17     pub fn kind(&self) -> io::ErrorKind {  in kind()
26     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {  in fmt()
32     fn source(&self) -> Option<&(dyn StdError + 'static)> {  in source()
38 macro_rules! err {  macro
40         Err(Error {
47 pub(crate) fn copy(from: impl AsRef<Path>, to: impl AsRef<Path>) -> Result<u64> {  in copy()
50     match std::fs::copy(from, to) {  in copy()
52         Err(e) => err!(e, "Failed to copy `{}` -> `{}`", from, to),  in copy()
56 pub(crate) fn create_dir_all(path: impl AsRef<Path>) -> Result<()> {  in create_dir_all()
58     match std::fs::create_dir_all(path) {  in create_dir_all()
60         Err(e) => err!(e, "Failed to create directory `{}`", path),  in create_dir_all()
64 pub(crate) fn current_dir() -> Result<PathBuf> {  in current_dir()
67         Err(e) => err!(e, "Failed to determine current directory"),  in current_dir()
71 pub(crate) fn exists(path: impl AsRef<Path>) -> bool {  in exists()
75     std::fs::symlink_metadata(path).is_ok()  in exists()
78 pub(crate) fn read(path: impl AsRef<Path>) -> Result<Vec<u8>> {  in read()
80     match std::fs::read(path) {  in read()
82         Err(e) => err!(e, "Failed to read file `{}`", path),  in read()
86 pub(crate) fn read_stdin() -> Result<Vec<u8>> {  in read_stdin()
90         Err(e) => err!(e, "Failed to read input from stdin"),  in read_stdin()
94 pub(crate) fn remove_file(path: impl AsRef<Path>) -> Result<()> {  in remove_file()
96     match std::fs::remove_file(path) {  in remove_file()
98         Err(e) => err!(e, "Failed to remove file `{}`", path),  in remove_file()
102 pub(crate) fn remove_dir(path: impl AsRef<Path>) -> Result<()> {  in remove_dir()
104     match std::fs::remove_dir(path) {  in remove_dir()
106         Err(e) => err!(e, "Failed to remove directory `{}`", path),  in remove_dir()
113     fun: fn(&'a Path, &'a Path) -> io::Result<()>,  in symlink()
114 ) -> Result<()> {  in symlink()
117         Err(e) => err!(  in symlink()
126 pub(crate) fn symlink_fail(original: impl AsRef<Path>, link: impl AsRef<Path>) -> Result<()> {  in symlink_fail()
127     err!(  in symlink_fail()
144 pub(crate) fn symlink_file(original: impl AsRef<Path>, link: impl AsRef<Path>) -> Result<()> {  in symlink_file()
145     symlink(original.as_ref(), link.as_ref(), std::os::unix::fs::symlink)  in symlink_file()
149 pub(crate) fn symlink_file(original: impl AsRef<Path>, link: impl AsRef<Path>) -> Result<()> {  in symlink_file()
153         std::os::windows::fs::symlink_file,  in symlink_file()
158 pub(crate) fn symlink_dir(original: impl AsRef<Path>, link: impl AsRef<Path>) -> Result<()> {  in symlink_dir()
162         std::os::windows::fs::symlink_dir,  in symlink_dir()
166 pub(crate) fn write(path: impl AsRef<Path>, contents: impl AsRef<[u8]>) -> Result<()> {  in write()
168     match std::fs::write(path, contents) {  in write()
170         Err(e) => err!(e, "Failed to write file `{}`", path),  in write()