directory back up (parent) button + drag entry into parent to move

backend/src/lib/outbound/file_system.rs

@@ -15,8 +15,8 @@ use crate::{
         models::{
             file::{
                 AbsoluteFilePath, CatError, CatRequest, File, FileMimeType, FileName, FilePath,
-                FileStream, FileType, LsError, LsRequest, MkdirError, MkdirRequest, MvError,
-                MvRequest, RelativeFilePath, RmError, RmRequest, SaveError, SaveRequest,
+                FileStream, FileType, LsError, LsRequest, LsResponse, MkdirError, MkdirRequest,
+                MvError, MvRequest, RelativeFilePath, RmError, RmRequest, SaveError, SaveRequest,
                 SaveResponse, TouchError, TouchRequest,
             },
             warren::UploadFileStream,
@@ -75,13 +75,38 @@ impl FileSystem {
         self.base_directory.join(&path.as_relative())
     }
 
-    async fn get_all_files(&self, absolute_path: &AbsoluteFilePath) -> anyhow::Result<Vec<File>> {
-        let directory_path = self.get_target_path(absolute_path);
-
-        let mut dir = fs::read_dir(&directory_path).await?;
+    async fn get_all_files(
+        &self,
+        absolute_path: &AbsoluteFilePath,
+        include_parent: bool,
+    ) -> anyhow::Result<LsResponse> {
+        let dir_path = self.get_target_path(absolute_path).as_ref().to_path_buf();
 
         let mut files = Vec::new();
 
+        let parent = if include_parent {
+            let dir_name = FileName::new(
+                &dir_path
+                    .file_name()
+                    .context("Failed to get directory name")?
+                    .to_owned()
+                    .into_string()
+                    .ok()
+                    .context("Failed to get directory name")?,
+            )?;
+
+            Some(File::new(
+                dir_name,
+                FileType::Directory,
+                None,
+                get_btime(&dir_path),
+            ))
+        } else {
+            None
+        };
+
+        let mut dir = fs::read_dir(&dir_path).await?;
+
         while let Ok(Some(entry)) = dir.next_entry().await {
             let name = entry
                 .file_name()
@@ -100,18 +125,7 @@ impl FileSystem {
                 }
             };
 
-            // TODO: Use `DirEntry::metadata` once `target=x86_64-unknown-linux-musl` updates from musl 1.2.3 to 1.2.5
-            // https://github.com/rust-lang/rust/pull/142682
-            let created_at = unsafe {
-                statx(
-                    std::os::fd::BorrowedFd::borrow_raw(-100),
-                    entry.path(),
-                    rustix::fs::AtFlags::empty(),
-                    rustix::fs::StatxFlags::BTIME,
-                )
-            }
-            .ok()
-            .map(|statx| statx.stx_btime.tv_sec as u64);
+            let created_at = get_btime(entry.path());
 
             let mime_type = match file_type {
                 FileType::File => FileMimeType::from_name(&name),
@@ -126,7 +140,7 @@ impl FileSystem {
             ));
         }
 
-        Ok(files)
+        Ok(LsResponse::new(files, parent))
     }
 
     /// Actually created a directory in the underlying file system
@@ -233,13 +247,16 @@ impl FileSystem {
 }
 
 impl FileSystemRepository for FileSystem {
-    async fn ls(&self, request: LsRequest) -> Result<Vec<File>, LsError> {
-        let files = self.get_all_files(request.path()).await.map_err(|err| {
-            anyhow!(err).context(format!(
-                "Failed to get the files at path: {}",
-                request.path()
-            ))
-        })?;
+    async fn ls(&self, request: LsRequest) -> Result<LsResponse, LsError> {
+        let files = self
+            .get_all_files(request.path(), request.include_parent())
+            .await
+            .map_err(|err| {
+                anyhow!(err).context(format!(
+                    "Failed to get the files at path: {}",
+                    request.path()
+                ))
+            })?;
 
         Ok(files)
     }
@@ -297,3 +314,21 @@ impl FileSystemRepository for FileSystem {
         Ok(self.save(&path, &mut stream).await.map(SaveResponse::new)?)
     }
 }
+
+// TODO: Use `DirEntry::metadata` once `target=x86_64-unknown-linux-musl` updates from musl 1.2.3 to 1.2.5
+// https://github.com/rust-lang/rust/pull/142682
+fn get_btime<P>(path: P) -> Option<u64>
+where
+    P: rustix::path::Arg,
+{
+    unsafe {
+        statx(
+            std::os::fd::BorrowedFd::borrow_raw(-100),
+            path,
+            rustix::fs::AtFlags::empty(),
+            rustix::fs::StatxFlags::BTIME,
+        )
+    }
+    .ok()
+    .map(|statx| statx.stx_btime.tv_sec as u64)
+}