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| 1 | **************************** | ||
| 2 | Setting Up and Using Toaster | ||
| 3 | **************************** | ||
| 4 | |||
| 5 | Starting Toaster for Local Development | ||
| 6 | ====================================== | ||
| 7 | |||
| 8 | Once you have set up the Yocto Project and installed the Toaster system | ||
| 9 | dependencies as described in the "`Preparing to Use | ||
| 10 | Toaster <#toaster-manual-start>`__" chapter, you are ready to start | ||
| 11 | Toaster. | ||
| 12 | |||
| 13 | Navigate to the root of your `Source | ||
| 14 | Directory <&YOCTO_DOCS_REF_URL;#source-directory>`__ (e.g. ``poky``): $ | ||
| 15 | cd poky Once in that directory, source the build environment script: $ | ||
| 16 | source oe-init-build-env Next, from the build directory (e.g. | ||
| 17 | ``poky/build``), start Toaster using this command: $ source toaster | ||
| 18 | start You can now run your builds from the command line, or with Toaster | ||
| 19 | as explained in section "`Using the Toaster Web | ||
| 20 | Interface <#using-the-toaster-web-interface>`__". | ||
| 21 | |||
| 22 | To access the Toaster web interface, open your favorite browser and | ||
| 23 | enter the following: http://127.0.0.1:8000 | ||
| 24 | |||
| 25 | Setting a Different Port | ||
| 26 | ======================== | ||
| 27 | |||
| 28 | By default, Toaster starts on port 8000. You can use the ``WEBPORT`` | ||
| 29 | parameter to set a different port. For example, the following command | ||
| 30 | sets the port to "8400": $ source toaster start webport=8400 | ||
| 31 | |||
| 32 | Setting Up Toaster Without a Web Server | ||
| 33 | ======================================= | ||
| 34 | |||
| 35 | You can start a Toaster environment without starting its web server. | ||
| 36 | This is useful for the following: | ||
| 37 | |||
| 38 | - Capturing a command-line build’s statistics into the Toaster database | ||
| 39 | for examination later. | ||
| 40 | |||
| 41 | - Capturing a command-line build’s statistics when the Toaster server | ||
| 42 | is already running. | ||
| 43 | |||
| 44 | - Having one instance of the Toaster web server track and capture | ||
| 45 | multiple command-line builds, where each build is started in its own | ||
| 46 | “noweb” Toaster environment. | ||
| 47 | |||
| 48 | The following commands show how to start a Toaster environment without | ||
| 49 | starting its web server, perform BitBake operations, and then shut down | ||
| 50 | the Toaster environment. Once the build is complete, you can close the | ||
| 51 | Toaster environment. Before closing the environment, however, you should | ||
| 52 | allow a few minutes to ensure the complete transfer of its BitBake build | ||
| 53 | statistics to the Toaster database. If you have a separate Toaster web | ||
| 54 | server instance running, you can watch this command-line build’s | ||
| 55 | progress and examine the results as soon as they are posted: $ source | ||
| 56 | toaster start noweb $ bitbake target $ source toaster stop | ||
| 57 | |||
| 58 | Setting Up Toaster Without a Build Server | ||
| 59 | ========================================= | ||
| 60 | |||
| 61 | You can start a Toaster environment with the “New Projects” feature | ||
| 62 | disabled. Doing so is useful for the following: | ||
| 63 | |||
| 64 | - Sharing your build results over the web server while blocking others | ||
| 65 | from starting builds on your host. | ||
| 66 | |||
| 67 | - Allowing only local command-line builds to be captured into the | ||
| 68 | Toaster database. | ||
| 69 | |||
| 70 | Use the following command to set up Toaster without a build server: $ | ||
| 71 | source toaster start nobuild webport=port | ||
| 72 | |||
| 73 | Setting up External Access | ||
| 74 | ========================== | ||
