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-# AGL CMake template
-
-Files used to build an application, or binding, project with the
-AGL Application Framework.
-
-To build your AGL project using these templates, you have to install
-them within your project and adjust compilation option in `config.cmake`.
-For technical reasons, you also have to specify **cmake** target in
-sub CMakeLists.txt installed. Make a globbing search to find source files
-isn't recommended now to handle project build especially in a multiuser
-project because CMake will not be aware of new or removed source files.
-
-You'll find usage samples here:
-
-- [helloworld-service](https://github.com/iotbzh/helloworld-service)
-- [low-level-can-service](https://gerrit.automotivelinux.org/gerrit/apps/low-level-can-service)
-- [high-level-viwi-service](https://github.com/iotbzh/high-level-viwi-service)
-- [audio-binding](https://github.com/iotbzh/audio-binding)
-- [unicens2-binding](https://github.com/iotbzh/unicens2-binding)
-
-## Quickstart
-
-### Initialization
-
-To use these templates files on your project just install the reference files using
-**git submodule** then use `config.cmake` file to configure your project specificities :
-
-```bash
-git submodule add https://gerrit.automotivelinux.org/gerrit/p/apps/app-templates.git conf.d/app-templates
-mkdir conf.d/cmake
-cp conf.d/app-templates/cmake/config.cmake.sample conf.d/cmake/config.cmake
-```
-
-Edit the copied config.cmake file to fit your needs.
-
-Now, create your top CMakeLists.txt file which include `config.cmake` file.
-
-An example is available in **app-templates** submodule that you can copy and
-use:
-
-```bash
-cp conf.d/app-templates/cmake/CMakeLists.txt.sample CMakeLists.txt
-```
-
-### Create your CMake targets
-
-For each target part of your project, you need to use ***PROJECT_TARGET_ADD***
-to include this target to your project.
-
-Using it, make available the cmake variable ***TARGET_NAME*** until the next
-***PROJECT_TARGET_ADD*** is invoked with a new target name.
-
-So, typical usage defining a target is:
-
-```cmake
-PROJECT_TARGET_ADD(SuperExampleName) --> Adding target to your project
-
-add_executable/add_library(${TARGET_NAME}.... --> defining your target sources
-
-SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES.... --> fit target properties
-for macros usage
-```
-
-### Targets PROPERTIES
-
-You should set properties on your targets that will be used to package your
-apps in a widget file that could be installed on an AGL system.
-
-Specify what is the type of your targets that you want to be included in the
-widget package with the property **LABELS**:
-
-Choose between:
-
-- **BINDING**: Shared library that be loaded by the AGL Application Framework
-- **BINDINGV2**: Shared library that be loaded by the AGL Application Framework.
- This has to be accompagnied with a JSON file named like the *${OUTPUT_NAME}-apidef* of
- the target that describe the API with OpenAPI syntax (e.g: *mybinding-apidef*).
- Or you can choose the name by setting the *CACHE* cmake variable *OPENAPI_DEF*
- (***CAUTION***: setting a CACHE variable is needed, or set a normal variable
- with the *PARENT_SCOPE* option to make it visible for the parent scope
- where the target is defined) JSON file will be used to generate header file
- using `afb-genskel` tool.
-- **HTDOCS**: Root directory of a web app. This target has to build its
- directory and puts its files in the ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}
-- **DATA**: Resources used by your application. This target has to build its
- directory and puts its files in the ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}
-- **EXECUTABLE**: Entry point of your application executed by the AGL
- Application Framework
-
-> **TIP** you should use the prefix _afb-_ with your **BINDING* targets which
-> stand for **Application Framework Binding**.
