Android: Add timestamp checks to stop redundant build/deployHEADmaster

Check file modification times to avoid unnecessary steps in builds
and deployments when nothing has changed. Timestamps are persisted
across sessions.

Fixes: QTCREATORBUG-33638
Change-Id: Id225bd2548096e4a3892d5f87066b4cff661a176
Reviewed-by: hjk <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/plugins/android/androidbuildapkstep.h b/src/plugins/android/androidbuildapkstep.h
index 3d3a6e025b5..34b08607cb7 100644
--- a/src/plugins/android/androidbuildapkstep.h
+++ b/src/plugins/android/androidbuildapkstep.h
@@ -65,6 +65,8 @@ private:
 
     void reportWarningOrError(const QString &message, ProjectExplorer::Task::TaskType type);
     void updateBuildToolsVersionInJsonFile();
+    bool needsApkRegeneration();
+    void updateBuildTimestamp();
 
     bool m_signPackage = false;
     bool m_openPackageLocationForRun = false;
@@ -81,6 +83,7 @@ private:
     ProjectExplorer::ProcessParameters m_concealedParams;
     bool m_skipBuilding = false;
     Utils::FilePath m_inputFile;
+    QDateTime m_lastBuildTime;
 };
 
 void setupAndroidBuildApkStep();