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[Notes] [Git][BuildGrid/buildgrid][master] 3 commits: CONTRIBUTING.rst: Add a sub-section about testing

Title: GitLab

Martin Blanchard pushed to branch master at BuildGrid / buildgrid

Commits:

7 changed files:

Changes:

  • CONTRIBUTING.rst
    ... ... @@ -142,13 +142,67 @@ their containing *package*, as such; modules which are entirely private to
    142 142 
     BuildGrid are named as such, e.g. ``_roy.py``.
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    144 144
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    +.. _codebase-testing:
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    +
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    +Testing
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    +-------
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    +
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    +BuildGrid is using `pytest`_ for regression and newly added code testing. The
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    +test suite contains a serie of unit-tests and also run linting tools in order to
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    +detect coding-style_ breakage. The full test suite is automatically executed by
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    +GitLab CI system for every push to the server. Passing all the tests is a
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    +mandatory requirement for any merge request to the trunk.
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    +
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    +.. _pytest: https://docs.pytest.org
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    +
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    +
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    +Running tests
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    +~~~~~~~~~~~~~
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    +
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    +In order to run the entire test suite, simply run:
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    +
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    +.. code-block:: sh
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    +
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    +   python3 setup.py test
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    +
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    +You can use the ``--addopt`` function to feed arguments to pytest. For example,
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    +if you want to see the ``stdout`` and ``stderr`` generated y the test, run:
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    +
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    +.. code-block:: sh
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    +
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    +   python3 setup.py test  --addopts -s
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    +
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    +If you want run a  specific test instead of the entire suite use:
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    +
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    +.. code-block:: sh
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    +
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    +   python3 setup.py test  --addopts tests/cas/test_client
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    +
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    +pyest's `usage documentation section`_ details the different command line
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    +options that can be used when invoking the test runner.
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    +
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    +.. _usage documentation section: https://docs.pytest.org/en/latest/usage.html
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    +
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    +
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    +Test coverage
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    +~~~~~~~~~~~~~
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    +
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    +We are doing our best at keeping BuildGrid's test coverage score as high as
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    +possible. Doing so, we ask for any merge request to include necessary test
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    +additions and/or modifications in order to maintain that coverage level. A
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    +detailed `coverage report`_ is produced and publish for any change merged to the
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    +trunk.
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    +
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    +.. _coverage report: https://buildgrid.gitlab.io/buildgrid/coverage/
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    +
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    +
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     .. _committer-access:
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     Committer access
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     ----------------
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     We'll hand out commit access to anyone who has successfully landed a single
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    -patch to the code base. Please request this via irc or the mailing list.
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    +patch to the code base. Please request this via Slack or the mailing list.
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     This of course relies on contributors being responsive and show willingness to
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     address problems after landing branches there should not be any problems here.

  • README.rst
    1 
    -.. _about:
    2 
    -
    3 
    -
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     .. image:: https://gitlab.com/Buildgrid/buildgrid/badges/master/pipeline.svg
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        :target: https://gitlab.com/BuildStream/buildstream/commits/master
    7 4
    8 5 
     .. image:: https://gitlab.com/BuildGrid/buildgrid/badges/master/coverage.svg?job=coverage
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        :target: https://buildgrid.gitlab.io/buildgrid/coverage
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    -
    7 
    +
    8 
    +
    9 
    +.. _about:
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    +
    11 11 
     About BuildGrid
    12 12 
     ===============
    13 13
    14 
    +
    15 
    +.. _what-is-it:
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    +
    14 17 
     What is BuildGrid?
    15 18 
     ------------------
    16 19
    ... ... @@ -49,7 +52,7 @@ Resources
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     - `GitLab repository`_
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     - `Bug tracking`_
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     - `Mailing list`_
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    -- `Slack channel`_  [`invite link`_]
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    +- `Slack channel`_ [`invite link`_]
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     .. _Homepage: https://buildgrid.build
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     .. _GitLab repository: https://gitlab.com/BuildGrid/buildgrid

