add operationExists method on script side

Change-Id: Ic49a629931b09f104a644dfa7acb5f57b6185f01
Reviewed-by: Niels Weber <niels.weber@digia.com>

2 files changed, 13 insertions, 0 deletions

diff --git a/src/libs/installer/packagemanagercore.cpp b/src/libs/installer/packagemanagercore.cpp
index 09e1a5094..a4883b651 100644
--- a/src/libs/installer/packagemanagercore.cpp
+++ b/src/libs/installer/packagemanagercore.cpp
@@ -1629,6 +1629,18 @@ QString PackageManagerCore::environmentVariable(const QString &name) const
 #endif
 }
 
+bool PackageManagerCore::operationExists(const QString &name)
+{
+    static QSet<QString> existingOperations;
+    if (existingOperations.contains(name))
+        return true;
+    QScopedPointer<Operation> op(KDUpdater::UpdateOperationFactory::instance().create(name));
+    if (!op.data())
+        return false;
+    existingOperations.insert(name);
+    return true;
+}
+
 /*!
     \qmlmethod boolean QInstaller::performOperation(string name, stringlist arguments)
 
diff --git a/src/libs/installer/packagemanagercore.h b/src/libs/installer/packagemanagercore.h
index 392e5a018..5f262e804 100644
--- a/src/libs/installer/packagemanagercore.h
+++ b/src/libs/installer/packagemanagercore.h
@@ -138,6 +138,7 @@ public:
         const QString &workingDirectory = QString()) const;
     Q_INVOKABLE QString environmentVariable(const QString &name) const;
 
+    Q_INVOKABLE bool operationExists(const QString &name);
     Q_INVOKABLE bool performOperation(const QString &name, const QStringList &arguments);
 
     Q_INVOKABLE static bool versionMatches(const QString &version, const QString &requirement);