Fix task ordering bug.

Fixes https://github.com/cbeust/kobalt/issues/276

modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/TaskManager.kt

@@ -274,6 +274,17 @@ class TaskManager @Inject constructor(val args: Args,
         val newToProcess = arrayListOf<T>()
         val seen = hashSetOf<String>()
 
+
+        // Make each task depend on the previous one, so that command line tasks are executed in the
+        // order the user specified them
+        passedTasks.zip(passedTasks.drop(1)).forEach { pair ->
+            nodeMap[pair.first.taskName].forEach { first ->
+                nodeMap[pair.second.taskName].forEach { second ->
+                    result.addEdge(second, first)
+                }
+            }
+        }
+
         //
         // Reverse the always map so that tasks can be looked up.
         //

src/test/kotlin/com/beust/kobalt/internal/BuildOrderTest.kt

@@ -101,12 +101,19 @@ class BuildOrderTest @Inject constructor(val taskManager: TaskManager) {
         }
     }
 
-    @Test
-    fun shouldBuildInRightOrder3() {
+    @DataProvider
+    fun tasks3(): Array<Array<out Any>> {
+        return arrayOf(
+                arrayOf(listOf("exec", "run"), listOf("p1:exec", "p1:run")),
+                arrayOf(listOf("run", "exec"), listOf("p1:run", "p1:exec"))
+        )
+    }
+
+    @Test(dataProvider = "tasks3")
+    fun shouldBuildInRightOrder3(tasks: List<String>, expectedTasks: List<String>) {
         val p1 = project { name = "p1" }
-        val expectedTasks = listOf("p1:run", "p1:exec")
         with(taskManager) {
-            with(calculateDependentTaskNames(listOf("run", "exec"), listOf(p1))) {
+            with(calculateDependentTaskNames(tasks, listOf(p1))) {
                 assertThat(this.map { it.id }).isEqualTo(expectedTasks)
             }
         }