| 75 | |||
| 76 | By default, Toaster binds to the loop back address (i.e. localhost), | ||
| 77 | which does not allow access from external hosts. To allow external | ||
| 78 | access, use the ``WEBPORT`` parameter to open an address that connects | ||
| 79 | to the network, specifically the IP address that your NIC uses to | ||
| 80 | connect to the network. You can also bind to all IP addresses the | ||
| 81 | computer supports by using the shortcut "0.0.0.0:port". | ||
| 82 | |||
| 83 | The following example binds to all IP addresses on the host: $ source | ||
| 84 | toaster start webport=0.0.0.0:8400 This example binds to a specific IP | ||
| 85 | address on the host's NIC: $ source toaster start | ||
| 86 | webport=192.168.1.1:8400 | ||
| 87 | |||
| 88 | The Directory for Cloning Layers | ||
| 89 | ================================ | ||
| 90 | |||
| 91 | Toaster creates a ``_toaster_clones`` directory inside your Source | ||
| 92 | Directory (i.e. ``poky``) to clone any layers needed for your builds. | ||
| 93 | |||
| 94 | Alternatively, if you would like all of your Toaster related files and | ||
| 95 | directories to be in a particular location other than the default, you | ||
| 96 | can set the ``TOASTER_DIR`` environment variable, which takes precedence | ||
| 97 | over your current working directory. Setting this environment variable | ||
| 98 | causes Toaster to create and use ``$TOASTER_DIR./_toaster_clones``. | ||
| 99 | |||
| 100 | .. _toaster-the-build-directory: | ||
| 101 | |||
| 102 | The Build Directory | ||
| 103 | =================== | ||
| 104 | |||
| 105 | Toaster creates a build directory within your Source Directory (e.g. | ||
| 106 | ``poky``) to execute the builds. | ||
| 107 | |||
| 108 | Alternatively, if you would like all of your Toaster related files and | ||
| 109 | directories to be in a particular location, you can set the | ||
| 110 | ``TOASTER_DIR`` environment variable, which takes precedence over your | ||
| 111 | current working directory. Setting this environment variable causes | ||
| 112 | Toaster to use ``$TOASTER_DIR/build`` as the build directory. | ||
| 113 | |||
| 114 | .. _toaster-creating-a-django-super-user: | ||
| 115 | |||
| 116 | Creating a Django Superuser | ||
| 117 | =========================== | ||
| 118 | |||
| 119 | Toaster is built on the `Django | ||
| 120 | framework <https://www.djangoproject.com/>`__. Django provides an | ||
| 121 | administration interface you can use to edit Toaster configuration | ||
| 122 | parameters. | ||
| 123 | |||
| 124 | To access the Django administration interface, you must create a | ||
| 125 | superuser by following these steps: | ||
| 126 | |||
| 127 | 1. If you used ``pip3``, which is recommended, to set up the Toaster | ||
| 128 | system dependencies, you need be sure the local user path is in your | ||
| 129 | ``PATH`` list. To append the pip3 local user path, use the following | ||
| 130 | command: $ export PATH=$PATH:$HOME/.local/bin | ||
| 131 | |||
| 132 | 2. From the directory containing the Toaster database, which by default | ||
| 133 | is the `Build Directory <&YOCTO_DOCS_REF_URL;#build-directory>`__, | ||
| 134 | invoke the ``createsuperuser`` command from ``manage.py``: $ cd | ||
| 135 | ~/poky/build $ ../bitbake/lib/toaster/manage.py createsuperuser | ||
| 136 | |||
| 137 | 3. Django prompts you for the username, which you need to provide. | ||
| 138 | |||
| 139 | 4. Django prompts you for an email address, which is optional. | ||
| 140 | |||
| 141 | 5. Django prompts you for a password, which you must provide. | ||
| 142 | |||
| 143 | 6. Django prompts you to re-enter your password for verification. | ||
| 144 | |||
| 145 | After completing these steps, the following confirmation message | ||
