Trait FileSystem

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pub trait FileSystem {
    // Required methods
    fn create_dir(&self, path: &str) -> Result<()>;
    fn metadata(&self, path: &str) -> Result<Metadata>;
    fn open_file_options(
        &self,
        path: &str,
        options: &OpenOptions,
    ) -> Result<Box<dyn File>>;
    fn read_dir(
        &self,
        path: &str,
    ) -> Result<Box<dyn Iterator<Item = Result<DirEntry>>>>;
    fn remove_dir(&self, path: &str) -> Result<()>;
    fn remove_file(&self, path: &str) -> Result<()>;

    // Provided methods
    fn create_dir_all(&self, path: &str) -> Result<()> { ... }
    fn create_file(&self, path: &str) -> Result<Box<dyn File>> { ... }
    fn exists(&self, path: &str) -> Result<bool> { ... }
    fn open_file(&self, path: &str) -> Result<Box<dyn File>> { ... }
}

Expand description

A file system with a directory tree.

Required Methods§

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fn create_dir(&self, path: &str) -> Result<()>

Creates a directory at path.

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fn metadata(&self, path: &str) -> Result<Metadata>

Returns the metadata for the file/folder at `path.

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fn open_file_options( &self, path: &str, options: &OpenOptions, ) -> Result<Box<dyn File>>

Opens a file at path with options options.

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fn read_dir( &self, path: &str, ) -> Result<Box<dyn Iterator<Item = Result<DirEntry>>>>

Lists the files and folders contained in the directory denoted by path.

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fn remove_dir(&self, path: &str) -> Result<()>

Removes the directory at path.

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fn remove_file(&self, path: &str) -> Result<()>

Removes a file at path.

Provided Methods§

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fn create_dir_all(&self, path: &str) -> Result<()>

Creates a directory path and all of its parents.

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fn create_file(&self, path: &str) -> Result<Box<dyn File>>

Creates a file at path in write mode. The file will be opened in truncate mode, so all contents will be overwritten. If this is not desirable, use open_file directly.

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