Struct std::fs::Metadata
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pub struct Metadata(_);1.0.0
Metadata information about a file.
This structure is returned from the metadata function or method and
represents known metadata about a file such as its permissions, size,
modification times, etc.
Methods
impl Metadata
fn file_type(&self) -> FileType1.1.0
Returns the file type for this metadata.
fn is_dir(&self) -> bool
Returns whether this metadata is for a directory.
Examples
fn main() { fn foo() -> std::io::Result<()> { use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert!(!metadata.is_dir()); Ok(()) } }use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert!(!metadata.is_dir());
fn is_file(&self) -> bool
Returns whether this metadata is for a regular file.
Examples
fn main() { fn foo() -> std::io::Result<()> { use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert!(metadata.is_file()); Ok(()) } }use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert!(metadata.is_file());
fn len(&self) -> u64
Returns the size of the file, in bytes, this metadata is for.
Examples
fn main() { fn foo() -> std::io::Result<()> { use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert_eq!(0, metadata.len()); Ok(()) } }use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert_eq!(0, metadata.len());
fn permissions(&self) -> Permissions
Returns the permissions of the file this metadata is for.
Examples
fn main() { fn foo() -> std::io::Result<()> { use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert!(!metadata.permissions().readonly()); Ok(()) } }use std::fs; let metadata = try!(fs::metadata("foo.txt")); assert!(!metadata.permissions().readonly());
fn modified(&self) -> Result<SystemTime>
fs_time #31399)Returns the last modification time listed in this metadata.
The returned value corresponds to the mtime field of stat on Unix
platforms and the ftLastWriteTime field on Windows platforms.
Errors
This field may not be available on all platforms, and will return an
Err on platforms where it is not available.
fn accessed(&self) -> Result<SystemTime>
fs_time #31399)Returns the last access time of this metadata.
The returned value corresponds to the atime field of stat on Unix
platforms and the ftLastAccessTime field on Windows platforms.
Note that not all platforms will keep this field update in a file's
metadata, for example Windows has an option to disable updating this
time when files are accessed and Linux similarly has noatime.
Errors
This field may not be available on all platforms, and will return an
Err on platforms where it is not available.
fn created(&self) -> Result<SystemTime>
fs_time #31399)Returns the creation time listed in the this metadata.
The returned value corresponds to the birthtime field of stat on
Unix platforms and the ftCreationTime field on Windows platforms.
Errors
This field may not be available on all platforms, and will return an
Err on platforms where it is not available.