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  1. Qt
  2. QTBUG-115166

qt_add_qml_module() causes non-Ninja generators to think that projects are never up-to-date

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Details

    • 0338a2f75 (dev), f81945e1d (dev), 6fbd6e1f7 (6.6), 33b5e9f39 (tqtc/lts-6.5), b407e3717 (6.6), ee05413e7 (tqtc/lts-6.5), 7c6ef1544 (tqtc/lts-6.5), ad6753ba7 (dev), dc327e192 (6.6), 66aebd35a (dev), aef0c3cf3 (6.7), 96289e100 (6.6), d4ca70eaa (dev)

    Description

      While the patches for QTBUG-106683 have successfully stopped the actual rebuilding of *.cpp files and libraries/executables, there are still many things that make the non-Ninja generators think that the project is stale. This causes build times to blow up when a large project has may small QML modules.

      See the attached sample project, which is a very basic "Hello World" app plus a single QML_ELEMENT class.

       

      Visual Studio 17 2022 generator
      Load the generated *.sln file in Visual Studio, go to "Tools" > "Options" > "Projects and Solutions" > "Build And Run", and set "MSBuild project build output verbosity" to "Detailed" or "Diagnostic". When rebuilding without changes, the build output contains:

      3>------ Up-To-Date check: Project: appRebuildTest_qmltyperegistration.vcxproj, Configuration: Debug x64 ------
3>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_qmltyperegistration' is missing

4>------ Up-To-Date check: Project: appRebuildTest_qmlimportscan.vcxproj, Configuration: Debug x64 ------
4>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_qmlimportscan' is missing

5>------ Up-To-Date check: Project: appRebuildTest_autogen.vcxproj, Configuration: Debug x64 ------
5>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_autogen' is missing

7>------ Up-To-Date check: Project: appRebuildTest_qmllint_module.vcxproj, Configuration: Debug x64 ------
7>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_qmllint_module' is missing

8>------ Up-To-Date check: Project: appRebuildTest_qmllint_json.vcxproj, Configuration: Debug x64 ------
8>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_qmllint_json' is missing

9>------ Up-To-Date check: Project: appRebuildTest_qmllint.vcxproj, Configuration: Debug x64 ------
9>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_qmllint' is missing

10>------ Up-To-Date check: Project: appRebuildTest_automoc_json_extraction.vcxproj, Configuration: Debug x64 ------
10>Project is not up-to-date: build output 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\cmakefiles\apprebuildtest_automoc_json_extraction' is missing

14>------ Up-To-Date check: Project: appRebuildTest.vcxproj, Configuration: Debug x64 ------
14>Project is not up-to-date: build input 'd:\qtsupport\00481833\build-rebuildtest-desktop_qt_6_6_0_msvc2019_64bit\meta_types\apprebuildtest_json_file_list.txt' was modified after the last build finished.

       

      MinGW Makefiles generator (GNU Make 4.2.1, Built for x86_64-w64-mingw32)
      Use the --debug=basic flag. When rebuilding without changes, the build output contains:

       File 'all' does not exist.
   File 'cmake_check_build_system' does not exist.
  Must remake target 'cmake_check_build_system'.

Must remake target 'all'.

 File 'all' does not exist.
   File 'CMakeFiles/appRebuildTest.dir/all' does not exist.
     File 'CMakeFiles/appRebuildTest_tooling.dir/all' does not exist.
    Must remake target 'CMakeFiles/appRebuildTest_tooling.dir/all'.

 File 'CMakeFiles/appRebuildTest_tooling.dir/depend' does not exist.
Must remake target 'CMakeFiles/appRebuildTest_tooling.dir/depend'.

 File 'CMakeFiles/appRebuildTest_tooling.dir/build' does not exist.
   File 'appRebuildTest_tooling' does not exist.
  Must remake target 'appRebuildTest_tooling'.

Must remake target 'CMakeFiles/appRebuildTest_tooling.dir/build'.

