def merge_builds(target: Build, build: Build) -> Build:
# explicitly unset the default id as target should begin as an empty instance
target.id = None
# Store the original build so we can retrieve its ID or number later, or
# show a list of all builds in the UI
target.original.append(build)
# These properties should theoretically always be the same within a build
# group, so merging is not necessary. We assign here so the initial build
# gets populated.
target.source = build.source
target.label = build.source.revision.message
# Merge properties, if they already exist. In the first run, everything
# will be empty, since every group is initialized with an empty build.
# Afterwards, we always use the more extreme value (e.g. earlier start
# date or worse result).
target.stats = target.stats + build.stats if target.stats else build.stats
target.status = (
Status(max(target.status.value, build.status.value))
if target.status
else build.status
)
target.result = (
Result(max(target.result.value, build.result.value))
if target.result
else build.result
)
target.date_started = (
min(target.date_started, build.date_started)
if target.date_started and build.date_started
else target.date_started or build.date_started
)
target.date_finished = (
max(target.date_finished, build.date_finished)
if target.date_finished and build.date_finished
else target.date_finished or build.date_finished
)
target.provider = (
"%s, %s" % (target.provider, build.provider)
if target.provider
else build.provider
)
# NOTE: The build number is not merged, as it would not convey any meaning
# in the context of a build group. In that fashion, build numbers should
# not be used in the UI, until we create a better interface.
# NOTE: We do not merge data here, as it is not really used in the UI
# If there is an actual use for data, then it should be merged or appended
return target
def merge_build_group(
build_group: Tuple[Any, List[Build]], required_hook_ids: List[str] = None
) -> Build:
# XXX(dcramer): required_hook_ids is still dirty here, but its our simplest way
# to get it into place
grouped_builds = groupby(
build_group, lambda build: (str(build.hook_id), build.provider)
)
latest_builds = [
max(build, key=lambda build: build.number) for _, build in grouped_builds
]
build = Build()
build.original = []
if set(required_hook_ids or ()).difference(
set(str(b.hook_id) for b in build_group)
):
build.result = Result.failed
return reduce(merge_builds, latest_builds, build)