Automatic merge from submit-queue (batch tested with PRs 50537, 49699, 50160, 49025, 50205)
not allowing "kubectl edit <resource>" when you got an empty list
**What this PR does / why we need it**:
`kubectl edit` will panic when adding an empty list.
> panic: runtime error: index out of range
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#50147
**Special notes for your reviewer**:
/assign @errordeveloper @mengqiy @janetkuo @fabianofranz
/cc @rootfs @soltysh @sttts
**Release note**:
```release-note
not allowing "kubectl edit <resource>" when you got an empty list
```
Automatic merge from submit-queue (batch tested with PRs 46091, 48280)
allow output patch string in edit command
**What this PR does / why we need it**:
allow user to get the patch from edit command if user is not familiar with the patch format.
```
# ./cluster/kubectl.sh create role a --verb=get,list --resource=no
role "a" created
# ./cluster/kubectl.sh edit role a --output-patch=true
Patch: {"rules":[{"apiGroups":[""],"resources":["nodes"],"verbs":["get","list","delete"]}]}
role "a" edited
# ./cluster/kubectl.sh create role b --verb=get,list --resource=no
role "b" created
# ./cluster/kubectl.sh patch role b -p '{"rules":[{"apiGroups":[""],"resources":["nodes"],"verbs":["get","list","delete"]}]}'
role "b" patched
```
**Which issue this PR fixes**: fixes#47173
**Special notes for your reviewer**:
**Release note**:
```release-note
Could get the patch from kubectl edit command
```
**What this PR does / why we need it**:
Visibility rules allow dependency control. The rules currently in
place make all targets public, to override the default state of
private. This PR removes public visibility from kubectl code. It
uses specially named pacakge groups to identify "bad" dependencies on
kubectl code for later refactoring or removal.
**Which issue this PR fixes**
First in a series of PRs to address kubernetes/community#598
**Release note**:
```release-note
NONE
```
Currently attach and the editor do not share the same logic for saving
and restoring the terminal, and are not suitable for nesting (when the
caller wants to create something, attach, and then delete something when
the attach is over). This commit moves the interrupt protection logic
to a util package and supports nesting interrupt handlers.
Contains the following fixes for Windows users of kubectl edit:
* Defaults to notepad as the default Windows editor
* Uses CRLF line endings
* Ensures a file lock is freed
Antoine Pelisse