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===== Application bitbake wrapper recipes =====
These are simple wrapper recipes that will **''inherit aglwgt''** and produce a .wgt package from application sources if **these conditions** are met:
  * The build works with the SDK workflow already 
  * ''make package'' is a valid make target
  * The wgt file is written to ''package/<name>.wgt''

Also take **special care** that:
  * There are **no dependencies** outside the wgt
  * No dependencies **between** wgt's
  * Nothing should itself depend on a wgt
  * wgt's need to be self-contained

===== Shim recipe template =====
  $~/> cat recipes-demo-hmi/helloworld/helloworld_git.bb
  SUMMARY     = "helloworld application wrapper recipe"
  DESCRIPTION = "helloworld application wrapper recipe to build the app with bitbake"
  HOMEPAGE    = "https://gerrit.automotivelinux.org/gerrit/#/admin/projects/apps/XYZ"
  SECTION     = "apps"
  
  LICENSE     = "Apache-2.0"
  LIC_FILES_CHKSUM = "file://LICENSE;md5=ae6497158920d9524cf208c09cc4c984"
  
  SRC_URI = "git://gerrit.automotivelinux.org/gerrit/apps/XYZ;protocol=http"
  SRCREV  = "${AUTOREV}"
  
  PV = "1.0+git${SRCPV}"
  S  = "${WORKDIR}/git"
  
  inherit aglwgt
  # Add inherit statements for your build procedure
  # e.g. inherit cmake
  #   or inherit qmake5
  
  # build-time dependencies
  #DEPENDS += "qtquickcontrols2"
  # Add your build-time dependencies
  # for all libraries to make sure the link step works
  # Double check these are available at run-time and
  # adapt the platform's packagegroups if needed

===== Sample shim recipe =====

  $~/> cat recipes-demo-hmi/mixer/mixer_git.bb
  SUMMARY     = "Mixer for CES2017 AGL Demonstration"
  DESCRIPTION = "AGL HMI application for control of PulseAudio mixer elements"
  HOMEPAGE    = "https://gerrit.automotivelinux.org/gerrit/#/admin/projects/apps/mixer"
  SECTION     = "apps"
  
  LICENSE     = "Apache-2.0"
  LIC_FILES_CHKSUM = "file://LICENSE;md5=ae6497158920d9524cf208c09cc4c984"
  
  SRC_URI = "git://gerrit.automotivelinux.org/gerrit/apps/mixer;protocol=http"
  SRCREV  = "${AUTOREV}"
  
  PV = "1.0+git${SRCPV}"
  S  = "${WORKDIR}/git"
  
  inherit qmake5 aglwgt
  
  # build-time dependencies
  DEPENDS += "qtquickcontrols2 pulseaudio"

  
These variables are **not allowed** for the application wrapper recipes:
  * RDEPENDS   (these must come from the platform)



===== Example: Makefile =====

===== Example: CMakelists.txt =====

No example yet. Things are discussed on Jira:
  - https://jira.automotivelinux.org/browse/SPEC-495
  - https://jira.automotivelinux.org/browse/SPEC-503
===== Example: qmake.pro =====

The HVAC application is built using Qt and qmake.
Check this example: [[https://git.automotivelinux.org/apps/hvac/tree/]].

===== Autobuild migration =====

A warning is issued on old wgt build:

<code>
WARNING: navigation-git-r0 do_aglwgt_package: OBSOLETE: You must have an autobuild script located in:
WARNING: navigation-git-r0 do_aglwgt_package: autobuild/agl/ from the project root source folder
WARNING: navigation-git-r0 do_aglwgt_package: with filename autobuild which should generate
WARNING: navigation-git-r0 do_aglwgt_package: a .wgt file using wgtpack in the build
WARNING: navigation-git-r0 do_aglwgt_package: root folder calling:
WARNING: navigation-git-r0 do_aglwgt_package: ./autobuild/agl/autobuild package DEST=<BUILDDIR>
WARNING: navigation-git-r0 do_aglwgt_package: Fix your package as it will not work within the SDK
WARNING: navigation-git-r0 do_aglwgt_package: See: https://wiki.automotivelinux.org/troubleshooting/app-recipes
</code>

This warning is about the migration of **wgt** package build from various methods to only one, the **autobuild** script.

This script was originally located in **<ROOT-FOLDER>/conf.d/autobuild/{agl,linux}/autobuild** but now it should be located directly at the project root folder **<ROOT-FOLDER>/autobuild/{agl,linux}/autobuild**. Yocto takes the **autobuild** in the **agl** subdirectory. So you need the script **<ROOT-FOLDER>/autobuild/agl/autobuild**.

An example can be found in gerrit [[https://gerrit.automotivelinux.org/gerrit/gitweb?p=src/cmake-apps-module.git;a=blob_plain;f=src/template.d/autobuild/agl/autobuild.in;hb=HEAD|cmake-apps-module]] repository and use the CMake module to build the **wgt** so you maybe have to tweak it a little bit.
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