void _showGist()

in lib/playground.dart [713:764]
39 lines of code
9 McCabe index (conditional complexity)

  void _showGist(String gistId) {
    if (_gistIdInProgress == gistId) {
      return;
    }
    // Don't auto-run if we're re-loading some unsaved edits; the gist might
    // have halting issues (#384).
    var loadedFromSaved = false;

    // When sharing, we have to pipe the returned (created) gist through the
    // routing library to update the url properly.
    final overrideNextRouteGist = _overrideNextRouteGist;
    if (overrideNextRouteGist != null && overrideNextRouteGist.id == gistId) {
      _editableGist.setBackingGist(overrideNextRouteGist);
      _overrideNextRouteGist = null;
      return;
    }

    _overrideNextRouteGist = null;

    _gistIdInProgress = gistId;
    gistLoader.loadGist(gistId).then((Gist gist) {
      _editableGist.setBackingGist(gist);

      if (_gistStorage.hasStoredGist && _gistStorage.storedId == gistId) {
        loadedFromSaved = true;

        final storedGist = _gistStorage.getStoredGist()!;
        _editableGist.description = storedGist.description;
        for (final file in storedGist.files) {
          _editableGist.getGistFile(file.name).content = file.content;
        }
      }

      clearOutput();

      // Analyze and run it.
      Timer.run(() {
        performAnalysis().then((bool result) {
          // Only auto-run if the static analysis comes back clean.
          if (result && !loadedFromSaved) {
            handleRun();
          }
        }).catchError((e) => null);
      });
    }).catchError((e) {
      final message = 'Error loading gist $gistId.';
      showSnackbar(message);
      _logger.severe('$message: $e');
    }).whenComplete(() {
      _gistIdInProgress = null;
    });
  }