bitcoin/ci
fanquake 77b0a80ce7
Merge bitcoin/bitcoin#27682: build: Bump minimum supported Clang to clang-10
fa199ee614 ci: Drop NO_WERROR=1 for clang-10 build (MarcoFalke)
fad2c200f4 build: Bump minimum Clang to clang-10 (MarcoFalke)
fad7cfee8d doc: Remove outdated CentOS comment (MarcoFalke)

Pull request description:

  It doesn't make sense to support a minimum clang version that is difficult to install on all supported operating systems, which generally ship a later version:

  * Ubuntu Focal 20.04: https://packages.ubuntu.com/focal/clang-10 and https://packages.ubuntu.com/focal/clang-12
  * Debian Bullseye: https://packages.debian.org/bullseye/clang-13
  * CentOS 8 Stream: All Clang versions from 11.0 to 15.0

  Also, it allows to drop build code, which means it won't waste review when rolling over into cmake (`cmake/module/CheckStdFilesystem.cmake`).

ACKs for top commit:
  hebasto:
    ACK fa199ee614
  fanquake:
    ACK fa199ee614

Tree-SHA512: c1a0e8f191a6db866b8be3c9d254dc3f576fa021e2eaaeb68f3354554a8b38eaa90bbf9871ff92351b715e62a6b7b98cf94eba6dc53d7c951bddb6ad49ba7716
2023-05-18 11:05:08 +01:00
..
lint ci: Bump ci/lint/Dockerfile 2023-04-21 14:31:13 +02:00
retry
test Merge bitcoin/bitcoin#27682: build: Bump minimum supported Clang to clang-10 2023-05-18 11:05:08 +01:00
lint_run_all.sh scripted-diff: Bump copyright headers 2020-12-31 09:45:41 +01:00
README.md ci: Pass full env to CI pod to avoid missing a var 2023-05-05 08:46:35 +02:00
test_imagefile ci: Cache package manager install step 2023-01-28 17:59:07 +01:00
test_run_all.sh move-only: Move almost all CI_EXEC code to 06_script_b.sh 2023-05-10 14:10:38 +02:00

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

To run the default test stage,

./ci/test_run_all.sh

To run the test stage with a specific configuration,

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.

If no FILE_ENV has been specified or values are left out, 00_setup_env.sh is used as the default configuration with fallback values.

It is also possible to force a specific configuration without modifying the file. For example,

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 re-used when possible. Changes in the dependency-generator will trigger cache-invalidation and rebuilds as necessary.