update

2022-06-05 10:19:11 +08:00 · 2022-06-05 10:19:11 +08:00 · 28daffb38a
commit 28daffb38a
parent 65e2409fae
11 changed files with 463 additions and 1 deletions
--- a/babylonjs/start.md
+++ b/babylonjs/start.md
@ -0,0 +1,57 @@
+# Babylon js
+
+
+
+## depends
+
+```bash
+vue 3
+babylonjs 5
+```
+
+
+
+##  install
+
+```bash
+yarn add @babylonjs/core @babylonjs/loaders
+```
+
+
+
+## 三核心
+
+- 场景
+- 摄像头
+- 光
+
+一般使用babylonjs 分为 3个步骤
+
+```js
+// 1 初始化 engine
+var canvas = document.getElementById('renderCanvas')
+let engine = new BABYLON.Engine(canvas, true, { preserveDrawingBuffer: true, stencil: true });
+
+// 2 添加 场景、灯光、摄像头
+var createScene = function () {
+    const scene = new BABYLON.Scene(engine);
+    const camera = new BABYLON.ArcRotateCamera("camera", -Math.PI / 2, Math.PI / 2.5, 3, new BABYLON.Vector3(0, 0, 0));
+    camera.attachControl(canvas, true);
+    const light = new BABYLON.HemisphericLight("light", new BABYLON.Vector3(0, 0, 1), scene);
+    const box = BABYLON.MeshBuilder.CreateBox("box", {});
+
+    return scene;
+}
+var scene = createScene();
+
+// 3 循环渲染
+engine.runRenderLoop(function () {
+    scene.render();
+});
+
+```
+
+
+
+### 加载模型
+
--- a/book/eyi.md
+++ b/book/eyi.md
@ -0,0 +1,3 @@
+# 恶意
+
+真的是太绝了
--- a/linux/iscsi.md
+++ b/linux/iscsi.md
@ -0,0 +1,14 @@
+# iscsi
+
+
+
+```bash
+sudo apt-get install open-iscsi
+sudo iscsiadm -m discovery -t sendtargets -p 10.*.*.*
+# 挂载
+sudo iscsiadm -m node -T iqn.2000-01.com.synology:NAS01.Target-4.f41596f93f -p 10.*.*.* -l
+# 卸载iscsi卷
+sudo iscsiadm -m node -T iqn.2000-01.com.synology:NAS01.Target-4.f41596f93f -p 10.*.*.* -u
+```
+
+sudo dd if=/dev/sdb of=/dev/sdd count=322122547200 bs=1M iflag=count_bytes,direct oflag=direct
--- a/linux/lvm_recover.md
+++ b/linux/lvm_recover.md
@ -0,0 +1,3 @@
+# lvm_recover
+
+https://www.golinuxcloud.com/recover-lvm2-partition-restore-vg-pv-metadata/
--- a/openstack/kolla.md
+++ b/openstack/kolla.md
@ -56,7 +56,7 @@ source ~/kolla_venv/bin/activate
 # centos7 缺 utf-8 字符集
 localedef -v -c -i en_US -f UTF-8 en_US.UTF-8
 pip install -U pip
-pip install ansible
+pip install ansible==10.2
 pip install ./kolla
 pip install ./kolla-ansible
 sudo mkdir -p /etc/kolla
@ -88,6 +88,9 @@ vim /root/kolla_venv/share/kolla-ansible/ansible/roles/baremetal/defaults/main.y
 docker_yum_gpgcheck: false
 enable_docker_repo: false

