Merge pull request #192 from tmc-cli/fixing-matike

Fixing matike

Author: mikkomaa

src/main/java/fi/helsinki/cs/tmc/cli/command/ListExercisesCommand.java

@@ -40,7 +40,7 @@ public void run(String[] args, Io io) {
                 courseName = courseinfo.getCourseName();
 
             } else  {
-                this.io.println("USAGE: tmc exercise COURSE");
+                this.io.println("USAGE: tmc list-exercises COURSE");
                 this.io.println("No course specified. Either run the command "
                         + "inside a course directory or enter\n"
                         + "the course as a parameter.");

src/main/java/fi/helsinki/cs/tmc/cli/command/UpdateCommand.java

@@ -14,6 +14,7 @@
 import fi.helsinki.cs.tmc.core.domain.Course;
 import fi.helsinki.cs.tmc.core.domain.Exercise;
 
+import java.nio.file.Path;
 import java.util.List;
 
 @Command(name = "update", desc = "Update exercises")
@@ -39,7 +40,14 @@ public void run(String[] args, Io io) {
         if (core == null) {
             return;
         }
+
         DirectoryUtil dirUtil = new DirectoryUtil();
+
+        if (dirUtil.getCourseDirectory() == null) {
+            io.println("Not a course directory");
+            return;
+        }
+
         CourseInfo info = CourseInfoIo.load(dirUtil.getConfigFile());
         Course course = info.getCourse();
         List<Exercise> exercises;
@@ -60,5 +68,7 @@ public void run(String[] args, Io io) {
         for (Exercise exercise : exercises) {
             io.println(exercise.getName());
         }
+
+        System.out.println(TmcUtil.downloadExercises(core, exercises));
     }
 }