add link to the assignment's github page on the assignment detail and the build report

Author: palves-ulht

src/main/kotlin/org/dropProject/dao/Assignment.kt

@@ -201,4 +201,18 @@ data class Assignment(
     override fun toString(): String {
         return "$id - $name"
     }
+
+    fun linkToGithub(): String? {
+        if (gitRepositoryPrivKey == null) {
+            return null
+        }
+
+        val parts = gitRepositoryUrl.split(":")
+        val hostAndPath = parts[1].removeSuffix(".git").split("/")
+        val username = parts[0].substringAfter("@")
+        val host = hostAndPath[0]
+        val repositoryName = hostAndPath[1]
+
+        return "https://$host/$username/$repositoryName"
+    }
 }

src/main/resources/templates/assignment-detail.html

@@ -86,7 +86,9 @@ <h1 class="page-header col-sm-11" th:text="'Assignment ' + ${assignment.id}">Ass
                 </div>
                 <div class="form-group" >
                     <label class="col-sm-3 control-label">Connected to:</label>
-                    <div th:if="${assignment.gitRepositoryPrivKey != null}" class="col-sm-9 read-row" th:text="${assignment.gitRepositoryUrl}"></div>
+                    <a th:if="${assignment.gitRepositoryPrivKey != null}" class="col-sm-9 read-row"
+                        th:text="${assignment.gitRepositoryUrl}"
+                        th:href="${assignment.linkToGithub()}">link to github</a>
                     <div th:if="${assignment.gitRepositoryPrivKey == null}" class="col-sm-9 read-row alert alert-warning">This assignment is not yet connected to a git repository!</div>
                 </div>
                 <div class="form-group" th:if="${lastCommitInfoStr != null}">

src/main/resources/templates/build-report.html

@@ -23,7 +23,7 @@
 
     <h1 class="page-header" th:text="'Build report for submission ' + ${submission.id}"></h1>
     <h6>
-        Assignment: <span th:text="${assignment.id}"></span> |
+        Assignment: <a th:href="${assignment.linkToGithub()}" th:text="${assignment.id}"></a> |
         Submitted: <span th:text="${#dates.format(submission.submissionDate, 'dd-MM HH:mm:ss')}"></span>
         <a th:if="${isTeacher}"
            th:href="@{'/submissions?assignmentId=' + ${assignment.id} + '&groupId=' + ${submission.group.id}}">(other submissions)</a>