From 9a5fcd1e38957219b4d374487f1e18d11a45e100 Mon Sep 17 00:00:00 2001
From: Cedric Beust <cedric@beust.com>
Date: Fri, 18 Dec 2015 22:51:48 +0400
Subject: [PATCH] Was recompiling the build file every time.

---
 .../main/kotlin/com/beust/kobalt/internal/build/BuildFile.kt | 5 +++--
 src/main/kotlin/com/beust/kobalt/app/BuildFileCompiler.kt    | 3 +--
 src/main/kotlin/com/beust/kobalt/app/ParsedBuildFile.kt      | 3 ++-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/build/BuildFile.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/build/BuildFile.kt
index 17954ed0..6e7a8976 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/build/BuildFile.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/build/BuildFile.kt
@@ -6,12 +6,13 @@ import java.nio.file.Path
 import java.nio.file.attribute.BasicFileAttributes
 /**
  * Sometimes, build files are moved to temporary files, so we give them a specific name for clarity.
+ * @param path is the path where that file was moved, @param realPath is where the actual file is.
  */
-class BuildFile(val path: Path, val name: String) {
+class BuildFile(val path: Path, val name: String, val realPath: Path = path) {
     public fun exists() : Boolean = Files.exists(path)
 
     public val lastModified : Long
-        get() = Files.readAttributes(path, BasicFileAttributes::class.java).lastModifiedTime().toMillis()
+        get() = Files.readAttributes(realPath, BasicFileAttributes::class.java).lastModifiedTime().toMillis()
 
     public val directory : File get() = path.toFile().directory
 }
diff --git a/src/main/kotlin/com/beust/kobalt/app/BuildFileCompiler.kt b/src/main/kotlin/com/beust/kobalt/app/BuildFileCompiler.kt
index 7653c7f0..c23c9e3e 100644
--- a/src/main/kotlin/com/beust/kobalt/app/BuildFileCompiler.kt
+++ b/src/main/kotlin/com/beust/kobalt/app/BuildFileCompiler.kt
@@ -10,7 +10,6 @@ import com.beust.kobalt.api.PluginProperties
 import com.beust.kobalt.api.Project
 import com.beust.kobalt.internal.PluginInfo
 import com.beust.kobalt.internal.build.BuildFile
-import com.beust.kobalt.app.ParsedBuildFile
 import com.beust.kobalt.internal.build.VersionFile
 import com.beust.kobalt.maven.DependencyManager
 import com.beust.kobalt.misc.KFiles
@@ -83,7 +82,7 @@ public class BuildFileCompiler @Inject constructor(@Assisted("buildFiles") val b
             val modifiedBuildFile = KFiles.createTempFile(".kt")
             KFiles.saveFile(modifiedBuildFile, parsedBuildFile.buildScriptCode)
             maybeCompileBuildFile(context, BuildFile(Paths.get(modifiedBuildFile.path),
-                    "Modified ${Constants.BUILD_FILE_NAME}"),
+                    "Modified ${Constants.BUILD_FILE_NAME}", buildFile.realPath),
                     buildScriptJarFile, pluginUrls)
             val projects = buildScriptUtil.runBuildScriptJarFile(buildScriptJarFile, pluginUrls, context)
             result.addAll(projects)
diff --git a/src/main/kotlin/com/beust/kobalt/app/ParsedBuildFile.kt b/src/main/kotlin/com/beust/kobalt/app/ParsedBuildFile.kt
index 2623db8f..f68745d8 100644
--- a/src/main/kotlin/com/beust/kobalt/app/ParsedBuildFile.kt
+++ b/src/main/kotlin/com/beust/kobalt/app/ParsedBuildFile.kt
@@ -108,7 +108,8 @@ class ParsedBuildFile(val buildFile: BuildFile, val context: KobaltContext, val
         val buildScriptJarFile = File(buildScriptJar)
         if (! buildScriptUtil.isUpToDate(buildFile, File(buildScriptJar))) {
             buildScriptJarFile.parentFile.mkdirs()
-            generateJarFile(context, BuildFile(Paths.get(pluginSourceFile.path), "Plugins"), buildScriptJarFile)
+            generateJarFile(context, BuildFile(Paths.get(pluginSourceFile.path), "Plugins",
+                    Paths.get(buildScriptJar)), buildScriptJarFile)
             VersionFile.generateVersionFile(buildScriptJarFile.parentFile)
         }