1 files changed, 310 insertions, 0 deletions
diff --git a/vendor/fs-err/src/file.rs b/vendor/fs-err/src/file.rs
new file mode 100644
index 000000000..a9c8988e5
--- /dev/null
+++ b/vendor/fs-err/src/file.rs
@@ -0,0 +1,310 @@
+use std::fs;
+use std::io::{self, Read, Seek, Write};
+use std::path::{Path, PathBuf};
+
+use crate::errors::{Error, ErrorKind};
+
+/// Wrapper around [`std::fs::File`][std::fs::File] which adds more helpful
+/// information to all errors.
+///
+/// [std::fs::File]: https://doc.rust-lang.org/stable/std/fs/struct.File.html
+#[derive(Debug)]
+pub struct File {
+    file: fs::File,
+    path: PathBuf,
+}
+
+// Opens a std File and returns it or an error generator which only needs the path to produce the error.
+// Exists for the `crate::read*` functions so they don't unconditionally build a PathBuf.
+pub(crate) fn open(path: &Path) -> Result<std::fs::File, impl FnOnce(PathBuf) -> io::Error> {
+    fs::File::open(&path).map_err(|err| |path| Error::new(err, ErrorKind::OpenFile, path))
+}
+
+// like `open()` but for `crate::write`
+pub(crate) fn create(path: &Path) -> Result<std::fs::File, impl FnOnce(PathBuf) -> io::Error> {
+    fs::File::create(&path).map_err(|err| |path| Error::new(err, ErrorKind::CreateFile, path))
+}
+
+/// Wrappers for methods from [`std::fs::File`][std::fs::File].
+///
+/// [std::fs::File]: https://doc.rust-lang.org/stable/std/fs/struct.File.html
+impl File {
+    /// Wrapper for [`File::open`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.open).
+    pub fn open<P>(path: P) -> Result<Self, io::Error>
+    where
+        P: Into<PathBuf>,
+    {
+        let path = path.into();
+        match open(&path) {
+            Ok(file) => Ok(File::from_parts(file, path)),
+            Err(err_gen) => Err(err_gen(path)),
+        }
+    }
+
+    /// Wrapper for [`File::create`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.create).
+    pub fn create<P>(path: P) -> Result<Self, io::Error>
+    where
+        P: Into<PathBuf>,
+    {
+        let path = path.into();
+        match create(&path) {
+            Ok(file) => Ok(File::from_parts(file, path)),
+            Err(err_gen) => Err(err_gen(path)),
+        }
+    }
+
+    /// Wrapper for [`OpenOptions::open`](https://doc.rust-lang.org/stable/std/fs/struct.OpenOptions.html#method.open).
+    ///
+    /// This takes [`&std::fs::OpenOptions`](https://doc.rust-lang.org/stable/std/fs/struct.OpenOptions.html),
+    /// not [`crate::OpenOptions`].
+    #[deprecated = "use fs_err::OpenOptions::open instead"]
+    pub fn from_options<P>(path: P, options: &fs::OpenOptions) -> Result<Self, io::Error>
+    where
+        P: Into<PathBuf>,
+    {
+        let path = path.into();
+        match options.open(&path) {
+            Ok(file) => Ok(File::from_parts(file, path)),
+            Err(source) => Err(Error::new(source, ErrorKind::OpenFile, path)),
+        }
+    }
+
+    /// Wrapper for [`File::sync_all`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.sync_all).
+    pub fn sync_all(&self) -> Result<(), io::Error> {
+        self.file
+            .sync_all()
+            .map_err(|source| self.error(source, ErrorKind::SyncFile))
+    }
+
+    /// Wrapper for [`File::sync_data`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.sync_data).
+    pub fn sync_data(&self) -> Result<(), io::Error> {
+        self.file
+            .sync_data()
+            .map_err(|source| self.error(source, ErrorKind::SyncFile))
+    }
+
+    /// Wrapper for [`File::set_len`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.set_len).
+    pub fn set_len(&self, size: u64) -> Result<(), io::Error> {
+        self.file
+            .set_len(size)
+            .map_err(|source| self.error(source, ErrorKind::SetLen))
+    }
+
+    /// Wrapper for [`File::metadata`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.metadata).
+    pub fn metadata(&self) -> Result<fs::Metadata, io::Error> {
+        self.file
+            .metadata()
+            .map_err(|source| self.error(source, ErrorKind::Metadata))
+    }
+
+    /// Wrapper for [`File::try_clone`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_clone).
+    pub fn try_clone(&self) -> Result<Self, io::Error> {
+        self.file
+            .try_clone()
+            .map(|file| File {
+                file,
+                path: self.path.clone(),
+            })
+            .map_err(|source| self.error(source, ErrorKind::Clone))
+    }
+
+    /// Wrapper for [`File::set_permissions`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.set_permissions).
+    pub fn set_permissions(&self, perm: fs::Permissions) -> Result<(), io::Error> {
+        self.file
+            .set_permissions(perm)
+            .map_err(|source| self.error(source, ErrorKind::SetPermissions))
+    }
+
+    /// Creates a [`File`](struct.File.html) from a raw file and its path.
+    pub fn from_parts<P>(file: fs::File, path: P) -> Self
+    where
+        P: Into<PathBuf>,
+    {
+        File {
+            file,
+            path: path.into(),
+        }
+    }
+}
+
+/// Methods added by fs-err that are not available on
+/// [`std::fs::File`][std::fs::File].
+///
+/// [std::fs::File]: https://doc.rust-lang.org/stable/std/fs/struct.File.html
+impl File {
+    /// Returns a reference to the underlying [`std::fs::File`][std::fs::File].
