From e9f58f5fd0b6402f02726a40b9d2ec3451fc39fc Mon Sep 17 00:00:00 2001
From: aiongg <aiongtaigi@gmail.com>
Date: Sat, 14 Nov 2026 04:37:22 +0000
Subject: [PATCH] Build: restore designcraft_format::write for recovery; render
 decodes without naming the image crate

(cherry picked from commit 078f5994c4c2f4fcbb7f1838cecae7b0a1ca195c)
---
 crates/format/src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/crates/format/src/lib.rs b/crates/format/src/lib.rs
index bcfacd976..a05a8baa7 100644
--- a/crates/format/src/lib.rs
+++ b/crates/format/src/lib.rs
@@ -36,6 +36,16 @@ pub fn save_with_preview(doc: &Document, preview: Option<&[u8]>) -> Result<Vec<u
     craft_designcraft_format::save(&compact, concat!("DesignCraft ", env!("CARGO_PKG_VERSION")), preview, &assets)
 }
 
+/// [`save_with_preview`] into `out`, in chunks, so a writer that stops on cancellation stops the
+/// write at its next chunk.
+pub fn write<W: std::io::Write>(out: &mut W, doc: &Document, preview: Option<&[u8]>) -> Result<(), FormatError> {
+    let bytes = save_with_preview(doc, preview)?;
+    for chunk in bytes.chunks(1 << 20) {
+        out.write_all(chunk).map_err(|e| FormatError::Io(e.to_string()))?;
+    }
+    Ok(())
+}
+
 /// Required native format version for a document. Kept for app-side compatibility; inference is
 /// performed by the shared codec over the serialized neutral document schema.
 #[cfg(test)]