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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import logging
import subprocess
import requests
from mozbuild.util import memoize
from redo import retry
logger = logging.getLogger(__name__)
PUSHLOG_CHANGESET_TMPL = (
"{repository}/json-pushes?version=2&changeset={revision}&tipsonly=1"
)
PUSHLOG_PUSHES_TMPL = (
"{repository}/json-pushes/?version=2&startID={push_id_start}&endID={push_id_end}"
)
def _query_pushlog(url):
response = retry(
requests.get,
attempts=5,
sleeptime=10,
args=(url,),
kwargs={"timeout": 60, "headers": {"User-Agent": "TaskCluster"}},
)
return response.json()["pushes"]
def find_hg_revision_push_info(repository, revision):
"""Given the parameters for this action and a revision, find the
pushlog_id of the revision."""
url = PUSHLOG_CHANGESET_TMPL.format(repository=repository, revision=revision)
pushes = _query_pushlog(url)
if len(pushes) != 1:
raise RuntimeError(
"Found {} pushlog_ids, expected 1, for {} revision {}: {}".format(
len(pushes), repository, revision, pushes
)
)
pushid = list(pushes.keys())[0]
return {
"pushdate": pushes[pushid]["date"],
"pushid": pushid,
"user": pushes[pushid]["user"],
}
@memoize
def get_push_data(repository, project, push_id_start, push_id_end):
url = PUSHLOG_PUSHES_TMPL.format(
repository=repository,
push_id_start=push_id_start - 1,
push_id_end=push_id_end,
)
try:
pushes = _query_pushlog(url)
return {
push_id: pushes[str(push_id)]
for push_id in range(push_id_start, push_id_end + 1)
}
# In the event of request times out, requests will raise a TimeoutError.
except requests.exceptions.Timeout:
logger.warning("json-pushes timeout")
# In the event of a network problem (e.g. DNS failure, refused connection, etc),
# requests will raise a ConnectionError.
except requests.exceptions.ConnectionError:
logger.warning("json-pushes connection error")
# In the event of the rare invalid HTTP response(e.g 404, 401),
# requests will raise an HTTPError exception
except requests.exceptions.HTTPError:
logger.warning("Bad Http response")
# When we get invalid JSON (i.e. 500 error), it results in a ValueError (bug 1313426)
except ValueError as error:
logger.warning(f"Invalid JSON, possible server error: {error}")
# We just print the error out as a debug message if we failed to catch the exception above
except requests.exceptions.RequestException as error:
logger.warning(error)
return None
@memoize
def get_json_pushchangedfiles(repository, revision):
url = "{}/json-pushchangedfiles/{}".format(repository.rstrip("/"), revision)
logger.debug("Querying version control for metadata: %s", url)
def get_pushchangedfiles():
response = requests.get(url, timeout=60)
return response.json()
return retry(get_pushchangedfiles, attempts=10, sleeptime=10)
def get_hg_revision_branch(root, revision):
"""Given the parameters for a revision, find the hg_branch (aka
relbranch) of the revision."""
return subprocess.check_output(
[
"hg",
"identify",
"-T",
"{branch}",
"--rev",
revision,
],
cwd=root,
universal_newlines=True,
)
# For these functions, we assume that run-task has correctly checked out the
# revision indicated by GECKO_HEAD_REF, so all that remains is to see what the
# current revision is. Mercurial refers to that as `.`.
def get_hg_commit_message(root, rev="."):
return subprocess.check_output(
["hg", "log", "-r", rev, "-T", "{desc}"], cwd=root, universal_newlines=True
)
def calculate_head_rev(root):
return subprocess.check_output(
["hg", "log", "-r", ".", "-T", "{node}"], cwd=root, universal_newlines=True
)
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