Fix contributions calendar month label truncation

CHANGELOG

@@ -55,6 +55,7 @@ v 8.12.0 (unreleased)
   - Ability to manage project issues, snippets, wiki, merge requests and builds access level
   - Remove inconsistent font weight for sidebar's labels (ClemMakesApps)
   - Align add button on repository view (ClemMakesApps)
+  - Fix contributions calendar month label truncation (ClemMakesApps)
   - Added tests for diff notes
   - Add a button to download latest successful artifacts for branches and tags !5142
   - Remove redundant pipeline tooltips (ClemMakesApps)

app/assets/javascripts/users/calendar.js

@@ -52,8 +52,22 @@
       this.initTooltips();
     }
+    // Add extra padding for the last month label if it is also the last column
+    Calendar.prototype.getExtraWidthPadding = function(group) {
+      var extraWidthPadding = 0;
+      var lastColMonth = this.timestampsTmp[group - 1][0].date.getMonth();
+      var secondLastColMonth = this.timestampsTmp[group - 2][0].date.getMonth();
+
+      if (lastColMonth != secondLastColMonth) {
+        extraWidthPadding = 3;
+      }
+
+      return extraWidthPadding;
+    }
+
     Calendar.prototype.renderSvg = function(group) {
-      return this.svg = d3.select('.js-contrib-calendar').append('svg').attr('width', (group + 1) * this.daySizeWithSpace).attr('height', 167).attr('class', 'contrib-calendar');
+      var width = (group + 1) * this.daySizeWithSpace + this.getExtraWidthPadding(group);
+      return this.svg = d3.select('.js-contrib-calendar').append('svg').attr('width', width).attr('height', 167).attr('class', 'contrib-calendar');
     };
     Calendar.prototype.renderDays = function() {