fix(packager): crash when packaging empty file on macOS (#194)

.changes/ignore-empty-files.md

@@ -0,0 +1,5 @@
+---
+"cargo-packager": patch
+---
+
+Fixes a crash when packaging `.app` if an empty file is included in the bundle.

bindings/packager/nodejs/index.js

@@ -237,6 +237,49 @@ switch (platform) {
           loadError = e
         }
         break
+      case 'riscv64':
+        if (isMusl()) {
+          localFileExisted = existsSync(
+            join(__dirname, 'packager.linux-riscv64-musl.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./packager.linux-riscv64-musl.node')
+            } else {
+              nativeBinding = require('@crabnebula/packager-linux-riscv64-musl')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        } else {
+          localFileExisted = existsSync(
+            join(__dirname, 'packager.linux-riscv64-gnu.node')
+          )
+          try {
+            if (localFileExisted) {
+              nativeBinding = require('./packager.linux-riscv64-gnu.node')
+            } else {
+              nativeBinding = require('@crabnebula/packager-linux-riscv64-gnu')
+            }
+          } catch (e) {
+            loadError = e
+          }
+        }
+        break
+      case 's390x':
+        localFileExisted = existsSync(
+          join(__dirname, 'packager.linux-s390x-gnu.node')
+        )
+        try {
+          if (localFileExisted) {
+            nativeBinding = require('./packager.linux-s390x-gnu.node')
+          } else {
+            nativeBinding = require('@crabnebula/packager-linux-s390x-gnu')
+          }
+        } catch (e) {
+          loadError = e
+        }
+        break
       default:
         throw new Error(`Unsupported architecture on Linux: ${arch}`)
     }

crates/packager/src/package/app/mod.rs

@@ -99,7 +99,8 @@ pub(crate) fn package(ctx: &Context) -> crate::Result<Vec<PathBuf>> {
             }
         };
 
-        if !metadata.is_file() {
+        // ignore folders and files that do not include at least the header size
+        if !metadata.is_file() || metadata.len() < 4 {
             continue;
         }