From d86e1b4f5e36f7e1c2d3dabccc58c26cceeaca82 Mon Sep 17 00:00:00 2001
From: ObserverOfTime <chronobserver@disroot.org>
Date: Thu, 25 Sep 2025 21:24:39 +0300
Subject: [PATCH] feat(bindings): generate zig fingerprint

---
 Cargo.lock                             |  1 +
 Cargo.toml                             |  1 +
 crates/cli/Cargo.toml                  |  1 +
 crates/cli/src/init.rs                 | 17 ++++++++++++++++-
 crates/cli/src/templates/build.zig.zon |  1 +
 5 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index c1e8905f..5cfb21de 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1909,6 +1909,7 @@ dependencies = [
  "clap",
  "clap_complete",
  "clap_complete_nushell",
+ "crc32fast",
  "ctor",
  "ctrlc",
  "dialoguer",
diff --git a/Cargo.toml b/Cargo.toml
index ba497668..4f6ef9a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -117,6 +117,7 @@ clap = { version = "4.5.45", features = [
 ] }
 clap_complete = "4.5.57"
 clap_complete_nushell = "4.5.8"
+crc32fast = "1.5.0"
 ctor = "0.2.9"
 ctrlc = { version = "3.5.0", features = ["termination"] }
 dialoguer = { version = "0.11.0", features = ["fuzzy-select"] }
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index b8ac8222..cebbacd3 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -42,6 +42,7 @@ bstr.workspace = true
 clap.workspace = true
 clap_complete.workspace = true
 clap_complete_nushell.workspace = true
+crc32fast.workspace = true
 ctor.workspace = true
 ctrlc.workspace = true
 dialoguer.workspace = true
diff --git a/crates/cli/src/init.rs b/crates/cli/src/init.rs
index 3af16c6e..53ab84f3 100644
--- a/crates/cli/src/init.rs
+++ b/crates/cli/src/init.rs
@@ -5,9 +5,11 @@ use std::{
 };
 
 use anyhow::{anyhow, Context, Result};
+use crc32fast::hash as crc32;
 use heck::{ToKebabCase, ToShoutySnakeCase, ToSnakeCase, ToUpperCamelCase};
 use indoc::{formatdoc, indoc};
 use log::warn;
+use rand::{thread_rng, Rng};
 use semver::Version;
 use serde::{Deserialize, Serialize};
 use serde_json::{Map, Value};
@@ -33,6 +35,7 @@ const PARSER_LICENSE_PLACEHOLDER: &str = "PARSER_LICENSE";
 const PARSER_URL_PLACEHOLDER: &str = "PARSER_URL";
 const PARSER_URL_STRIPPED_PLACEHOLDER: &str = "PARSER_URL_STRIPPED";
 const PARSER_VERSION_PLACEHOLDER: &str = "PARSER_VERSION";
+const PARSER_FINGERPRINT_PLACEHOLDER: &str = "PARSER_FINGERPRINT";
 
 const AUTHOR_NAME_PLACEHOLDER: &str = "PARSER_AUTHOR_NAME";
 const AUTHOR_EMAIL_PLACEHOLDER: &str = "PARSER_AUTHOR_EMAIL";
@@ -154,7 +157,7 @@ impl JsonConfigOpts {
                 authors: Some(vec![Author {
                     name: self.author,
                     email: self.email,
-                    url: self.url.map(|url| url.to_string()),
+                    url: self.url,
                 }]),
                 links: Some(Links {
                     repository: self.repository.unwrap_or_else(|| {
@@ -1153,6 +1156,18 @@ fn generate_file(
         }
     }
 
+    if filename == "build.zig.zon" {
+        let id = thread_rng().gen_range(1u32..0xFFFF_FFFFu32);
+        let checksum = crc32(format!("tree_sitter_{language_name}").as_bytes());
+        replacement = replacement.replace(
+            PARSER_FINGERPRINT_PLACEHOLDER,
+            #[cfg(target_endian = "little")]
+            &format!("0x{checksum:x}{id:x}"),
+            #[cfg(target_endian = "big")]
+            &format!("0x{id:x}{checksum:x}"),
+        );
+    }
+
     write_file(path, replacement)?;
     Ok(())
 }
diff --git a/crates/cli/src/templates/build.zig.zon b/crates/cli/src/templates/build.zig.zon
index ef084d23..0d542675 100644
--- a/crates/cli/src/templates/build.zig.zon
+++ b/crates/cli/src/templates/build.zig.zon
@@ -1,5 +1,6 @@
 .{
     .name = .tree_sitter_PARSER_NAME,
+    .fingerprint = PARSER_FINGERPRINT,
     .version = "PARSER_VERSION",
     .dependencies = .{
         .tree_sitter = .{