Export prepareGlog to an internal task (#32421)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/32421

This diff refactors the `prepareGlog` task to a separate Gradle task in the `.internal` package.
The reason for this change is that `prepareGlog` was defining a `doLast` action and would result in being
invalidated whenever the `build.gradle` file would change. This means that the Glog headers/source files
would have been extracted again, effectively invalidating the timestamps for the native build.

Changelog:
[Internal] [Changed] - Export prepareGlog to an internal task

Reviewed By: ShikaSD

Differential Revision: D31661668

fbshipit-source-id: efcd5505a67d6c9f02fcab7a5c3255a160215661

ReactAndroid/build.gradle

@@ -12,6 +12,8 @@ plugins {
     id("de.undercouch.download")
 }
 
+import com.facebook.react.tasks.internal.*
+
 import java.nio.file.Paths
 
 import de.undercouch.gradle.tasks.download.Download
@@ -169,41 +171,11 @@ task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
 
 // Prepare glog sources to be compiled, this task will perform steps that normally should've been
 // executed by automake. This way we can avoid dependencies on make/automake
-task prepareGlog(dependsOn: dependenciesPath ? [] : [downloadGlog], type: Copy) {
-    duplicatesStrategy("warn")
-    from(dependenciesPath ?: tarTree(downloadGlog.dest))
-    from("src/main/jni/third-party/glog/")
-    include("glog-${GLOG_VERSION}/src/**/*", "Android.mk", "config.h")
-    includeEmptyDirs = false
-    filesMatching("**/*.h.in") {
-        filter(ReplaceTokens, tokens: [
-                ac_cv_have_unistd_h           : "1",
-                ac_cv_have_stdint_h           : "1",
-                ac_cv_have_systypes_h         : "1",
-                ac_cv_have_inttypes_h         : "1",
-                ac_cv_have_libgflags          : "0",
-                ac_google_start_namespace     : "namespace google {",
-                ac_cv_have_uint16_t           : "1",
-                ac_cv_have_u_int16_t          : "1",
-                ac_cv_have___uint16           : "0",
-                ac_google_end_namespace       : "}",
-                ac_cv_have___builtin_expect   : "1",
-                ac_google_namespace           : "google",
-                ac_cv___attribute___noinline  : "__attribute__ ((noinline))",
-                ac_cv___attribute___noreturn  : "__attribute__ ((noreturn))",
-                ac_cv___attribute___printf_4_5: "__attribute__((__format__ (__printf__, 4, 5)))"
-        ])
-        it.path = (it.name - ".in")
-    }
-    into("$thirdPartyNdkDir/glog")
-
-    doLast {
-        copy {
-            from(fileTree(dir: "$thirdPartyNdkDir/glog", includes: ["stl_logging.h", "logging.h", "raw_logging.h", "vlog_is_on.h", "**/src/glog/log_severity.h"]).files)
-            includeEmptyDirs = false
-            into("$thirdPartyNdkDir/glog/exported/glog")
-        }
-    }
+final def prepareGlog = tasks.register("prepareGlog", PrepareGlogTask) {
+    it.dependsOn(dependenciesPath ? [] : [downloadGlog])
+    it.glogPath.setFrom(dependenciesPath ?: tarTree(downloadGlog.dest))
+    it.glogVersion.set(GLOG_VERSION)
+    it.outputDir.set(new File(thirdPartyNdkDir, "glog"))
 }
 
 // Create Android.mk library module based on jsc from npm