branch master updated (7fbcb3a -> b0b87cc)

[Christopher Baines]

cbaines pushed a change to branch master
in repository data-service.

    from 7fbcb3a  Store channel instance derivations in a separate transaction
     new 643753f  Better handle retries for jobs
     new 481b1c1  Fix latest processed commit for branch
     new 570c667  Tweak exception handling when loading revisions
     new 9a9d156  Update most-recent-commits-for-branch to handle data 
availability
     new b0b87cc  Improve the revision page when a revision hasn't been 
processed

The 5 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 guix-data-service/jobs/load-new-guix-revision.scm | 87 +++++++++++++----------
 guix-data-service/model/git-branch.scm            | 70 +++++++++++-------
 guix-data-service/model/guix-revision.scm         | 14 ++++
 guix-data-service/web/repository/controller.scm   |  4 +-
 guix-data-service/web/revision/controller.scm     | 87 +++++++++++++++--------
 guix-data-service/web/revision/html.scm           | 30 +++++++-
 6 files changed, 198 insertions(+), 94 deletions(-)