Lib.rs

ctsh! 在编译时运行命令（可选地）捕获它们的输出。

use ctsh::ctsh;
let result = ctsh!("echo" "Hello" "World" as str);
assert_eq!(result.trim(), "Hello World");

lib.rs:

ctsh! 在编译时运行命令（可选地）捕获它们的输出。

use ctsh::ctsh;

let result = ctsh!("echo" "Hello" "World" as str);
assert_eq!(result.trim(), "Hello World");

命令可以一起通过管道连接。

let result = ctsh!("echo" "Hello" "World" | "tr" "-d" "l" as str);
assert_eq!(result.trim(), "Heo Word");

可以使用分号执行多个命令。如果它们的输出用于表达式，它们会生成所有输出的元组。

let result = ctsh!{
  "echo" "1" as str;
  "echo" "foo" as str;
};
assert_eq!(result.0.trim(), "1");
assert_eq!(result.1.trim(), "foo");

为命令提供了多种处理方式。

let result = ctsh!{
  "echo" "moo";           // execute command and ignore its output
  "echo" "oink" as str;   // capture output as string literal (`&'static str`)
  "echo" "meow" as bytes; // capture output as byte literal (`&'static [u8; _]`)
  "echo" "()" as expr;    // capture output as Rust expression
};
assert_eq!(result, ("oink\n", b"meow\n", ()));

ctsh!{
  "echo" r#"
    #[derive(Debug)]
    struct Foo;
    let result = format!("{:?}", Foo);
  "# as stmts; // capture output as Rust statements (cannot be mixed with expression capturing)
}
assert_eq!(result, "Foo");

每个 ctsh! 都在 CARGO_MANIFEST_DIR 开始执行命令。

let result = ctsh!("pwd" as str);
assert_eq!(result.trim(), env!("CARGO_MANIFEST_DIR"));

使用 cd 来更改目录。注意：cd 使用规范化的路径，并解析了所有符号链接。

let result = ctsh!{
  cd "/";
  "pwd" as str;
};
assert_eq!(result.trim(), "/");

可以使用特殊形式 cd temp 来创建并进入一个在之后会被清理的临时目录。

ctsh!{
  cd temp;
  "touch" "garbage"; // does not leave any `garbage` files on your computer
}

ctsh! 如果命令失败，将导致编译时错误。

ctsh!("false")

ctsh!("false" | "true")

使用 ? 标记可能会失败的每个命令来忽略错误。

ctsh!("false" ? | "true")

ctsh!("false" | "true" ?)