deb: default to ephemeral context with local builds

src/deb/mod.rs

@@ -1,4 +1,5 @@
 mod cross;
+mod ephemeral;
 mod local;
 mod sbuild;
 
@@ -42,21 +43,13 @@ pub fn build_binary_package(
     let mode = if let Some(m) = mode {
         m
     } else {
-        // For cross-compilation, we use local with an ephemeral context
-        // created by the cross-compilation handler (see below)
-        if cross {
-            BuildMode::Local
-        } else {
-            // By default, we use sbuild
-            BuildMode::Sbuild
-        }
+        // By default, we use local build
+        BuildMode::Local
     };
 
-    // Specific case: native cross-compilation, we don't allow that
-    // instead this wraps to an automatic unshare chroot
-    // using an ephemeral context
-    let _guard = if cross && mode == BuildMode::Local {
-        Some(cross::EphemeralContextGuard::new(series)?)
+    // Create an ephemeral unshare context for all Local builds
+    let _guard = if mode == BuildMode::Local {
+        Some(ephemeral::EphemeralContextGuard::new(series)?)
     } else {
         None
     };