mirror of
https://github.com/denoland/deno.git
synced 2024-12-28 10:09:20 -05:00
233 lines
5.6 KiB
Rust
233 lines
5.6 KiB
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
|
|
use super::dispatch_json::{Deserialize, Value};
|
|
use super::io::{std_file_resource, StreamResource, StreamResourceHolder};
|
|
use crate::signal::kill;
|
|
use crate::state::State;
|
|
use deno_core::BufVec;
|
|
use deno_core::CoreIsolate;
|
|
use deno_core::ErrBox;
|
|
use deno_core::ResourceTable;
|
|
use deno_core::ZeroCopyBuf;
|
|
use futures::future::poll_fn;
|
|
use futures::future::FutureExt;
|
|
use std::cell::RefCell;
|
|
use std::rc::Rc;
|
|
use tokio::process::Command;
|
|
|
|
#[cfg(unix)]
|
|
use std::os::unix::process::ExitStatusExt;
|
|
|
|
pub fn init(i: &mut CoreIsolate, s: &Rc<State>) {
|
|
let t = &CoreIsolate::state(i).borrow().resource_table.clone();
|
|
|
|
i.register_op("op_run", s.stateful_json_op_sync(t, op_run));
|
|
i.register_op("op_run_status", s.stateful_json_op_async(t, op_run_status));
|
|
i.register_op("op_kill", s.stateful_json_op_sync(t, op_kill));
|
|
}
|
|
|
|
fn clone_file(
|
|
rid: u32,
|
|
resource_table: &mut ResourceTable,
|
|
) -> Result<std::fs::File, ErrBox> {
|
|
std_file_resource(resource_table, rid, move |r| match r {
|
|
Ok(std_file) => std_file.try_clone().map_err(ErrBox::from),
|
|
Err(_) => Err(ErrBox::bad_resource_id()),
|
|
})
|
|
}
|
|
|
|
fn subprocess_stdio_map(s: &str) -> Result<std::process::Stdio, ErrBox> {
|
|
match s {
|
|
"inherit" => Ok(std::process::Stdio::inherit()),
|
|
"piped" => Ok(std::process::Stdio::piped()),
|
|
"null" => Ok(std::process::Stdio::null()),
|
|
_ => Err(ErrBox::type_error("Invalid resource for stdio")),
|
|
}
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
#[serde(rename_all = "camelCase")]
|
|
struct RunArgs {
|
|
cmd: Vec<String>,
|
|
cwd: Option<String>,
|
|
env: Vec<(String, String)>,
|
|
stdin: String,
|
|
stdout: String,
|
|
stderr: String,
|
|
stdin_rid: u32,
|
|
stdout_rid: u32,
|
|
stderr_rid: u32,
|
|
}
|
|
|
|
struct ChildResource {
|
|
child: tokio::process::Child,
|
|
}
|
|
|
|
fn op_run(
|
|
state: &State,
|
|
resource_table: &mut ResourceTable,
|
|
args: Value,
|
|
_zero_copy: &mut [ZeroCopyBuf],
|
|
) -> Result<Value, ErrBox> {
|
|
let run_args: RunArgs = serde_json::from_value(args)?;
|
|
|
|
state.check_run()?;
|
|
|
|
let args = run_args.cmd;
|
|
let env = run_args.env;
|
|
let cwd = run_args.cwd;
|
|
|
|
let mut c = Command::new(args.get(0).unwrap());
|
|
(1..args.len()).for_each(|i| {
|
|
let arg = args.get(i).unwrap();
|
|
c.arg(arg);
|
|
});
|
|
cwd.map(|d| c.current_dir(d));
|
|
for (key, value) in &env {
|
|
c.env(key, value);
|
|
}
|
|
|
|
// TODO: make this work with other resources, eg. sockets
|
|
if run_args.stdin != "" {
|
|
c.stdin(subprocess_stdio_map(run_args.stdin.as_ref())?);
|
|
} else {
|
|
let file = clone_file(run_args.stdin_rid, resource_table)?;
|
|
c.stdin(file);
|
|
}
|
|
|
|
if run_args.stdout != "" {
|
|
c.stdout(subprocess_stdio_map(run_args.stdout.as_ref())?);
|
|
} else {
|
|
let file = clone_file(run_args.stdout_rid, resource_table)?;
|
|
c.stdout(file);
|
|
}
|
|
|
|
if run_args.stderr != "" {
|
|
c.stderr(subprocess_stdio_map(run_args.stderr.as_ref())?);
|
|
} else {
|
|
let file = clone_file(run_args.stderr_rid, resource_table)?;
|
|
c.stderr(file);
|
|
}
|
|
|
|
// We want to kill child when it's closed
|
|
c.kill_on_drop(true);
|
|
|
|
// Spawn the command.
