func (s *SnapPart) activate(inhibitHooks bool, inter interacter) error {
currentActiveSymlink := filepath.Join(s.basedir, "..", "current")
currentActiveDir, _ := filepath.EvalSymlinks(currentActiveSymlink)
// already active, nothing to do
if s.basedir == currentActiveDir {
return nil
}
// there is already an active part
if currentActiveDir != "" {
// TODO: support switching origins
oldYaml := filepath.Join(currentActiveDir, "meta", "package.yaml")
oldPart, err := NewInstalledSnapPart(oldYaml, s.origin)
if err != nil {
return err
}
if err := oldPart.deactivate(inhibitHooks, inter); err != nil {
return err
}
}
if s.Type() == pkg.TypeFramework {
if err := policy.Install(s.Name(), s.basedir, dirs.GlobalRootDir); err != nil {
return err
}
}
if err := installClickHooks(s.basedir, s.m, s.origin, inhibitHooks); err != nil {
// cleanup the failed hooks
removeClickHooks(s.m, s.origin, inhibitHooks)
return err
}
// generate the security policy from the package.yaml
if err := s.m.addSecurityPolicy(s.basedir); err != nil {
return err
}
// add the "binaries:" from the package.yaml
if err := s.m.addPackageBinaries(s.basedir); err != nil {
return err
}
// add the "services:" from the package.yaml
if err := s.m.addPackageServices(s.basedir, inhibitHooks, inter); err != nil {
return err
}
if err := os.Remove(currentActiveSymlink); err != nil && !os.IsNotExist(err) {
logger.Noticef("Failed to remove %q: %v", currentActiveSymlink, err)
}
dbase := filepath.Join(dirs.SnapDataDir, QualifiedName(s))
currentDataSymlink := filepath.Join(dbase, "current")
if err := os.Remove(currentDataSymlink); err != nil && !os.IsNotExist(err) {
logger.Noticef("Failed to remove %q: %v", currentDataSymlink, err)
}
// symlink is relative to parent dir
if err := os.Symlink(filepath.Base(s.basedir), currentActiveSymlink); err != nil {
return err
}
if err := os.MkdirAll(filepath.Join(dbase, s.Version()), 0755); err != nil {
return err
}
return os.Symlink(filepath.Base(s.basedir), currentDataSymlink)
}
func (s *SnapPart) activate(inhibitHooks bool, inter interacter) error {
currentActiveSymlink := filepath.Join(s.basedir, "..", "current")
currentActiveDir, _ := filepath.EvalSymlinks(currentActiveSymlink)
// already active, nothing to do
if s.basedir == currentActiveDir {
return nil
}
// there is already an active part
if currentActiveDir != "" {
// TODO: support switching origins
oldYaml := filepath.Join(currentActiveDir, "meta", "snap.yaml")
oldPart, err := NewInstalledSnapPart(oldYaml, s.origin)
if err != nil {
return err
}
if err := oldPart.deactivate(inhibitHooks, inter); err != nil {
return err
}
}
if s.Type() == snap.TypeFramework {
if err := policy.Install(s.Name(), s.basedir, dirs.GlobalRootDir); err != nil {
return err
}
}
// generate the security policy from the snap.yaml
// Note that this must happen before binaries/services are
// generated because serices may get started
appsDir := filepath.Join(dirs.SnapSnapsDir, QualifiedName(s), s.Version())
if err := generatePolicy(s.m, appsDir); err != nil {
return err
}
// add the "binaries:" from the snap.yaml
if err := addPackageBinaries(s.m, s.basedir); err != nil {
return err
}
// add the "services:" from the snap.yaml
if err := addPackageServices(s.m, s.basedir, inhibitHooks, inter); err != nil {
return err
}
if err := os.Remove(currentActiveSymlink); err != nil && !os.IsNotExist(err) {
logger.Noticef("Failed to remove %q: %v", currentActiveSymlink, err)
}
dbase := filepath.Join(dirs.SnapDataDir, QualifiedName(s))
currentDataSymlink := filepath.Join(dbase, "current")
if err := os.Remove(currentDataSymlink); err != nil && !os.IsNotExist(err) {
logger.Noticef("Failed to remove %q: %v", currentDataSymlink, err)
}
// symlink is relative to parent dir
if err := os.Symlink(filepath.Base(s.basedir), currentActiveSymlink); err != nil {
return err
}
if err := os.MkdirAll(filepath.Join(dbase, s.Version()), 0755); err != nil {
return err
}
// FIXME: create {Os,Kernel}Snap type instead of adding special
// cases here
if err := setNextBoot(s); err != nil {
return err
}
return os.Symlink(filepath.Base(s.basedir), currentDataSymlink)
}