| 146 | appears: Superuser created successfully. | ||
| 147 | |||
| 148 | Creating a superuser allows you to access the Django administration | ||
| 149 | interface through a browser. The URL for this interface is the same as | ||
| 150 | the URL used for the Toaster instance with "/admin" on the end. For | ||
| 151 | example, if you are running Toaster locally, use the following URL: | ||
| 152 | http://127.0.0.1:8000/admin You can use the Django administration | ||
| 153 | interface to set Toaster configuration parameters such as the build | ||
| 154 | directory, layer sources, default variable values, and BitBake versions. | ||
| 155 | |||
| 156 | .. _toaster-setting-up-a-production-instance-of-toaster: | ||
| 157 | |||
| 158 | Setting Up a Production Instance of Toaster | ||
| 159 | =========================================== | ||
| 160 | |||
| 161 | You can use a production instance of Toaster to share the Toaster | ||
| 162 | instance with remote users, multiple users, or both. The production | ||
| 163 | instance is also the setup that can handle heavier loads on the web | ||
| 164 | service. Use the instructions in the following sections to set up | ||
| 165 | Toaster to run builds through the Toaster web interface. | ||
| 166 | |||
| 167 | .. _toaster-production-instance-requirements: | ||
| 168 | |||
| 169 | Requirements | ||
| 170 | ------------ | ||
| 171 | |||
| 172 | Be sure you meet the following requirements: | ||
| 173 | |||
| 174 | .. note:: | ||
| 175 | |||
| 176 | You must comply with all Apache, | ||
| 177 | mod-wsgi | ||
| 178 | , and Mysql requirements. | ||
| 179 | |||
| 180 | - Have all the build requirements as described in the "`Preparing to | ||
| 181 | Use Toaster <#toaster-manual-start>`__" chapter. | ||
| 182 | |||
| 183 | - Have an Apache webserver. | ||
| 184 | |||
| 185 | - Have ``mod-wsgi`` for the Apache webserver. | ||
| 186 | |||
| 187 | - Use the Mysql database server. | ||
| 188 | |||
| 189 | - If you are using Ubuntu 16.04, run the following: $ sudo apt-get | ||
| 190 | install apache2 libapache2-mod-wsgi-py3 mysql-server python3-pip | ||
| 191 | libmysqlclient-dev | ||
| 192 | |||
| 193 | - If you are using Fedora 24 or a RedHat distribution, run the | ||
| 194 | following: $ sudo dnf install httpd python3-mod_wsgi python3-pip | ||
| 195 | mariadb-server mariadb-devel python3-devel | ||
| 196 | |||
| 197 | - If you are using openSUSE Leap 42.1, run the following: $ sudo zypper | ||
| 198 | install apache2 apache2-mod_wsgi-python3 python3-pip mariadb | ||
| 199 | mariadb-client python3-devel | ||
| 200 | |||
| 201 | .. _toaster-installation-steps: | ||
| 202 | |||
| 203 | Installation | ||
| 204 | ------------ | ||
| 205 | |||
| 206 | Perform the following steps to install Toaster: | ||
| 207 | |||
| 208 | 1. Create toaster user and set its home directory to | ||
| 209 | ``/var/www/toaster``: $ sudo /usr/sbin/useradd toaster -md | ||
| 210 | /var/www/toaster -s /bin/false $ sudo su - toaster -s /bin/bash | ||
| 211 | |||
| 212 | 2. Checkout a copy of ``poky`` into the web server directory. You will | ||
| 213 | be using ``/var/www/toaster``: $ git clone | ||
| 214 | git://git.yoctoproject.org/poky $ git checkout DISTRO_NAME_NO_CAP | ||
| 215 | |||
| 216 | 3. Install Toaster dependencies using the --user flag which keeps the | ||
| 217 | Python packages isolated from your system-provided packages: $ cd | ||
| 218 | /var/www/toaster/ $ pip3 install --user -r | ||
| 219 | ./poky/bitbake/toaster-requirements.txt $ pip3 install --user | ||
| 220 | mysqlclient | ||
| 221 | |||
| 222 | .. note:: | ||
| 223 | |||
| 224 | Isolating these packages is not required but is recommended. | ||
| 225 | Alternatively, you can use your operating system's package | ||
| 226 | manager to install the packages. | ||
| 227 | |||
| 228 | 4. Configure Toaster by editing | ||
