add GeneralArgs support to lsp command (#510)

crates/taplo-cli/src/args.rs

@@ -56,7 +56,7 @@ pub enum TaploCommand {
     Format(FormatCommand),
     /// Language server operations.
     Lsp {
-        #[clap(subcommand)]
+        #[clap(flatten)]
         cmd: LspCommand,
     },
     /// Operations with the Taplo config file.
@@ -108,8 +108,17 @@ pub struct FormatCommand {
     pub stdin_filepath: Option<String>,
 }
 
+#[derive(Clone, Args)]
+pub struct LspCommand {
+    #[clap(flatten)]
+    pub general: GeneralArgs,
+
+    #[clap(subcommand)]
+    pub io: LspCommandIo,
+}
+
 #[derive(Clone, Subcommand)]
-pub enum LspCommand {
+pub enum LspCommandIo {
     /// Run the language server and listen on a TCP address.
     Tcp {
         /// The address to listen on.

crates/taplo-cli/src/commands/lsp.rs

@@ -1,22 +1,26 @@
-use std::sync::Arc;
-
 use taplo_common::environment::{native::NativeEnvironment, Environment};
 
-use crate::{args::LspCommand, default_config, Taplo};
+use crate::{args::{LspCommand, LspCommandIo}, Taplo};
 
 impl<E: Environment> Taplo<E> {
-    pub async fn execute_lsp(&self, cmd: LspCommand) -> Result<(), anyhow::Error> {
+    pub async fn execute_lsp(&mut self, cmd: LspCommand) -> Result<(), anyhow::Error> {
+        self.schemas
+            .cache()
+            .set_cache_path(cmd.general.cache_path.clone());
+
+        let config = self.load_config(&cmd.general).await?;
+
         let server = taplo_lsp::create_server();
         let world = taplo_lsp::create_world(NativeEnvironment::new());
-        world.set_default_config(Arc::new(default_config()));
+        world.set_default_config(config);
 
-        match cmd {
-            LspCommand::Tcp { address } => {
+        match cmd.io {
+            LspCommandIo::Tcp { address } => {
                 server
                     .listen_tcp(world, &address, async_ctrlc::CtrlC::new().unwrap())
                     .await
             }
-            LspCommand::Stdio {} => {
+            LspCommandIo::Stdio {} => {
                 server
                     .listen_stdio(world, async_ctrlc::CtrlC::new().unwrap())
                     .await