[GR-54832] Print build artifact sizes in the build output.

Author: pdekanov

docs/reference-manual/native-image/BuildOutput.md

@@ -97,10 +97,10 @@ Recommendations:
    1.3s (4.8% of total time) in 88 GCs | Peak RSS: 2.14GiB | CPU load: 18.03
 --------------------------------------------------------------------------------
 Build artifacts:
- /home/janedoe/helloworld/gdb-debughelpers.py (debug_info)
- /home/janedoe/helloworld/helloworld (executable)
- /home/janedoe/helloworld/helloworld.debug (debug_info)
- /home/janedoe/helloworld/sources (debug_info)
+ /home/janedoe/helloworld/gdb-debughelpers.py (debug_info, 80.60KiB)
+ /home/janedoe/helloworld/helloworld (executable, 6.88MiB)
+ /home/janedoe/helloworld/helloworld.debug (debug_info, 6.66MiB)
+ /home/janedoe/helloworld/sources (debug_info, 37.61MiB)
 ================================================================================
 Finished generating 'helloworld' in 25.5s.
 ```

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/ProgressReporter.java

@@ -53,9 +53,6 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import com.oracle.svm.core.RuntimeAssertionsSupport;
-import com.oracle.svm.core.util.UserError;
-import com.oracle.svm.util.LogUtils;
 import org.graalvm.nativeimage.ImageSingletons;
 import org.graalvm.nativeimage.hosted.Feature;
 import org.graalvm.nativeimage.impl.ImageSingletonsSupport;
@@ -71,6 +68,7 @@
 import com.oracle.svm.common.option.CommonOptionParser;
 import com.oracle.svm.core.BuildArtifacts;
 import com.oracle.svm.core.BuildArtifacts.ArtifactType;
+import com.oracle.svm.core.RuntimeAssertionsSupport;
 import com.oracle.svm.core.SubstrateGCOptions;
 import com.oracle.svm.core.SubstrateOptions;
 import com.oracle.svm.core.SubstrateUtil;
@@ -93,6 +91,7 @@
 import com.oracle.svm.core.traits.SingletonLayeredInstallationKind.Independent;
 import com.oracle.svm.core.traits.SingletonTraits;
 import com.oracle.svm.core.util.TimeUtils;
+import com.oracle.svm.core.util.UserError;
 import com.oracle.svm.core.util.VMError;
 import com.oracle.svm.hosted.ProgressReporterFeature.UserRecommendation;
 import com.oracle.svm.hosted.ProgressReporterJsonHelper.AnalysisResults;
@@ -108,6 +107,7 @@
 import com.oracle.svm.hosted.util.DiagnosticUtils;
 import com.oracle.svm.hosted.util.VMErrorReporter;
 import com.oracle.svm.util.ImageBuildStatistics;
+import com.oracle.svm.util.LogUtils;
 import com.sun.management.OperatingSystemMXBean;
 
 import jdk.graal.compiler.options.OptionDescriptor;
@@ -907,7 +907,32 @@ private void printArtifacts(BuildArtifacts artifacts) {
                 pathToTypes.computeIfAbsent(path, p -> new ArrayList<>()).add(artifactType.name().toLowerCase(Locale.ROOT));
             }
         });
-        pathToTypes.forEach((path, typeNames) -> l().a(" ").link(path).dim().a(" (").a(String.join(", ", typeNames)).a(")").reset().println());
+        pathToTypes.forEach((path, typeNames) -> {
+            String artifactTypesString = String.join(", ", typeNames);
+            long artifactSize = getArtifactSize(path);
+            String artifactSizeString = artifactSize >= 0 ? ByteFormattingUtil.bytesToHuman(artifactSize) : "unknown size";
+            l().a(" ").link(path).dim().a(" (").a(artifactTypesString).a(", ").a(artifactSizeString).a(")").reset().println();
+        });
+    }
+
+    private static long getArtifactSize(Path artifactPath) {
+        try {
+            if (Files.isRegularFile(artifactPath)) {
+                return Files.size(artifactPath);
+            } else {
+                try (Stream<Path> artifactDirectorySubPaths = Files.walk(artifactPath)) {
+                    return artifactDirectorySubPaths.filter(Files::isRegularFile).mapToLong(filePath -> {
+                        try {
+                            return Files.size(filePath);
+                        } catch (IOException e) {
+                            return 0;
+                        }
+                    }).sum();
+                }
+            }
+        } catch (IOException e) {
+            return -1;
+        }
     }
 
     private Path reportBuildOutput(Path jsonOutputFile) {