  • docs/source/data/bazel-example-server.conf
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    +server:
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    +  port: 50051
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    +  insecure-mode: true
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    +
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    +instances:
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    +  - name: main
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    +
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    +    storages:
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    +      - !lru-storage &main-storage
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    +        size: 512MB
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    +
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    +    services:
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    +      - !action-cache &main-action
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    +        storage: *main-storage
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    +        max_cached_refs: 256
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    +        allow_updates: true
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    +      - !execution
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    +        storage: *main-storage
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    +        action_cache: *main-action
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    +      - !cas
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    +        storage: *main-storage
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    +      - !bytestream
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    +        storage: *main-storage
    \ No newline at end of file

  • docs/source/using.rst
    ... ... @@ -9,5 +9,5 @@ This section covers how to run an use the BuildGrid build service.
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     .. toctree::
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        :maxdepth: 2
    11 11
    12 
    -   using_dummy_build.rst
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    -   using_simple_build.rst
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    +   using_internal.rst
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    +   using_bazel.rst

  • docs/source/using_bazel.rst
    1 
    +
    2 
    +.. _bazel-builds:
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    +
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    +Bazel builds
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    +============
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    +
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    +`Bazel`_ is a *“fast, scalable, multi-language and extensible build system”*
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    +that supports remote build execution using the remote execution API (REAPI) v2
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    +since its `0.17 release`_.
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    +
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    +.. _Bazel: https://bazel.build
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    +.. _0.17 release: https://blog.bazel.build/2018/09/14/bazel-0.17.html
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    +
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    +
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    +.. _bazel-configuration:
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    +
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    +Configuration
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    +-------------
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    +
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    +Bazel accepts many options that can either be specified as command line
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    +arguments when involking the ``bazel`` tool or stored in a `.bazelrc`_
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    +configuration file. In order to activate remote build execution, the
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    +``bazel build`` subcommand needs to be given specific `build options`_,
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    +including:
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    +
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    +- ``--remote_executor``: remote execution endpoint's location, ``{host}:{port}``.
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    +- ``--remote_instance_name``: remote execution instance's name.
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    +- ``--spawn_strategy``: action execution method.
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    +- ``--genrule_strategy``: `genrules`_ execution method.
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    +
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    +Spawn and genrule strategies need to be set to ``remote`` for remote execution.
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    +
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    +As an example, in order to activate remote execution on the ``main`` instance of
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    +the remote execution server available at ``controller.grid.build`` on port
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    +``50051`` you should amend your ``.bazelrc`` with:
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    +
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    +.. code-block:: sh
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    +
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    +   build --spawn_strategy=remote --genrule_strategy=remote --remote_executor=controller.grid.build:50051 --remote_instance_name=main
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    +
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    +.. _.bazelrc: https://docs.bazel.build/versions/master/user-manual.html#bazelrc
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    +.. _build options: https://docs.bazel.build/versions/master/command-line-reference.html#build-options
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    +.. _genrules: https://docs.bazel.build/versions/master/be/general.html#genrule
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    +
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    +
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    +.. _bazel-example:
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    +
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    +Example build
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    +-------------
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    +
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    +The `bazel-examples`_ repository contains example Bazel workspaces that can be
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    +used for testing purpose. We'll focus here on instructions on how to build the
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    +`stage3 CPP example`_ running Bazel and BuildGrid on your local machine,
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    +compiling the C++ source code using host-tools.
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    +
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    +First, you need to checkout the bazel-examples repository sources:
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    +
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    +.. code-block:: sh
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    +
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    +   git clone https://github.com/bazelbuild/examples.git bazel-examples
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    +
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    +Next, change the current directory to the Bazel workspace root:
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    +
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    +.. code-block:: sh
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    +
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    +   cd bazel-examples/cpp-tutorial/stage3
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    +
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    +.. note::
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    +
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    +   All the commands in the instructions below are expected to be executed from
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    +   that root directory (the stage3 example workspace's root directory).
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    +
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    +Before running Bazel and building the example workspace, you'll have to setup
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    +and run a BuildGrid server and bot. A minimal server's configuration is given
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    +below, paste it in a ``server.conf`` file in the root directory:
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    +
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    +.. literalinclude:: ./data/bazel-example-server.conf
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    +   :language: yaml
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    +
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    +This defines a single ``main`` server instance implementing a
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    +``ContentAddressableStorage`` (CAS) + ``ByteStream`` service together with an
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    +``Execution`` + ``ActionCache`` service, both using the same in-memory storage.
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    +You can then start the BuildGrid server deamon using that configuration by
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    +running:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd server start server.conf
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    +
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    +In order to perform the actual build work, you need to attach a worker bot to
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    +that server for that ``main`` instance. A simple host-tools based bot should be
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    +enough to build the stage3 CPP example. Once you've make sure that your machine
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    +has ``gcc`` installed, run:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd bot --remote=http://localhost:50051 --parent=main temp-directory
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    +
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    +The ``--remote`` option is used to specify the server location (running on the
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    +same machine here, and listenning to port 50051). The ``--parent`` option is
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    +used to specifiy the server instance you except the bot to be attached to.
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    +
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    +The BuildGrid server is now ready to accept jobs and execute them. Bazel needs
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    +some :ref:`configuration <bazel-configuration>` in order to run remote builds.
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    +Below are the minimal build options you should use, paste them in a ``.bazelrc``
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    +file in the root directory:
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    +
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    +.. code-block:: sh
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    +
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    +   build --spawn_strategy=remote --genrule_strategy=remote --remote_executor=localhost:50051 --remote_instance_name=main
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    +
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    +This ativates Bazel's remote execution mode and points to the ``main`` remote
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    +execution server instance at ``localhost:50051``.
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    +
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    +You can finally have Bazel to build the example workspace by running:
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    +
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    +.. code-block:: sh
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    +
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    +   bazel build //main:hello-world
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    +
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    +You can verify that the example has been successfully build by runnig the
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    +generated executable. Simply invoke:
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    +
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    +.. code-block:: sh
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    +
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    +   ./bazel-bin/main/hello-world
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    +
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    +.. _bazel-examples: https://github.com/bazelbuild/examples
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    +.. _stage3 CPP example: https://github.com/bazelbuild/examples/tree/master/cpp-tutorial/stage3

