Use tree_sitter_ruby crate in generator

Cargo.lock

@@ -103,6 +103,7 @@ dependencies = [
  "node-types",
  "tracing",
  "tracing-subscriber",
+ "tree-sitter-ruby",
 ]
 
 [[package]]

generator/Cargo.toml

@@ -10,3 +10,4 @@ edition = "2018"
 node-types = { path = "../node-types" }
 tracing = "0.1"
 tracing-subscriber = { version = "0.2", features = ["env-filter"] }
+tree-sitter-ruby = "0.16"

generator/src/language.rs

@@ -1,7 +1,7 @@
 use std::path::PathBuf;
 
-pub struct Language {
+pub struct Language<'a> {
     pub name: String,
-    pub node_types_path: PathBuf,
+    pub node_types: &'a str,
     pub dbscheme_path: PathBuf,
 }

generator/src/main.rs

@@ -288,12 +288,12 @@ fn main() {
     // command line.
     let ruby = Language {
         name: "Ruby".to_string(),
-        node_types_path: PathBuf::from("tree-sitter-ruby/src/node-types.json"),
+        node_types: tree_sitter_ruby::NODE_TYPES,
         dbscheme_path: PathBuf::from("ruby.dbscheme"),
     };
-    match node_types::read_node_types(&ruby.node_types_path) {
+    match node_types::read_node_types_str(&ruby.node_types) {
         Err(e) => {
-            error!("Failed to read '{}': {}", ruby.node_types_path.display(), e);
+            error!("Failed to read node-types JSON for {}: {}", ruby.name, e);
             std::process::exit(1);
         }
         Ok(nodes) => {