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moby--moby/volume/mounts/lcow_parser.go
Sebastiaan van Stijn 73378d2042
volume/mounts: don't use global variable for fileinfoprovider
This allows stubbing the provider for a test without side effects for
other tests, making it no longer needed to reset it to its original
value in a defer()

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-07-02 14:11:55 +02:00

51 lines
1.5 KiB
Go

package mounts // import "github.com/docker/docker/volume/mounts"
import (
"errors"
"path"
"github.com/docker/docker/api/types/mount"
)
// NewLCOWParser creates a parser with Linux Containers on Windows semantics.
func NewLCOWParser() Parser {
return &lcowParser{
windowsParser{
fi: defaultFileInfoProvider{},
},
}
}
// rxLCOWDestination is the regex expression for the mount destination for LCOW
//
// Destination (aka container path):
// - Variation on hostdir but can be a drive followed by colon as well
// - If a path, must be absolute. Can include spaces
// - Drive cannot be c: (explicitly checked in code, not RegEx)
const rxLCOWDestination = `(?P<destination>/(?:[^\\/:*?"<>\r\n]+[/]?)*)`
var lcowSpecificValidators mountValidator = func(m *mount.Mount) error {
if path.Clean(m.Target) == "/" {
return ErrVolumeTargetIsRoot
}
if m.Type == mount.TypeNamedPipe {
return errors.New("Linux containers on Windows do not support named pipe mounts")
}
return nil
}
type lcowParser struct {
windowsParser
}
func (p *lcowParser) ValidateMountConfig(mnt *mount.Mount) error {
return p.validateMountConfigReg(mnt, rxLCOWDestination, lcowSpecificValidators)
}
func (p *lcowParser) ParseMountRaw(raw, volumeDriver string) (*MountPoint, error) {
return p.parseMountRaw(raw, volumeDriver, rxLCOWDestination, false, lcowSpecificValidators)
}
func (p *lcowParser) ParseMountSpec(cfg mount.Mount) (*MountPoint, error) {
return p.parseMountSpec(cfg, rxLCOWDestination, false, lcowSpecificValidators)
}