Add SINGLE_FILE statistic option

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinProperties.kt

@@ -49,9 +49,13 @@ internal class PropertiesProvider private constructor(private val project: Proje
         }
     }
 
+    @Deprecated(message = "Please use kotlin.build.report.output=SINGLE_FILE and kotlin.build.report.single_file ")
     val singleBuildMetricsFile: File?
         get() = property("kotlin.internal.single.build.metrics.file")?.let { File(it) }
 
+    val buildReportSingleFile: File?
+        get() = property("kotlin.build.report.single_file")?.let { File(it) }
+
     @Deprecated(message = "Please use kotlin.build.report.output instead ")
     val buildReportEnabled: Boolean
         get() {

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/report/BuildMetricsReporterService.kt

@@ -134,10 +134,7 @@ abstract class BuildMetricsReporterService : BuildService<BuildMetricsReporterSe
             }
 
             val reportingSettings = reportingSettings(project.rootProject)
-            if (reportingSettings.buildReportOutputs.isEmpty()
-                && reportingSettings.fileReportSettings == null
-                && reportingSettings.metricsOutputFile == null
-            ) {
+            if (reportingSettings.buildReportOutputs.isEmpty()) {
                 return null
             }
 
@@ -146,8 +143,8 @@ abstract class BuildMetricsReporterService : BuildService<BuildMetricsReporterSe
                 reportingSettings.fileReportSettings?.let { fileReportSettings ->
                     buildDataProcessors.add(PlainTextBuildReportWriterDataProcessor(fileReportSettings, project.rootProject.name))
                 }
-                reportingSettings.metricsOutputFile?.let { metricsOutputFile ->
-                    buildDataProcessors.add(MetricsWriter(metricsOutputFile.absoluteFile))
+                reportingSettings.singleOutputFile?.let { singleOutputFile ->
+                    buildDataProcessors.add(MetricsWriter(singleOutputFile.absoluteFile))
                 }
 
                 it.parameters.startParameters = getStartParameters(project)

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/report/BuildReportType.kt

@@ -10,7 +10,8 @@ import java.io.Serializable
 enum class BuildReportType : Serializable {
     FILE,
     HTTP,
-    BUILD_SCAN;
+    BUILD_SCAN,
+    SINGLE_FILE;
 
     companion object {
         const val serialVersionUID: Long = 0

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/report/ReportingSettings.kt

@@ -9,12 +9,12 @@ import java.io.File
 import java.io.Serializable
 
 data class ReportingSettings(
-    val metricsOutputFile: File? = null,
     val buildReportOutputs: List<BuildReportType> = emptyList(),
     val buildReportMode: BuildReportMode = BuildReportMode.NONE,
     val buildReportLabel: String? = null,
     val fileReportSettings: FileReportSettings? = null,
-    val httpReportSettings: HttpReportSettings? = null
+    val httpReportSettings: HttpReportSettings? = null,
+    val singleOutputFile: File? = null
 ) : Serializable {
     companion object {
         const val serialVersionUID: Long = 1

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/report/configureReporing.kt

@@ -13,7 +13,7 @@ internal fun reportingSettings(rootProject: Project): ReportingSettings {
     val buildReportOutputTypes = properties.buildReportOutputs.map {
         BuildReportType.values().firstOrNull { brt -> brt.name == it.trim().toUpperCase() }
             ?: throw IllegalStateException("Unknown output type: $it")
-    }
+    }.toMutableList() //temporary solution. support old property
     val buildReportMode =
         when {
             buildReportOutputTypes.isEmpty() -> BuildReportMode.NONE
@@ -36,14 +36,21 @@ internal fun reportingSettings(rootProject: Project): ReportingSettings {
     } else {
         null
     }
-    val metricsOutputFile = properties.singleBuildMetricsFile
+
+    //temporary solution. support old property
+    val oldSingleBuildMetric =  properties.singleBuildMetricsFile?.also { buildReportOutputTypes.add(BuildReportType.SINGLE_FILE) }
+
+    val singleOutputFile = if (buildReportOutputTypes.contains(BuildReportType.SINGLE_FILE)) {
+        properties.buildReportSingleFile ?: oldSingleBuildMetric
+    } else null
+
     return ReportingSettings(
-        metricsOutputFile = metricsOutputFile,
         buildReportMode = buildReportMode,
         buildReportLabel = properties.buildReportLabel,
         fileReportSettings = fileReportSettings,
         httpReportSettings = httpReportSettings,
-        buildReportOutputs = buildReportOutputTypes
+        buildReportOutputs = buildReportOutputTypes,
+        singleOutputFile = singleOutputFile,
     )
 }