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黎跃春,江湖人称春哥,孔壹学院、 链乎创始人,区块链职业教育布道师,通信和信息技术培养工程区块链高级授课专家。


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第一篇 - 手把手教你理清EOS各种开发环境搭建来龙去脉

主讲人:黎跃春 孔壹学院创始人

课程咨询,添加莉莉微信(kongyixueyuan)咨询

目前来讲,任何学习EOS相关技术的资料都来自https://github.com/EOSIO/eos,可能大家在搭建EOS开发环境的过程中,会很迷茫,网上资料都很乱,自己也理不清头绪,不知如何下手。在这里,春哥将一步步为你揭开层层面纱。

1. 硬件软件环境

因为EOS的版本太多,所以你需要先知道如何查看EOS对应版本的相关资料。

打开EOS Github官网https://github.com/EOSIO/eos,如下图所示,点击master,然后点击tag,你将会看到不同的版本及其对应的文档。

我在我电脑安装过各种各样的版本,踩过各种各样的莫名其妙的坑,这篇文章我将以如下配置为大家分享。

  • 操作系统

  • EOS 版本

2. 编译设置开发环境

2.1 获取EOS源码及其所有子模块

$ git clone https://github.com/eosio/eos --recursive

如果克隆代码时未带--recursive参数,那么可切换到项目路径下面执行如下命令,更新子模块。

$ git submodule update --init --recursive

2.2 编译源码生成可执行文件

切换到上面的项目根目录下面,执行如下命令。

liyuechun:eos yuechunli$ ./eosio_build.sh darwin full
liyuechun:eos yuechunli$ ls
CMakeLists.txt		debian			ring.dot
CMakeModules		docs			ring.png
Docker			eos-logo.png		scripts
Doxyfile		eos.doxygen.in		star.dot
HEADER			eosio_build.sh		star.png
Jenkinsfile		externals		testnet-diagrams.sh
LICENSE.txt		libraries		testnet.md
README.md		mesh.dot		testnet.template
build			mesh.png		tests
circle.yml		plugins			tools
contracts		programs
liyuechun:eos yuechunli$ ./eosio_build.sh darwin full

	Beginning build version: 1.2
	2018年 4月12日 星期四 07时44分06秒 UTC
	git head id: 96ee0325cc925ff3e90f865ebc72b01341196e08
	Current branch: * master

	ARCHITECTURE: Darwin

	OS name: Darwin
	OS Version: 10.13.3
	CPU speed: 250.00Ghz
	CPU cores: 4
	Physical Memory: 16 Gbytes
	Disk space total: 465G
	Disk space available: 133G
	.....
	漫长等待,半小时左右,网络不好的话,40 - 50分钟。
	[100%] Linking CXX executable chain_test
ld: warning: PIE disabled. Absolute addressing (perhaps -mdynamic-no-pic) not allowed in code signed PIE, but used in ___gmpn_divexact_1 from /usr/local/lib/libgmp.a(dive_1.o). To fix this warning, don't compile with -mdynamic-no-pic or link with -Wl,-no_pie
[100%] Built target chain_test


	 _______  _______  _______ _________ _______
	(  ____ \(  ___  )(  ____ \\__   __/(  ___  )
	| (    \/| (   ) || (    \/   ) (   | (   ) |
	| (__    | |   | || (_____    | |   | |   | |
	|  __)   | |   | |(_____  )   | |   | |   | |
	| (      | |   | |      ) |   | |   | |   | |
	| (____/\| (___) |/\____) |___) (___| (___) |
	(_______/(_______)\_______)\_______/(_______)

	EOS.IO has been successfully built. 0:11:48

	To verify your installation run the following commands:

	/usr/local/bin/mongod -f /usr/local/etc/mongod.conf &
	cd /Users/liyuechun/eos/build; make test

	For more information:
	EOS.IO website: https://eos.io
	EOS.IO Telegram channel @ https://t.me/EOSProject
	EOS.IO resources: https://eos.io/resources/
	EOS.IO wiki: https://github.com/EOSIO/eos/wiki

EOS附带的可执行程序:

liyuechun:programs yuechunli$ pwd
/Users/liyuechun/Desktop/0402/eos/build/programs
liyuechun:programs yuechunli$ ls
CMakeFiles		cmake_install.cmake	keosd
CTestTestfile.cmake	eosio-abigen		nodeos
Makefile		eosio-applesedemo
cleos			eosio-launcher
liyuechun:programs yuechunli$ 
  • nodeos: 区块链服务器节点生成组建
  • cleos: 和区块链交互的接口命令
  • keosd: EOS 钱包
  • eosio-launcher:节点网络组成和部署的应用

