265 lines
7.7 KiB
Plaintext
265 lines
7.7 KiB
Plaintext
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--- Low-level and high-level filesystem manipulation library.
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module "nixio.fs"
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--- Check user's permission on a file.
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-- @class function
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-- @name nixio.fs.access
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-- @param path Path
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-- @param mode1 First Mode to check ["f", "r", "w", "x"]
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-- @param ... More Modes to check [-"-]
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-- @return true
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--- Strip the directory part from a path.
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-- @class function
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-- @name nixio.fs.basename
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-- @usage This function cannot fail and will never return nil.
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-- @param path Path
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-- @return basename
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--- Strip the base from a path.
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-- @class function
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-- @name nixio.fs.dirname
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-- @usage This function cannot fail and will never return nil.
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-- @param path Path
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-- @return dirname
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--- Return the cannonicalized absolute pathname.
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-- @class function
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-- @name nixio.fs.realpath
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-- @param path Path
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-- @return absolute path
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--- Remove a file or directory.
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-- @class function
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-- @name nixio.fs.remove
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-- @param path Path
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-- @return true
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--- Delete a name and - if no links are left - the associated file.
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-- @class function
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-- @name nixio.fs.unlink
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-- @param path Path
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-- @return true
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--- Renames a file or directory.
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-- @class function
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-- @name nixio.fs.rename
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-- @param src Source path
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-- @param dest Destination path
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-- @usage It is normally not possible to rename files accross fileystems.
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-- @return true
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--- Remove an empty directory.
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-- @class function
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-- @name nixio.fs.rmdir
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-- @param path Path
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-- @return true
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--- Create a new directory.
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-- @class function
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-- @name nixio.fs.mkdir
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-- @param path Path
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-- @param mode File mode (optional, see chmod and umask)
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-- @see nixio.fs.chmod
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-- @see nixio.umask
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-- @return true
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--- Change the file mode.
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-- @class function
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-- @name nixio.fs.chmod
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-- @usage Windows only supports setting the write-protection through the
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-- "Writable to others" bit.
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-- @usage <strong>Notice:</strong> The mode-flag for the functions
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-- open, mkdir, mkfifo are affected by the umask.
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-- @param path Path
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-- @param mode File mode
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-- [decimal mode number, "[-r][-w][-xsS][-r][-w][-xsS][-r][-w][-xtT]"]
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-- @see nixio.umask
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-- @return true
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--- Iterate over the entries of a directory.
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-- @class function
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-- @name nixio.fs.dir
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-- @usage The special entries "." and ".." are omitted.
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-- @param path Path
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-- @return directory iterator returning one entry per call
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--- Create a hard link.
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-- @class function
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-- @name nixio.fs.link
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-- @usage This function calls link() on POSIX and CreateHardLink() on Windows.
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-- @param oldpath Path
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-- @param newpath Path
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-- @return true
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--- Change file last access and last modification time.
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-- @class function
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-- @name nixio.fs.utimes
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-- @param path Path
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-- @param actime Last access timestamp (optional, default: current time)
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-- @param mtime Last modification timestamp (optional, default: actime)
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-- @return true
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--- Get file status and attributes.
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-- @class function
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-- @name nixio.fs.stat
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-- @param path Path
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-- @param field Only return a specific field, not the whole table (optional)
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-- @return Table containing: <ul>
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-- <li>atime = Last access timestamp</li>
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-- <li>blksize = Blocksize (POSIX only)</li>
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-- <li>blocks = Blocks used (POSIX only)</li>
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-- <li>ctime = Creation timestamp</li>
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-- <li>dev = Device ID</li>
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-- <li>gid = Group ID</li>
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-- <li>ino = Inode</li>
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-- <li>modedec = Mode converted into a decimal number</li>
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-- <li>modestr = Mode as string as returned by `ls -l`</li>
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-- <li>mtime = Last modification timestamp</li>
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-- <li>nlink = Number of links</li>
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-- <li>rdev = Device ID (if special file)</li>
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-- <li>size = Size in bytes</li>
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-- <li>type = ["reg", "dir", "chr", "blk", "fifo", "lnk", "sock"]</li>
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-- <li>uid = User ID</li>
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-- </ul>
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--- Get file status and attributes and do not resolve if target is a symlink.
