Placed build info files in their own directory

Bug: 135998756
Test: Output files exist in new directory.
Change-Id: Idaee9119391f83f1159ce03b0de764c0a6220fc6
(cherry picked from commit 39cc7ca196a768ab2d7d7baf808cfff7f43804e9)

buildSrc/src/main/kotlin/androidx/build/AndroidXPlugin.kt

diff --git a/buildSrc/src/main/kotlin/androidx/build/AndroidXPlugin.kt b/buildSrc/src/main/kotlin/androidx/build/AndroidXPlugin.kt
index 70177ca..031b8dd 100644
--- a/buildSrc/src/main/kotlin/androidx/build/AndroidXPlugin.kt
+++ b/buildSrc/src/main/kotlin/androidx/build/AndroidXPlugin.kt
@@ -70,6 +70,13 @@
 import java.util.concurrent.ConcurrentHashMap
 
 /**
+ * Setting this property indicates that a build is being performed to check for forward
+ * compatibility.
+ */
+const val USE_MAX_DEP_VERSIONS = "useMaxDepVersions"
+const val BUILD_INFO_DIR = "build-info"
+
+/**
  * A plugin which enables all of the Gradle customizations for AndroidX.
  * This plugin reacts to other plugins being added and adds required and optional functionality.
  */
@@ -521,7 +528,7 @@
                     CREATE_LIBRARY_BUILD_INFO_FILES_TASK,
                     CreateLibraryBuildInfoFileTask::class.java
                 ) {
-                    it.outputFile.set(File(project.getDistributionDirectory(),
+                    it.outputFile.set(File(project.getBuildInfoDirectory(),
                         "${project.group}_${project.name}_build_info.txt"))
                 }
                 project.rootProject.tasks.named(CREATE_LIBRARY_BUILD_INFO_FILES_TASK).configure {

buildSrc/src/main/kotlin/androidx/build/BuildServerConfiguration.kt

diff --git a/buildSrc/src/main/kotlin/androidx/build/BuildServerConfiguration.kt b/buildSrc/src/main/kotlin/androidx/build/BuildServerConfiguration.kt
index 490b619..50c2bec 100644
--- a/buildSrc/src/main/kotlin/androidx/build/BuildServerConfiguration.kt
+++ b/buildSrc/src/main/kotlin/androidx/build/BuildServerConfiguration.kt
@@ -45,6 +45,12 @@
 }
 
 /**
+ * Directory to put build info files for release service dependency files.
+ */
+fun Project.getBuildInfoDirectory(): File =
+        File(getDistributionDirectory(), "build-info")
+
+/**
  * Directory to put host test results so they can be consumed by the testing dashboard.
  */
 fun Project.getHostTestResultDirectory(): File =

buildSrc/src/main/kotlin/androidx/build/CreateLibraryBuildInfoFileTask.kt

diff --git a/buildSrc/src/main/kotlin/androidx/build/CreateLibraryBuildInfoFileTask.kt b/buildSrc/src/main/kotlin/androidx/build/CreateLibraryBuildInfoFileTask.kt
index 83a3906..0e12bcd 100644
--- a/buildSrc/src/main/kotlin/androidx/build/CreateLibraryBuildInfoFileTask.kt
+++ b/buildSrc/src/main/kotlin/androidx/build/CreateLibraryBuildInfoFileTask.kt
@@ -46,10 +46,10 @@
     }
 
     private fun writeJsonToFile(info: LibraryBuildInfoFile) {
-        if (!project.getDistributionDirectory().exists()) {
-            if (!project.getDistributionDirectory().mkdirs()) {
+        if (!project.getBuildInfoDirectory().exists()) {
+            if (!project.getBuildInfoDirectory().mkdirs()) {
                 throw RuntimeException("Failed to create " +
-                        "output directory: ${project.getDistributionDirectory()}")
+                        "output directory: ${project.getBuildInfoDirectory()}")
             }
         }
         var resolvedOutputFile: File = outputFile.get()