Metadata that makes it possible to upgrade to renamed EDM.

* Added manifest from 1.2.137 so that it's possible to clean up old
  components of EDM before it was renamed. This manifest must be at
  the old location so old versions of the Version Handler
  (i.e in memory) can perform the first phase of the upgrade process.
* Added manifestname to the manifest so that it's possible to
  associate the previous manifest play-services-resolver_vx.x.x.x.txt
  with the new manifest external-dependency-managervx.x.x.x.txt.
* Added the exportpath to all files in the package so they can be
  moved in a project and still manageed by the Version Handler.
* Bumped the version number in preparation for release.

Bug: 150886091
Change-Id: I8b43191645e5b053172c0370bcde9c1aa6810699

Author: Stewart Miles

build.gradle

@@ -189,6 +189,8 @@ project.ext {
   pluginExportFile = new File(buildDir, "plugin.unitypackage")
   // Directory within the plugin staging area that just contains the plugin.
   pluginAssetsDir = new File("Assets", "ExternalDependencyManager")
+  // Directories within the staging area to export.
+  pluginExportDirs = [pluginAssetsDir, new File("Assets", "PlayServicesResolver")]
   // Directory within the plugin directory that contains the managed DLLs.
   pluginEditorDllDir = new File(pluginAssetsDir, "Editor")
   // Directory which contains the solution for all C# projects with a project in
@@ -197,7 +199,7 @@ project.ext {
   // Solution which references all projects used by the plugin.
   pluginSolutionFile = new File(pluginSourceDir, "ExternalDependencyManager.sln")
   // Version of the plugin (update this with CHANGELOG.md on each release).
-  pluginVersion = "1.2.137.0"
+  pluginVersion = "1.2.138.0"
   // Semantic version of the plugin.
   pluginVersionSemVer = pluginVersion.tokenize(".")[0..2].join(".")
   // Base filename of the released plugin.
@@ -525,6 +527,7 @@ File copyAssetMetadataFile(File sourceFile, File targetFile) {
   // Parse the existing version from the asset metadata.
   def folderAssetRegEx = /^folderAsset:\s+yes\s*$/
   def versionRegEx = /^(-\s+gvh_version-)([a-zA-Z0-9.]+)\s*$/
+  def exportPathRegEx = /^(-\s+gvhp_exportpath-)(.*)$/
   Boolean isFolder = false
   String currentVersion = ""
   lines.each { String line ->
@@ -536,15 +539,19 @@ File copyAssetMetadataFile(File sourceFile, File targetFile) {
       isFolder = true
     }
   }
+  Boolean isNotVersioned = (isFolder ||
+                            targetFile.name.startsWith(
+                                "play-services-resolver"))
   // Ignore folder assets, they don't need to be versioned.
-  if (isFolder) return copyFile(sourceFile, targetFile)
+  if (isNotVersioned) return copyFile(sourceFile, targetFile)
   Boolean versionChanged = currentVersion != project.ext.pluginVersion
 
   List<String> outputLines = []
   lines.each { line ->
     if (versionChanged) {
       def guidMatch = (line =~ /^(guid:)\s+(.*)/)
       def versionLabelMatch = (line =~ versionRegEx)
+      def exportPathMatch = (line =~ exportPathRegEx)
       if (guidMatch.matches() && sourceFile.name != targetFile.name) {
         // Update the metadata's GUID.
         // If a file is renamed we want to make sure Unity imports it as a new
@@ -553,11 +560,16 @@ File copyAssetMetadataFile(File sourceFile, File targetFile) {
           "%s %s",
           guidMatch.group(1),
           java.util.UUID.randomUUID().toString().replace("-", ""))
-      }
-      else if (versionLabelMatch.matches()) {
+      } else if (versionLabelMatch.matches()) {
         // Update the version metadata for the asset.
         line = sprintf("%s%s", versionLabelMatch.group(1),
                        project.ext.pluginVersion)
+      } else if (exportPathMatch.matches()) {
+        // Update the export path of the asset.
+        line = sprintf("%s%s", exportPathMatch.group(1),
+                       targetFile.path.replaceFirst(/.*\/Assets\//, "Assets/"))
+        line = line.substring(0, line.length() -
+                              project.ext.unityMetadataExtension.length())
       }
     }
     outputLines.add(line)
@@ -1136,7 +1148,13 @@ Task copyPluginTemplateToStagingArea = createCopyFilesTask(
    new File(new File(new File("Assets", "ExternalDependencyManager"), "Editor"),
             "GoogleRegistries.xml"),
    new File(new File(new File("Assets", "ExternalDependencyManager"), "Editor"),
-            "GoogleRegistries.xml.meta")],
+            "GoogleRegistries.xml.meta"),
+   new File("Assets", "PlayServicesResolver.meta"),
+   new File(new File("Assets", "PlayServicesResolver"), "Editor.meta"),
+   new File(new File(new File("Assets", "PlayServicesResolver"), "Editor"),
+            "play-services-resolver_v1.2.137.0.txt"),
+   new File(new File(new File("Assets", "PlayServicesResolver"), "Editor"),
+            "play-services-resolver_v1.2.137.0.txt.meta")],
   project.ext.pluginTemplateDir, project.ext.pluginStagingAreaDir,
   [preparePluginStagingAreaDir],
   { sourceFile, targetFile -> copyAssetMetadataFile(sourceFile, targetFile) })
@@ -1172,11 +1190,7 @@ task copyPluginComponentsToStagingArea(
 task generatePluginManifest(dependsOn: [preparePluginStagingAreaDir,
                                         copyPluginTemplateToStagingArea,
                                         copyPluginComponentsToStagingArea]) {
-  // This should use currentPluginBasename when we have support for plugin
-  // aliases which will allow the detection of a play-services-resolver
-  // plugin to be upgraded to external-dependency-manager.
-  String unversionedManifestName =
-    "play-services-resolver" /* currentPluginBasename */ + ".txt"
+  String unversionedManifestName = currentPluginBasename + ".txt"
   File outputDir = new File(project.ext.pluginStagingAreaDir,
                             project.ext.pluginEditorDllDir.path)
   File manifestMetadataTemplateFile =
@@ -1217,8 +1231,8 @@ Task buildPlugin = createUnityTask(
     project.ext.buildDir,
     ["-g.building",
      "-buildTarget", "android",
-     "-exportPackage", project.ext.pluginAssetsDir.path,
-     project.ext.pluginExportFile.absolutePath,
+     "-exportPackage"] + (project.ext.pluginExportDirs.collect { it.path }) +
+    [project.ext.pluginExportFile.absolutePath,
      "-gvh_disable",
      "-quit"], true, null)
 buildPlugin.with {
@@ -1263,7 +1277,9 @@ task releasePlugin(dependsOn: buildPlugin) {
     copy {
       from project.ext.pluginStagingAreaDir
       into project.ext.pluginExplodedDir
-      include (project.ext.pluginAssetsDir.path + "/**/*")
+      include project.ext.pluginExportDirs.collect {
+        it.path + "/**/*"
+      }
     }
     pluginTemplateFilesMap.each {
       sourceFile, targetFile -> copyFile(sourceFile, targetFile)