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  1. Qt
  2. QTBUG-96232

Figure out how to build examples as ExternalProjects in a prefix build setup so it can be used in the CI

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Details

    • Task
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • 6.2.0 Beta3
    • Build System: CMake
    • None
    • 4e70ab5ee (dev), 432083949 (tqtc/lts-6.2), abe3e465b (tqtc/lts-6.2), 72de1af9e (tqtc/lts-6.2), 15cfb9392 (dev), 4a71a001a (tqtc/lts-6.5), 68b2e1db0 (dev), 43d0c5ed6 (dev), 20bd9fad1 (dev), 31c5d50e8 (dev), c668dd404 (dev), cc537d927 (dev), 40fa36db2 (dev)

    Description

      Currently if Qt is configured as a prefix build, examples are built in-tree as part of the main Qt build, rather than as ExternalProjects.

      We should figure out how to build examples as ExternalProjects in prefix builds so that we can use that in the CI (which uses prefix builds) so that we have more robust build testing of our examples without the pollution of the main Qt build (e.g already found Qt packages).

      Some details at

      https://codereview.qt-project.org/c/qt/qtbase/+/334565/16#message-047a2ba634d2540c2357d7ad913c7f752c793554

      https://codereview.qt-project.org/c/qt/qtbase/+/334565/16#message-9b7be35fc48218cbc73c29d03ff99312b7532477

      From a quick 5 second brainstorming, we might not need to "make install" Qt before the example projects are configured as a big standalone project each spawning an ExternalProject, we might be able to use CMake's export(EXPORT) to create Config and Targets file referencing targets in the build tree, and set the ExternalProject CMAKE_PREFIX_PATH to the location containing those files.

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. QTBUG-101340 Use qt_generate_deploy_qml_app_script MACOS_BUNDLE_POST_BUILD in QML examples

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • In Progress
          depends on

          Task - A task that needs to be done. QTBUG-106431 qmlimportscanner doesn't find non-installed qtdeclarative qml modules in a prefix build

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-98787 Prefix builds of qtdeclarative with examples are faced with an empty default import path when building the examples

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

          Task - A task that needs to be done. QTBUG-102057 Use CMake deployment API in Qt examples once the API is out of TP

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • In Progress
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-94608 Nonsensical full path to examples

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed

          User Story - Created by Jira Software - do not edit or delete. Issue type for a user story. QTBUG-98545 Provide CMake API for deployment support

          • 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-106021 Wrong install path for shared example project

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-96358 ShaderTools package not found when building qtdeclarative examples in-tree in a prefix build (not as ExternalProjects)

          • 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-102879 Examples not linking to Qt::Core are installed in the wrong folder

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed

          Task - A task that needs to be done. QTBUG-102056 Remove usage of INSTALL_EXAMPLESDIR and INSTALL_EXAMPLEDIR in examples

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

          Task - A task that needs to be done. QTBUG-124009 Support a way to easily set import paths for QML engine & tooling

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

          Suggestion - Public suggestions QTBUG-90820 Build examples as external projects within the main build

