0.0 =》Pre-Built Binaries:
mac下的連結為 http://releases.llvm.org/4.0.0/clang+llvm-4.0.0-x86_64-apple-darwin.tar.xz
《2 解壓
xz -d clang+llvm-4.0.0-x86_64-apple-darwin.tar.xz 生成tar檔案
tar xvf xxx.tar來解包到目標目錄
《3 修改 .bash_profile，在後面追加
export LLVM_DIR = /Users/liyihang/Downloads/clang+llvm-4.0.0-x86_64-apple-darwin/lib/cmake/llvm/LLVMConfig.cmake