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Early release libtmux is released, and its APIs may still change between releases. This site's structure and URLs may change too.

struct libtmux-rs latest

NewSessionOptions

Options for creating a session.

Source and package
Qualified name
libtmux::server::NewSessionOptions
Module
server
Package
libtmux
Source
crates/libtmux/src/server.rs
struct server.NewSessionOptions

Description#

A bare name is accepted wherever this is, so the common case stays short: server.new_session("work").

Examples#

use libtmux::NewSessionOptions;
let guard = libtmux::test::TestServer::new().await?;
let server = guard.server();
let session = server
.new_session(NewSessionOptions::new("work").window_name("editor"))
.await?;
let window = session.active_window().await?.expect("a session has a window");
assert_eq!(window.name().to_string_lossy(), "editor");
guard.shutdown().await?;

Create windows and split panes. Create a session and a second window, then split from a window and from a pane. Use Rust 1.85 or newer with Cargo, and tmux 3.3a or newer, on a Unix system. In an empty directory, create a project and add the published crates:

Terminal window
$ cargo init --name libtmux-api-example &&
cargo add libtmux@0.1.2 tempfile@3.20 &&
cargo add tokio@1.40 --features macros,rt,time

Replace src/main.rs with this complete program. It owns a private tmux socket, applies a ten-second task deadline, and reports both task and cleanup errors. Server::kill() stops its daemon; Server::shutdown() closes its client executor. Successful cleanup removes the temporary directory even when the task fails. View source

//! Create a session and window, then split a window and a pane.
use std::error::Error;
use std::time::Duration;
use libtmux::{NewSessionOptions, NewWindowOptions, Server, SplitDirection, SplitOptions};
type ExampleError = Box<dyn Error>;
fn check(condition: bool, message: &str) -> Result<(), ExampleError> {
if condition {
Ok(())
} else {
Err(message.into())
}
}
async fn demonstrate(server: &Server) -> Result<(), ExampleError> {
let session = server
.new_session(
NewSessionOptions::new("work")
.window_name("editor")
.command("cat"),
)
.await?;
let window = session
.new_window(NewWindowOptions::new("logs").command("cat"))
.await?;
let pane = window
.split(SplitOptions::new(SplitDirection::Below).command("cat"))
.await?;
pane.split(SplitOptions::new(SplitDirection::Right).command("cat"))
.await?;
check(
session.windows().await?.len() == 2,
"expected two session windows",
)?;
check(
window.panes().await?.len() == 3,
"expected three panes in split window",
)?;
check(
server.panes().await?.len() == 4,
"expected four panes on server",
)?;
println!("creation: 2 windows, 4 panes");
Ok(())
}
#[tokio::main(flavor = "current_thread")]
async fn main() -> Result<(), ExampleError> {
let root = std::path::Path::new("/tmp/libtmux-rs-dev");
std::fs::create_dir_all(root)?;
let directory = tempfile::Builder::new()
.prefix("api-creation-")
.tempdir_in(root)?;
std::fs::write(
directory.path().join("owner"),
std::process::id().to_string(),
)?;
let server = Server::builder()
.socket_path(directory.path().join("tmux.sock"))
.config_file("/dev/null")
.default_timeout(Duration::from_secs(5))
.build()?;
let outcome = tokio::time::timeout(Duration::from_secs(10), demonstrate(&server)).await;
// Stop the owned daemon before closing the client executor.
let killed = server.kill().await;
let closed = server.shutdown().await;
let cleanup_failed = killed.is_err() || closed.is_err();
let mut failures = Vec::new();
match outcome {
Ok(Ok(())) => {}
Ok(Err(error)) => failures.push(format!("example failed: {error}")),
Err(error) => failures.push(format!("example deadline: {error}")),
}
if let Err(error) = killed {
failures.push(format!("daemon cleanup: {error}"));
}
if let Err(error) = closed {
failures.push(format!("executor cleanup: {error}"));
}
if cleanup_failed {
let retained = directory.keep();
failures.push(format!("inspect retained directory {}", retained.display()));
} else if let Err(error) = directory.close() {
failures.push(format!("directory cleanup: {error}"));
}
if failures.is_empty() {
Ok(())
} else {
Err(failures.join("; ").into())
}
}

Run the consumer. Success exits with status 0; setup, operation, deadline or cleanup failures exit unsuccessfully and print diagnostics to stderr:

Terminal window
$ cargo run --quiet

Expected output:

creation: 2 windows, 4 panes

Members6#

  • command method Run a command instead of the default shell.
  • environment method Set an environment variable for the process the new session starts.
  • new method Describe a session with the given name.
  • size method Set the initial size, which a detached session would otherwise default.
  • start_directory method Set the working directory for the session's first window.
  • window_name method Name the session's first window, literally.
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