forked from mirrors/gecko-dev
faa5410de1
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D162661
95 lines
3 KiB
Python
95 lines
3 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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"""
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Support for optimizing tasks based on the set of files that have changed.
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"""
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import logging
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import os
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from subprocess import CalledProcessError
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from mozbuild.util import memoize
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from mozpack.path import join as join_path
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from mozpack.path import match as mozpackmatch
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from mozversioncontrol import InvalidRepoPath, get_repository_object
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from gecko_taskgraph import GECKO
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from gecko_taskgraph.util.hg import get_json_automationrelevance
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logger = logging.getLogger(__name__)
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@memoize
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def get_changed_files(repository, revision):
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"""
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Get the set of files changed in the push headed by the given revision.
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Responses are cached, so multiple calls with the same arguments are OK.
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"""
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contents = get_json_automationrelevance(repository, revision)
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try:
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changesets = contents["changesets"]
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except KeyError:
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# We shouldn't hit this error in CI.
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if os.environ.get("MOZ_AUTOMATION"):
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raise
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# We're likely on an unpublished commit, grab changed files from
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# version control.
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return get_locally_changed_files(GECKO)
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logger.debug("{} commits influencing task scheduling:".format(len(changesets)))
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changed_files = set()
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for c in changesets:
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desc = "" # Support empty desc
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if c["desc"]:
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desc = c["desc"].splitlines()[0].encode("ascii", "ignore")
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logger.debug(" {cset} {desc}".format(cset=c["node"][0:12], desc=desc))
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changed_files |= set(c["files"])
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return changed_files
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def check(params, file_patterns):
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"""Determine whether any of the files changed in the indicated push to
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https://hg.mozilla.org match any of the given file patterns."""
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repository = params.get("head_repository")
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revision = params.get("head_rev")
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if not repository or not revision:
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logger.warning(
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"Missing `head_repository` or `head_rev` parameters; "
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"assuming all files have changed"
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)
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return True
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changed_files = get_changed_files(repository, revision)
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if "comm_head_repository" in params:
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repository = params.get("comm_head_repository")
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revision = params.get("comm_head_rev")
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if not revision:
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logger.warning(
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"Missing `comm_head_rev` parameters; " "assuming all files have changed"
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)
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return True
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changed_files |= {
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join_path("comm", file) for file in get_changed_files(repository, revision)
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}
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for pattern in file_patterns:
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for path in changed_files:
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if mozpackmatch(path, pattern):
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return True
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return False
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@memoize
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def get_locally_changed_files(repo):
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try:
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vcs = get_repository_object(repo)
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return set(vcs.get_outgoing_files("AM"))
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except (InvalidRepoPath, CalledProcessError):
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return set()
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