| 229 | ``/var/www/toaster/poky/bitbake/lib/toaster/toastermain/settings.py`` | ||
| 230 | as follows: | ||
| 231 | |||
| 232 | - Edit the | ||
| 233 | `DATABASES <https://docs.djangoproject.com/en/1.11/ref/settings/#databases>`__ | ||
| 234 | settings: DATABASES = { 'default': { 'ENGINE': | ||
| 235 | 'django.db.backends.mysql', 'NAME': 'toaster_data', 'USER': | ||
| 236 | 'toaster', 'PASSWORD': 'yourpasswordhere', 'HOST': 'localhost', | ||
| 237 | 'PORT': '3306', } } | ||
| 238 | |||
| 239 | - Edit the | ||
| 240 | `SECRET_KEY <https://docs.djangoproject.com/en/1.11/ref/settings/#std:setting-SECRET_KEY>`__: | ||
| 241 | SECRET_KEY = 'your_secret_key' | ||
| 242 | |||
| 243 | - Edit the | ||
| 244 | `STATIC_ROOT <https://docs.djangoproject.com/en/1.11/ref/settings/#std:setting-STATIC_ROOT>`__: | ||
| 245 | STATIC_ROOT = '/var/www/toaster/static_files/' | ||
| 246 | |||
| 247 | 5. Add the database and user to the ``mysql`` server defined earlier: $ | ||
| 248 | mysql -u root -p mysql> CREATE DATABASE toaster_data; mysql> CREATE | ||
| 249 | USER 'toaster'@'localhost' identified by 'yourpasswordhere'; mysql> | ||
| 250 | GRANT all on toaster_data.\* to 'toaster'@'localhost'; mysql> quit | ||
| 251 | |||
| 252 | 6. Get Toaster to create the database schema, default data, and gather | ||
| 253 | the statically-served files: $ cd /var/www/toaster/poky/ $ | ||
| 254 | ./bitbake/lib/toaster/manage.py migrate $ TOASTER_DIR=`pwd\` | ||
| 255 | TEMPLATECONF='poky' \\ ./bitbake/lib/toaster/manage.py checksettings | ||
| 256 | $ ./bitbake/lib/toaster/manage.py collectstatic In the previous | ||
| 257 | example, from the ``poky`` directory, the ``migrate`` command | ||
| 258 | ensures the database schema changes have propagated correctly (i.e. | ||
| 259 | migrations). The next line sets the Toaster root directory | ||
| 260 | ``TOASTER_DIR`` and the location of the Toaster configuration file | ||
| 261 | ``TOASTER_CONF``, which is relative to ``TOASTER_DIR``. The | ||
| 262 | ``TEMPLATECONF`` value reflects the contents of | ||
| 263 | ``poky/.templateconf``, and by default, should include the string | ||
| 264 | "poky". For more information on the Toaster configuration file, see | ||
| 265 | the "`Configuring Toaster <#configuring-toaster>`__" section. | ||
| 266 | |||
| 267 | This line also runs the ``checksettings`` command, which configures | ||
| 268 | the location of the Toaster `Build | ||
| 269 | Directory <&YOCTO_DOCS_REF_URL;#build-directory>`__. The Toaster | ||
| 270 | root directory ``TOASTER_DIR`` determines where the Toaster build | ||
| 271 | directory is created on the file system. In the example above, | ||
| 272 | ``TOASTER_DIR`` is set as follows: /var/www/toaster/poky This | ||
| 273 | setting causes the Toaster build directory to be: | ||
| 274 | /var/www/toaster/poky/build | ||
| 275 | |||
| 276 | Finally, the ``collectstatic`` command is a Django framework command | ||
| 277 | that collects all the statically served files into a designated | ||
| 278 | directory to be served up by the Apache web server as defined by | ||
| 279 | ``STATIC_ROOT``. | ||
| 280 | |||
| 281 | 7. Test and/or use the Mysql integration with Toaster’s Django web | ||
| 282 | server. At this point, you can start up the normal Toaster Django | ||
| 283 | web server with the Toaster database in Mysql. You can use this web | ||
| 284 | server to confirm that the database migration and data population | ||
| 285 | from the Layer Index is complete. | ||
| 286 | |||
| 287 | To start the default Toaster Django web server with the Toaster | ||
| 288 | database now in Mysql, use the standard start commands: $ source | ||
| 289 | oe-init-build-env $ source toaster start Additionally, if Django is | ||
| 290 | sufficient for your requirements, you can use it for your release | ||
