昨天在升级substrate，问了大牛亮哥（https://mp.weixin.qq.com/s/pp7brVHizDu-a0S-qEe9bA）很多问题，今天来做个总结如何升级2.0
不在乎过程，可以直接翻到下面模板的github地址
1.0 生成
在产生新substrate模块中
substrate-node-new substrate-node-template <author-name>
产生的节点是 1.0的目录结构是
1.1 修改
如果升级2.0，现在仍没有详细文档， 最基本的模板在substrate的仓库node-template里https://github.com/paritytech/substrate/blob/0c08276bdbeac2e0f9bf1a5bc91b04271460e652/node-template/Cargo.toml
但是直接复制来出错，因为cargo都是引用相对路径的，这时只要改成git就好了。
以下是根目录cargo.toml的代码，可以直接复制以下代码：
# Cargo.toml
[package]
name = "skystrate-node"
version = "2.0.0"
authors = ["Skyh"]
build = "build.rs"
edition = "2018"
[profile.release]
panic = "unwind"
[[bin]]
name = "skystrate-node"
path = "src/main.rs"
[dependencies]
derive_more = "0.14.0"
futures = "0.1"
log = "0.4"
tokio = "0.1"
exit-future = "0.1"
parking_lot = "0.9.0"
trie-root = "0.15.2"
codec = { package = "parity-scale-codec", version = "1.0.0" }
ctrlc = { version = "3.0", features = ["termination"] }
sr-io = { git = "https://github.com/paritytech/substrate.git" }
substrate-cli = { git = "https://github.com/paritytech/substrate.git" }
substrate-client = { git = "https://github.com/paritytech/substrate.git" }
substrate-service = { git = "https://github.com/paritytech/substrate.git" }
substrate-executor = { git = "https://github.com/paritytech/substrate.git" }
network = { package = "substrate-network", git = "https://github.com/paritytech/substrate.git" }
inherents = { package = "substrate-inherents", git = "https://github.com/paritytech/substrate.git" }
basic-authorship = { package = "substrate-basic-authorship", git = "https://github.com/paritytech/substrate.git" }
transaction-pool = { package = "substrate-transaction-pool", git = "https://github.com/paritytech/substrate.git" }
primitives = { package = "substrate-primitives", git = "https://github.com/paritytech/substrate.git" }
babe = { package = "substrate-consensus-babe", git = "https://github.com/paritytech/substrate.git" }
grandpa = { package = "substrate-finality-grandpa", git = "https://github.com/paritytech/substrate.git" }
babe-primitives = { package = "substrate-consensus-babe-primitives", git = "https://github.com/paritytech/substrate.git" }
grandpa-primitives = { package = "substrate-finality-grandpa-primitives", git = "https://github.com/paritytech/substrate.git" }
skystrate-node-runtime = { path = "runtime" }
[build-dependencies]
vergen = "3"
基本上就把相对路径化成git地址了，
2.0新增了grandpa共识和新的功能，很多接口也变了地方了，检查很久才发现还在runtime多了一个生产wasm的build.rc文件
还有以下文件需要改
image.png
难道要贴代码吗？为了节省时间我把改好模板放到git上自己下载，是最新版的2.0改过来的，花了一整天
2.0 Git地址
直接clone就可以
https://github.com/skyh24/substrate-node20
另外就是把我的node名字改成自己的就OK
grep -r skystrate *
于是运行
cargo build
cargo run -- --dev
2.1 问题
改toml也慢慢试出rust排错的方法，可以尝试其中substrate很多模板，自己在toml里面增加就可以
image.png
RLS好像可以自动查找定义模块的定义，必须在根目录有toml，但是运行好慢，运行起来还会卡主其他cargo build进程，有没有更好的工具求推荐
image.png
可以查到定义
image.png
Cargo这个工具好耗资源，每次都要重新网上下载重新编译，RLS也是，这也是rust开发限制，cpu8核都像爆炸一样，如果有国人做个可以复用包管理工具类似npm等的更好
