本文整理汇总了Golang中github.com/snapcore/snapd/overlord/state.Task.Change方法的典型用法代码示例。如果您正苦于以下问题：Golang Task.Change方法的具体用法？Golang Task.Change怎么用？Golang Task.Change使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/snapcore/snapd/overlord/state.Task的用法示例。
在下文中一共展示了Task.Change方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: addCleanup
func (p4 patch4T) addCleanup(task *state.Task) error {
// NOTE we could check for the status of the change itself, but
// copy-snap-data is the one creating the trash, so if it's run there's
// no sense in fiddling with the change.
if task.Status().Ready() {
return nil
}
snapsup, err := p4.taskSnapSetup(task)
if err != nil {
return err
}
var tid string
if err := p4.get(task, "snap-setup-task", &tid); err != nil {
return err
}
change := task.Change()
revisionStr := ""
if snapsup.SideInfo != nil {
revisionStr = fmt.Sprintf(" (%s)", snapsup.Revision())
}
tasks := change.Tasks()
last := tasks[len(tasks)-1]
newTask := task.State().NewTask("cleanup", fmt.Sprintf("Clean up %q%s install", snapsup.Name(), revisionStr))
newTask.Set("snap-setup-task", tid)
newTask.WaitFor(last)
change.AddTask(newTask)
return nil
}示例2: mangle
func (p4 patch4T) mangle(task *state.Task) error {
snapsup, snapst, err := p4.snapSetupAndState(task)
if err != nil {
return err
}
var hadCandidate bool
if err := p4.getMaybe(task, "had-candidate", &hadCandidate); err != nil && err != state.ErrNoState {
return err
}
if hadCandidate {
change := task.Change()
if change.Kind() != "revert-snap" {
return fmt.Errorf("had-candidate true for task %s (%s) of non-revert change %s (%s)",
task.ID(), task.Kind(), change.ID(), change.Kind())
}
}
task.Clear("had-candidate")
task.Set("old-candidate-index", snapst.LastIndex(snapsup.SideInfo.Revision))
return nil
}示例3: gget
// gget does the actual work of get and getMaybe
func (patch4T) gget(task *state.Task, key string, passThroughMissing bool, value interface{}) error {
err := task.Get(key, value)
if err == nil || (passThroughMissing && err == state.ErrNoState) {
return err
}
change := task.Change()
return fmt.Errorf("cannot get %q from task %s (%s) of change %s (%s): %v",
key, task.ID(), task.Kind(), change.ID(), change.Kind(), err)
}