[  5%] Built target appRebuildTest_tooling
     File 'CMakeFiles/appRebuildTest_automoc_json_extraction.dir/all' does not exist.
       File 'CMakeFiles/appRebuildTest_autogen.dir/all' does not exist.
         File 'CMakeFiles/appRebuildTest_qmlimportscan.dir/all' does not exist.
        Must remake target 'CMakeFiles/appRebuildTest_qmlimportscan.dir/all'.

 File 'CMakeFiles/appRebuildTest_qmlimportscan.dir/depend' does not exist.
Must remake target 'CMakeFiles/appRebuildTest_qmlimportscan.dir/depend'.

 File 'CMakeFiles/appRebuildTest_qmlimportscan.dir/build' does not exist.
   File 'appRebuildTest_qmlimportscan' does not exist.
     File 'CMakeFiles/appRebuildTest_qmlimportscan' does not exist.
    Must remake target 'CMakeFiles/appRebuildTest_qmlimportscan'.

  Must remake target 'appRebuildTest_qmlimportscan'.

Must remake target 'CMakeFiles/appRebuildTest_qmlimportscan.dir/build'.

[ 10%] Built target appRebuildTest_qmlimportscan

      Must remake target 'CMakeFiles/appRebuildTest_autogen.dir/all'.

 File 'CMakeFiles/appRebuildTest_autogen.dir/depend' does not exist.
Must remake target 'CMakeFiles/appRebuildTest_autogen.dir/depend'.

 File 'CMakeFiles/appRebuildTest_autogen.dir/build' does not exist.
   File 'appRebuildTest_autogen' does not exist.
     File 'CMakeFiles/appRebuildTest_autogen' does not exist.
    Must remake target 'CMakeFiles/appRebuildTest_autogen'.
[ 15%] Automatic MOC and UIC for target appRebuildTest

  Must remake target 'appRebuildTest_autogen'.

Must remake target 'CMakeFiles/appRebuildTest_autogen.dir/build'.

[ 21%] Built target appRebuildTest_autogen

    Must remake target 'CMakeFiles/appRebuildTest_automoc_json_extraction.dir/all'.

 File 'CMakeFiles/appRebuildTest_automoc_json_extraction.dir/depend' does not exist.
Must remake target 'CMakeFiles/appRebuildTest_automoc_json_extraction.dir/depend'.

 File 'CMakeFiles/appRebuildTest_automoc_json_extraction.dir/build' does not exist.
   File 'appRebuildTest_automoc_json_extraction' does not exist.
     File 'CMakeFiles/appRebuildTest_automoc_json_extraction' does not exist.
    Must remake target 'CMakeFiles/appRebuildTest_automoc_json_extraction'.
[ 26%] Running AUTOMOC file extraction for target appRebuildTest

  Must remake target 'appRebuildTest_automoc_json_extraction'.

Must remake target 'CMakeFiles/appRebuildTest_automoc_json_extraction.dir/build'.

[ 26%] Built target appRebuildTest_automoc_json_extraction

  Must remake target 'CMakeFiles/appRebuildTest.dir/all'.

 File 'CMakeFiles/appRebuildTest.dir/depend' does not exist.
   Prerequisite 'meta_types/appRebuildTest_json_file_list.txt' is newer than target 'meta_types/qt6apprebuildtest_debug_metatypes.json.gen'.
  Must remake target 'meta_types/qt6apprebuildtest_debug_metatypes.json.gen'.
[ 31%] Running moc --collect-json for target appRebuildTest

Must remake target 'CMakeFiles/appRebuildTest.dir/depend'.

 File 'CMakeFiles/appRebuildTest.dir/build' does not exist.
Must remake target 'CMakeFiles/appRebuildTest.dir/build'.

[100%] Built target appRebuildTest

Must remake target 'all'.

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-106683 qt_add_qml_module: _automoc_json_extraction target and resources are rebuilding every time with Visual Studio Generator

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-121046 Some dependencies are always considered not up to date.

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-119838 [REG] qt_add_qml_module broken for the VS generator when called in different subdirectories

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              jbornema Joerg Bornemann
              skoh-qt Sze Howe Koh
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              Dates

                Created:
                Updated:
                Resolved:

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