| 291 | system and migrate later to Apache as your requirements change. | ||
| 292 | |||
| 293 | 8. Add an Apache configuration file for Toaster to your Apache web | ||
| 294 | server's configuration directory. If you are using Ubuntu or Debian, | ||
| 295 | put the file here: /etc/apache2/conf-available/toaster.conf If you | ||
| 296 | are using Fedora or RedHat, put it here: | ||
| 297 | /etc/httpd/conf.d/toaster.conf If you are using OpenSUSE, put it | ||
| 298 | here: /etc/apache2/conf.d/toaster.conf Following is a sample Apache | ||
| 299 | configuration for Toaster you can follow: Alias /static | ||
| 300 | /var/www/toaster/static_files <Directory | ||
| 301 | /var/www/toaster/static_files> <IfModule mod_access_compat.c> Order | ||
| 302 | allow,deny Allow from all </IfModule> <IfModule | ||
| 303 | !mod_access_compat.c> Require all granted </IfModule> </Directory> | ||
| 304 | <Directory /var/www/toaster/poky/bitbake/lib/toaster/toastermain> | ||
| 305 | <Files "wsgi.py"> Require all granted </Files> </Directory> | ||
| 306 | WSGIDaemonProcess toaster_wsgi | ||
| 307 | python-path=/var/www/toaster/poky/bitbake/lib/toaster:/var/www/toaster/.local/lib/python3.4/site-packages | ||
| 308 | WSGIScriptAlias / | ||
| 309 | "/var/www/toaster/poky/bitbake/lib/toaster/toastermain/wsgi.py" | ||
| 310 | <Location /> WSGIProcessGroup toaster_wsgi </Location> If you are | ||
| 311 | using Ubuntu or Debian, you will need to enable the config and | ||
| 312 | module for Apache: $ sudo a2enmod wsgi $ sudo a2enconf toaster $ | ||
| 313 | chmod +x bitbake/lib/toaster/toastermain/wsgi.py Finally, restart | ||
| 314 | Apache to make sure all new configuration is loaded. For Ubuntu, | ||
| 315 | Debian, and OpenSUSE use: $ sudo service apache2 restart For Fedora | ||
| 316 | and RedHat use: $ sudo service httpd restart | ||
| 317 | |||
| 318 | 9. Prepare the systemd service to run Toaster builds. Here is a sample | ||
| 319 | configuration file for the service: [Unit] Description=Toaster | ||
| 320 | runbuilds [Service] Type=forking User=toaster | ||
| 321 | ExecStart=/usr/bin/screen -d -m -S runbuilds | ||
| 322 | /var/www/toaster/poky/bitbake/lib/toaster/runbuilds-service.sh start | ||
| 323 | ExecStop=/usr/bin/screen -S runbuilds -X quit | ||
| 324 | WorkingDirectory=/var/www/toaster/poky [Install] | ||
| 325 | WantedBy=multi-user.target Prepare the ``runbuilds-service.sh`` | ||
| 326 | script that you need to place in the | ||
| 327 | ``/var/www/toaster/poky/bitbake/lib/toaster/`` directory by setting | ||
| 328 | up executable permissions: #!/bin/bash #export | ||
| 329 | http_proxy=http://proxy.host.com:8080 #export | ||
| 330 | https_proxy=http://proxy.host.com:8080 #export | ||
| 331 | GIT_PROXY_COMMAND=$HOME/bin/gitproxy cd ~/poky/ source | ||
| 332 | ./oe-init-build-env build source ../bitbake/bin/toaster $1 noweb [ | ||
| 333 | "$1" == 'start' ] && /bin/bash | ||
| 334 | |||
| 335 | 10. Run the service: # service runbuilds start Since the service is | ||
| 336 | running in a detached screen session, you can attach to it using | ||
| 337 | this command: $ sudo su - toaster $ screen -rS runbuilds You can | ||
| 338 | detach from the service again using "Ctrl-a" followed by "d" key | ||
| 339 | combination. | ||
| 340 | |||
| 341 | You can now open up a browser and start using Toaster. | ||
| 342 | |||
| 343 | Using the Toaster Web Interface | ||
| 344 | =============================== | ||
| 345 | |||
| 346 | The Toaster web interface allows you to do the following: | ||
| 347 | |||
| 348 | - Browse published layers in the `OpenEmbedded Layer | ||
| 349 | Index <http://layers.openembedded.org>`__ that are available for your | ||
| 350 | selected version of the build system. | ||
| 351 | |||
| 352 | - Import your own layers for building. | ||