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • In Progress
          For Gerrit Dashboard: QTBUG-96232
          # Subject Branch Project Status CR V
          394002,28 CMake: Re-enable building external examples in prefix builds dev qt/qtbase Status: NEW -2 -1
          431085,18 WIP: CMake: Test examples as external projects dev qt/qt5 Status: NEW -2 0
          400957,2 CMake: Fix cross-building examples in prefix builds as ExternalProjects 6.3 qt/qtbase Status: MERGED +2 0
          400958,2 CMake: Fix cross-building examples in prefix builds as ExternalProjects 6.2 qt/qtbase Status: MERGED +2 0
          400962,2 CMake: Don't rely on CMAKE_FIND_ROOT_PATH_MODE_PACKAGE for examples 6.3 qt/qtbase Status: MERGED +2 0
          400963,2 CMake: Don't rely on CMAKE_FIND_ROOT_PATH_MODE_PACKAGE for examples 6.2 qt/qtbase Status: MERGED +2 0
          401565,7 CMake: Rename QT_INTERNAL_CUSTOM_INSTALL_DIR dev qt/qtbase Status: MERGED +2 0
          402732,5 CMake: Allow specifying custom install dir for non-EP examples dev qt/qtbase Status: MERGED +2 0
          404238,3 CMake: Rename QT_INTERNAL_CUSTOM_INSTALL_DIR 6.3 qt/qtbase Status: MERGED +2 0
          404239,3 CMake: Rename QT_INTERNAL_CUSTOM_INSTALL_DIR 6.2 qt/qtbase Status: MERGED +2 0
          404302,3 CMake: Allow specifying custom install dir for non-EP examples 6.3 qt/qtbase Status: MERGED +2 0
          404303,3 CMake: Allow specifying custom install dir for non-EP examples 6.2 qt/qtbase Status: MERGED +2 0
          424838,3 CMake: Fix Ninja Multi-Config dependency issues for top-level targets dev qt/qtbase Status: MERGED +2 0
          424886,5 CMake: Fix examples to build as external projects when cross-compiling dev qt/qtbase Status: MERGED +2 0
          425300,2 CMake: Fix Ninja Multi-Config dependency issues for top-level targets 6.4 qt/qtbase Status: MERGED +2 0
          425301,2 CMake: Fix Ninja Multi-Config dependency issues for top-level targets 6.3 qt/qtbase Status: MERGED +2 0
          425302,2 CMake: Fix examples to build as external projects when cross-compiling 6.4 qt/qtbase Status: MERGED +2 0
          425303,2 CMake: Fix examples to build as external projects when cross-compiling 6.3 qt/qtbase Status: MERGED +2 0
          425309,2 CMake: Fix Ninja Multi-Config dependency issues for top-level targets tqtc/lts-6.2 qt/tqtc-qtbase Status: MERGED +2 0
          425310,2 CMake: Fix examples to build as external projects when cross-compiling tqtc/lts-6.2 qt/tqtc-qtbase Status: MERGED +2 0
          431445,3 CMake: Harden construction of QML import paths for qmlimportscanner dev qt/qtdeclarative Status: MERGED +2 0
          431517,3 CMake: Correctly process root paths for qmlimportscanner dev qt/qtdeclarative Status: MERGED +2 0
          431778,3 CMake: Harden construction of QML import paths for qmlimportscanner 6.4 qt/qtdeclarative Status: MERGED +2 0
          431779,2 CMake: Harden construction of QML import paths for qmlimportscanner 6.3 qt/qtdeclarative Status: MERGED +2 0
          431780,2 CMake: Harden construction of QML import paths for qmlimportscanner 6.4.0 qt/qtdeclarative Status: MERGED +2 0
          431781,3 CMake: Correctly process root paths for qmlimportscanner 6.4 qt/qtdeclarative Status: MERGED +2 0
          431782,2 CMake: Correctly process root paths for qmlimportscanner 6.4.0 qt/qtdeclarative Status: MERGED +2 0
          431783,2 CMake: Correctly process root paths for qmlimportscanner 6.3 qt/qtdeclarative Status: MERGED +2 0
          431789,4 CMake: Harden construction of QML import paths for qmlimportscanner tqtc/lts-6.2 qt/tqtc-qtdeclarative Status: MERGED +2 0
          431790,4 CMake: Correctly process root paths for qmlimportscanner tqtc/lts-6.2 qt/tqtc-qtdeclarative Status: MERGED +2 0
          431800,7 CMake: Rework tool wrapper shell script creation dev qt/qtbase Status: MERGED +2 0
          432115,6 CMake: Add function to get tool wrapper shell script path dev qt/qtbase Status: MERGED +2 0
          432139,5 CMake: Use _qt_internal_get_tool_wrapper_script_path dev qt/qtdeclarative Status: MERGED +2 0
