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108 lines
4.6 KiB
ReStructuredText
108 lines
4.6 KiB
ReStructuredText
.. _build_toolchains:
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===========================
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Creating Toolchain Archives
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===========================
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There are various scripts in the repository for producing archives
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of the build tools (e.g. compilers and linkers) required to build.
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Clang
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=====
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See the ``build/build-clang`` directory. Read ``build/build-clang/README``
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for more.
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Windows
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=======
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The ``build/windows_toolchain.py`` script is used to build and manage
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Windows toolchain archives containing Visual Studio executables, SDKs,
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etc.
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The way Firefox build automation works is an archive containing the
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toolchain is produced and uploaded to an internal Mozilla server. The
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build automation will download, verify, and extract this archive before
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building. The archive is self-contained so machines don't need to install
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Visual Studio, SDKs, or various other dependencies. Unfortunately,
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Microsoft's terms don't allow Mozilla to distribute this archive
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publicly. However, the same tool can be used to create your own copy.
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Configuring Your System
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-----------------------
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It is **highly** recommended to perform this process on a fresh installation
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of Windows 7 or 10 (such as in a VM). Installing all updates through
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Windows Update is not only acceptable - it is encouraged. Although it
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shouldn't matter.
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Next, install Visual Studio 2017 Community. The download link can be found
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at https://www.visualstudio.com/vs/community/.
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Be sure to follow these install instructions:
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1. Choose a ``Custom`` installation and click ``Next``
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2. Select ``Programming Languages`` -> ``Visual C++`` (make sure all sub items are
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selected)
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3. Under ``Windows and Web Development`` uncheck everything except
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``Universal Windows App Development Tools`` and the items under it
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(should be ``Tools (1.3.1)...`` and the ``Windows 10 SDK``).
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Once Visual Studio 2017 Community has been installed, from a checkout
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of mozilla-central, run something like the following to produce a ZIP
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archive::
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$ ./mach python build/windows_toolchain.py create-zip vs2017_15.8.4
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The produced archive will be the argument to ``create-zip`` + ``.zip``.
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Firefox for Android with Gradle
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===============================
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To build Firefox for Android with Gradle in automation, archives
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containing both the Gradle executable and a Maven repository
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comprising the exact build dependencies are produced and uploaded to
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an internal Mozilla server. The build automation will download,
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verify, and extract these archive before building. These archives
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provide a self-contained Gradle and Maven repository so that machines
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don't need to fetch additional Maven dependencies at build time.
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(Gradle and the downloaded Maven dependencies can be both
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redistributed publicly.)
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Archiving the Gradle executable is straight-forward, but archiving a
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local Maven repository is not. Therefore a special Task Cluster
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Docker image and toolchain job exist for producing the required
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archives. The Docker image definition is rooted in
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``taskcluster/docker/android-build``. The Task Cluster toolchain job
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is named `android-gradle-dependencies`. The job runs in a container
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based on the custom Docker image and spawns a Sonatype Nexus proxying
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Maven repository process in the background. The job builds Firefox
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for Android using Gradle and the in-tree Gradle configuration rooted
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at ``build.gradle``. The spawned proxying Maven repository downloads
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external dependencies and collects them. After the Gradle build
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completes, the job archives the Gradle version used to build, and the
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downloaded Maven repository, and exposes them as Task Cluster
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artifacts.
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To update the version of Gradle in the archive produced, update
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``gradle/wrapper/gradle-wrapper.properties``. Be sure to also update
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the SHA256 checksum to prevent poisoning the build machines!
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To update the versions of Gradle dependencies used, update
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``dependencies`` sections in the in-tree Gradle configuration rooted
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at ``build.gradle``. Once you are confident your changes build
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locally, push a fresh build to try. The `android-gradle-dependencies`
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toolchain should run automatically, fetching your new dependencies and
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wiring them into the appropriate try build jobs.
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To update the version of Sonatype Nexus, update `NEXUS_VERSION` in the
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`android-build` Docker image.
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To modify the Sonatype Nexus configuration, typically to proxy a new
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remote Maven repository, modify
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`taskcluster/scripts/misc/android-gradle-dependencies/nexus.xml`.
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There is also a toolchain job that fetches the Android SDK and related
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packages. To update the versions of packaged fetched, modify
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`python/mozboot/mozboot/android-packages.txt` and update the various
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in-tree versions accordingly.
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