Allow rules without output artifacts

It is occasionally useful to have a rule whose purpose lies solely in
its "side effects", that is, it does not produce any actual files.
This patch removes the necessity to declare a dummy artifact in that
case.

[ChangeLog] Added support for rules without output artifacts

Change-Id: I38e76a5ddc78ffa768e8ae1f270ae2f7461c5ee7
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

2 files changed, 2 insertions, 9 deletions

diff --git a/tests/auto/api/testdata/infinite-loop-process/infinite-loop.qbs b/tests/auto/api/testdata/infinite-loop-process/infinite-loop.qbs
index 6155baf28..fb09b9a97 100644
--- a/tests/auto/api/testdata/infinite-loop-process/infinite-loop.qbs
+++ b/tests/auto/api/testdata/infinite-loop-process/infinite-loop.qbs
@@ -14,10 +14,7 @@ Project {
         Depends { name: "infinite-loop" }
         Rule {
             inputsFromDependencies: "application"
-            Artifact {
-                filePath: "dummy"
-                fileTags: "mytype"
-            }
+            outputFileTags: "mytype"
             prepare: {
                 var cmd = new Command(inputs["application"][0].filePath);
                 cmd.description = "Calling application that runs forever";
diff --git a/tests/auto/api/testdata/process-result/process-result.qbs b/tests/auto/api/testdata/process-result/process-result.qbs
index 2aaf0626e..24fc595bc 100644
--- a/tests/auto/api/testdata/process-result/process-result.qbs
+++ b/tests/auto/api/testdata/process-result/process-result.qbs
@@ -15,11 +15,7 @@ Project {
         property int argument
         Rule {
             inputsFromDependencies: ["application"]
-            Artifact {
-                filePath: "dummy"
-                fileTags: product.type
-                alwaysUpdated: false
-            }
+            outputFileTags: "mytype"
             prepare: {
                 var cmd = new Command(inputs["application"][0].filePath, [product.argument]);
                 if (product.redirectStdout)