add public clone possibility

src/main/java/de/hftstuttgart/rest/v1/task/TaskUpload.java

@@ -118,8 +118,8 @@ public class TaskUpload {
             this.jGitUtil.cloneRepository("http://" + this.modocotProperties.getDockerHostIp()
                     + ":3000/" + this.modocotProperties.getGitTeaUsername() + "/"
                     + assignmentId + ".git",
-                    unit, null, false);
-            this.jGitUtil.cloneRepository(repoUrl, task, credentials, true);
+                    unit, null, true, false);
+            this.jGitUtil.cloneRepository(repoUrl, task, credentials, credentials != null, true);
         }
     }
 }

src/main/java/de/hftstuttgart/rest/v1/unittest/UnitTestUpload.java

@@ -90,7 +90,7 @@ public class UnitTestUpload {
             String credentials = ((lines.size() > 1) && !lines.get(1).equals("")) ?
                     lines.get(1) : null;
             // cloning repository repoUrl into work-directory, using credentials from second line in repo.txt
-            this.jGitUtil.cloneRepository(repoUrl, workDirectory, credentials, true);
+            this.jGitUtil.cloneRepository(repoUrl, workDirectory, credentials, credentials != null,true);
         }
 
         // creating repository on internal giTea, name = assignmentId

src/main/java/de/hftstuttgart/utils/JGitUtil.java

@@ -41,7 +41,7 @@ public class JGitUtil {
      * @param token          AuthToken, when cloning Repository. If {@code null} use {@code ModocotProperties}
      * @param proxy          boolean if a proxy should be used
      */
-    public void cloneRepository(String uriToClone, File cloneDirectory, String token, boolean proxy) {
+    public void cloneRepository(String uriToClone, File cloneDirectory, String token, boolean useToken, boolean proxy) {
         if (!cloneDirectory.isDirectory()) {
             String error = String.format("%s is not a directory, cannot clone", cloneDirectory.getAbsolutePath());
             LOG.error(error);
@@ -50,21 +50,23 @@ public class JGitUtil {
         LOG.info(String.format("Cloning all files from %s into %s", uriToClone, cloneDirectory.getAbsolutePath()));
         try {
             deleteDotGitFolder(cloneDirectory);
-            UsernamePasswordCredentialsProvider credProvider;
-            if (token != null) {
-                LOG.info("Using token: " + token);
-                String[] credentials = token.split(":");
-                credProvider = new UsernamePasswordCredentialsProvider(credentials[0], credentials[1]);
-            } else {
-                LOG.info("Using credentials: " + this.modocotProperties.getGitTeaUsername() + ", " + this.modocotProperties.getGitTeaPassword());
-                credProvider = new UsernamePasswordCredentialsProvider(
-                        this.modocotProperties.getGitTeaUsername(),
-                        this.modocotProperties.getGitTeaPassword());
+            UsernamePasswordCredentialsProvider credProvider = null;
+            if (useToken) {
+                if (token != null) {
+                    LOG.info("Using token: " + token);
+                    String[] credentials = token.split(":");
+                    credProvider = new UsernamePasswordCredentialsProvider(credentials[0], credentials[1]);
+                } else {
+                    LOG.info("Using credentials: " + this.modocotProperties.getGitTeaUsername() + ", " + this.modocotProperties.getGitTeaPassword());
+                    credProvider = new UsernamePasswordCredentialsProvider(
+                            this.modocotProperties.getGitTeaUsername(),
+                            this.modocotProperties.getGitTeaPassword());
+                }
             }
             LOG.info("Starting cloning, url: " + uriToClone);
             setProxy(proxy);
             Git.cloneRepository()
-                    .setCredentialsProvider(credProvider)
+                    .setCredentialsProvider(useToken ? credProvider : null)
                     .setURI(uriToClone)
                     .setDirectory(cloneDirectory)
                     .call()