github.com/dpiddy/docker@v1.12.2-rc1/volume/volume_copy.go (about)

     1  package volume
     2  
     3  import "strings"
     4  
     5  const (
     6  	// DefaultCopyMode is the copy mode used by default for normal/named volumes
     7  	DefaultCopyMode = true
     8  )
     9  
    10  // {<copy mode>=isEnabled}
    11  var copyModes = map[string]bool{
    12  	"nocopy": false,
    13  }
    14  
    15  func copyModeExists(mode string) bool {
    16  	_, exists := copyModes[mode]
    17  	return exists
    18  }
    19  
    20  // GetCopyMode gets the copy mode from the mode string for mounts
    21  func getCopyMode(mode string) (bool, bool) {
    22  	for _, o := range strings.Split(mode, ",") {
    23  		if isEnabled, exists := copyModes[o]; exists {
    24  			return isEnabled, true
    25  		}
    26  	}
    27  	return DefaultCopyMode, false
    28  }