sort: exclude ctrlc on WASI to support wasm32-wasip1 target

Cargo.toml

@@ -210,6 +210,7 @@ feat_wasm = [
   "shred",
   "shuf",
   "sleep",
+  "sort",
   "sum",
   "tee",
   "true",

src/uu/sort/Cargo.toml

@@ -46,7 +46,7 @@ uucore = { workspace = true, features = [
 fluent = { workspace = true }
 foldhash = { workspace = true }
 
-[target.'cfg(not(target_os = "redox"))'.dependencies]
+[target.'cfg(not(any(target_os = "redox", target_os = "wasi")))'.dependencies]
 ctrlc = { workspace = true }
 
 [target.'cfg(unix)'.dependencies]

src/uu/sort/src/tmp_dir.rs

@@ -54,7 +54,7 @@ fn should_install_signal_handler() -> bool {
     open_fds.saturating_add(CTRL_C_FDS + RESERVED_FOR_MERGE) <= limit
 }
 
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "wasi")))]
 fn ensure_signal_handler_installed(state: Arc<Mutex<HandlerRegistration>>) -> UResult<()> {
     // This shared state must originate from `HANDLER_STATE` so the handler always sees
     // the current lock/path pair and can clean up the active temp directory on SIGINT.
@@ -104,7 +104,7 @@ fn ensure_signal_handler_installed(state: Arc<Mutex<HandlerRegistration>>) -> UR
     Ok(())
 }
 
-#[cfg(target_os = "redox")]
+#[cfg(any(target_os = "redox", target_os = "wasi"))]
 fn ensure_signal_handler_installed(_state: Arc<Mutex<HandlerRegistration>>) -> UResult<()> {
     Ok(())
 }

src/uucore/src/lib/features/fs.rs

@@ -45,6 +45,7 @@ macro_rules! has {
 pub struct FileInformation(
     #[cfg(unix)] nix::sys::stat::FileStat,
     #[cfg(windows)] winapi_util::file::Information,
+    #[cfg(target_os = "wasi")] std::fs::Metadata,
 );
 
 impl FileInformation {
@@ -91,6 +92,15 @@ impl FileInformation {
             let file = open_options.read(true).open(path.as_ref())?;
             Self::from_file(&file)
         }
+        #[cfg(target_os = "wasi")]
+        {
+            let metadata = if dereference {
+                fs::metadata(path.as_ref())
+            } else {
+                fs::symlink_metadata(path.as_ref())
+            }?;
+            Ok(Self(metadata))
+        }
     }
 
     pub fn file_size(&self) -> u64 {
@@ -103,6 +113,10 @@ impl FileInformation {
         {
             self.0.file_size()
         }
+        #[cfg(target_os = "wasi")]
+        {
+            self.0.len()
+        }
     }
 
     #[cfg(windows)]
@@ -153,6 +167,8 @@ impl FileInformation {
         return self.0.st_nlink.try_into().unwrap();
         #[cfg(windows)]
         return self.0.number_of_links();
+        #[cfg(target_os = "wasi")]
+        return 1;
     }
 
     #[cfg(unix)]
@@ -180,6 +196,13 @@ impl PartialEq for FileInformation {
     }
 }
 
+#[cfg(target_os = "wasi")]
+impl PartialEq for FileInformation {
+    fn eq(&self, _other: &Self) -> bool {
+        false
+    }
+}
+
 impl Eq for FileInformation {}
 
 impl Hash for FileInformation {
@@ -194,6 +217,11 @@ impl Hash for FileInformation {
             self.0.volume_serial_number().hash(state);
             self.0.file_index().hash(state);
         }
+        #[cfg(target_os = "wasi")]
+        {
+            self.0.len().hash(state);
+            self.0.file_type().is_dir().hash(state);
+        }
     }
 }
 
@@ -769,7 +797,7 @@ pub fn is_stdin_directory(stdin: &Stdin) -> bool {
         mode & S_IFMT == S_IFDIR
     }
 
-    #[cfg(windows)]
+    #[cfg(target_os = "windows")]
     {
         use std::os::windows::io::AsRawHandle;
         let handle = stdin.as_raw_handle();
@@ -778,11 +806,17 @@ pub fn is_stdin_directory(stdin: &Stdin) -> bool {
         }
         false
     }
+
+    #[cfg(target_os = "wasi")]
+    {
+        let _ = stdin;
+        false
+    }
 }
 
 pub mod sane_blksize {
 
-    #[cfg(not(target_os = "windows"))]
+    #[cfg(unix)]
     use std::os::unix::fs::MetadataExt;
     use std::{fs::metadata, path::Path};
 
@@ -809,12 +843,12 @@ pub mod sane_blksize {
         #[cfg(unix)] metadata: &std::fs::Metadata,
         #[cfg(not(unix))] _: &std::fs::Metadata,
     ) -> u64 {
-        #[cfg(not(target_os = "windows"))]
+        #[cfg(unix)]
         {
             sane_blksize(metadata.blksize())
         }
 
-        #[cfg(target_os = "windows")]
+        #[cfg(not(unix))]
         {
             DEFAULT
         }

src/uucore/src/lib/mods/io.rs

@@ -74,7 +74,14 @@ impl OwnedFileDescriptorOrHandle {
 
     /// instantiates a corresponding `Stdio`
     pub fn into_stdio(self) -> Stdio {
-        Stdio::from(self.fx)
+        #[cfg(not(target_os = "wasi"))]
+        {
+            Stdio::from(self.fx)
+        }
+        #[cfg(target_os = "wasi")]
+        {
+            Stdio::from(File::from(self.fx))
+        }
     }
 
     /// clones self. useful when needing another