def from_pull_request(cls, pr: PullRequest) \
-> Union['UpdateRequest', IgnoredRequest]:
"""
Construct from a Github pull request.
:param pr: The pull request.
:return: The constructed update request.
"""
if pr.is_merged():
return IgnoredRequest.merged
if pr.changed_files != 1:
return IgnoredRequest.invalid
# system file after merge
file = pr.get_files()[0]
# construct download url of the original file
orig_file = cls.FILE_URL.format(repo=pr.base.repo.full_name,
commit=pr.base.sha,
file=file.filename)
# retrieve the original and patched files
resp = requests.get(orig_file)
if not resp.ok:
raise ReconstructionError('Unable to retrieve the original file: '
'%d %s' %
(resp.status_code, resp.reason))
original = resp.text
resp = requests.get(file.raw_url)
if not resp.ok:
raise ReconstructionError('Unable to retrieve the original file: '
'%d %s' %
(resp.status_code, resp.reason))
patched = resp.text
# read xml and reconstruct system update object
update = None
try:
adapter = oec.Adapter()
update = data_compare(adapter.read_system(io.StringIO(original)),
adapter.read_system(io.StringIO(patched)))
if update is None:
logging.debug('No changes detected on ' + pr.number)
return IgnoredRequest.invalid
except Exception as e:
logging.debug(e)
return IgnoredRequest.invalid
message, reference = UpdateRequest._parse_description(pr.body)
return UpdateRequest(update,
title=pr.title,
message=message,
reference=reference,
pullreq_num=pr.number,
pullreq_url=pr.html_url,
branch=pr.head.label,
rejected=pr.state == "closed")
def _pr_from_github_object(github_pr: GithubPullRequest) -> PullRequest:
return PullRequest(
title=github_pr.title,
id=github_pr.number,
status=PRStatus.merged
if github_pr.is_merged() else PRStatus[github_pr.state],
url=github_pr.html_url,
description=github_pr.body,
author=github_pr.user.name,
source_branch=github_pr.head.ref,
target_branch=github_pr.base.ref,
created=github_pr.created_at,
)