+    ///
+    /// [std::fs::File]: https://doc.rust-lang.org/stable/std/fs/struct.File.html
+    pub fn file(&self) -> &fs::File {
+        &self.file
+    }
+
+    /// Returns a reference to the path that this file was created with.
+    pub fn path(&self) -> &Path {
+        &self.path
+    }
+
+    /// Wrap the error in information specific to this `File` object.
+    fn error(&self, source: io::Error, kind: ErrorKind) -> io::Error {
+        Error::new(source, kind, &self.path)
+    }
+}
+
+impl Read for File {
+    fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+        self.file
+            .read(buf)
+            .map_err(|source| self.error(source, ErrorKind::Read))
+    }
+
+    fn read_vectored(&mut self, bufs: &mut [std::io::IoSliceMut<'_>]) -> std::io::Result<usize> {
+        self.file
+            .read_vectored(bufs)
+            .map_err(|source| self.error(source, ErrorKind::Read))
+    }
+}
+
+impl<'a> Read for &'a File {
+    fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+        (&(**self).file)
+            .read(buf)
+            .map_err(|source| self.error(source, ErrorKind::Read))
+    }
+
+    fn read_vectored(&mut self, bufs: &mut [std::io::IoSliceMut<'_>]) -> std::io::Result<usize> {
+        (&(**self).file)
+            .read_vectored(bufs)
+            .map_err(|source| self.error(source, ErrorKind::Read))
+    }
+}
+
+impl Seek for File {
+    fn seek(&mut self, pos: std::io::SeekFrom) -> std::io::Result<u64> {
+        self.file
+            .seek(pos)
+            .map_err(|source| self.error(source, ErrorKind::Seek))
+    }
+}
+
+impl<'a> Seek for &'a File {
+    fn seek(&mut self, pos: std::io::SeekFrom) -> std::io::Result<u64> {
+        (&(**self).file)
+            .seek(pos)
+            .map_err(|source| self.error(source, ErrorKind::Seek))
+    }
+}
+
+impl Write for File {
+    fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
+        self.file
+            .write(buf)
+            .map_err(|source| self.error(source, ErrorKind::Write))
+    }
+
+    fn write_vectored(&mut self, bufs: &[std::io::IoSlice<'_>]) -> std::io::Result<usize> {
+        self.file
+            .write_vectored(bufs)
+            .map_err(|source| self.error(source, ErrorKind::Write))
+    }
+
+    fn flush(&mut self) -> std::io::Result<()> {
+        self.file
+            .flush()
+            .map_err(|source| self.error(source, ErrorKind::Flush))
+    }
+}
+
+impl<'a> Write for &'a File {
+    fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
+        (&(**self).file)
+            .write(buf)
+            .map_err(|source| self.error(source, ErrorKind::Write))
+    }
+
+    fn write_vectored(&mut self, bufs: &[std::io::IoSlice<'_>]) -> std::io::Result<usize> {
+        (&(**self).file)
+            .write_vectored(bufs)
+            .map_err(|source| self.error(source, ErrorKind::Write))
+    }
+
+    fn flush(&mut self) -> std::io::Result<()> {
+        (&(**self).file)
+            .flush()
+            .map_err(|source| self.error(source, ErrorKind::Flush))
+    }
+}
+
+#[cfg(unix)]
+mod unix {
+    use crate::os::unix::fs::FileExt;
+    use crate::ErrorKind;
+    use std::io;
+    use std::os::unix::fs::FileExt as _;
+    use std::os::unix::io::{AsRawFd, IntoRawFd, RawFd};
+
+    impl AsRawFd for crate::File {
+        fn as_raw_fd(&self) -> RawFd {
+            self.file().as_raw_fd()
+        }
+    }
+
+    impl IntoRawFd for crate::File {
+        fn into_raw_fd(self) -> RawFd {
+            self.file.into_raw_fd()
+        }
+    }
+
+    impl FileExt for crate::File {
+        fn read_at(&self, buf: &mut [u8], offset: u64) -> io::Result<usize> {
+            self.file()
+                .read_at(buf, offset)
+                .map_err(|err| self.error(err, ErrorKind::ReadAt))
+        }
+        fn write_at(&self, buf: &[u8], offset: u64) -> io::Result<usize> {
+            self.file()
+                .write_at(buf, offset)
+                .map_err(|err| self.error(err, ErrorKind::WriteAt))
+        }
+    }
+}
+
+#[cfg(windows)]
+mod windows {
+    use crate::os::windows::fs::FileExt;
+    use crate::ErrorKind;
+    use std::io;
+    use std::os::windows::{
+        fs::FileExt as _,
+        io::{AsRawHandle, IntoRawHandle, RawHandle},
+    };
+
+    impl FileExt for crate::File {
+        fn seek_read(&self, buf: &mut [u8], offset: u64) -> io::Result<usize> {
+            self.file()
+                .seek_read(buf, offset)
+                .map_err(|err| self.error(err, ErrorKind::SeekRead))
+        }
+
+        fn seek_write(&self, buf: &[u8], offset: u64) -> io::Result<usize> {
+            self.file()
+                .seek_write(buf, offset)
+                .map_err(|err| self.error(err, ErrorKind::SeekWrite))
+        }
+    }
+
+    impl AsRawHandle for crate::File {
+        fn as_raw_handle(&self) -> RawHandle {
+            self.file().as_raw_handle()
+        }
+    }
+
+    // can't be implemented, because the trait doesn't give us a Path
+    // impl std::os::windows::io::FromRawHandle for crate::File {
+    // }
+
+    impl IntoRawHandle for crate::File {
+        fn into_raw_handle(self) -> RawHandle {
+            self.file.into_raw_handle()
+        }
+    }
+}