Implement read and stat for dir

2026-06-19 18:45:08 +02:00
parent b1f32372f7
commit 50cb21b9e5
3 changed files with 198 additions and 4 deletions
@@ -14,6 +14,15 @@ version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4388bee8683e3d04af747c73422af53102d2bd24d9eadb6cbc100baef4b43f8"

+[[package]]
+name = "block2"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdeb9d870516001442e364c5220d3574d2da8dc765554b4a617230d33fa58ef5"
+dependencies = [
+ "objc2",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.4"
@@ -26,6 +35,35 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"

+[[package]]
+name = "ctrlc"
+version = "3.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0b1fab2ae45819af2d0731d60f2afe17227ebb1a1538a236da84c93e9a60162"
+dependencies = [
+ "dispatch2",
+ "nix 0.31.3",
+ "windows-sys",
+]
+
+[[package]]
+name = "deranged"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7cd812cc2bc1d69d4764bd80df88b4317eaef9e773c75226407d9bc0876b211c"
+
+[[package]]
+name = "dispatch2"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0e367e4e7da84520dedcac1901e4da967309406d1e51017ae1abfb97adbd38"
+dependencies = [
+ "bitflags",
+ "block2",
+ "libc",
+ "objc2",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -42,7 +80,7 @@ dependencies = [
 "libc",
 "log",
 "memchr",
- "nix",
+ "nix 0.30.1",
 "num_enum",
 "page_size",
 "parking_lot",
@@ -108,7 +146,10 @@ dependencies = [
 name = "musicfs"
 version = "0.1.0"
 dependencies = [
+ "ctrlc",
 "fuser",
+ "libc",
+ "time",
 ]

 [[package]]
@@ -124,6 +165,24 @@ dependencies = [
 "memoffset",
 ]

+[[package]]
+name = "nix"
+version = "0.31.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf20d2fde8ff38632c426f1165ed7436270b44f199fc55284c38276f9db47c3d"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "cfg_aliases",
+ "libc",
+]
+
+[[package]]
+name = "num-conv"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "521739c6d2bac4aa25192232afe6841231376b2b26d4d9fae5ecf8ca5772e441"
+
 [[package]]
 name = "num_enum"
 version = "0.7.6"
@@ -146,6 +205,21 @@ dependencies = [
 "syn",
 ]

+[[package]]
+name = "objc2"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a12a8ed07aefc768292f076dc3ac8c48f3781c8f2d5851dd3d98950e8c5a89f"
+dependencies = [
+ "objc2-encode",
+]
+
+[[package]]
+name = "objc2-encode"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef25abbcd74fb2609453eb695bd2f860d389e457f67dc17cafc8b8cbc89d0c33"
+
 [[package]]
 name = "page_size"
 version = "0.6.0"
@@ -185,6 +259,12 @@ version = "0.3.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e"

+[[package]]
+name = "powerfmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
+
 [[package]]
 name = "proc-macro-crate"
 version = "3.5.0"
@@ -290,6 +370,25 @@ dependencies = [
 "unicode-ident",
 ]

+[[package]]
+name = "time"
+version = "0.3.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711a53c2d47bbd818258c498c8dbfe186a2526c631495cfe7e078567f86b8469"
+dependencies = [
+ "deranged",
+ "num-conv",
+ "powerfmt",
+ "serde_core",
+ "time-core",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e1c906769ad99c88eaa54e728060edef082f8e358ff32030cb7c7d315e81109"
+
 [[package]]
 name = "toml_datetime"
 version = "1.1.1+spec-1.1.0"
@@ -354,6 +453,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"

+[[package]]
+name = "windows-sys"
+version = "0.61.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "winnow"
 version = "1.0.3"
@@ -4,4 +4,7 @@ version = "0.1.0"
 edition = "2024"

 [dependencies]
+ctrlc = "3.5.2"
 fuser = "0.17.0"
+libc = "0.2.186"
+time = "0.3.49"
@@ -1,9 +1,75 @@
-use fuser::Filesystem;
+use fuser::{
+    Errno, FileAttr, FileType, Filesystem, INodeNo, ReplyAttr, ReplyData, ReplyDirectory,
+    ReplyEntry, Request,
+};
 use std::env;
+use std::path::Path;
+use std::sync::Arc;
+use std::sync::atomic::{AtomicBool, Ordering};
+use std::time::{Duration, SystemTime};

 struct JsonFilesystem;

-impl Filesystem for JsonFilesystem {}
+impl Filesystem for JsonFilesystem {
+    // For stat function like `stat /path/to/fuse`
+    fn getattr(
+        &self,
+        _req: &Request,
+        ino: fuser::INodeNo,
+        fh: Option<fuser::FileHandle>,
+        reply: ReplyAttr,
+    ) {
+        println!("getattr(ino={})", ino);
+
+        let ts = SystemTime::now();
+        let attr = FileAttr {
+            ino: INodeNo::ROOT,
+            size: 0,
+            blocks: 0,
+            atime: ts,
+            mtime: ts,
+            ctime: ts,
+            crtime: ts,
+            kind: FileType::Directory,
+            perm: 0o755,
+            nlink: 0,
+            uid: 0,
+            gid: 0,
+            rdev: 0,
+            blksize: 0,
+            flags: 0,
+        };
+
+        let ttl = Duration::new(1, 0);
+
+        if ino == INodeNo::ROOT {
+            reply.attr(&ttl, &attr);
+        } else {
+            reply.error(Errno::ENOSYS);
+        }
+    }
+
+    fn readdir(
+        &self,
+        _req: &Request,
+        ino: INodeNo,
+        fh: fuser::FileHandle,
+        offset: u64,
+        mut reply: ReplyDirectory,
+    ) {
+        println!("readdir(ino={}, fh={}, offset={})", ino, fh, offset);
+
+        if ino == INodeNo::ROOT {
+            if offset == 0 {
+                reply.add(INodeNo::ROOT, 0, FileType::Directory, &Path::new("."));
+                reply.add(INodeNo::ROOT, 1, FileType::Directory, &Path::new(".."));
+            }
+            reply.ok();
+        } else {
+            reply.error(Errno::ENOSYS);
+        }
+    }
+}

 fn main() {
    let mountpoint = match env::args().nth(1) {
@@ -13,6 +79,23 @@ fn main() {
            return;
        }
    };
+
+    let running = Arc::new(AtomicBool::new(true));
+    let r_clone = running.clone();
+
+    ctrlc::set_handler(move || {
+        println!("Ctrl+C received, shutting down");
+        r_clone.store(false, Ordering::SeqCst);
+    })
+    .expect("Error setting Ctrl+C handler");
+
    let cfg = fuser::Config::default();
-    let _ = fuser::mount2(JsonFilesystem, &mountpoint, &cfg);
+    let session = fuser::spawn_mount2(JsonFilesystem, &mountpoint, &cfg);
+
+    while running.load(Ordering::SeqCst) {
+        std::thread::sleep(Duration::from_millis(100));
+    }
+
+    println!("Unmounting");
+    drop(session);
 }