所有这些程序/eos/build/programs都存在于这个文件夹。

2.3 建立区块链节点

切换到目录eos/build/programs/nodeos下面,然后执行如下命令。

./nodeos命令可附带 --data-dir 节点文件夹名字 参数,默认文件夹为nodeos

liyuechun:nodeos yuechunli$ ./nodeos 

如下图所示,执行完./nodeos程序后会抱错,并且有如下两个提示。

generating default genesis file /Users/liyuechun/Library/Application Support/eosio/nodeos/config/genesis.json表示创建了一个nodeos节点文件夹。

No producers configured! Please add producer IDs and private keys to configuration.表示

liyuechun:nodeos yuechunli$ cd /Users/liyuechun/Library/Application\ Support/eosio/
liyuechun:eosio yuechunli$ ls
nodeos
liyuechun:eosio yuechunli$ cd nodeos/
liyuechun:nodeos yuechunli$ ls
config	data
liyuechun:nodeos yuechunli$ cd config/
liyuechun:config yuechunli$ ls
config.ini	genesis.json
liyuechun:config yuechunli$ cd ..
liyuechun:nodeos yuechunli$ ls
config	data
liyuechun:nodeos yuechunli$ cd data/
liyuechun:data yuechunli$ ls
blocks		default.wallet	shared_mem
liyuechun:data yuechunli$ 

config是区块链配置文件,data是区块链交易数据、钱包数据存储文件。我们需要修改config.ini文件里面的相关配置。

我的文件的内容如下:

# Track only transactions whose scopes involve the listed accounts. Default is to track all transactions. (eosio::account_history_plugin)
# filter_on_accounts =

# Limits the maximum time (in milliseconds) processing a single get_transactions call. (eosio::account_history_plugin)
get-transactions-time-limit = 3

# File to read Genesis State from (eosio::chain_plugin)
genesis-json = "/Users/liyuechun/Library/Application Support/eosio/nodeos/config/genesis.json"

# override the initial timestamp in the Genesis State file (eosio::chain_plugin)
# genesis-timestamp =

# the location of the block log (absolute path or relative to application data dir) (eosio::chain_plugin)
block-log-dir = "blocks"

# Pairs of [BLOCK_NUM,BLOCK_ID] that should be enforced as checkpoints. (eosio::chain_plugin)
# checkpoint =

# Limits the maximum time (in milliseconds) that a reversible block is allowed to run before being considered invalid (eosio::chain_plugin)
max-reversible-block-time = -1

# Limits the maximum time (in milliseconds) that is allowed a pushed transaction's code to execute before being considered invalid (eosio::chain_plugin)
max-pending-transaction-time = -1

# Limits the maximum time (in milliseconds) that is allowed a to push deferred transactions at the start of a block (eosio::chain_plugin)
max-deferred-transaction-time = 20

# Override default WASM runtime (eosio::chain_plugin)
# wasm-runtime =

# Time to wait, in milliseconds, between creating next faucet created account. (eosio::faucet_testnet_plugin)
faucet-create-interval-ms = 1000

# Name to use as creator for faucet created accounts. (eosio::faucet_testnet_plugin)
faucet-name = faucet

# [public key, WIF private key] for signing for faucet creator account (eosio::faucet_testnet_plugin)
faucet-private-key = ["EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV","5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3"]

# The local IP and port to listen for incoming http connections. (eosio::http_plugin)
http-server-address = 127.0.0.1:8888

# Specify the Access-Control-Allow-Origin to be returned on each request. (eosio::http_plugin)
# access-control-allow-origin =

# Specify the Access-Control-Allow-Headers to be returned on each request. (eosio::http_plugin)
# access-control-allow-headers =

# Specify if Access-Control-Allow-Credentials: true should be returned on each request. (eosio::http_plugin)
access-control-allow-credentials = false

# The queue size between nodeos and MongoDB plugin thread. (eosio::mongo_db_plugin)
mongodb-queue-size = 256

# MongoDB URI connection string, see: https://docs.mongodb.com/master/reference/connection-string/. If not specified then plugin is disabled. Default database 'EOS' is used if not specified in URI. (eosio::mongo_db_plugin)
# mongodb-uri =

# The actual host:port used to listen for incoming p2p connections. (eosio::net_plugin)
p2p-listen-endpoint = 0.0.0.0:9876

# An externally accessible host:port for identifying this node. Defaults to p2p-listen-endpoint. (eosio::net_plugin)
# p2p-server-address =

