chore: use lsp to get parent process id (#11083)

Removes the previously added internal `--parent-pid` flag. This solution is better.

2 files changed, 7 insertions, 5 deletions

diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index 00f49b05d..3e30d2d69 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -39,6 +39,7 @@ use super::diagnostics::DiagnosticSource;
 use super::documents::DocumentCache;
 use super::documents::LanguageId;
 use super::lsp_custom;
+use super::parent_process_checker;
 use super::performance::Performance;
 use super::registries;
 use super::sources;
@@ -530,6 +531,11 @@ impl Inner {
     info!("Starting Deno language server...");
     let mark = self.performance.mark("initialize", Some(&params));
 
+    // exit this process when the parent is lost
+    if let Some(parent_pid) = params.process_id {
+      parent_process_checker::start(parent_pid)
+    }
+
     let capabilities = capabilities::server_capabilities(&params.capabilities);
 
     let version = format!(
diff --git a/cli/lsp/mod.rs b/cli/lsp/mod.rs
index 4723f8b56..c05241ae1 100644
--- a/cli/lsp/mod.rs
+++ b/cli/lsp/mod.rs
@@ -23,14 +23,10 @@ mod text;
 mod tsc;
 mod urls;
 
-pub async fn start(parent_pid: Option<u32>) -> Result<(), AnyError> {
+pub async fn start() -> Result<(), AnyError> {
   let stdin = tokio::io::stdin();
   let stdout = tokio::io::stdout();
 
-  if let Some(parent_pid) = parent_pid {
-    parent_process_checker::start(parent_pid);
-  }
-
   let (service, messages) =
     LspService::new(language_server::LanguageServer::new);
   Server::new(stdin, stdout)