1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
# -*- coding: utf-8 -*-
# Copyright 2020 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Module for manipulating llvm-project-copy. Generally intended for tests."""
from __future__ import print_function
import datetime
import os
import subprocess
import sys
import get_llvm_hash
import git_llvm_rev
def get_location() -> str:
"""Gets the absolute path for llvm-project-copy."""
my_dir = os.path.dirname(os.path.abspath(__file__))
return os.path.join(my_dir, 'llvm-project-copy')
def ensure_up_to_date():
"""Ensures that llvm-project-copy is checked out and semi-up-to-date."""
checkout = get_location()
if not os.path.isdir(checkout):
print(
'No llvm-project exists locally; syncing it. This takes a while.',
file=sys.stderr)
actual_checkout = get_llvm_hash.GetAndUpdateLLVMProjectInLLVMTools()
assert checkout == actual_checkout, '%s != %s' % (actual_checkout, checkout)
commit_timestamp = subprocess.check_output(
[
'git', 'log', '-n1', '--format=%ct',
'origin/' + git_llvm_rev.MAIN_BRANCH
],
cwd=checkout,
encoding='utf-8',
)
commit_time = datetime.datetime.fromtimestamp(int(commit_timestamp.strip()))
now = datetime.datetime.now()
time_since_last_commit = now - commit_time
# Arbitrary, but if it's been more than 2d since we've seen a commit, it's
# probably best to bring us up-to-date.
if time_since_last_commit <= datetime.timedelta(days=2):
return
print(
'%d days have elapsed since the last commit to %s; auto-syncing' %
(time_since_last_commit.days, checkout),
file=sys.stderr)
result = subprocess.run(['git', 'fetch', 'origin'], check=False, cwd=checkout)
if result.returncode:
print(
'Sync failed somehow; hoping that things are fresh enough, then...',
file=sys.stderr)
|
