fix release artifact packaging on linux

scripts/build-release-artifact.mjs

@@ -94,6 +94,11 @@ async function copyEntry(source, target) {
   const sourcePath = path.resolve(root, source);
   const targetPath = path.resolve(stagingDir, target);
   await fs.mkdir(path.dirname(targetPath), { recursive: true });
+  await fs.rm(targetPath, { recursive: true, force: true });
+  if (process.platform === 'linux') {
+    run('cp', ['-a', sourcePath, targetPath]);
+    return;
+  }
   await fs.cp(sourcePath, targetPath, { recursive: true, verbatimSymlinks: true });
 }
 
@@ -155,10 +160,12 @@ await fs.writeFile(path.join(stagingDir, 'RELEASE_MANIFEST.json'), `${JSON.strin
 await fs.mkdir(outDir, { recursive: true });
 const tarPath = path.join(outDir, `${releaseId}.tar.gz`);
 run('tar', ['-czf', tarPath, '-C', stagingDir, '.'], { stdio: 'inherit' });
-const files = await collectFiles(stagingDir);
+const fileCount = process.platform === 'linux'
+  ? Number(run('bash', ['-lc', `find ${JSON.stringify(stagingDir)} -type f | wc -l`]))
+  : (await collectFiles(stagingDir)).length;
 const artifactHash = await sha256(tarPath);
 await fs.writeFile(path.join(outDir, `${releaseId}.sha256`), `${artifactHash}  ${path.basename(tarPath)}\n`, 'utf8');
 
 console.log(`Release artifact created: ${tarPath}`);
 console.log(`SHA256: ${artifactHash}`);
-console.log(`Files staged: ${files.length}`);
+console.log(`Files staged: ${fileCount}`);