GXL 语法

结构

#![allow(unused)]
fn main() {
mod envs {
 env dev {
 }
}

mod main {
    flow conf {
    }
}
}

• mod 模块
• env 环境
• flow 处理流

flow

示例

简单使用

#![allow(unused)]
fn main() {
flow test {
  gx.echo (  "hello world" );
}
}

增加描述

#![allow(unused)]
fn main() {
#[usage(desp="test flow")]
flow test() {
  gx.echo (  "hello world" );
}
}

编排

#![allow(unused)]
fn main() {
flow head {
  gx.echo ( "head"; )
}
flow tail {
  gx.echo ( "tail"; )
}

// 执行过程为: test -> head -> tail
flow  @test | head | tail  { }
flow  test | head | tail  { }


// 执行过程为: head -> tail -> test
flow  | head | tail  |@test { }

//执行过程为: head -> test -> tail
flow  head | @test | tail {
  gx.echo ( "test"; )
}
}

定义

#![allow(unused)]
fn main() {
  flow [ <flows>|]  @<flow_name>  [|<flows>] {
  }
}

分支

#![allow(unused)]
fn main() {
mod main {
  api = "1.0"
  flow conf {
    if  ${API} == "1.0" {
        gx.echo ( value : "this is if true cond " );
    }
    else {
        gx.echo ( value : "this is if false cond" );
    }
  }
}
}

通配比较

#![allow(unused)]
fn main() {
mod main {
  api = "1.0"
  flow conf {
    if  ${API} =* "1*" {
        gx.echo ( value : "this is if true cond " );
    }
    else {
        gx.echo ( value : "this is if false cond" );
    }
  }
}
}

env

环境设定集合

示例

#![allow(unused)]
fn main() {
env dev {
    root = "./" ;
}
}

#![allow(unused)]
fn main() {
#[useage(desp="开发环境")]
env dev {
    root = "./" ;
}
}

mix env

#![allow(unused)]
fn main() {
env base {}
env dev  : base {
    root = "./" ;
}
}

• 默认env: default , 可以省去 gflow -e 参数 ;

定义

#![allow(unused)]
fn main() {
env <name> [: <mix-envs>] {
}
}

• name :
• mix-envs : 可继承的env

mod

mod 是顶级的组织结构

只有 envs,main 两个mod 中的 env 和 flow cli 直接load

#![allow(unused)]
fn main() {
mod envs {
  prop1 = "prop1"
  env dev {}
}
mod main {
  prop1 = "prop1"
  flow test {}
}
}

执行

#![allow(unused)]
fn main() {
gflow -e dev test 
}

mod 注解

mod继承

示例

#![allow(unused)]
fn main() {
}

Activity

• 包装shell 成为 activity

#![allow(unused)]
fn main() {
 activity copy {
     src = "" ;
     dst = "" ;
     log = "1" ;
     out = "true"
     executer = "copy_act.sh" ;
}
}