[build] Bump several Android SDK components (#4819)

System images:
  * x86-29: bumped to release 7

Tools:
  * platform-tools: bumped to v30.0.2

Author: grendello

Configuration.props

@@ -99,7 +99,11 @@
     <AllSupportedTargetAndroidAbis>$(AllSupported32BitTargetAndroidAbis);$(AllSupported64BitTargetAndroidAbis)</AllSupportedTargetAndroidAbis>
     <XABuildToolsVersion>29.0.2</XABuildToolsVersion>
     <XABuildToolsFolder Condition="'$(XABuildToolsFolder)' == ''">29.0.2</XABuildToolsFolder>
-    <XAPlatformToolsVersion>29.0.5</XAPlatformToolsVersion>
+
+    <!-- For some reason, the URL for the *macOS* version of platform-tools 30.0.2 is prefixed with what appears to be a GIT commit hash or some other checksum...
+         Linux and Windows packages don't have any prefix, but the macOS thing forces us to have *some* mechanism to handle this... -->
+    <XAPlatformToolsPackagePrefix Condition=" '$(HostOS)' == 'Darwin' ">b2be9c80582174e645d3736daa0d44d8610b38a8.</XAPlatformToolsPackagePrefix>
+    <XAPlatformToolsVersion>30.0.2</XAPlatformToolsVersion>
     <XAIncludeProprietaryBits Condition="'$(XAIncludeProprietaryBits)' == ''">False</XAIncludeProprietaryBits>
     <XABundleToolVersion Condition="'$(XABundleToolVersion)' == ''">0.14.0</XABundleToolVersion>
     <XAManifestMergerToolVersion Condition="'$(XAManifestMergerToolVersion)' == ''">26.5.0</XAManifestMergerToolVersion>

build-tools/xaprepare/xaprepare/Application/KnownProperties.cs

@@ -44,5 +44,6 @@ static class KnownProperties
 		public const string XAInstallPrefix                     = "XAInstallPrefix";
 		public const string XAPackagesDir                       = "XAPackagesDir";
 		public const string XAPlatformToolsVersion              = "XAPlatformToolsVersion";
+		public const string XAPlatformToolsPackagePrefix        = "XAPlatformToolsPackagePrefix";
 	}
 }

build-tools/xaprepare/xaprepare/Application/Properties.Defaults.cs.in

@@ -48,6 +48,7 @@ namespace Xamarin.Android.Prepare
 			properties.Add (KnownProperties.XAInstallPrefix,                     StripQuotes (@"@XAInstallPrefix@"));
 			properties.Add (KnownProperties.XAPackagesDir,                       StripQuotes (@"@XAPackagesDir@"));
 			properties.Add (KnownProperties.XAPlatformToolsVersion,              StripQuotes ("@XAPlatformToolsVersion@"));
+			properties.Add (KnownProperties.XAPlatformToolsPackagePrefix,        StripQuotes ("@XAPlatformToolsPackagePrefix@"));
 		}
 
 		string StripQuotes (string input)

build-tools/xaprepare/xaprepare/ConfigAndData/Dependencies/AndroidToolchain.cs

@@ -24,7 +24,24 @@ public AndroidToolchain ()
 			string XABuildToolsFolder      = GetRequiredProperty (KnownProperties.XABuildToolsFolder);
 			string XABuildToolsVersion     = GetRequiredProperty (KnownProperties.XABuildToolsVersion);
 			string XAPlatformToolsVersion  = GetRequiredProperty (KnownProperties.XAPlatformToolsVersion);
+			string XAPlatformToolsPackagePrefix = Context.Instance.Properties [KnownProperties.XAPlatformToolsPackagePrefix] ?? String.Empty;
 
