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Command

Struct Command 

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pub struct Command { /* private fields */ }
Expand description

Builder for spawning a child process.

Mirrors std::process::Command. The program is searched on PATH (via posix_spawnp). The child inherits the parent’s environment.

§Example

let child = ringline::process::Command::new("grep")
    .arg("-r")
    .arg("pattern")
    .arg("src/")
    .spawn()?
    .await?;
let status = child.wait()?.await?;

Implementations§

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impl Command

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pub fn new(program: impl Into<String>) -> Self

Create a new command for the given program.

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pub fn arg(self, arg: impl Into<String>) -> Self

Add an argument.

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pub fn args(self, args: impl IntoIterator<Item = impl Into<String>>) -> Self

Add multiple arguments.

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pub fn spawn(self) -> Result<SpawnFuture>

Spawn the command.

Returns a future that resolves to a Child once the spawner pool has created the process and obtained its pidfd.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.