copy copies directories recursively.
err := Copy("your/directory", "your/directory.copy")// Options specifies optional actions on copying.
type Options struct {
// OnSymlink can specify what to do on symlink
OnSymlink func(src string) SymlinkAction
// OnDirExists can specify what to do when there is a directory already existing in destination.
OnDirExists func(src, dest string) DirExistsAction
// Skip can specify which files should be skipped
Skip func(src string) (bool, error)
// AddPermission to every entry,
// NO MORE THAN 0777
AddPermission os.FileMode
// Sync file after copy.
// Useful in case when file must be on the disk
// (in case crash happens, for example),
// at the expense of some performance penalty
Sync bool
// Preserve the atime and the mtime of the entries
// On linux we can preserve only up to 1 millisecond accuracy
PreserveTimes bool
// Preserve the uid and the gid of all entries.
PreserveOwner bool
// The byte size of the buffer to use for copying files.
// If zero, the internal default buffer of 32KB is used.
// See https://golang.org/pkg/io/#CopyBuffer for more information.
CopyBufferSize uint
}// For example...
opt := Options{
Skip: func(src string) (bool, error) {
return strings.HasSuffix(src, ".git"), nil
},
}
err := Copy("your/directory", "your/directory.copy", opt)