# The public endpoint of a peer node to connect to. Use multiple p2p-peer-address options as needed to compose a network. (eosio::net_plugin)
# p2p-peer-address =

# The name supplied to identify this node amongst the peers. (eosio::net_plugin)
agent-name = "EOS Test Agent"

# Can be 'any' or 'producers' or 'specified' or 'none'. If 'specified', peer-key must be specified at least once. If only 'producers', peer-key is not required. 'producers' and 'specified' may be combined. (eosio::net_plugin)
allowed-connection = any

# Optional public key of peer allowed to connect.  May be used multiple times. (eosio::net_plugin)
# peer-key =

# Tuple of [PublicKey, WIF private key] (may specify multiple times) (eosio::net_plugin)
# peer-private-key =

# Log level: one of 'all', 'debug', 'info', 'warn', 'error', or 'off' (eosio::net_plugin)
log-level-net-plugin = info

# Maximum number of clients from which connections are accepted, use 0 for no limit (eosio::net_plugin)
max-clients = 25

# number of seconds to wait before cleaning up dead connections (eosio::net_plugin)
connection-cleanup-period = 30

# True to require exact match of peer network version. (eosio::net_plugin)
network-version-match = 0

# number of blocks to retrieve in a chunk from any individual peer during synchronization (eosio::net_plugin)
sync-fetch-span = 100

# Enable block production, even if the chain is stale. (eosio::producer_plugin)
enable-stale-production = true

# Percent of producers (0-100) that must be participating in order to produce blocks (eosio::producer_plugin)
required-participation = 33

# ID of producer controlled by this node (e.g. inita; may specify multiple times) (eosio::producer_plugin)
producer-name = eosio

# Tuple of [public key, WIF private key] (may specify multiple times) (eosio::producer_plugin)
private-key = ["EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV","5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3"]

# The path of the wallet files (absolute path or relative to application data dir) (eosio::wallet_plugin)
wallet-dir = "."

# Timeout for unlocked wallet in seconds. Wallets will automatically lock after specified number of seconds of inactivity. Activity is defined as any wallet command e.g. list-wallets. (eosio::wallet_plugin)
# unlock-timeout =

# eosio key that will be imported automatically when a wallet is created. (eosio::wallet_plugin)
# eosio-key =

# Plugin(s) to enable, may be specified multiple times
# Load the block producer plugin, so you can produce blocks
plugin = eosio::producer_plugin
# Wallet plugin
plugin = eosio::wallet_api_plugin
# As well as API and HTTP plugins
plugin = eosio::chain_api_plugin
plugin = eosio::http_plugin

你需要做如下设置:

  • genesis-json = "/Users/liyuechun/Library/Application Support/eosio/nodeos/config/genesis.json"
  • enable-stale-production = true
  • producer-name = eosio
  • plugin = eosio::producer_plugin
  • plugin = eosio::wallet_api_plugin
  • plugin = eosio::chain_api_plugin
  • plugin = eosio::http_plugin

接下来再次启动./nodeos程序,每0.5秒会产生一个区块。

liyuechun:nodeos yuechunli$ ./nodeos 
2212313ms thread-0   chain_plugin.cpp:99           plugin_initialize    ] initializing chain plugin
2212313ms thread-0   wallet_plugin.cpp:41          plugin_initialize    ] initializing wallet plugin
2212313ms thread-0   http_plugin.cpp:141           plugin_initialize    ] host: 127.0.0.1 port: 8888 
2212313ms thread-0   http_plugin.cpp:144           plugin_initialize    ] configured http to listen on 127.0.0.1:8888
2212313ms thread-0   net_plugin.cpp:2628           plugin_initialize    ] Initialize net plugin
2212313ms thread-0   net_plugin.cpp:2644           plugin_initialize    ] Setting net_plugin logging level to info
2212313ms thread-0   net_plugin.cpp:2669           plugin_initialize    ] host: 0.0.0.0 port: 9876 
2212313ms thread-0   net_plugin.cpp:2745           plugin_initialize    ] my node_id is e03436889c70950da2180e6bc3b215d4283d078a54723ca32cd28c816aa4621b
2212313ms thread-0   main.cpp:90                   main                 ] nodeos version 96ee0325
2212313ms thread-0   main.cpp:91                   main                 ] eosio root is /Users/liyuechun/Library/Application Support
2212329ms thread-0   chain_plugin.cpp:208          plugin_startup       ] starting chain in read/write mode
2212329ms thread-0   chain_plugin.cpp:213          plugin_startup       ] Blockchain started; head block is #0, genesis timestamp is 2018-03-01T12:00:00.000
2212329ms thread-0   producer_plugin.cpp:161       plugin_startup       ] producer plugin:  plugin_startup() begin
2212329ms thread-0   producer_plugin.cpp:166       plugin_startup       ] Launching block production for 1 producers.

