webapp.scripts.components.util.revision.directive.js Maven / Gradle / Ivy

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Highly-available version-controlled service configuration repository based on Git, ZooKeeper and HTTP/2 (centraldogma-server)
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'use strict';

angular.module('CentralDogmaAdmin')
    .directive('revision',
               function () {
                 return {
                   template: '' +
                             '',
                   restrict: 'E',
                   scope: {
                     project: '<',
                     repository: '<',
                     path: '<',
                     revision: '<',
                     showInitialCommit: '<',
                     callback: '&'
                   },
                   controller: function ($scope, $timeout, RepositoryService) {
                     var maxCommits = 15; // The maximum number of adjacent commits to show.

                     $scope.templateUrl = 'revisionPopoverTemplate.html';
                     $scope.history = [];

                     $scope.keyUp = function (event) {
                       if (event.keyCode === 13) { // return
                         $scope.callCallback($('#target-revision').val());
                       }
                     };

                     $scope.callCallback = function (revision) {
                       if (angular.isNumber(revision)) {
                         if (revision === -1) {
                           $scope.callback()('head');
                         } else {
                           $scope.callback()(parseInt(revision).toString());
                         }
                         return;
                       }

                       revision = revision.toString().toLowerCase();
                       if (revision === 'head') {
                         $scope.callback()('head');
                         return;
                       }

                       var revisionAsInt = parseInt(revision);
                       if (Number.isNaN(revisionAsInt)) {
                         return;
                       }

                       if (revisionAsInt === -1) {
                         $scope.callback()('head');
                         return;
                       }

                       $scope.callback()(revisionAsInt.toString());
                     };

                     $scope.hasHistory = function () {
                       return $scope.history.length > 0;
                     };

                     var fetchHistory = function (fromRev) {
                       if (!angular.isDefined($scope.path)) {
                         return;
                       }

                       var toRev = Math.max(1, fromRev - maxCommits + 1);
                       RepositoryService.getHistory($scope.project, $scope.repository, $scope.path, fromRev,
                                                    toRev).then(function (result) {

                         if (!$scope.showInitialCommit &&
                             result.length > 0 && result[result.length - 1].revision.major === 1) {
                           $scope.history = result.slice(0, result.length - 1);
                         } else {
                           $scope.history = result;
                         }
                       });
                     };

                     // Focus the target-revision input field when it goes visible.
                     $scope.$watch(function() {
                       return angular.element('#target-revision').is(':visible');
                     }, function () {
                       $timeout(function() { angular.element('#target-revision').focus(); });
                     });

                     // Fetch the adjacent commits.
                     RepositoryService.normalizeRevision($scope.project, $scope.repository, -1).then(function (head) {

                       var headRev = head.major;
                       var fromRev;
                       var revisionAsInt = parseInt($scope.revision);
                       if (Number.isNaN(revisionAsInt)) {
                         revisionAsInt = -1;
                       }

                       if (revisionAsInt < 0) {
                         RepositoryService.normalizeRevision($scope.project, $scope.repository, revisionAsInt).then(function (normalized) {
                           var normalizedRev = normalized.major;
                           if (revisionAsInt !== -1) {
                             $scope.specifiedRevision = revisionAsInt;
                           } else {
                             $scope.specifiedRevision = 'HEAD';
                           }
                           $scope.normalizedRevision = normalizedRev;
                           fetchHistory(Math.min(headRev, normalizedRev + (maxCommits >> 1)));
                         });
                       } else {
                         $scope.specifiedRevision = revisionAsInt;
                         if (revisionAsInt === headRev) {
                           $scope.normalizedRevision = 'HEAD';
                         }
                         fromRev = Math.min(headRev, revisionAsInt + (maxCommits >> 1));
                         fetchHistory(fromRev);
                       }
                     });
                   }
                 };
               });