From b0543aaba9d8e04b84e887836fff683e538beece Mon Sep 17 00:00:00 2001 From: Gwen Lg Date: Thu, 13 Jun 2024 22:16:45 +0200 Subject: [PATCH] add err output when server failed to start --- src/server.rs | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) diff --git a/src/server.rs b/src/server.rs index afda94c..a8ad1f1 100644 --- a/src/server.rs +++ b/src/server.rs @@ -16,6 +16,9 @@ pub enum Error { #[error("Server exit with `{status}`")] ServerExitWithStatus { status: ExitStatus }, + #[error("Server exit with `{status}` :\n{msg}")] + ServerExitWithError { status: ExitStatus, msg: String }, + #[error("Error append during check grammalecte-server status")] ServerCheckStatus(#[source] io::Error), @@ -91,7 +94,7 @@ impl EmbeddedServer { .arg("-p") .arg(port.to_string()) .stdout(Stdio::null()) - .stderr(Stdio::null()) + .stderr(Stdio::piped()) .spawn() .map_err(Error::StartServerProcess)?; @@ -118,6 +121,8 @@ impl Drop for EmbeddedServer { mod utils { use super::Error; + use std::fmt::Write; + use std::io::{BufRead, BufReader}; use std::process::Child; use std::time::Duration; @@ -151,7 +156,24 @@ mod utils { fn check_server(child: &mut Child) -> Result<(), Error> { match child.try_wait().map_err(Error::ServerCheckStatus)? { None => Ok(()), // Continue - Some(status) => Err(Error::ServerExitWithStatus { status }), + Some(status) => { + if let Some(err) = child.stderr.take() { + let mut msg = format!("grammalecte-server exit with `{status}`"); + writeln!(&mut msg, " :").unwrap(); + let err = BufReader::new(err); + err.lines().for_each(|line| match line { + Ok(line) => { + writeln!(&mut msg, "\t{}", line).unwrap(); + } + Err(err) => { + writeln!(&mut msg, "__{err:?}").unwrap(); + } + }); + Err(Error::ServerExitWithError { status, msg }) + } else { + Err(Error::ServerExitWithStatus { status }) + } + } } } }