-
-```cmake
-SET_TARGET_PROPERTIES(${TARGET_NAME}
- PREFIX "afb-"
- LABELS "BINDING"
- OUTPUT_NAME "file_output_name"
-)
-```
-
-> **NOTE**: You doesn't need to specify an **INSTALL** command for these
-> targets. This is already handle by template and will be installed in the
-> following path : **${CMAKE_INSTALL_PREFIX}/${PROJECT_NAME}**
-
-## More details: Typical project architecture
-
-A typical project architecture would be :
-
-```tree
-<project-root-path>
-│
-├── conf.d/
-│ ├── autobuild/
-│ │ ├── agl
-│ │ │ └── autobuild
-│ │ ├── linux
-│ │ │ └── autobuild
-│ │ └── windows
-│ │ └── autobuild
-│ ├── app-templates/
-│ │ ├── README.md
-│ │ ├── autobuild/
-│ │ │ ├── agl
-│ │ │ │ └── autobuild.in
-│ │ │ ├── linux
-│ │ │ │ └── autobuild.in
-│ │ │ └── windows
-│ │ │ └── autobuild.in
-│ │ ├── cmake/
-│ │ │ ├── config.cmake.sample
-│ │ │ ├── export.map
-│ │ │ └── macros.cmake
-│ │ ├── deb/
-│ │ │ └── config.deb.in
-│ │ ├── rpm/
-│ │ │ └── config.spec.in
-│ │ └── wgt/
-│ │ ├── config.xml.in
-│ │ ├── config.xml.in.sample
-│ │ ├── icon-default.png
-│ │ ├── icon-html5.png
-│ │ ├── icon-native.png
-│ │ ├── icon-qml.png
-│ │ └── icon-service.png
-│ ├── packaging/
-│ │ ├── config.spec
-│ │ └── config.deb
-│ ├── cmake
-│ │ └── config.cmake
-│ └── wgt
-│ └── config.xml.in
-├── <libs>
-├── <target>
-│ └── <files>
-├── <target>
-│ └── <file>
-└── <target>
- └── <files>
-```
-
-| # | Parent | Description |
-| - | -------| ----------- |
-| \<root-path\> | - | Path to your project. Hold master CMakeLists.txt and general files of your projects. |
-| conf.d | \<root-path\> | Holds needed files to build, install, debug, package an AGL app project |
-| app-templates | conf.d | Git submodule to app-templates AGL repository which provides CMake helpers macros library, and build scripts. config.cmake is a copy of config.cmake.sample configured for the projects. SHOULD NOT BE MODIFIED MANUALLY !|
-| autobuild | conf.d | Scripts generated from app-templates to build packages the same way for differents platforms.|
-| cmake | conf.d | Contains at least config.cmake file modified from the sample provided in app-templates submodule. |
-| wgt | conf.d | Contains at least config.xml.in template file modified from the sample provided in app-templates submodule for the needs of project (See config.xml.in.sample file for more details). |
-| packaging | conf.d | Contains output files used to build packages. |
-| \<libs\> | \<root-path\> | External dependencies libraries. This isn't to be used to include header file but build and link statically specifics libraries. | Library sources files. Can be a decompressed library archive file or project fork. |
-| \<target\> | \<root-path\> | A target to build, typically library, executable, etc. |
-
-### Update app-templates submodule
-
-You may have some news bug fixes or features available from app-templates
-repository that you want. To update your submodule proceed like the following:
-
-```bash
-git submodule update --remote
-git commit -s conf.d/app-templates
-```
-
-This will update the submodule to the HEAD of master branch repository.
-
-You could just want to update at a specified repository tag or branch or commit
-, here are the method to do so:
-
-```bash
-cd conf.d/app-templates
-# Choose one of the following depending what you want
-git checkout <tag_name>
-git checkout --detach <branch_name>
-git checkout --detach <commit_id>
-# Then commit
-cd ../..
-git commit -s conf.d/app-templates
-```
-
-### Build a widget
-
-#### config.xml.in file
-
-To build a widget you need a _config.xml_ file describing what is your apps and
-how Application Framework would launch it. This repo provide a simple default
-file _config.xml.in_ that should work for simple application without
-interactions with others bindings.
-
-It is recommanded that you use the sample one which is more complete. You can
-find it at the same location under the name _config.xml.in.sample_ (stunning
-isn't it). Just copy the sample file to your _conf.d/wgt_ directory and name it
-_config.xml.in_, then edit it to fit your needs.
-
-> ***CAUTION*** : The default file is only meant to be use for a
-> simple widget app, more complicated ones which needed to export
-> their api, or ship several app in one widget need to use the provided
-> _config.xml.in.sample_ which had all new Application Framework
-> features explained and examples.
-
-#### Using cmake template macros
-
-To leverage all cmake templates features, you have to specify ***properties***
-on your targets. Some macros will not works without specifying which is the
-target type.
-
-As the type is not always specified for some custom targets, like an ***HTML5***
-application, macros make the difference using ***LABELS*** property.
-
-Choose between:
-
-- **BINDING**: Shared library that be loaded by the AGL Application Framework
-- **BINDINGV2**: Shared library that be loaded by the AGL Application Framework.
- This has to be accompagnied with a JSON file named like the *${OUTPUT_NAME}-apidef* of
- the target that describe the API with OpenAPI syntax (e.g: *mybinding-apidef*).
- Or you can choose the name by setting the *CACHE* cmake variable *OPENAPI_DEF*
- (***CAUTION***: setting a CACHE variable is needed, or set a normal variable
- with the *PARENT_SCOPE* option to make it visible for the parent scope
- where the target is defined) JSON file will be used to generate header file
- using `afb-genskel` tool.
-- **HTDOCS**: Root directory of a web app. This target has to build its
- directory and puts its files in the ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}
-- **DATA**: Resources used by your application. This target has to build its
- directory and puts its files in the ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}
-- **EXECUTABLE**: Entry point of your application executed by the AGL
- Application Framework
-
-> **TIP** you should use the prefix _afb-_ with your **BINDING* targets which
-> stand for **Application Framework Binding**.
