feat: Use autogenerated options.json

devenv/Cargo.toml

@@ -48,3 +48,6 @@ tracing-appender.workspace = true
 dashmap.workspace = true
 tree-sitter.workspace = true
 tree-sitter-nix.workspace = true
+
+[build-dependencies]
+cc = "*"

devenv/src/devenv.rs

@@ -1,4 +1,4 @@
-use super::{cli, cnix, config, log, lsp, tasks};
+use super::{cli, cnix, config, log, lsp, tasks, utils};
 use clap::crate_version;
 use cli_table::Table;
 use cli_table::{print_stderr, WithTitle};
@@ -397,7 +397,25 @@ impl Devenv {
         .await
     }
 
-    pub async fn lsp(&mut self, completion_json: &Value) -> Result<()> {
+    pub async fn lsp(&mut self) -> Result<()> {
+        let options = self.nix.build(&["optionsJSON"]).await?;
+        let options_path = options[0]
+            .join("share")
+            .join("doc")
+            .join("nixos")
+            .join("options.json");
+        let options_contents = fs::read(options_path).expect("Failed to read options.json");
+        let options_json: serde_json::Value =
+            serde_json::from_slice(&options_contents).expect("Failed to parse options.json");
+        let mut flatten_json = utils::flatten(options_json);
+        let filter_keys = vec![
+            String::from("declarations"),
+            String::from("loc"),
+            String::from("readOnly"),
+        ];
+        let filter_keys_refs: Vec<&str> = filter_keys.iter().map(|s| s.as_str()).collect();
+        let completion_json = utils::filter_json(&mut flatten_json, filter_keys_refs);
+
         let (stdin, stdout) = (tokio::io::stdin(), tokio::io::stdout());
         info!("Inside the tokio main async lsp");
         let (service, socket) = LspService::new(|client| lsp::Backend {

devenv/src/main.rs

@@ -49,19 +49,6 @@ async fn main() -> Result<()> {
         .with_writer(non_blocking)
         .finish();
     let _ = tracing::subscriber::set_global_default(subscriber);
-    let file = File::open("/home/k3ys/tmp/option.json").unwrap();
-    let json: serde_json::Value =
-        serde_json::from_reader(file).expect("file should be proper JSON");
-    // debug!("trimmed_json {:?}", trimmed_json);
-    let mut flatten_json = utils::flatten(json);
-    // debug!("flatten_json: {}", serde_json::to_string_pretty(&flatten_json).unwrap());
-    let filter_keys = vec![
-        String::from("declarations"),
-        String::from("loc"),
-        String::from("readOnly"),
-    ];
-    let filter_keys_refs: Vec<&str> = filter_keys.iter().map(|s| s.as_str()).collect();
-    let completion_json = utils::filter_json(&mut flatten_json, filter_keys_refs);
 
     let mut config = config::Config::load()?;
     for input in cli.global_options.override_input.chunks_exact(2) {
@@ -161,7 +148,7 @@ async fn main() -> Result<()> {
         Commands::Gc {} => devenv.gc(),
         Commands::Info {} => devenv.info().await,
         Commands::Repl {} => devenv.repl(),
-        Commands::Lsp {} => devenv.lsp(&completion_json).await,
+        Commands::Lsp {} => devenv.lsp().await,
         Commands::Build { attributes } => devenv.build(&attributes).await,
         Commands::Update { name } => devenv.update(&name).await,
         Commands::Up { process, detach } => devenv.up(process.as_deref(), &detach, &detach).await,