+vim /home/parallels/kolla_venv/share/kolla-ansible/ansible/roles/prechecks/tasks/service_checks.yml
+or result.stdout | regex_replace('.*\\b(\\d+\\.\\d+\\.\\d+)\\b.*', '\\1')  is version(docker_version_min, '<')
+
 kolla-ansible -i ./multinode bootstrap-servers
 kolla-ansible -i ./multinode prechecks
 kolla-ansible -i ./multinode deploy
--- a/rust/date.md
+++ b/rust/date.md
@ -0,0 +1,10 @@
+# rust 获取东八区时间
+
+
+
+```rust
+use time;
+
+let d = time::OffsetDateTime::now_utc().to_offset(time::UtcOffset::from_hms(8, 0, 0).unwrap());
+
+```
--- a/rust/future.md
+++ b/rust/future.md
@ -0,0 +1,107 @@
+# rust 异步基础
+
+
+
+### future
+
+Future 生成三种方式
+
+	- async {}
+	- fn {} -> impl Future<>
+	- Impl Future for struct_future {}
+
+```rust
+use std::future::Future;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+use tokio::time::{sleep, Duration, Sleep};
+
+struct ReadFileFuture {
+    count: u8,
+    sp: Pin<Box<Sleep>>,
+}
+
+impl Future for ReadFileFuture {
+    type Output = String;
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        match self.sp.as_mut().poll(cx) {
+            Poll::Pending => {
+                println!("wait ....");
+                return Poll::Pending;
+            }
+            Poll::Ready(()) => {
+                println!("finished wait");
+                // return Poll::Ready("asd".to_string());
+            }
+        }
+        if self.count < 5 {
+            println!(" continue read file");
+            self.count = self.count + 1;
+            cx.waker().clone().wake();
+            Poll::Pending
+        } else {
+            println!("finished to read file.");
+            return Poll::Ready("asd".to_string());
+        }
+    }
+}
+
+fn task() -> impl Future<Output = String> {
+    async {
+        sleep(Duration::new(1, 0)).await;
+        println!("task finished. cost 1.");
+        String::from("asd")
+    }
+}
+
+async fn task2() {
+    sleep(Duration::new(2, 0)).await;
+    println!("task2 finished. cost 2s")
+}
+#[tokio::main]
+async fn main() {
+    let d = Duration::new(4, 0);
+    let mut s = sleep(d);
+    let mut f1 = ReadFileFuture {
+        count: 0,
+        sp: Box::pin(s),
+    };
+    let h1 = tokio::spawn(f1);
+    let h3 = tokio::spawn(task2());
+    let h2 = tokio::spawn(task());
+    _ = tokio::join!(h1, h2, h3);
+    println!("main finished")
+}
+```
+
+
+
+- 运行结果
+
+  ```bash
+  wait ....
+  
+  
+  task finished. cost 1.
+  
+  task2 finished. cost 2s
+  
+  
+  finished wait
+   continue read file
+  finished wait
+   continue read file
+  finished wait
+   continue read file
+  finished wait
+   continue read file
+  finished wait
+   continue read file
+  finished wait
+  finished to read file.
+  main finished
+  
+  ```
+
+  
--- a/rust/marco.md
+++ b/rust/marco.md
@ -0,0 +1,199 @@
+# Rust 宏编程（1）
+
+
+
+rust 宏主要分为 派生宏、类函数宏、属性宏，可以非常方便的生成重复性代码。
+
+终于可以能写会写代码的代码了罒ω罒。
+
+### 环境准备
+
+```bash
+# dtolnay 大佬提供的 宏教学库
+git clone https://github.com/dtolnay/proc-macro-workshop.git
+
+## cargo expand  查看宏产生的全部代码
+rustup toolchain install nightly-x86_64-apple-darwin
+# 可先执行该指令 会提示你看着那个版本的nightly
+cargo +nightly install cargo-expand
+```
+
+
+
+## cargo test
+
+- 目录结构
+
+```bash
+
+cd builder/
+tree
+
+.
+├── Cargo.toml
+├── src
+│   └── lib.rs    # 要编写宏的文件
+└── tests
+    ├── 01-parse.rs
+    ├── 02-create-builder.rs
+    ├── 03-call-setters.rs
+    ├── 04-call-build.rs
+    ├── 05-method-chaining.rs
+    ├── 06-optional-field.rs
+    ├── 07-repeated-field.rs
+    ├── 08-unrecognized-attribute.rs
+    ├── 08-unrecognized-attribute.stderr
+    ├── 09-redefined-prelude-types.rs
+    └── progress.rs  # 通过取消注释来确定运行那个test文件
+```
+
+- 编写宏代码
+
+```rust
+use proc_macro::TokenStream;
+
+#[proc_macro_derive(Builder)]
+pub fn derive(input: TokenStream) -> TokenStream {
