⚡ Support redox as tier3 target

cli/src/utils/os.rs

@@ -1,3 +1,9 @@
+#[cfg(target_os = "redox")]
+mod redox {
+    pub(crate) mod fs {
+        pub(crate) mod owner;
+    }
+}
 #[cfg(unix)]
 pub(crate) mod unix;
 #[cfg(windows)]

cli/src/utils/os/redox/fs/owner.rs

@@ -0,0 +1,47 @@
+use nix::unistd::{Gid, Uid};
+
+pub(crate) struct User(Uid);
+impl User {
+    #[inline]
+    pub(crate) fn from_uid(uid: Uid) -> Option<Self> {
+        Some(Self(uid))
+    }
+
+    #[inline]
+    pub(crate) fn from_name(_name: &str) -> Option<Self> {
+        None
+    }
+
+    #[inline]
+    pub(crate) fn name(&self) -> &str {
+        ""
+    }
+
+    #[inline]
+    pub(crate) fn as_raw(&self) -> u32 {
+        self.0.as_raw()
+    }
+}
+pub(crate) struct Group(Gid);
+
+impl Group {
+    #[inline]
+    pub(crate) fn from_gid(gid: Gid) -> Option<Self> {
+        Some(Self(gid))
+    }
+
+    #[inline]
+    pub(crate) fn from_name(_name: &str) -> Option<Self> {
+        None
+    }
+
+    #[inline]
+    pub(crate) fn name(&self) -> &str {
+        ""
+    }
+
+    #[inline]
+    pub(crate) fn as_raw(&self) -> u32 {
+        self.0.as_raw()
+    }
+}

cli/src/utils/os/unix/fs.rs

@@ -1,2 +1,5 @@
+#[cfg(not(target_os = "redox"))]
 pub(crate) mod owner;
+#[cfg(target_os = "redox")]
+pub(crate) use crate::utils::os::redox::fs::owner;
 pub(crate) mod xattrs;