Add build version option to prefix git hash with custom version property (#7222)

* Add build version option to prefix git hash with custom version property
* Refactor to make appending the git hash a boolean property. Include a commented-out example of how to use the properties in the gradle file

Signed-off-by: Matthew Whitehead <matthew1001@gmail.com>

build.gradle

@@ -934,6 +934,10 @@ def calculateVersion() {
   def calVerPattern = ~/\d+\.\d+(\.\d+)?(-.*)?/
 
   if (project.hasProperty('version') && (project.version =~ calVerPattern)) {
+    if (project.hasProperty('versionappendcommit') && project.versionappendcommit == "true") {
+      def gitDetails = getGitCommitDetails(7) // Adjust length as needed
+      return "${project.version}-${gitDetails.hash}"
+    }
     return "${project.version}"
   } else {
     // If no version is supplied or it doesn't match the semantic versioning, calculate from git

gradle.properties

@@ -1,4 +1,9 @@
 org.gradle.welcome=never
+
+# Optional - set custom build version
+# version=24.5.6-acme
+# versionappendcommit=true
+
 # Set exports/opens flags required by Google Java Format and ErrorProne plugins. (JEP-396)
 org.gradle.jvmargs=-Xmx4g \
 --add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \