From e992d8b93564ede50bd1a4ab364c85c03442ecf3 Mon Sep 17 00:00:00 2001
From: Cedric Beust <cedric@beust.com>
Date: Tue, 17 Nov 2015 23:16:00 -0800
Subject: [PATCH] Disallow same project names.

---
 .../com/beust/kobalt/kotlin/BuildFileCompiler.kt    | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/main/kotlin/com/beust/kobalt/kotlin/BuildFileCompiler.kt b/src/main/kotlin/com/beust/kobalt/kotlin/BuildFileCompiler.kt
index 945e4d98..b15eaba8 100644
--- a/src/main/kotlin/com/beust/kobalt/kotlin/BuildFileCompiler.kt
+++ b/src/main/kotlin/com/beust/kobalt/kotlin/BuildFileCompiler.kt
@@ -62,6 +62,17 @@ public class BuildFileCompiler @Inject constructor(@Assisted("buildFiles") val b
         return allProjects
     }
 
+    private fun validateProjects(projects: List<Project>) {
+        val seen = hashSetOf<String>()
+        projects.forEach {
+            if (seen.contains(it.name)) {
+                throw KobaltException("Duplicate project name: $it")
+            } else {
+                seen.add(it.name)
+            }
+        }
+    }
+
     private fun findProjects(context: KobaltContext): List<Project> {
         val result = arrayListOf<Project>()
         buildFiles.forEach { buildFile ->
@@ -255,6 +266,8 @@ public class BuildFileCompiler @Inject constructor(@Assisted("buildFiles") val b
             stream?.close()
         }
 
+        validateProjects(projects)
+
         //
         // Now that the build file has run, fetch all the project contributors, grab the projects from them and sort
         // them topologically