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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use crate::args::Flags;
use crate::args::JupyterFlags;
use crate::tools::repl;
use crate::util::logger;
use crate::CliFactory;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
use deno_core::futures::channel::mpsc;
use deno_core::op2;
use deno_core::resolve_url_or_path;
use deno_core::serde::Deserialize;
use deno_core::serde_json;
use deno_core::Op;
use deno_core::OpState;
use deno_runtime::permissions::Permissions;
use deno_runtime::permissions::PermissionsContainer;
mod install;
mod jupyter_msg;
mod server;
pub async fn kernel(
flags: Flags,
jupyter_flags: JupyterFlags,
) -> Result<(), AnyError> {
if !flags.unstable {
eprintln!(
"Unstable subcommand 'deno jupyter'. The --unstable flag must be provided."
);
std::process::exit(70);
}
if !jupyter_flags.install && !jupyter_flags.kernel {
install::status()?;
return Ok(());
}
if jupyter_flags.install {
install::install()?;
return Ok(());
}
let connection_filepath = jupyter_flags.conn_file.unwrap();
// This env var might be set by notebook
if std::env::var("DEBUG").is_ok() {
logger::init(Some(log::Level::Debug));
}
let factory = CliFactory::from_flags(flags).await?;
let cli_options = factory.cli_options();
let main_module =
resolve_url_or_path("./$deno$jupyter.ts", cli_options.initial_cwd())
.unwrap();
// TODO(bartlomieju): should we run with all permissions?
let permissions = PermissionsContainer::new(Permissions::allow_all());
let npm_resolver = factory.npm_resolver().await?.clone();
let resolver = factory.resolver().await?.clone();
let worker_factory = factory.create_cli_main_worker_factory().await?;
let (stdio_tx, stdio_rx) = mpsc::unbounded();
let conn_file =
std::fs::read_to_string(&connection_filepath).with_context(|| {
format!("Couldn't read connection file: {:?}", connection_filepath)
})?;
let spec: ConnectionSpec =
serde_json::from_str(&conn_file).with_context(|| {
format!(
"Connection file is not a valid JSON: {:?}",
connection_filepath
)
})?;
let mut worker = worker_factory
.create_custom_worker(
main_module.clone(),
permissions,
vec![deno_jupyter::init_ops(stdio_tx)],
Default::default(),
)
.await?;
worker.setup_repl().await?;
let worker = worker.into_main_worker();
let repl_session =
repl::ReplSession::initialize(cli_options, npm_resolver, resolver, worker)
.await?;
server::JupyterServer::start(spec, stdio_rx, repl_session).await?;
Ok(())
}
deno_core::extension!(deno_jupyter,
options = {
sender: mpsc::UnboundedSender<server::StdioMsg>,
},
middleware = |op| match op.name {
"op_print" => op_print::DECL,
_ => op,
},
state = |state, options| {
state.put(options.sender);
},
);
#[op2(fast)]
pub fn op_print(
state: &mut OpState,
#[string] msg: &str,
is_err: bool,
) -> Result<(), AnyError> {
let sender = state.borrow_mut::<mpsc::UnboundedSender<server::StdioMsg>>();
if is_err {
if let Err(err) =
sender.unbounded_send(server::StdioMsg::Stderr(msg.into()))
{
eprintln!("Failed to send stderr message: {}", err);
}
return Ok(());
}
if let Err(err) = sender.unbounded_send(server::StdioMsg::Stdout(msg.into()))
{
eprintln!("Failed to send stdout message: {}", err);
}
Ok(())
}
#[derive(Debug, Deserialize)]
pub struct ConnectionSpec {
ip: String,
transport: String,
control_port: u32,
shell_port: u32,
stdin_port: u32,
hb_port: u32,
iopub_port: u32,
key: String,
}
|
