From a6c47ee74023f6ef683988cabc8caa95406e3c99 Mon Sep 17 00:00:00 2001
From: David Sherret <dsherret@users.noreply.github.com>
Date: Fri, 5 May 2023 12:44:24 -0400
Subject: refactor(ext/node): combine `deno_node::Fs` with
 `deno_fs::FileSystem` (#18991)

---
 ext/fs/interface.rs | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'ext/fs/interface.rs')

diff --git a/ext/fs/interface.rs b/ext/fs/interface.rs
index 1847b5982..474089153 100644
--- a/ext/fs/interface.rs
+++ b/ext/fs/interface.rs
@@ -73,7 +73,7 @@ pub struct FsDirEntry {
 }
 
 #[async_trait::async_trait(?Send)]
-pub trait FileSystem: Send + Sync {
+pub trait FileSystem: std::fmt::Debug + Send + Sync {
   fn cwd(&self) -> FsResult<PathBuf>;
   fn tmp_dir(&self) -> FsResult<PathBuf>;
   fn chdir(&self, path: &Path) -> FsResult<()>;
@@ -225,4 +225,26 @@ pub trait FileSystem: Send + Sync {
     let buf = file.read_all_async().await?;
     Ok(buf)
   }
+
+  fn is_file(&self, path: &Path) -> bool {
+    self.stat_sync(path).map(|m| m.is_file).unwrap_or(false)
+  }
+
+  fn is_dir(&self, path: &Path) -> bool {
+    self
+      .stat_sync(path)
+      .map(|m| m.is_directory)
+      .unwrap_or(false)
+  }
+
+  fn exists(&self, path: &Path) -> bool {
+    self.stat_sync(path).is_ok()
+  }
+
+  fn read_to_string(&self, path: &Path) -> FsResult<String> {
+    let buf = self.read_file_sync(path)?;
+    String::from_utf8(buf).map_err(|err| {
+      std::io::Error::new(std::io::ErrorKind::InvalidData, err).into()
+    })
+  }
 }
-- 
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