sapling/build/fbcode_builder
Adam Simpkins 605d1808e0 add a create_fetcher() method to ManifestLoader
Summary:
The ManifestLoader contains all of the state needed to create a fetcher
object, so define a helper method on this object to create a fetcher.

Reviewed By: strager

Differential Revision: D16477395

fbshipit-source-id: 6de0942fe6b8de26c18c82bf99343f5467dc006a
2019-07-31 20:56:52 -07:00
..
CMake transitively carry thrift dependencies forward 2019-07-17 11:29:24 -07:00
getdeps add a create_fetcher() method to ManifestLoader 2019-07-31 20:56:52 -07:00
manifests move CmakeLists to tld 2019-07-31 12:40:08 -07:00
specs Fix gmock handling in rsocket opensource build 2019-07-30 23:00:11 -07:00
.gitignore add fbcode_builder sources 2019-04-26 11:31:58 -07:00
docker_build_with_ccache.sh add fbcode_builder sources 2019-04-26 11:31:58 -07:00
docker_builder.py add fbcode_builder sources 2019-04-26 11:31:58 -07:00
docker_enable_ipv6.sh add fbcode_builder sources 2019-04-26 11:31:58 -07:00
fbcode_builder_config.py add fbcode_builder sources 2019-04-26 11:31:58 -07:00
fbcode_builder.py Fix gmock handling in rsocket opensource build 2019-07-30 23:00:11 -07:00
getdeps.py add a create_fetcher() method to ManifestLoader 2019-07-31 20:56:52 -07:00
make_docker_context.py update docker os_image to ubuntu18 and gcc7 2019-05-10 16:39:16 -07:00
parse_args.py add fbcode_builder sources 2019-04-26 11:31:58 -07:00
README.docker add fbcode_builder sources 2019-04-26 11:31:58 -07:00
README.md update README.md on ubuntu and gcc version 2019-05-27 13:33:44 -07:00
shell_builder.py add fbcode_builder sources 2019-04-26 11:31:58 -07:00
shell_quoting.py add fbcode_builder sources 2019-04-26 11:31:58 -07:00
travis_docker_build.sh add fbcode_builder sources 2019-04-26 11:31:58 -07:00
utils.py add fbcode_builder sources 2019-04-26 11:31:58 -07:00

Easy builds for Facebook projects

This is a Python 2.6+ library designed to simplify continuous-integration (and other builds) of Facebook projects.

For external Travis builds, the entry point is travis_docker_build.sh.

Using Docker to reproduce a CI build

If you are debugging or enhancing a CI build, you will want to do so from host or virtual machine that can run a reasonably modern version of Docker:

./make_docker_context.py --help  # See available options for OS & compiler
# Tiny wrapper that starts a Travis-like build with compile caching:
os_image=ubuntu:18.04 \
  gcc_version=7 \
  make_parallelism=2 \
  travis_cache_dir=~/travis_ccache \
    ./travis_docker_build.sh &> build_at_$(date +'%Y%m%d_%H%M%S').log

IMPORTANT: Read fbcode_builder/README.docker before diving in!

Setting travis_cache_dir turns on ccache, saving a fresh copy of ccache.tgz after every build. This will invalidate Docker's layer cache, foring it to rebuild starting right after OS package setup, but the builds will be fast because all the compiles will be cached. To iterate without invalidating the Docker layer cache, just cd /tmp/docker-context-* and interact with the Dockerfile normally. Note that the docker-context-* dirs preserve a copy of ccache.tgz as they first used it.

What to read next

The *.py files are fairly well-documented. You might want to peruse them in this order:

  • shell_quoting.py
  • fbcode_builder.py
  • docker_builder.py
  • make_docker_context.py

As far as runs on Travis go, the control flow is:

  • .travis.yml calls
  • travis_docker_build.sh calls
  • docker_build_with_ccache.sh

This library also has an (unpublished) component targeting Facebook's internal continuous-integration platform using the same build-step DSL.

Contributing

Please follow the ambient style (or PEP-8), and keep the code Python 2.6 compatible -- since fbcode_builder's only dependency is Docker, we want to allow building projects on even fairly ancient base systems. We also wish to be compatible with Python 3, and would appreciate it if you kept that in mind while making changes also.