fix(cli): actual Rust binding version in generated Cargo.toml

Cargo.lock

@@ -658,6 +658,15 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
+[[package]]
+name = "toml"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "tree-sitter"
 version = "0.19.5"
@@ -691,6 +700,7 @@ dependencies = [
  "smallbitvec",
  "tempfile",
  "tiny_http",
+ "toml",
  "tree-sitter",
  "tree-sitter-config",
  "tree-sitter-highlight",

cli/Cargo.toml

@@ -74,3 +74,6 @@ features = ["std"]
 [dev-dependencies]
 rand = "0.8"
 tempfile = "3"
+
+[build-dependencies]
+toml = "0.5"

cli/build.rs

@@ -9,6 +9,12 @@ fn main() {
     if wasm_files_present() {
         println!("cargo:rustc-cfg={}", "TREE_SITTER_EMBED_WASM_BINDING");
     }
+
+    let rust_binding_version = read_rust_binding_version();
+    println!(
+        "cargo:rustc-env={}={}",
+        "RUST_BINDING_VERSION", rust_binding_version
+    );
 }
 
 fn wasm_files_present() -> bool {
@@ -67,3 +73,14 @@ fn read_git_sha() -> Option<String> {
 
     None
 }
+
+fn read_rust_binding_version() -> String {
+    let path = "../lib/Cargo.toml";
+    let text = fs::read_to_string(path).unwrap();
+    let cargo_toml = toml::from_str::<toml::Value>(text.as_ref()).unwrap();
+    cargo_toml["package"]["version"]
+        .as_str()
+        .unwrap()
+        .trim_matches('"')
+        .to_string()
+}

cli/src/generate/binding_files.rs

@@ -13,6 +13,8 @@ const PACKAGE_JSON_TEMPLATE: &'static str = include_str!("./templates/package.js
 const PARSER_NAME_PLACEHOLDER: &'static str = "PARSER_NAME";
 const CLI_VERSION_PLACEHOLDER: &'static str = "CLI_VERSION";
 const CLI_VERSION: &'static str = env!("CARGO_PKG_VERSION");
+const RUST_BINDING_VERSION: &'static str = env!("RUST_BINDING_VERSION");
+const RUST_BINDING_VERSION_PLACEHOLDER: &'static str = "RUST_BINDING_VERSION";
 
 pub fn generate_binding_files(repo_path: &Path, language_name: &str) -> Result<()> {
     let bindings_dir = repo_path.join("bindings");
@@ -121,7 +123,8 @@ fn generate_file(path: &Path, template: &str, language_name: &str) -> Result<()>
         path,
         template
             .replace(PARSER_NAME_PLACEHOLDER, language_name)
-            .replace(CLI_VERSION_PLACEHOLDER, CLI_VERSION),
+            .replace(CLI_VERSION_PLACEHOLDER, CLI_VERSION)
+            .replace(RUST_BINDING_VERSION_PLACEHOLDER, RUST_BINDING_VERSION),
     )
 }
 

cli/src/generate/templates/cargo.toml

@@ -20,7 +20,7 @@ include = [
 path = "bindings/rust/lib.rs"
 
 [dependencies]
-tree-sitter = "0.19.3"
+tree-sitter = "~RUST_BINDING_VERSION"
 
 [build-dependencies]
 cc = "1.0"