          432474,3 CMake: Move __qt_internal_prefix_paths_to_roots dev qt/qtbase Status: MERGED +2 0
          433046,3 CMake: Move __qt_internal_prefix_paths_to_roots 6.4 qt/qtbase Status: MERGED +2 0
          433047,4 CMake: Rework tool wrapper shell script creation 6.4 qt/qtbase Status: MERGED +2 0
          433048,4 CMake: Add function to get tool wrapper shell script path 6.4 qt/qtbase Status: MERGED +2 0
          440676,4 CMake: Use _qt_internal_get_tool_wrapper_script_path 6.4 qt/qtdeclarative Status: MERGED +2 0
          455210,2 CMake: Work around AUTOUIC Ninja Multi-Config issue with EP examples dev qt/qtbase Status: MERGED +2 0
          455211,2 CMake: Exclude designer from dependencies when building EP examples dev qt/qttools Status: MERGED +2 0
          457403,3 CMake: Move __qt_internal_prefix_paths_to_roots tqtc/lts-6.2 qt/tqtc-qtbase Status: MERGED +2 0
          457404,3 CMake: Rework tool wrapper shell script creation tqtc/lts-6.2 qt/tqtc-qtbase Status: MERGED +2 0
          457405,3 CMake: Add function to get tool wrapper shell script path tqtc/lts-6.2 qt/tqtc-qtbase Status: MERGED +2 0
          492658,13 CMake: Make examples build as external projects dev qt/qtgrpc Status: MERGED +2 0
          492683,8 CMake: Allow passing extra variables to external project examples dev qt/qtbase Status: MERGED +2 0
          493102,7 CMake: Pass CMAKE_MODULE_PATH to external project examples dev qt/qtbase Status: MERGED +2 0
          493471,1 CMake: Configure examples as ExternalProjects in unique config folders dev qt/qtbase Status: ABANDONED 0 0
          493473,2 WIP: CMake: Only configure main config of EP examples dev qt/qtbase Status: DEFERRED -2 0
          493474,3 WIP: CMake: Place syncqt directly in libexec in multi-config builds dev qt/qtbase Status: DEFERRED -2 0
          493475,3 WIP: CMake: Specify explicit build command in multi config example EP dev qt/qtbase Status: DEFERRED -2 0
          494049,8 CMake: Disable ExternalProject examples for -debug-and-release builds dev qt/qtbase Status: MERGED +2 0
          522189,2 CMake: Work around AUTOUIC Ninja Multi-Config issue with EP examples tqtc/lts-6.5 qt/tqtc-qtbase Status: MERGED +2 0
          545545,4 CMake: Fix syncqt IMPORTED_LOCATION path for multi-config builds dev qt/qtbase Status: MERGED +2 0
          545820,3 CMake: Adjust CMAKE_MODULE_PATH for ExternalProject examples dev qt/qtbase Status: MERGED +2 0
          545849,3 CMake: Allow specifying additional glob paths for QmlPlugins.cmake dev qt/qtbase Status: MERGED +2 0
          545850,3 CMake: Adjust QT_ADDITIONAL_QML_PLUGIN_GLOB_PREFIXES for EP examples dev qt/qtbase Status: MERGED +2 0
          545858,16 CMake: Allow building all examples as standalone just like tests dev qt/qtbase Status: MERGED +2 0
          546169,15 coin: Add instructions to build standalone examples dev qt/qtbase Status: MERGED +2 0
          547206,10 coin: Build standalone examples in a separate build directory dev qt/qt5 Status: MERGED +2 0
          547247,16 CMake: Add option to allow skipping qml deployment when building in CI dev qt/qtdeclarative Status: MERGED +2 0
          547481,6 CMake: Add option to allow skipping app deployment when building in CI dev qt/qtbase Status: MERGED +2 0
          547595,5 CMake: Fix macOS deployment POST_BUILD step for debug configs dev qt/qtdeclarative Status: MERGED +2 0
          547597,8 CMake: Allow configuring a minimal subset of examples to deploy dev qt/qtbase Status: MERGED +2 0
          547775,3 CMake: Allow finding qmlimportscanner also in Qt build dir dev qt/qtdeclarative Status: MERGED +2 0
          547776,17 CMake: Enable macOS POST_BUILD deployment for in-tree examples dev qt/qtdeclarative Status: MERGED +2 0
          548407,2 CMake: Allow finding qmlimportscanner also in Qt build dir 6.7 qt/qtdeclarative Status: MERGED +2 0
          548408,2 CMake: Fix macOS deployment POST_BUILD step for debug configs 6.7 qt/qtdeclarative Status: MERGED +2 0
          549224,4 CMake: Fix finding standalone parts config file for yocto dev qt/qtbase Status: MERGED +2 0