  • docs/source/using_dummy_build.rst deleted
    1 
    -.. _dummy-build:
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    -
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    -Dummy build
    4 
    -===========
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    -
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    -In one terminal, start a server:
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    -
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    -.. code-block:: sh
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    -
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    -   bgd server start buildgrid/_app/settings/default.yml
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    -
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    -In another terminal, send a request for work:
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    -
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    -.. code-block:: sh
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    -
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    -   bgd execute request-dummy
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    -
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    -The stage should show as ``QUEUED`` as it awaits a bot to pick up the work:
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    -
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    -.. code-block:: sh
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    -
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    -   bgd execute list
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    -
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    -Create a bot session:
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    -
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    -.. code-block:: sh
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    -
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    -   bgd bot dummy
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    -
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    -Show the work as completed:
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    -
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    -.. code-block:: sh
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    -
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    -   bgd execute list

  • docs/source/using_simple_build.rst → docs/source/using_internal.rst
    1 
    +
    2 
    +.. _internal-builds:
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    +
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    +Internal builds
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    +===============
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    +
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    +
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    +.. _dummy-test:
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    +
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    +Dummy test
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    +----------
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    +
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    +In one terminal, start a server:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd server start buildgrid/_app/settings/default.yml
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    +
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    +In another terminal, send a request for work:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd execute request-dummy
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    +
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    +The stage should show as ``QUEUED`` as it awaits a bot to pick up the work:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd execute list
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    +
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    +Create a bot session:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd bot dummy
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    +
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    +Show the work as completed:
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    +
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    +.. code-block:: sh
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    +
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    +   bgd execute list
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    +
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    +
    1 44 
     .. _simple-build:
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     Simple build
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    -============
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    +------------
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     This example covers a simple build. The user will upload a directory containing
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     a C file and a command to the CAS. The bot will then fetch the uploaded

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