bdddf364c9
fa91bf2559d2e839592bf1dc1d423d5fb1c3573e ci: Skip git install if it is already installed (MarcoFalke) c65fde483133a04964cc8757c96005b78d9e8ca8 ci: vary /tmp/env (Sjors Provoost) Pull request description: * Currently, running separate CI tasks at the same time may intermittently fail, because they race to read/write `/tmp/env`. Fix this by adding `$CONTAINER_NAME` to the file name. * Also, add `$USER`, while touching the line, to allow different users to run the same CI task at the same time. * Also, skip the git install if there is no need. Ref: https://github.com/bitcoin/bitcoin/pull/29274 ACKs for top commit: Sjors: ACK fa91bf2559d2e839592bf1dc1d423d5fb1c3573e BrandonOdiwuor: ACK fa91bf2559d2e839592bf1dc1d423d5fb1c3573e hebasto: ACK fa91bf2559d2e839592bf1dc1d423d5fb1c3573e. Tree-SHA512: 9a8479255a2afb6618f9d0796488d9430ba95266b90ce39536a9817c1974ca4049beeaab5355a38b25171f76fc386dbec06b1919aaa079f08a5a0c0a146232c8
CI Scripts
This directory contains scripts for each build step in each build stage.
Running a Stage Locally
Be aware that the tests will be built and run in-place, so please run at your own risk. If the repository is not a fresh git clone, you might have to clean files from previous builds or test runs first.
The ci needs to perform various sysadmin tasks such as installing packages or writing to the user's home directory. While it should be fine to run the ci system locally on you development box, the ci scripts can generally be assumed to have received less review and testing compared to other parts of the codebase. If you want to keep the work tree clean, you might want to run the ci system in a virtual machine with a Linux operating system of your choice.
To allow for a wide range of tested environments, but also ensure reproducibility to some extent, the test stage
requires bash, docker, and python3 to be installed. To install all requirements on Ubuntu, run
sudo apt install bash docker.io python3
It is recommended to run the ci system in a clean env. To run the test stage with a specific configuration,
env -i HOME="$HOME" PATH="$PATH" USER="$USER" bash -c 'FILE_ENV="./ci/test/00_setup_env_arm.sh" ./ci/test_run_all.sh'
Configurations
The test files (FILE_ENV) are constructed to test a wide range of
configurations, rather than a single pass/fail. This helps to catch build
failures and logic errors that present on platforms other than the ones the
author has tested.
Some builders use the dependency-generator in ./depends, rather than using
the system package manager to install build dependencies. This guarantees that
the tester is using the same versions as the release builds, which also use
./depends.
It is also possible to force a specific configuration without modifying the file. For example,
env -i HOME="$HOME" PATH="$PATH" USER="$USER" bash -c 'MAKEJOBS="-j1" FILE_ENV="./ci/test/00_setup_env_arm.sh" ./ci/test_run_all.sh'
The files starting with 0n (n greater than 0) are the scripts that are run
in order.
Cache
In order to avoid rebuilding all dependencies for each build, the binaries are cached and reused when possible. Changes in the dependency-generator will trigger cache-invalidation and rebuilds as necessary.