          549352,2 CMake: Add option to allow skipping app deployment when building in CI 6.7 qt/qtbase Status: MERGED +2 0
          549396,4 CMake: Allow configuring a minimal subset of examples to deploy 6.7 qt/qtbase Status: MERGED +2 0
          549502,2 CMake: Allow passing extra variables to external project examples 6.7 qt/qtbase Status: MERGED +2 0
          549503,2 CMake: Pass CMAKE_MODULE_PATH to external project examples 6.7 qt/qtbase Status: MERGED +2 0
          549504,2 CMake: Fix syncqt IMPORTED_LOCATION path for multi-config builds 6.7 qt/qtbase Status: MERGED +2 0
          549505,2 CMake: Adjust CMAKE_MODULE_PATH for ExternalProject examples 6.7 qt/qtbase Status: MERGED +2 0
          549506,2 CMake: Disable ExternalProject examples for -debug-and-release builds 6.7 qt/qtbase Status: MERGED +2 0
          549547,2 CMake: Allow specifying additional glob paths for QmlPlugins.cmake 6.7 qt/qtbase Status: MERGED +2 0
          549548,2 CMake: Adjust QT_ADDITIONAL_QML_PLUGIN_GLOB_PREFIXES for EP examples 6.7 qt/qtbase Status: MERGED +2 0
          549549,2 CMake: Allow building all examples as standalone just like tests 6.7 qt/qtbase Status: MERGED +2 0
          549550,3 coin: Add instructions to build standalone examples 6.7 qt/qtbase Status: MERGED +2 0
          549551,2 CMake: Fix finding standalone parts config file for yocto 6.7 qt/qtbase Status: MERGED +2 0
          551765,2 CMake: Add option to allow skipping qml deployment when building in CI 6.7 qt/qtdeclarative Status: MERGED +2 0
          551766,2 CMake: Enable macOS POST_BUILD deployment for in-tree examples 6.7 qt/qtdeclarative Status: MERGED +2 0
          560779,3 WIP: CMake: Allow running deployment API in top-level prefix builds dev qt/qtbase Status: DEFERRED -2 0
          576606,2 CMake: Fix lookup of qml plugins for external project examples dev qt/qtbase Status: MERGED +2 0
          576669,2 CMake: Fix lookup of qml plugins for external project examples 6.8 qt/qtbase Status: MERGED +2 0
          576759,2 CMake: Fix lookup of qml plugins for external project examples 6.7 qt/qtbase Status: MERGED +2 0
          578541,2 CMake: Don't pass __QT_DEPLOY_IMPL_DIR during macOS POST_BUILD dev qt/qtdeclarative Status: MERGED +2 0
          578542,2 CMake: Unset DESTDIR when running macOS POST_BUILD deployment dev qt/qtdeclarative Status: MERGED +2 0
          578543,2 coin: Unset DESTDIR after installation dev qt/qtbase Status: MERGED +2 0
          578565,2 coin: Unset DESTDIR after installation 6.8 qt/qtbase Status: MERGED +2 0
          578566,2 CMake: Don't pass __QT_DEPLOY_IMPL_DIR during macOS POST_BUILD 6.8 qt/qtdeclarative Status: MERGED +2 0
          578567,2 CMake: Unset DESTDIR when running macOS POST_BUILD deployment 6.8 qt/qtdeclarative Status: MERGED +2 0
          581014,4 CMake: Unset DESTDIR when installing non-standalone examples dev qt/qtbase Status: MERGED +2 +1
          581679,2 CMake: Unset DESTDIR when installing non-standalone examples 6.8 qt/qtbase Status: MERGED +2 0
          583485,3 CMake: Make grpc chat example build as external project with qemu CI dev qt/qtgrpc Status: MERGED +2 0
          583981,2 CMake: Make grpc chat example build as external project with qemu CI 6.8 qt/qtgrpc Status: MERGED +2 0
          597790,2 coin: Build MSVC as standalone examples in a separate build directory dev qt/qt5 Status: MERGED +2 +1
          598522,2 coin: Build MSVC as standalone examples in a separate build directory 6.8 qt/qt5 Status: MERGED +2 0
          598631,2 CMake: Fix linking of qtsvg static plugins in standalone tests build dev qt/qtbase Status: MERGED +2 0
          598681,2 CMake: Fix linking of qtsvg static plugins in standalone tests build 6.8 qt/qtbase Status: MERGED +2 0

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              alexandru.croitor Alexandru Croitor
              alexandru.croitor Alexandru Croitor
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                Updated:

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