| 353 | |||
| 354 | - Add and remove layers from your configuration. | ||
| 355 | |||
| 356 | - Set configuration variables. | ||
| 357 | |||
| 358 | - Select a target or multiple targets to build. | ||
| 359 | |||
| 360 | - Start your builds. | ||
| 361 | |||
| 362 | - See what was built (recipes and packages) and what packages were | ||
| 363 | installed into your final image. | ||
| 364 | |||
| 365 | - Browse the directory structure of your image. | ||
| 366 | |||
| 367 | - See the value of all variables in your build configuration, and which | ||
| 368 | files set each value. | ||
| 369 | |||
| 370 | - Examine error, warning and trace messages to aid in debugging. | ||
| 371 | |||
| 372 | - See information about the BitBake tasks executed and reused during | ||
| 373 | your build, including those that used shared state. | ||
| 374 | |||
| 375 | - See dependency relationships between recipes, packages and tasks. | ||
| 376 | |||
| 377 | - See performance information such as build time, task time, CPU usage, | ||
| 378 | and disk I/O. | ||
| 379 | |||
| 380 | .. _web-interface-videos: | ||
| 381 | |||
| 382 | Toaster Web Interface Videos | ||
| 383 | ---------------------------- | ||
| 384 | |||
| 385 | Following are several videos that show how to use the Toaster GUI: | ||
| 386 | |||
| 387 | - *Build Configuration:* This | ||
| 388 | `video <https://www.youtube.com/watch?v=qYgDZ8YzV6w>`__ overviews and | ||
| 389 | demonstrates build configuration for Toaster. | ||
| 390 | |||
| 391 | - *Build Custom Layers:* This | ||
| 392 | `video <https://www.youtube.com/watch?v=QJzaE_XjX5c>`__ shows you how | ||
| 393 | to build custom layers that are used with Toaster. | ||
| 394 | |||
| 395 | - *Toaster Homepage and Table Controls:* This | ||
| 396 | `video <https://www.youtube.com/watch?v=QEARDnrR1Xw>`__ goes over the | ||
| 397 | Toaster entry page, and provides an overview of the data manipulation | ||
| 398 | capabilities of Toaster, which include search, sorting and filtering | ||
| 399 | by different criteria. | ||
| 400 | |||
| 401 | - *Build Dashboard:* This | ||
| 402 | `video <https://www.youtube.com/watch?v=KKqHYcnp2gE>`__ shows you the | ||
| 403 | build dashboard, a page providing an overview of the information | ||
| 404 | available for a selected build. | ||
| 405 | |||
| 406 | - *Image Information:* This | ||
| 407 | `video <https://www.youtube.com/watch?v=XqYGFsmA0Rw>`__ walks through | ||
| 408 | the information Toaster provides about images: packages installed and | ||
| 409 | root file system. | ||
| 410 | |||
| 411 | - *Configuration:* This | ||
| 412 | `video <https://www.youtube.com/watch?v=UW-j-T2TzIg>`__ provides | ||
| 413 | Toaster build configuration information. | ||
| 414 | |||
| 415 | - *Tasks:* This `video <https://www.youtube.com/watch?v=D4-9vGSxQtw>`__ | ||
| 416 | shows the information Toaster provides about the tasks run by the | ||
| 417 | build system. | ||
| 418 | |||
| 419 | - *Recipes and Packages Built:* This | ||
| 420 | `video <https://www.youtube.com/watch?v=x-6dx4huNnw>`__ shows the | ||
| 421 | information Toaster provides about recipes and packages built. | ||
| 422 | |||
| 423 | - *Performance Data:* This | ||
| 424 | `video <https://www.youtube.com/watch?v=qWGMrJoqusQ>`__ shows the | ||
| 425 | build performance data provided by Toaster. | ||
| 426 | |||
| 427 | .. _a-note-on-the-local-yocto-project-release: | ||
| 428 | |||
| 429 | Additional Information About the Local Yocto Project Release | ||
| 430 | ------------------------------------------------------------ | ||
| 431 | |||
| 432 | This section only applies if you have set up Toaster for local | ||
| 433 | development, as explained in the "`Starting Toaster for Local | ||
| 434 | Development <#starting-toaster-for-local-development>`__" section. | ||
