From df5ce01caed378a01bff8859d5c9dc0949512f8e Mon Sep 17 00:00:00 2001
From: Buffrr <contact@buffrr.dev>
Date: Sat, 25 Apr 2026 19:16:49 +0200
Subject: [PATCH] fix(checkpoint): preserve write_integrity arity for semver

---
 checkpoint/src/builder.rs |  2 +-
 checkpoint/src/lib.rs     | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/checkpoint/src/builder.rs b/checkpoint/src/builder.rs
index 51d9da1..e533851 100644
--- a/checkpoint/src/builder.rs
+++ b/checkpoint/src/builder.rs
@@ -85,7 +85,7 @@ fn main() -> anyhow::Result<()> {
     eprintln!("SHA-256: {}", hex::encode(digest));
 
     if let Some(path) = args.integrity_out.as_deref() {
-        spaces_checkpoint::write_integrity(path, height, &block_hash, &digest)?;
+        spaces_checkpoint::write_integrity_to(path, height, &block_hash, &digest)?;
         eprintln!("Updated {}", path.display());
     }
 
diff --git a/checkpoint/src/lib.rs b/checkpoint/src/lib.rs
index c8fdd2c..725c982 100644
--- a/checkpoint/src/lib.rs
+++ b/checkpoint/src/lib.rs
@@ -302,9 +302,21 @@ pub fn checkpoint() -> super::Checkpoint {{
     )
 }
 
+/// Write the checkpoint constant to `checkpoint/src/integrity.rs` relative to
+/// the current working directory. Must be run from the workspace root.
+#[cfg(feature = "cli")]
+pub fn write_integrity(height: u32, block_hash: &str, digest: &[u8; 32]) -> anyhow::Result<()> {
+    write_integrity_to(
+        Path::new("checkpoint/src/integrity.rs"),
+        height,
+        block_hash,
+        digest,
+    )
+}
+
 /// Write the checkpoint constant to a Rust source file at `path`.
 #[cfg(feature = "cli")]
-pub fn write_integrity(
+pub fn write_integrity_to(
     path: &Path,
     height: u32,
     block_hash: &str,