[buildd-tools-devel] [GIT] sbuild branch, master, updated. debian/sbuild-0.60.8-1-13-g27175af

[Roger Leigh]

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- Log -----------------------------------------------------------------
commit 27175af08d84de246b6a572615f2998feb734d0c
Author: Roger Leigh <rleigh at debian.org>
Date:   Mon Jan 3 21:19:29 2011 +0000

    debian: Close #608789

commit dbf152d502e4816eac1ff4ffd2ead9b93e05e40c
Author: Modestas Vainius <modax at debian.org>
Date:   Mon Jan 3 02:29:50 2011 +0200

    AptitudeResolver: define a custom SolutionCost.
    
    aptitude 0.6.2 release replaced resolver tiers with resolver costs. sbuild
    AptitudeResolver used to rely on resolver tiers to deliver the following
    behaviour:
    
    1) Install non-default versions only if there is no solution among default (aka
    candidate) package versions.
    2) Solution should contain versions from sources with the highest possible
    priority (when pulling from non-default versions).
    
    While default SolutionCost (i.e. "safety, priority") configuration is supposed
    to deliver this, it's apparently not enough. In particular:
    
    1) "priority" cost component is broken in aptitude releases up to 0.6.3-3.2
    (see #608786). It does not prioritize non-default versions by their
    pin-priorities.  However, thanks to Non-Default-Level safety level, the issue
    does not affect configurations which have apt sources at two (one default and
    one non-default) or fewer pin priorities. As a result, standard buildd
    configurations (unstable, experimental, backports) are not affected by this
    bug.
    
    2) Once Non-Default safety level is breached, it is hard to guess what set of
    non-default versions the solution will produce (it will be based on the "score"
    criteria that is not easily predictable). Yet requirements are pretty clear: we
    want as few non-default versions as possible. Fortunately, we can tell aptitude
    that.
    
    So sbuild custom SolutionCost achieves the following:
    
    1) it gets the safest solution (tries only default versions first, then a mix of
    default and non-default versions),
    2) installs versions from the highest possible pin-priority source,
    3) installs as few non-default versions as possible,
    4) and finally picks a solution with the best score.
    
    See /usr/share/doc/aptitude/html/en/ch02s03s04.html (aptitude-doc-en package)
    for more information on aptitude resolver cost calculation.
    
    Signed-off-by: Modestas Vainius <modax at debian.org>
    Signed-off-by: Roger Leigh <rleigh at debian.org>

commit a47aa6af592d340603c401c9e7dd16ebb0e48ccd
Author: Roger Leigh <rleigh at debian.org>
Date:   Mon Jan 3 21:06:00 2011 +0000

    debian: Close #608659

commit 74cbd18e1fa7e2efb89937d46248a9bbc3b87e36
Author: Modestas Vainius <modax at debian.org>
Date:   Sun Jan 2 15:28:18 2011 +0200

    Do not filter out environment variables starting with DEBIAN_ by default.
    
    Notably, the fix enables export of DEBIAN_FRONTEND=noninteractive in the build
    environment.
    
    Signed-off-by: Modestas Vainius <modax at debian.org>
    Signed-off-by: Roger Leigh <rleigh at debian.org>

-----------------------------------------------------------------------

Summary of changes:
 debian/changelog               |    7 ++++++-
 lib/Sbuild/AptitudeResolver.pm |    1 +
 lib/Sbuild/Conf.pm             |    2 +-
 3 files changed, 8 insertions(+), 2 deletions(-)


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