Auto-build/update codegen

Test: 1. Manually enter version/presence of build artifact,
and ensure `codegen FILENAME` still works
2. run codegen again without altering version, ensure no build triggered
Change-Id: I6f1dba0a476077c708bbea8ef558445107e5ad97

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/processors/staledataclass/src/android/processor/staledataclass/StaleDataclassProcessor.kt b/tools/processors/staledataclass/src/android/processor/staledataclass/StaleDataclassProcessor.kt
index 9e51180509a8..e5ec17a1d18d 100644
--- a/tools/processors/staledataclass/src/android/processor/staledataclass/StaleDataclassProcessor.kt
+++ b/tools/processors/staledataclass/src/android/processor/staledataclass/StaleDataclassProcessor.kt
@@ -125,6 +125,7 @@ class StaleDataclassProcessor: AbstractProcessor() {
 
         val lastGenerated = annotationParams["time"] as Long
         val codegenVersion = annotationParams["codegenVersion"] as String
+        val codegenMajorVersion = codegenVersion.substringBefore(".")
         val sourceRelative = File(annotationParams["sourceFile"] as String)
 
         val lastGenInputSignatures = (annotationParams["inputSignatures"] as String).lines().toSet()
@@ -151,7 +152,7 @@ class StaleDataclassProcessor: AbstractProcessor() {
             stale += Stale(clazz, source, lastGenerated)
         }
 
-        if (codegenVersion != CODEGEN_VERSION) {
+        if (codegenMajorVersion != CODEGEN_VERSION.substringBefore(".")) {
             stale += Stale(clazz, source, lastGenerated)
         }
     }