[lucene-solr] 44/47: LUCENE-9301: include build time and user name only in non-snapshot builds so that jars are not recompiled on each build in development.

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sokolov pushed a commit to branch jira/lucene-8962
in repository https://gitbox.apache.org/repos/asf/lucene-solr.git

commit b20ceb26bb47b2b0430e0ec82914d4fd0b261b31
Author: Dawid Weiss <dw...@apache.org>
AuthorDate: Mon Jun 1 10:00:46 2020 +0200

    LUCENE-9301: include build time and user name only in non-snapshot builds so that jars are not recompiled on each build in development.
---
 build.gradle               | 2 ++
 gradle/jar-manifest.gradle | 9 ++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/build.gradle b/build.gradle
index 2e80ed8..3a08ec4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -54,6 +54,8 @@ ext {
     }
     return m[0][1] as int
   }
+  // snapshot build marker used in scripts.
+  snapshotBuild = version.contains("SNAPSHOT")
 
   // Build timestamp.
   def tstamp = ZonedDateTime.now()
diff --git a/gradle/jar-manifest.gradle b/gradle/jar-manifest.gradle
index 69b4116..9b2cd68 100644
--- a/gradle/jar-manifest.gradle
+++ b/gradle/jar-manifest.gradle
@@ -48,7 +48,14 @@ allprojects {
                     // awkward on import and resolves provider properties even though task dependencies
                     // have not been run yet?
                     def gitRev = rootProject.hasProperty("gitRev") ? rootProject.gitRev : ""
-                    "${project.version} ${gitRev} - ${System.properties['user.name']} - ${buildDate} ${buildTime}"
+
+                    // For snapshot builds just include the project version and gitRev so that
+                    // JARs don't need to be recompiled just because the manifest has changed.
+                    if (snapshotBuild) {
+                      return "${project.version} ${gitRev} [snapshot build, details omitted]"
+                    } else {
+                      return "${project.version} ${gitRev} - ${System.properties['user.name']} - ${buildDate} ${buildTime}"
+                    }
                 }
 
                 manifest {