-
-Example:
-
-```cmake
-SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
- LABELS "HTDOCS"
- OUTPUT_NAME dist.prod
- )
-```
-
-> **NOTE**: You doesn't need to specify an **INSTALL** command for these
-> targets. This is already handle by template and will be installed in the
-> following path : **${CMAKE_INSTALL_PREFIX}/${PROJECT_NAME}**
-
-## Macro reference
-
-### PROJECT_TARGET_ADD
-
-Typical usage would be to add the target to your project using macro
-`PROJECT_TARGET_ADD` with the name of your target as parameter.
-
-Example:
-
-```cmake
-PROJECT_TARGET_ADD(low-can-demo)
-```
-
-> ***NOTE***: This will make available the variable `${TARGET_NAME}`
-> set with the specificied name. This variable will change at the next call
-> to this macros.
-
-### project_subdirs_add
-
-This macro will search in all subfolder any `CMakeLists.txt` file. If found then
-it will be added to your project. This could be use in an hybrid application by
-example where the binding lay in a sub directory.
-
-Usage :
-
-```cmake
-project_subdirs_add()
-```
-
-You also can specify a globbing pattern as argument to filter which folders
-will be looked for.
-
-To filter all directories that begin with a number followed by a dash the
-anything:
-
-```cmake
-project_subdirs_add("[0-9]-*")
-```
-
-## Advanced customization
-
-### Including additionnals cmake files
-
-#### Machine and system custom cmake files
-
-Advanced tuning is possible using addionnals cmake files that are included
-automatically from some specifics locations. They are included in that order:
-
-- Project CMake files normaly located in _<project-root-path>/conf.d/app-templates/cmake/cmake.d_
-- Home CMake files located in _$HOME/.config/app-templates/cmake.d_
-- System CMake files located in _/etc/app-templates/cmake.d_
-
-CMake files has to be named using the following convention: `XX-common*.cmake`
-or `XX-${PROJECT_NAME}*.cmake`, where `XX` are numbers, `*` file name
-(ie. `99-common-my_customs.cmake`).
-
-> **NOTE** You need to specify after numbers that indicate include order, to
-which project that file applies, if it applies to all project then use keyword
-`common`.
-
-So, saying that you should be aware that every normal cmake variables used at
-project level could be overwrited by home or system located cmake files if
-variables got the same name. Exceptions are cached variables set using
-**CACHE** keyword:
-
-Example:
-
-```cmake
-set(VARIABLE_NAME 'value string random' CACHE STRING 'docstring')
-```
-
-#### OS custom cmake files
-
-This is meant to personalize the project depending on the OS your are using.
-At the end of config.cmake, common.cmake will include lot of cmake file to
-customize project build depending on your plateform. It will detect your OS
-deducing it from file _/etc/os-release_ now as default in almost all Linux
-distribution.
-
-So you can use the value of field **ID_LIKE** or **ID** if the
-first one doesn't exists and add a cmake file for that distribution in your
-_conf.d/cmake/_ directory or relatively to your _app-templates_ submodule path
-_app-templates/../cmake/_
-
-Those files has to be named use the following scheme _XX-${OSRELEASE}*.cmake_
-where _XX_ are numbers, ${OSRELEASE} the **ID_LIKE** or **ID** field from
-_/etc/os-release_ file.
-
-### Include customs templated scripts
-
-As well as for additionnals cmake files you can include your own templated
-scripts that will be passed to cmake command `configure_file`.
-
-Just create your own script to the following directories:
-
-- Home location in _$HOME/.config/app-templates/scripts_
-- System location in _/etc/app-templates/scripts_
-
-Scripts only needs to use the extension `.in` to be parsed and configured by
-CMake command.
-
-## Autobuild script usage
-
-### Generation
-
-To be integrated in the Yocto build workflow you have to generate `autobuild`
-scripts using _autobuild_ target.
-
-To generate those scripts proceeds:
-
-```bash
-mkdir -p build
-cd build
-cmake .. && make autobuild
-```
-
-You should see _conf.d/autobuild/agl/autobuild_ file now.
-
-### Available targets
-
-Here are the available targets available from _autobuild_ scripts:
-
-- **clean** : clean build directory from object file and targets results.
-- **distclean** : delete build directory
-- **configure** : generate project Makefile from CMakeLists.txt files.
-- **build** : compile all project targets.
-- **package** : build and output a wgt package.
-
-You can specify variables that modify the behavior of compilation using
-the following variables:
-
-- **CONFIGURE_ARGS** : Variable used at **configure** time.
-- **BUILD_ARGS** : Variable used at **build** time.
-- **DEST** : Directory where to output ***wgt*** file.
-
-Variable as to be in CMake format. (ie: BUILD_ARGS="-DC_FLAGS='-g -O2'")
-
-Usage example:
-
-```bash
-./conf.d/autobuild/wgt/autobuild package DEST=/tmp
-```