feat: Decode com.apple.ResourceFork extended attributes

Cargo.lock

@@ -247,6 +247,21 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
+[[package]]
+name = "crc"
+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86ec7a15cbe22e59248fc7eadb1907dab5ba09372595da4d73dd805ed4417dfe"
+dependencies = [
+ "crc-catalog",
+]
+
+[[package]]
+name = "crc-catalog"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
+
 [[package]]
 name = "criterion"
 version = "0.5.1"
@@ -397,6 +412,7 @@ dependencies = [
  "libc",
  "locale",
  "log",
+ "macbinary",
  "natord",
  "num_cpus",
  "number_prefix",
@@ -654,6 +670,19 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "macbinary"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f3b20f06e85c883de160086c2e2b45524ff19888271eccd593c8956d1fc1687"
+dependencies = [
+ "crc",
+ "serde",
+ "serde-wasm-bindgen",
+ "serde_bytes",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "matches"
 version = "0.1.8"
@@ -1061,6 +1090,26 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-wasm-bindgen"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3b143e2833c57ab9ad3ea280d21fd34e285a42837aeb0ee301f4f41890fa00e"
+dependencies = [
+ "js-sys",
+ "serde",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "serde_bytes"
+version = "0.11.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab33ec92f677585af6d88c65593ae2375adde54efdbf16d597f2cbc7a6d368ff"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.188"

Cargo.toml

@@ -109,6 +109,9 @@ windows-sys = { version = "0.52.0", features = [
   "Win32_Foundation",
 ] }
 
+[target.'cfg(target_os = "macos")'.dependencies]
+macbinary = { version = "0.2.1" }
+
 [build-dependencies]
 chrono = { version = "0.4.31", default-features = false, features = ["clock"] }
 

src/fs/feature/xattr.rs

@@ -580,6 +580,10 @@ const ATTRIBUTE_DISPLAYS: &[AttributeDisplay] = &[
         attribute: "com.apple.macl",
         display: display_macl,
     },
+    AttributeDisplay {
+        attribute: "com.apple.ResourceFork",
+        display: display_resource_fork,
+    },
 ];
 
 #[cfg(not(target_os = "macos"))]
@@ -659,6 +663,31 @@ fn display_macl(attribute: &Attribute) -> Option<String> {
         })
 }
 
+#[cfg(target_os = "macos")]
+fn display_resource_fork(attribute: &Attribute) -> Option<String> {
+    attribute.value.as_ref().and_then(|v| {
+        let rsrc = macbinary::ResourceFork::new(v).ok()?;
+        let mut resources = Vec::new();
+        for item in rsrc.resource_types() {
+            resources.extend(rsrc.resources(item).map(|resource| match resource.name() {
+                None => format!(
+                    r#"{{"type": {:?}, "id": {}, "length": {}}}"#,
+                    item.resource_type(),
+                    resource.id(),
+                    resource.data().len()
+                ),
+                Some(name) => format!(
+                    r#"{{"type": {:?}, "name": {name:?}, "id": {}, "length": {}}}"#,
+                    item.resource_type(),
+                    resource.id(),
+                    resource.data().len()
+                ),
+            }));
+        }
+        (!resources.is_empty()).then(|| format!("[{}]", resources.join(", ")))
+    })
+}
+
 // plist::XmlWriter takes the writer instead of borrowing it.  This is a
 // wrapper around a borrowed vector that just forwards the Write trait
 // calls to the borrowed vector.