|
|
let mut child = c.spawn()?;
|
|
let pid = child.id();
|
|
|
|
let stdin_rid = match child.stdin.take() {
|
|
Some(child_stdin) => {
|
|
let rid = resource_table.add(
|
|
"childStdin",
|
|
Box::new(StreamResourceHolder::new(StreamResource::ChildStdin(
|
|
child_stdin,
|
|
))),
|
|
);
|
|
Some(rid)
|
|
}
|
|
None => None,
|
|
};
|
|
|
|
let stdout_rid = match child.stdout.take() {
|
|
Some(child_stdout) => {
|
|
let rid = resource_table.add(
|
|
"childStdout",
|
|
Box::new(StreamResourceHolder::new(StreamResource::ChildStdout(
|
|
child_stdout,
|
|
))),
|
|
);
|
|
Some(rid)
|
|
}
|
|
None => None,
|
|
};
|
|
|
|
let stderr_rid = match child.stderr.take() {
|
|
Some(child_stderr) => {
|
|
let rid = resource_table.add(
|
|
"childStderr",
|
|
Box::new(StreamResourceHolder::new(StreamResource::ChildStderr(
|
|
child_stderr,
|
|
))),
|
|
);
|
|
Some(rid)
|
|
}
|
|
None => None,
|
|
};
|
|
|
|
let child_resource = ChildResource { child };
|
|
let child_rid = resource_table.add("child", Box::new(child_resource));
|
|
|
|
Ok(json!({
|
|
"rid": child_rid,
|
|
"pid": pid,
|
|
"stdinRid": stdin_rid,
|
|
"stdoutRid": stdout_rid,
|
|
"stderrRid": stderr_rid,
|
|
}))
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
#[serde(rename_all = "camelCase")]
|
|
struct RunStatusArgs {
|
|
rid: i32,
|
|
}
|
|
|
|
async fn op_run_status(
|
|
state: Rc<State>,
|
|
resource_table: Rc<RefCell<ResourceTable>>,
|
|
args: Value,
|
|
_zero_copy: BufVec,
|
|
) -> Result<Value, ErrBox> {
|
|
let args: RunStatusArgs = serde_json::from_value(args)?;
|
|
let rid = args.rid as u32;
|
|
|
|
state.check_run()?;
|
|
|
|
let run_status = poll_fn(|cx| {
|
|
let mut resource_table = resource_table.borrow_mut();
|
|
let child_resource = resource_table
|
|
.get_mut::<ChildResource>(rid)
|
|
.ok_or_else(ErrBox::bad_resource_id)?;
|
|
let child = &mut child_resource.child;
|
|
child.poll_unpin(cx).map_err(ErrBox::from)
|
|
})
|
|
.await?;
|
|
|
|
let code = run_status.code();
|
|
|
|
#[cfg(unix)]
|
|
let signal = run_status.signal();
|
|
#[cfg(not(unix))]
|
|
let signal = None;
|
|
|
|
code
|
|
.or(signal)
|
|
.expect("Should have either an exit code or a signal.");
|
|
let got_signal = signal.is_some();
|
|
|
|
Ok(json!({
|
|
"gotSignal": got_signal,
|
|
"exitCode": code.unwrap_or(-1),
|
|
"exitSignal": signal.unwrap_or(-1),
|
|
}))
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct KillArgs {
|
|
pid: i32,
|
|
signo: i32,
|
|
}
|
|
|
|
fn op_kill(
|
|
state: &State,
|
|
_resource_table: &mut ResourceTable,
|
|
args: Value,
|
|
_zero_copy: &mut [ZeroCopyBuf],
|
|
) -> Result<Value, ErrBox> {
|
|
state.check_unstable("Deno.kill");
|
|
state.check_run()?;
|
|
|
|
let args: KillArgs = serde_json::from_value(args)?;
|
|
kill(args.pid, args.signo)?;
|
|
Ok(json!({}))
|
|
}
|