| 435 | |||
| 436 | When you create a project in Toaster, you will be asked to provide a | ||
| 437 | name and to select a Yocto Project release. One of the release options | ||
| 438 | you will find is called "Local Yocto Project". | ||
| 439 | |||
| 440 | When you select the "Local Yocto Project" release, Toaster will run your | ||
| 441 | builds using the local Yocto Project clone you have in your computer: | ||
| 442 | the same clone you are using to run Toaster. Unless you manually update | ||
| 443 | this clone, your builds will always use the same Git revision. | ||
| 444 | |||
| 445 | If you select any of the other release options, Toaster will fetch the | ||
| 446 | tip of your selected release from the upstream `Yocto Project | ||
| 447 | repository <https://git.yoctoproject.org>`__ every time you run a build. | ||
| 448 | Fetching this tip effectively means that if your selected release is | ||
| 449 | updated upstream, the Git revision you are using for your builds will | ||
| 450 | change. If you are doing development locally, you might not want this | ||
| 451 | change to happen. In that case, the "Local Yocto Project" release might | ||
| 452 | be the right choice. | ||
| 453 | |||
| 454 | However, the "Local Yocto Project" release will not provide you with any | ||
| 455 | compatible layers, other than the three core layers that come with the | ||
| 456 | Yocto Project: | ||
| 457 | |||
| 458 | - `openembedded-core <http://layers.openembedded.org/layerindex/branch/master/layer/openembedded-core/>`__ | ||
| 459 | |||
| 460 | - `meta-poky <http://layers.openembedded.org/layerindex/branch/master/layer/meta-poky/>`__ | ||
| 461 | |||
| 462 | - `meta-yocto-bsp <http://layers.openembedded.org/layerindex/branch/master/layer/meta-yocto-bsp/>`__ | ||
| 463 | |||
| 464 | If you want to build any other layers, you will need to manually import | ||
| 465 | them into your Toaster project, using the "Import layer" page. | ||
| 466 | |||
| 467 | .. _toaster-web-interface-preferred-version: | ||
| 468 | |||
| 469 | Building a Specific Recipe Given Multiple Versions | ||
| 470 | -------------------------------------------------- | ||
| 471 | |||
| 472 | Occasionally, a layer might provide more than one version of the same | ||
| 473 | recipe. For example, the ``openembedded-core`` layer provides two | ||
| 474 | versions of the ``bash`` recipe (i.e. 3.2.48 and 4.3.30-r0) and two | ||
| 475 | versions of the ``which`` recipe (i.e. 2.21 and 2.18). The following | ||
| 476 | figure shows this exact scenario: | ||
| 477 | |||
| 478 | By default, the OpenEmbedded build system builds one of the two recipes. | ||
| 479 | For the ``bash`` case, version 4.3.30-r0 is built by default. | ||
| 480 | Unfortunately, Toaster as it exists, is not able to override the default | ||
| 481 | recipe version. If you would like to build bash 3.2.48, you need to set | ||
| 482 | the | ||
| 483 | ```PREFERRED_VERSION`` <&YOCTO_DOCS_REF_URL;#var-PREFERRED_VERSION>`__ | ||
| 484 | variable. You can do so from Toaster, using the "Add variable" form, | ||
| 485 | which is available in the "BitBake variables" page of the project | ||
| 486 | configuration section as shown in the following screen: | ||
| 487 | |||
| 488 | To specify ``bash`` 3.2.48 as the version to build, enter | ||
| 489 | "PREFERRED_VERSION_bash" in the "Variable" field, and "3.2.48" in the | ||
| 490 | "Value" field. Next, click the "Add variable" button: | ||
| 491 | |||
| 492 | After clicking the "Add variable" button, the settings for | ||
| 493 | ``PREFERRED_VERSION`` are added to the bottom of the BitBake variables | ||
| 494 | list. With these settings, the OpenEmbedded build system builds the | ||
| 495 | desired version of the recipe rather than the default version: | ||
