britney2-ubuntu fork which runs on ci.lubuntu.me
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
Go to file
Paul Gevers c219c42804
Add text to excuses in case autopkgtest is delayed
6 years ago
britney2 Add text to excuses in case autopkgtest is delayed 6 years ago
ci .gitlab-ci.yml: Run tests with coverage on gitlab 7 years ago
doc doc/short-intro: Use literal style for package names etc. 7 years ago
tests britney: Rewrite should_* to be (almost) suite agnostic 6 years ago
.coveragerc Update coveragerc to exclude sitecustomize.py 7 years ago
.dockerignore travis: Build Debian stable docker image and use it for testing 7 years ago
.gitignore Update .gitignore 7 years ago
.gitlab-ci.yml .gitlab-ci: Only publish on commits to master 7 years ago
.travis.yml .travis.yml: Use master branch for brtiney2-tests 7 years ago
Dockerfile travis: Build Debian stable docker image and use it for testing 7 years ago
INSTALL Update INSTALL with python3-amqplib as that is needed for autopkgtest 7 years ago
LICENSE Initial import, excuses generation almost working. 19 years ago
Makefile Add Makefile to generate documentation 7 years ago
README.md Move install+config docs from README to doc/setting-up-britney.rst 7 years ago
TODO TODO: fix typoes; thanks, Julien Cristau 14 years ago
britney.conf Grant elbrus age-days hint 6 years ago
britney.conf.template Put autopkgtest state files in their own namespace 7 years ago
britney.py britney: Remove {sources,binaries} from Britney 6 years ago
britney_nobreakall.conf Grant elbrus age-days hint 6 years ago

README.md

Britney - Keeps suites installable and up to date

Britney is a program to compute an update of a Debian-based package suite by feeding it updates from (one or more) source-suite(s). A few known use cases:

  • Debian uses it to update testing based on unstable
  • Ubuntu uses it to update their latest development suite using a "hidden" -proposed-updates suite as source

Britney's primary goal is too keep packages in the target suite installable (e.g. Debian testing) while keeping it up to date with its primary source suite (e.g. Debian unstable).

Installing, configuring and using Britney

Please see [doc/setting-up-britney.rst].

Migration items

Britney generally works with a "migration item", which is a group of binary packages (and possibly a source package). Packages are bundled into these migration items under the following rules:

  1. "source migration": An update of the source package. This will include all the binary packages built from that source version (regardless of architecture).
    • Can contain binaries built from earlier source version depending on the setting of "IGNORE_CRUFT"
    • Britney refers to these as "${SOURCE_NAME}"
  2. "binary migration": An update of binary packages on a given architecture to an existing source package in the target suite.
    • Two common cases: Built for the first time on a new architecture and binNMUs
    • Britney refers to all cases of these as "{SOURCE_NAME}/{ARCHITECTURE}"
  3. "removal item": A removal of a source or binary package.
    • Note that it is only possible to trigger "source" removals via hints. Binary removals are items generated by Britney to clean up the target suite.
    • Britney refers to these as "-{SOURCE_NAME}" or "-{BINARY_NAME}/${ARCHITECTURE}" depending on the case.

Migration rules (excuses/policies)

Britney applies a number of policies to migration items before attempting to migrate them to the target suite. These policies can "reject" a package and prevent it from migrating. Some policies/built-in rules:

  • Age policy: Lets source migrations age a bit before they are allowed to migrate
    • Supports variable length based on package urgency
  • RC Bug policy: Rejects packages with regressions in RC bugs
    • Requires an external tool to keep the bug lists up to date
  • Keeps architectures in sync: Source migrations updating existing packages only occur if architectures are up to date
    • Can be configured to ignore certain architectures.