*******************************
*                             *
*   ------ NEW CHAIN ------   *
*   -  Welcome to EOSIO!  -   *
*   -----------------------   *
*                             *
*******************************

Your genesis seems to have an old timestamp
Please consider using the --genesis-timestamp option to give your genesis a recent timestamp

2212330ms thread-0   producer_plugin.cpp:176       plugin_startup       ] producer plugin:  plugin_startup() end
2212330ms thread-0   http_plugin.cpp:213           plugin_startup       ] start listening for http requests
2212330ms thread-0   wallet_api_plugin.cpp:70      plugin_startup       ] starting wallet_api_plugin
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/create
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/get_public_keys
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/import_key
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/list_keys
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/list_wallets
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/lock
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/lock_all
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/open
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/set_timeout
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/sign_transaction
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/wallet/unlock
2212330ms thread-0   chain_api_plugin.cpp:62       plugin_startup       ] starting chain_api_plugin
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/abi_bin_to_json
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/abi_json_to_bin
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_account
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_block
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_code
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_currency_balance
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_currency_stats
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_info
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_required_keys
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/get_table_rows
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/push_block
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/push_transaction
2212330ms thread-0   http_plugin.cpp:242           add_handler          ] add api url: /v1/chain/push_transactions
2212330ms thread-0   net_plugin.cpp:2757           plugin_startup       ] starting listener, max clients is 25
eosio generated block b8001d13... #1 @ 2018-04-12T08:36:52.500 with 0 trxs, lib: 0
eosio generated block 96eab818... #2 @ 2018-04-12T08:36:53.000 with 0 trxs, lib: 1
eosio generated block 635d105b... #3 @ 2018-04-12T08:36:53.500 with 0 trxs, lib: 2
eosio generated block 29ef0516... #4 @ 2018-04-12T08:36:54.000 with 0 trxs, lib: 3
eosio generated block 1fc1ac75... #5 @ 2018-04-12T08:36:54.500 with 0 trxs, lib: 4
eosio generated block 041d331f... #6 @ 2018-04-12T08:36:55.000 with 0 trxs, lib: 5
eosio generated block ebee3c7d... #7 @ 2018-04-12T08:36:55.500 with 0 trxs, lib: 6
eosio generated block eecd62a0... #8 @ 2018-04-12T08:36:56.000 with 0 trxs, lib: 7
eosio generated block c2b27ea5... #9 @ 2018-04-12T08:36:56.500 with 0 trxs, lib: 8
eosio generated block 6c66dc13... #10 @ 2018-04-12T08:36:57.000 with 0 trxs, lib: 9
eosio generated block 2534614c... #11 @ 2018-04-12T08:36:57.500 with 0 trxs, lib: 10
eosio generated block cce2934b... #12 @ 2018-04-12T08:36:58.000 with 0 trxs, lib: 11
eosio generated block 0165d88b... #13 @ 2018-04-12T08:36:58.500 with 0 trxs, lib: 12
eosio generated block fa240aa7... #14 @ 2018-04-12T08:36:59.000 with 0 trxs, lib: 13
eosio generated block 2965e8d4... #15 @ 2018-04-12T08:36:59.500 with 0 trxs, lib: 14

3. 查看区块信息

重新打开一个终端,切换到如下路径。

liyuechun:cleos yuechunli$ ./cleos -p 8888 get info
{
  "server_version": "96ee0325",
  "head_block_num": 342,
  "last_irreversible_block_num": 341,
  "head_block_id": "0000015609ca5ec4f237bbe49e8eb3aa36dbe8ecec86133340567dad5caf01ba",
  "head_block_time": "2018-04-12T08:39:43",
  "head_block_producer": "eosio"
}
liyuechun:cleos yuechunli$ ./cleos -p 8888 get info
{
  "server_version": "96ee0325",
  "head_block_num": 359,
  "last_irreversible_block_num": 358,
  "head_block_id": "00000167a933b393bc3562ca2998080748a1ed24f79014848e7b0b34f2c0c429",
  "head_block_time": "2018-04-12T08:39:51",
  "head_block_producer": "eosio"
}

5. 视频获取方式

关注公众,发送eos自动获取视频链接

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