SOLR-15862 Move solr/LICENSE.txt and SOLR/NOTICE.txt to git top-level (#532)

Author: janhoy

LICENSE

@@ -558,10 +558,9 @@ def verifyUnpacked(java, artifact, unpackPath, gitRevision, version, testArgs):
   if isSrc:
     in_solr_folder.extend(os.listdir(os.path.join(unpackPath, 'solr')))
     is_in_list(in_root_folder, ['LICENSE', 'NOTICE', 'README'])
-    is_in_list(in_solr_folder, ['JRE_VERSION_MIGRATION', 'CHANGES', 'MIGRATE', 'SYSTEM_REQUIREMENTS'])
+    is_in_list(in_solr_folder, ['CHANGES', 'README'])
   else:
-    is_in_list(in_root_folder, ['LICENSE', 'NOTICE', 'README', 'JRE_VERSION_MIGRATION', 'CHANGES',
-                                'MIGRATE', 'SYSTEM_REQUIREMENTS'])
+    is_in_list(in_root_folder, ['LICENSE', 'NOTICE', 'README', 'CHANGES'])
 
   if SOLR_NOTICE is None:
     SOLR_NOTICE = open('%s/NOTICE.txt' % unpackPath, encoding='UTF-8').read()

solr/LICENSE.txt LICENSE.txt

@@ -22,7 +22,7 @@ subprojects {
     // per-project.
     def title = "Apache Solr Search Server: ${project.name}"
     def implementationTitle = "org.apache.solr"
-    def legaleseDir = project(":solr").projectDir
+    def legaleseDir = rootDir
 
     // Apply the manifest to any JAR or WAR file created by any project,
     // excluding those explicitly listed.

solr/NOTICE.txt NOTICE.txt

@@ -92,13 +92,16 @@ distributions {
     contents {
       // TODO: This is missing module README files, as compared to 8x
 
+      from(rootDir, {
+        include "LICENSE.txt"
+        include "NOTICE.txt"
+      })
+
       from(project(":solr").projectDir, {
         include "bin/**"
         include "licenses/**"
         exclude "licenses/README.committers.txt"
         include "CHANGES.txt"
-        include "LICENSE.txt"
-        include "NOTICE.txt"
         include "README.md"
       })