+			// Upstream manifests with version information:
+			//
+			//  https://dl-ssl.google.com/android/repository/repository2-1.xml
+			//    * platform APIs
+			//    * build-tools
+			//    * command-line tools
+			//    * sdk-tools
+			//    * platform-tools
+			//
+			//  https://dl-ssl.google.com/android/repository/addon2-1.xml
+			//    * android_m2repository_r47
+			//
+			//  https://dl-ssl.google.com/android/repository/sys-img/android/sys-img2-1.xml
+			//  https://dl-ssl.google.com/android/repository/sys-img/google_apis/sys-img2-1.xml
+			//    * system images
+			//
 			Components = new List<AndroidToolchainComponent> {
 				new AndroidPlatformComponent ("android-2.3.3_r02", apiLevel: "10", pkgRevision: "2"),
 				new AndroidPlatformComponent ("android-15_r05",    apiLevel: "15", pkgRevision: "5"),
@@ -46,13 +63,13 @@ public AndroidToolchain ()
 
 				new AndroidToolchainComponent ("docs-24_r01",                                       destDir: "docs", pkgRevision: "1"),
 				new AndroidToolchainComponent ("android_m2repository_r47",                          destDir: Path.Combine ("extras", "android", "m2repository"), pkgRevision: "47.0.0"),
-				new AndroidToolchainComponent ("x86-29_r06",                                        destDir: Path.Combine ("system-images", "android-29", "default", "x86"), relativeUrl: new Uri ("sys-img/android/", UriKind.Relative), pkgRevision: "6"),
+				new AndroidToolchainComponent ($"x86-29_r07-{osTag}",                               destDir: Path.Combine ("system-images", "android-29", "default", "x86"), relativeUrl: new Uri ("sys-img/android/", UriKind.Relative), pkgRevision: "7"),
 				new AndroidToolchainComponent ($"x86_64-29_r07-{osTag}",                            destDir: Path.Combine ("system-images", "android-29", "default", "x86_64"), relativeUrl: new Uri ("sys-img/android/", UriKind.Relative), pkgRevision: "7"),
 				new AndroidToolchainComponent ($"android-ndk-r{AndroidNdkVersion}-{osTag}-x86_64",  destDir: AndroidNdkDirectory, pkgRevision: AndroidPkgRevision),
 				new AndroidToolchainComponent ($"build-tools_r{XABuildToolsVersion}-{altOsTag}",    destDir: Path.Combine ("build-tools", XABuildToolsFolder), isMultiVersion: true),
 				new AndroidToolchainComponent ($"commandlinetools-{cltOsTag}-{CommandLineToolsVersion}",
 					destDir: Path.Combine ("cmdline-tools", CommandLineToolsFolder), isMultiVersion: true),
-				new AndroidToolchainComponent ($"platform-tools_r{XAPlatformToolsVersion}-{osTag}", destDir: "platform-tools", pkgRevision: XAPlatformToolsVersion),
+				new AndroidToolchainComponent ($"{XAPlatformToolsPackagePrefix}platform-tools_r{XAPlatformToolsVersion}-{osTag}", destDir: "platform-tools", pkgRevision: XAPlatformToolsVersion),
 				new AndroidToolchainComponent ($"sdk-tools-{osTag}-4333796",                        destDir: "tools", pkgRevision: "26.1.1"),
 				new AndroidToolchainComponent ($"emulator-{osTag}-{EmulatorVersion}",               destDir: "emulator", pkgRevision: EmulatorPkgRevision),
 				new AndroidToolchainComponent ($"cmake-{AndroidCmakeVersion}-{osTag}-x86_64",       destDir: Path.Combine ("cmake", AndroidCmakeVersionPath), isMultiVersion: true, noSubdirectory: true, pkgRevision: "3.10.2"),

build-tools/xaprepare/xaprepare/xaprepare.targets

@@ -80,6 +80,7 @@
       <Replacement Include="@XAPlatformToolsVersion@=$(XAPlatformToolsVersion)" />
       <Replacement Include="@XAInstallPrefix@=$(XAInstallPrefix)" />
       <Replacement Include="@XABinRelativeInstallPrefix@=$(_XABinRelativeInstallPrefix)" />
+      <Replacement Include="@XAPlatformToolsPackagePrefix@=$(XAPlatformToolsPackagePrefix)" />
     </ItemGroup>
 
     <ReplaceFileContents