+    let _ = input;
+  	// 打印看看input到底是什么
+    eprintln!("{:#?}", input);
+  	// 注释下行 并返回空的结果, 下行表示未实现该发放并进行panic
+    // unimplemented!()
+    TokenStream::new()
+}
+```
+
+- 运行 test
+
+```bash
+# builder 目录下
+cargo test
+# 可以查看 test 运行成功无报错 并打印input 结构
+TokenStream [
+    Ident {
+        ident: "pub",
+        span: #0 bytes(990..993),
+    },
+    Ident {
+        ident: "struct",
+        span: #0 bytes(994..1000),
+    },
+    Ident {
+        ident: "Command",
+        span: #0 bytes(1001..1008),
+    },
+    Group {
+        delimiter: Brace,
+        stream: TokenStream [
+            Ident {
+                ident: "executable",
+                span: #0 bytes(1015..1025),
+            },
+          	....
+          	....
+            ...
+            Punct {
+                ch: ',',
+                spacing: Alone,
+                span: #0 bytes(1103..1104),
+            },
+        ],
+        span: #0 bytes(1009..1106),
+    },
+]
+```
+
+
+
+## cargo expand
+
+- builder/src/lib.rs
+
+  ```rust
+  use proc_macro::TokenStream;
+  
+  #[proc_macro_derive(Builder)] 
+  pub fn derive(input: TokenStream) -> TokenStream {
+      eprintln!("{:#?}", input);
+      // 这里直接把传入的结构返回回去
+    	input
+  }
+  
+  ```
+
+- main.rs 根目录下
+
+  ```rust
+  use derive_builder::Builder;
+  
+  #[derive(Builder)]
+  pub struct Command {
+      executable: String,
+      args: Vec<String>,
+      env: Vec<String>,
+      current_dir: String,
+  }
+  
+  fn main() {}
+  ```
+
+- 查看扩展代码
+
+  ```bash
+  # 进入根目录, 运行
+  cargo expand --bin workshop
+  # 等同于
+  cargo expand
+  # 输出
+  ```
+
+  ```rust
+  #![feature(prelude_import)]
+  #[prelude_import]
+  use std::prelude::rust_2021::*;
+  #[macro_use]
+  extern crate std;
+  use derive_builder::Builder;
+  pub struct Command {
+      executable: String,
+      args: Vec<String>,
+      env: Vec<String>,
+      current_dir: String,
+  }
+  pub struct Command {
+      executable: String,
+      args: Vec<String>,
+      env: Vec<String>,
+      current_dir: String,
+  }
+  fn main() {}
+  
+  ```
+
+  可以看到生成了一个 多的Command结构体
+
+  ```bash
+  # 运行cargo test 可以看到报错 重复定义的Command
+  
+  ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+  error[E0428]: the name `Command` is defined multiple times
+    --> tests/01-parse.rs:27:1
+     |
+  27 | pub struct Command {
+     | ^^^^^^^^^^^^^^^^^^
+     | |
+     | `Command` redefined here
+     | previous definition of the type `Command` here
+     |
+     = note: `Command` must be defined only once in the type namespace of this module
+  ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+  
+  ```
+
+  
+
+剩下的就是根据tests/目录下每个测试文件编写符合要求的宏代码。
+
+祝各位顺利~
+
+rust真TM难学，其他语言能看着demo直接上手写项目， rus已经看了一周多了，还没开始写实际代码。
--- a/rust/rust.md
+++ b/rust/rust.md
@ -0,0 +1,24 @@
+# Rust
+
+#### install
+
+```bash
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+rustup update
+```
+
+
+
+
+
+## expand 
+
+```bash
+# just for mac 
+rustup toolchain install nightly-x86_64-apple-darwin
+
+cargo +nightly install cargo-expand
+
+
+```
+
--- a/vim/mac.md
+++ b/vim/mac.md
@ -0,0 +1,18 @@
+# vim config for mac
+
+```bash
+
+```
+
+
+
+### fzf
+
+```bash
+ brew install fzf
+ # brew install --build-from-source fzf
+ 
+```
+
+
+
--- a/vue/vue3.md
+++ b/vue/vue3.md
@ -1,5 +1,17 @@
 # vue3 typescript vue-router vuex setup

+
+
+## 使用模板
+
+```bash
+npx degit veypi/vite-starter#master project_name
+```
+
+
+
+
+
 ### 最近发现vue3相关库都更新的差不多了，尝试学习了新的版本, 使用setup 的确变了很多，像ref   、prop面目全非，刚开始用还找了很久

 ## 创建项目
@ -43,6 +55,18 @@ export default router



+### tailwindcss
+
+
+
+```bash
+npm install -D tailwindcss@latest postcss@latest autoprefixer@latest
+npx tailwindcss init -p
+
+```
+
+
+
 ### [vuex](https://next.vuex.vuejs.org/zh/guide/typescript-support.html)

 ```bash