SOLR-14847: Create Solr Server TGZ (#1844)

Create new targets for building solr binary release artifacts:

gradlew -p solr/packaging distTar distZip

Co-authored-by: Houston Putman <houston@apache.org>
Co-authored-by: Dawid Weiss <dawid.weiss@carrotsearch.com>
Co-authored-by: Mike Drob <mdrob@apache.org>

help/workflow.txt

@@ -29,7 +29,8 @@ ls -R build/maven-local/
 
 Put together Solr distribution:
 gradlew -p solr/packaging assemble
-ls solr/packaging/build/solr-*
+ls solr/packaging/build/distributions/solr-* # release archives
+ls solr/packaging/build/solr-*               # expanded directory
 
 
 Other validation and checks

solr/packaging/build.gradle

@@ -20,6 +20,7 @@
 
 plugins {
   id 'base'
+  id 'distribution'
 }
 
 description = 'Solr packaging'
@@ -64,58 +65,76 @@ dependencies {
   server project(path: ":solr:server", configuration: "packaging")
 }
 
-task toDir(type: Sync) {
-  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"
-  })
+distributions {
+  main {
+    distributionBaseName = 'solr'
+    contents {
+      // Manually correct posix permissions (matters when packaging on Windows).
+      filesMatching([
+          "**/*.sh",
+          "**/bin/post",
+          "**/bin/postlogs",
+          "**/bin/solr",
+          "**/bin/init.d/solr",
+          "**/bin/solr-exporter",
+      ]) {
+        setMode 0755
+      }
 
-  from(project(":lucene").projectDir, {
-    include "CHANGES.txt"
-    rename { file -> 'LUCENE_CHANGES.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"
+      })
 
-  from(configurations.contrib, {
-    into "contrib"
-  })
+      from(project(":lucene").projectDir, {
+        include "CHANGES.txt"
+        rename { file -> 'LUCENE_CHANGES.txt' }
+      })
 
-  from(configurations.distSolr, {
-    into "dist"
-  })
+      from(configurations.contrib, {
+        into "contrib"
+      })
 
-  from(configurations.distSolrj - configurations.distSolr, {
-    into "dist/solrj-lib"
-  })
+      from(configurations.distSolr, {
+        into "dist"
+      })
 
-  from(configurations.example, {
-    into "example"
-  })
+      from(configurations.distSolrj - configurations.distSolr, {
+        into "dist/solrj-lib"
+      })
 
-  from(configurations.server, {
-    into "server"
-  })
+      from(configurations.example, {
+        into "example"
+      })
 
-  // docs/   - TODO: this is assembled via XSLT... leaving out for now.
+      from(configurations.server, {
+        into "server"
+      })
 
-  into distDir
-
-  doLast {
-    logger.lifecycle "Solr distribution assembled under: ${distDir}"
+      // docs/   - TODO: this is assembled via XSLT... leaving out for now.
+    }
   }
 }
 
+distTar {
+  compression = Compression.GZIP
+}
+
+installDist {
+  into distDir
+}
+
 task dev(type: Copy) {
   description "Assemble Solr distribution into 'development' folder at ${devDir}"
   group "build"
 
-  from toDir.outputs
+  from installDist.outputs
   into devDir
 }
 
-assemble.dependsOn toDir
-
+assemble.dependsOn installDist