* Send current time range when fetching labels and values in Explore
* Pass range to Editors, in the same way as it was in Angular editors
* Remove unused imports
* Remove unused imports, props
* Update
* Update
* Update refresh condition
* Add comment
* Explore: Remove datasource testing on selector
- datasource testing gets in the way of fast query iteration: switching
between datasources can take seconds
- it should not be explore's duty to test datasources in the first place
- removed the concept of datasourceError in Explore, should not be its
concern
- datasource erorrs will express themselves in query errors just fine
- connection errors are still bubbled up
- removed reconnection logic from explore, should not be its concern
- missing labels in loki are still "visible" via an empty label selector
- Loki and Prometheus treated connection errors differently than other
datasources, making sure to pass through the original error message
* Show datasource error in query field for prom/loki/influx
* Removed connection test case, fixed disabled state
* Explore: Adds support for new loki 'start' and 'end' params for labels endpoint
Also initializes absoluteRange when explore is initialized
Closes#16788
* Explore: Dispatches updateTimeRangeAction instead of passing absoluteRange when initializing
Also removes dependency on sinon from loki language provider test
* Loki: Refactors transformation of absolute time range to URL params into small utility function
* Makes use of rangeToParams() util function in loki language provider test
Also updates LanguageProvider.request() interface so that url should be type string, and adds optional params argument
* Style: made outlined buttons and used it in Alert component
* Refactor: clean up state on load data source failure
* Refactor: test data source thunk created
* Refactor: move logic to changeDatasource and call that from intialize
* Refactor: move load explore datasources to own thunk
* Refactor: move logic to updateDatasourceInstanceAction
* Tests: reducer tests
* Test(Explore): Added tests and made thunkTester async
* Fix(Explore): Fixed so that we do not render StartPage if there is no StartPage
* Fix(Explore): Missed type in merge
* Refactor: Thunktester did not fail tests on async failures and prevented queires from running on datasource failures
* Feat: Fadein error alert to prevent flickering
* Feat: Refresh labels after reconnect
* Refactor: Move useLokiForceLabels into useLokiLabels from PR comments
* Feat: adds refresh metrics to Prometheus languageprovider
* Style: removes padding for connected datasources
* Chore: remove implicit anys
* Migrated loki syntax and labels logic to useLokiSyntax hook
* Enable loki labels refresh after specified interval has passed
* Enable periodic loki labels refresh when labels selector is opened
* Fix prettier
* Add react-hooks-testing-library and disable lib check on typecheck
* Add tests for loki syntax/label hooks
* Move tsc's skipLibCheck option to tsconfig for webpack to pick it up
* Set log labels refresh marker variable when log labels fetch start
* Fix prettier issues
* Fix type on activeOption in useLokiLabel hook
* Typo fixes and types in useLokiSyntax hook test fixes
* Make sure effect's setState is not performed on unmounted component
* Extract logic for checking if is component mounted to a separate hook
- tried split selector and search for a week, and it did not feel natural
- keeping some of the original modifications in QueryField from splitting PR
- adapted CheatSheet and placeholder text
- added new label selector state: No labels found
- add second query field to logging datasource query component
- second field manages search term, first field manages stream selectors
- improved logging cheat sheet to get started
