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a01a9ce0b2
sapling/build/fbcode_builder
History
Wez Furlong a01a9ce0b2 getdeps: dyndeps: gracefully handle empty files 
Summary:
Don't error out if we can't read the ELF/MACH-O header; just treat
it is not an object.

Reviewed By: chadaustin, simpkins

Differential Revision: D19253434

fbshipit-source-id: c5ecc7f0bc7a20e2611b7e2ff754355155f095da
2020-01-09 07:30:32 -08:00
..
CMake getdeps: add an install_fb_python_executable() function to the CMake utilities 2019-12-03 21:42:27 -08:00
getdeps getdeps: dyndeps: gracefully handle empty files 2020-01-09 07:30:32 -08:00
manifests rust toolchain: use RUSTC_BOOTSTRAP when building 2019-12-06 06:05:36 -08:00
specs Fixes for travic CI build (#3) 2019-12-10 04:56:56 -08:00
.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 Fixes for travic CI build (#3) 2019-12-10 04:56:56 -08:00
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 Fixes for travic CI build (#3) 2019-12-10 04:56:56 -08:00
getdeps.py getdeps: automatically detect if a build appears to be Facebook-internal 2019-11-20 16:04:33 -08:00
LICENSE Relicense getdeps from BSD to MIT 2019-10-10 13:20:05 -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 Fixes for travic CI build (#3) 2019-12-10 04:56:56 -08:00
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

README.md

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.