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-- @class function
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-- @name nixio.fs.lstat
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-- @param path Path
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-- @param field Only return a specific field, not the whole table (optional)
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-- @see nixio.fs.stat
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-- @return Table containing attributes (see stat for a detailed description)
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--- (POSIX) Change owner and group of a file.
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-- @class function
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-- @name nixio.fs.chown
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-- @param path Path
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-- @param user User ID or Username (optional)
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-- @param group Group ID or Groupname (optional)
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-- @return true
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--- (POSIX) Change owner and group of a file and do not resolve
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-- if target is a symlink.
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-- @class function
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-- @name nixio.fs.lchown
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-- @param path Path
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-- @param user User ID or Username (optional)
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-- @param group Group ID or Groupname (optional)
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-- @return true
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--- (POSIX) Create a FIFO (named pipe).
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-- @class function
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-- @name nixio.fs.mkfifo
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-- @param path Path
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-- @param mode File mode (optional, see chmod and umask)
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-- @see nixio.fs.chmod
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-- @see nixio.umask
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-- @return true
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--- (POSIX) Create a symbolic link.
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-- @class function
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-- @name nixio.fs.symlink
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-- @param oldpath Path
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-- @param newpath Path
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-- @return true
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--- (POSIX) Read the target of a symbolic link.
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-- @class function
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-- @name nixio.fs.readlink
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-- @param path Path
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-- @return target path
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--- (POSIX) Find pathnames matching a pattern.
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-- @class function
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-- @name nixio.fs.glob
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-- @param pattern Pattern
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-- @return path iterator
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-- @return number of matches
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--- (POSIX) Get filesystem statistics.
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-- @class function
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-- @name nixio.fs.statvfs
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-- @param path Path to any file within the filesystem.
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-- @return Table containing: <ul>
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-- <li>bavail = available blocks</li>
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-- <li>bfree = free blocks</li>
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-- <li>blocks = number of fragments</li>
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-- <li>frsize = fragment size</li>
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-- <li>favail = available inodes</li>
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-- <li>ffree = free inodes</li>
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-- <li>files = inodes</li>
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-- <li>flag = flags</li>
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-- <li>fsid = filesystem ID</li>
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-- <li>namemax = maximum filename length</li>
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-- </ul>
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--- Read the contents of a file into a buffer.
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-- @class function
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-- @name nixio.fs.readfile
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-- @param path Path
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-- @param limit Maximum bytes to read (optional)
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-- @return file contents
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--- Write a buffer into a file truncating the file first.
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-- @class function
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-- @name nixio.fs.writefile
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-- @param path Path
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-- @param data Data to write
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-- @return true
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--- Copy data between files.
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-- @class function
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-- @name nixio.fs.datacopy
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-- @param src Source file path
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-- @param dest Destination file path
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-- @param limit Maximum bytes to copy (optional)
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-- @return true
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--- Copy a file, directory or symlink non-recursively preserving file mode,
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-- timestamps, owner and group.
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-- @class function
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-- @name nixio.fs.copy
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-- @usage The destination must always be a full destination path e.g. do not
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-- omit the basename even if source and destination basename are equal.
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-- @param src Source path
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-- @param dest Destination path
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-- @return true
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--- Rename a file, directory or symlink non-recursively across filesystems.
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-- @class function
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-- @name nixio.fs.move
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-- @usage The destination must always be a full destination path e.g. do not
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-- omit the basename even if source and destination basename are equal.
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-- @param src Source path
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-- @param dest Destination path
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-- @return true
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--- Create a directory and all needed parent directories recursively.
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-- @class function
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-- @name nixio.fs.mkdirr
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-- @param dest Destination path
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-- @param mode File mode (optional, see chmod and umask)
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-- @see nixio.fs.chmod
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-- @see nixio.umask
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-- @return true
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--- Rename a file, directory or symlink recursively across filesystems.
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-- @class function
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-- @name nixio.fs.mover
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-- @usage The destination must always be a full destination path e.g. do not
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-- omit the basename even if source and destination basename are equal.
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-- @param src Source path
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-- @param dest Destination path
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-- @return true
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--- Copy a file, directory or symlink recursively preserving file mode,
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-- timestamps, owner and group.
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-- @class function
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-- @name nixio.fs.copyr
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-- @usage The destination must always be a full destination path e.g. do not
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-- omit the basename even if source and destination basename are equal.
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-- @param src Source path
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-- @param dest Destination path
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-- @return true
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