LUCENE-9382: update gradle to 6.4.1. (#1549)

* LUCENE-9382: update gradle to 6.4.1. Requires minor changes around log call validation by restructuring the code around switches to a series of ifs. Piggybacking: apply log validation to :solr modules. Add inputs declaration so that task is not re-run on unmodified files.

gradle/validation/check-environment.gradle

@@ -22,7 +22,7 @@ import org.gradle.util.GradleVersion
 
 configure(rootProject) {
   ext {
-    expectedGradleVersion = '6.0.1'
+    expectedGradleVersion = '6.4.1'
     minJavaVersion = JavaVersion.VERSION_11
   }
 

gradle/validation/validate-log-calls.gradle

@@ -34,11 +34,13 @@ import org.apache.tools.ant.BuildException
 
 // See the associated help task "gradlew helpValidateLogCalls"
 
-allprojects {
+configure(subprojects.findAll { it.path.startsWith(':solr') }) {
   plugins.withType(JavaPlugin) {
     task validateLogCalls(type: ValidateLogCallsTask) {
       description "Checks that log calls are either validated or conform to efficient patterns."
       group "verification"
+
+      sourceFiles = files(sourceSets*.java)
     }
   }
 }
@@ -53,6 +55,7 @@ class ValidateLogCallsTask extends DefaultTask {
     violations.add(System.lineSeparator + msg);
     errsFound++;
   }
+
   // We have a log.something line, check for patterns we're not fond of.
   def checkLine(File file, String line, int lineNumber, String previous) {
     boolean violation = false
@@ -204,31 +207,35 @@ class ValidateLogCallsTask extends DefaultTask {
           reportViolation("Bad state, should be 0-1 in the switch statement") // make people aware the code sucks
           break
       }
-      switch (state) { // It's just easier to do this here rather than read another line in the switch above.
-        case 0: // Not collcting a log line
+
+      // It's just easier to do this here rather than read another line in the switch above.
+      if (state == 0) {
+          // Not collecting a log line
           prevLine = line.toLowerCase();
-          break;
-        case 1: // collecting a logging line.
-          break;
-        case 2: // We've collected the complete log line.
+      } else if (state == 1) {
+          // collecting a logging line.
+      } else if (state == 2) {
+          // We've collected the complete log line.
           checkLine(file, sb.toString(), lineNumber, prevLine)
           state = 0
-          break;
-        default:
-          break;
+      } else {
+          assert false
       }
     }
-    return
+  }
+
+  @InputFiles
+  FileCollection sourceFiles
+
+  ValidateLogCallsTask() {
+    // No explicit outputs (outputs always up to date).
+    outputs.upToDateWhen { true }
   }
 
   @TaskAction
   def checkLogLines() {
-
-    project.sourceSets.each { srcSet ->
-      srcSet.java.each { f ->
-        checkFile(f)
-      }
-    }
+    sourceFiles.each { checkFile(it) }
+    logger.warn("Checked: ${sourceFiles.files.size()}")
 
     if (errsFound > 0) {
       throw new BuildException(String.format(Locale.ENGLISH, 'Found %d violations in source files (%s).',

gradle/wrapper/gradle-wrapper.jar.sha256

@@ -1 +1 @@
-28b330c20a9a73881dfe9702df78d4d78bf72368e8906c70080ab6932462fe9e
+70239e6ca1f0d5e3b2808ef6d82390cf9ad58d3a3a0d271677a51d1b89475857

gradle/wrapper/gradle-wrapper.jar.version

@@ -1 +1 @@
-6.0.1
+6.4.1

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.0.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists