feat: Use custom version of tree-sitter-rust

Not much development is happening in that plugin.

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "tree-sitter-rust"]
+	path = tree-sitter-rust
+	url = git@github.com:sclu1034/tree-sitter-rust.git

Cargo.lock

@@ -1086,8 +1086,6 @@ dependencies = [
 [[package]]
 name = "tree-sitter-rust"
 version = "0.20.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "797842733e252dc11ae5d403a18060bf337b822fc2ae5ddfaa6ff4d9cc20bda6"
 dependencies = [
  "cc",
  "tree-sitter",

Cargo.toml

@@ -1,6 +1,5 @@
 [package]
 name = "kak-highlight"
-author = "Lucas Schwiderski"
 description = "Tree-sitter-based highlighting for Kakoune"
 version = "1.0.0"
 edition = "2021"
@@ -19,7 +18,7 @@ tracing-error = "0.2.0"
 tracing-subscriber = { version = "0.3.16", features = ["env-filter"] }
 tree-sitter = "0.20.10"
 tree-sitter-highlight = "0.20.1"
-tree-sitter-rust = "0.20.3"
+tree-sitter-rust = { path = "./tree-sitter-rust", version = "*" }
 
 [dev-dependencies]
 criterion = "0.4.0"

src/daemon/worker.rs

@@ -241,7 +241,13 @@ pub fn highlight_content(
     }
 
     let highlights = highlighter
-        .highlight(highlight_config, content, None, |_| None)
+        .highlight(highlight_config, content, None, |lang| {
+            if lang == "rust" {
+                Some(highlight_config)
+            } else {
+                None
+            }
+        })
         .wrap_err("Failed to highlight content")?;
 
     let mut stack = VecDeque::with_capacity(64);

tree-sitter-rust

@@ -0,0 +1 @@
+Subproject commit 5dcc1e3df8cdce5365b65dac4692e350a2c396e5