Add setup check for missing UTF8MB4 on mysql

[MorrisJobke]

See #14394 (comment)

Looks then like this:

[nickvergessen]

didnt test, but looks good

[rullzer]

CI not happy

[MorrisJobke]

CI not happy

I know, but I have no idea why - it works locally just fine :/

[MorrisJobke]

Unrelated failures - let me squash this then:

Status of 16578: failure

• failure TESTS=acceptance, TESTS-ACCEPTANCE=app-files-tags
  • tests/acceptance/features/app-files-tags.feature:42

Show full log

  Scenario: add tags using the dropdown in the details view                                 # /drone/src/github.com/nextcloud/server/tests/acceptance/features/app-files-tags.feature:42
    Given I am logged in as the admin                                                       # LoginPageContext::iAmLoggedInAsTheAdmin()
    And I visit the settings page                                                           # SettingsMenuContext::iVisitTheSettingsPage()
    And I open the "Tag management" section                                                 # AppNavigationContext::iOpenTheSection()
    And I see that the button to select tags is shown                                       # SettingsContext::iSeeThatTheButtonToSelectTagsIsShown()
    And I create the tag "tag1" in the settings                                             # SettingsContext::iCreateTheTagInTheSettings()
    And I create the tag "tag2" in the settings                                             # SettingsContext::iCreateTheTagInTheSettings()
    And I create the tag "tag3" in the settings                                             # SettingsContext::iCreateTheTagInTheSettings()
    And I create the tag "tag4" in the settings                                             # SettingsContext::iCreateTheTagInTheSettings()
    And I see that the dropdown for tags in the settings eventually contains the tag "tag1" # SettingsContext::iSeeThatTheDropdownForTagsInTheSettingsEventuallyContainsTheTag()
    And I see that the dropdown for tags in the settings eventually contains the tag "tag2" # SettingsContext::iSeeThatTheDropdownForTagsInTheSettingsEventuallyContainsTheTag()
    And I see that the dropdown for tags in the settings eventually contains the tag "tag3" # SettingsContext::iSeeThatTheDropdownForTagsInTheSettingsEventuallyContainsTheTag()
    And I see that the dropdown for tags in the settings eventually contains the tag "tag4" # SettingsContext::iSeeThatTheDropdownForTagsInTheSettingsEventuallyContainsTheTag()
    And I log out                                                                           # SettingsMenuContext::iLogOut()
    And I am logged in                                                                      # LoginPageContext::iAmLoggedIn()
    And I open the details view for "welcome.txt"                                           # FileListContext::iOpenTheDetailsViewFor()
    And I open the input field for tags in the details view                                 # FilesAppContext::iOpenTheInputFieldForTagsInTheDetailsView()
    When I check the tag "tag2" in the dropdown for tags in the details view                # FilesAppContext::iCheckTheTagInTheDropdownForTagsInTheDetailsView()
    And I check the tag "tag4" in the dropdown for tags in the details view                 # FilesAppContext::iCheckTheTagInTheDropdownForTagsInTheDetailsView()
    Then I see that the tag "tag2" in the dropdown for tags in the details view is checked  # FilesAppContext::iSeeThatTheTagInTheDropdownForTagsInTheDetailsViewIsChecked()
    And I see that the tag "tag4" in the dropdown for tags in the details view is checked   # FilesAppContext::iSeeThatTheTagInTheDropdownForTagsInTheDetailsViewIsChecked()
    And I see that the input field for tags in the details view contains the tag "tag2"     # FilesAppContext::iSeeThatTheInputFieldForTagsInTheDetailsViewContainsTheTag()
      Failed asserting that false is true.
    And I see that the input field for tags in the details view contains the tag "tag4"     # FilesAppContext::iSeeThatTheInputFieldForTagsInTheDetailsViewContainsTheTag()

• failure TESTS=acceptance, TESTS-ACCEPTANCE=users
  • tests/acceptance/features/users.feature:100

Show full log

  Scenario: change columns visibility                          # /drone/src/github.com/nextcloud/server/tests/acceptance/features/users.feature:100
    Given I act as Jane                                        # ActorContext::iActAs()
    And I am logged in as the admin                            # LoginPageContext::iAmLoggedInAsTheAdmin()
    And I open the User settings                               # SettingsMenuContext::iOpenTheUserSettings()
    And I open the settings                                    # AppSettingsContext::iOpenTheSettings()
      App settings could not be found
      The button to open the app settings could not be found (NoSuchElementException)
    And I see that the settings are opened                     # AppSettingsContext::iSeeThatTheSettingsAreOpened()
    When I toggle the showLanguages checkbox in the settings   # AppSettingsContext::iToggleTheCheckboxInTheSettingsTo()
    Then I see that the "Language" column is shown             # UsersSettingsContext::iSeeThatTheColumnIsShown()
    When I toggle the showLastLogin checkbox in the settings   # AppSettingsContext::iToggleTheCheckboxInTheSettingsTo()
    Then I see that the "Last login" column is shown           # UsersSettingsContext::iSeeThatTheColumnIsShown()
    When I toggle the showStoragePath checkbox in the settings # AppSettingsContext::iToggleTheCheckboxInTheSettingsTo()
    Then I see that the "Storage location" column is shown     # UsersSettingsContext::iSeeThatTheColumnIsShown()
    When I toggle the showUserBackend checkbox in the settings # AppSettingsContext::iToggleTheCheckboxInTheSettingsTo()
    Then I see that the "User backend" column is shown         # UsersSettingsContext::iSeeThatTheColumnIsShown()
sh: 1: kill: No such process

[ghost]

🎉

[MorrisJobke]

Failures are unrelated.

[MorrisJobke]

/backport to stable15

[backportbot-nextcloud]

backport to stable15 in #14857