feat: new external and removable fields in the fs.partitions() API (#2343)

yazi-ffi/src/cf_dict.rs

@@ -27,6 +27,12 @@ impl CFDict {
 		Ok(value)
 	}
 
+	pub fn bool(&self, key: &str) -> Result<bool> {
+		let value = self.value(key)?;
+		#[allow(unexpected_cfgs)]
+		Ok(unsafe { msg_send![value as *const Object, boolValue] })
+	}
+
 	pub fn integer(&self, key: &str) -> Result<i64> {
 		let value = self.value(key)?;
 		#[allow(unexpected_cfgs)]

yazi-fs/src/mounts/linux.rs

@@ -59,6 +59,21 @@ impl Partitions {
 		});
 	}
 
+	fn partitions() -> Result<HashSet<String>> {
+		let mut set = HashSet::new();
+		let s = std::fs::read_to_string("/proc/partitions")?;
+		for line in s.lines().skip(2) {
+			let mut it = line.split_whitespace();
+			let Some(Ok(_major)) = it.next().map(|s| s.parse::<u16>()) else { continue };
+			let Some(Ok(_minor)) = it.next().map(|s| s.parse::<u16>()) else { continue };
+			let Some(Ok(_blocks)) = it.next().map(|s| s.parse::<u32>()) else { continue };
+			if let Some(name) = it.next() {
+				set.insert(Self::unmangle_octal(name).into_owned());
+			}
+		}
+		Ok(set)
+	}
+
 	async fn update(me: Locked) {
 		_ = tokio::task::spawn_blocking(move || {
 			let mut guard = me.write();
@@ -75,11 +90,24 @@ impl Partitions {
 		{
 			let set = &self.linux_cache;
 			let mut set: HashSet<&OsStr> = set.iter().map(AsRef::as_ref).collect();
-			mounts.iter().filter_map(|p| p.dev_name()).for_each(|s| _ = set.remove(s));
+			mounts.iter().filter_map(|p| p.dev_name(true)).for_each(|s| _ = set.remove(s));
 			mounts.extend(set.into_iter().map(Partition::new));
 			mounts.sort_unstable_by(|a, b| natsort(a.src.as_bytes(), b.src.as_bytes(), false));
 		};
 
+		let mut removable: HashMap<OsString, Option<bool>> =
+			mounts.iter().filter_map(|p| p.dev_name(false)).map(|s| (s.to_owned(), None)).collect();
+		for (s, b) in &mut removable {
+			match std::fs::read(format!("/sys/block/{}/removable", s.to_string_lossy()))
+				.unwrap_or_default()
+				.trim_ascii()
+			{
+				b"0" => *b = Some(false),
+				b"1" => *b = Some(true),
+				_ => (),
+			}
+		}
+
 		let labels = Self::labels();
 		for mount in &mut mounts {
 			if !mount.src.as_bytes().starts_with(b"/dev/") {
@@ -88,6 +116,8 @@ impl Partitions {
 			if let Ok(meta) = std::fs::metadata(&mount.src) {
 				mount.rdev = Some(meta.rdev() as _);
 				mount.label = labels.get(&(meta.dev(), meta.ino())).cloned();
+				// TODO: mount.external
+				mount.removable = mount.dev_name(false).and_then(|s| removable.get(s).copied()).flatten();
 			}
 		}
 		Ok(mounts)
@@ -111,21 +141,6 @@ impl Partitions {
 		Ok(vec)
 	}
 
-	fn partitions() -> Result<HashSet<String>> {
-		let mut set = HashSet::new();
-		let s = std::fs::read_to_string("/proc/partitions")?;
-		for line in s.lines().skip(2) {
-			let mut it = line.split_whitespace();
-			let Some(Ok(_major)) = it.next().map(|s| s.parse::<u16>()) else { continue };
-			let Some(Ok(_minor)) = it.next().map(|s| s.parse::<u16>()) else { continue };
-			let Some(Ok(_blocks)) = it.next().map(|s| s.parse::<u32>()) else { continue };
-			if let Some(name) = it.next() {
-				set.insert(Self::unmangle_octal(name).into_owned());
-			}
-		}
-		Ok(set)
-	}
-
 	fn labels() -> HashMap<(u64, u64), OsString> {
 		let mut map = HashMap::new();
 		let Ok(it) = std::fs::read_dir("/dev/disk/by-label") else {

yazi-fs/src/mounts/macos.rs

@@ -115,6 +115,8 @@ impl Partitions {
 				fstype: dict.os_string("DAVolumeKind").ok(),
 				label: dict.os_string("DAVolumeName").ok(),
 				capacity: dict.integer("DAMediaSize").unwrap_or_default() as u64,
+				external: dict.bool("DADeviceInternal").ok().map(|b| !b),
+				removable: dict.bool("DAMediaRemovable").ok(),
 				..partition
 			});
 		}

yazi-fs/src/mounts/partition.rs

@@ -2,13 +2,15 @@ use std::{ffi::OsString, path::PathBuf};
 
 #[derive(Debug, Default)]
 pub struct Partition {
-	pub src:      OsString,
-	pub dist:     Option<PathBuf>,
+	pub src:       OsString,
+	pub dist:      Option<PathBuf>,
 	#[cfg(unix)]
-	pub rdev:     Option<libc::dev_t>,
-	pub label:    Option<OsString>,
-	pub fstype:   Option<OsString>,
-	pub capacity: u64,
+	pub rdev:      Option<libc::dev_t>,
+	pub label:     Option<OsString>,
+	pub fstype:    Option<OsString>,
+	pub capacity:  u64,
+	pub external:  Option<bool>,
+	pub removable: Option<bool>,
 }
 
 impl Partition {
@@ -44,7 +46,24 @@ impl Partition {
 
 	#[inline]
 	#[cfg(target_os = "linux")]
-	pub(super) fn dev_name(&self) -> Option<&std::ffi::OsStr> {
-		std::path::Path::new(&self.src).strip_prefix("/dev/").ok().map(|p| p.as_os_str())
+	pub(super) fn dev_name(&self, full: bool) -> Option<&std::ffi::OsStr> {
+		use std::os::unix::ffi::OsStrExt;
+
+		let s = std::path::Path::new(&self.src).strip_prefix("/dev/").ok()?.as_os_str();
+		if full {
+			return Some(s);
+		}
+
+		let b = s.as_bytes();
+		if b.len() < 3 {
+			None
+		} else if b.starts_with(b"sd") || b.starts_with(b"hd") || b.starts_with(b"vd") {
+			Some(std::ffi::OsStr::from_bytes(&b[..3]))
+		} else if b.starts_with(b"nvme") || b.starts_with(b"mmcblk") {
+			let n = b.iter().position(|&b| b == b'p').unwrap_or(b.len());
+			Some(std::ffi::OsStr::from_bytes(&b[..n]))
+		} else {
+			None
+		}
 	}
 }

yazi-plugin/src/fs/fs.rs

@@ -162,6 +162,8 @@ fn partitions(lua: &Lua) -> mlua::Result<Function> {
 					("dist", p.dist.clone().into_lua(&lua)?),
 					("label", p.label.clone().into_lua(&lua)?),
 					("fstype", p.fstype.clone().into_lua(&lua)?),
+					("external", p.external.into_lua(&lua)?),
+					("removable", p.removable.into_lua(&lua)?),
 				])
 			})
 			.collect::<mlua::Result<Vec<Table>>>()