Mike Frysinger | f601376 | 2019-06-13 02:30:51 -0400 | [diff] [blame] | 1 | # -*- coding:utf-8 -*- |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 2 | # |
| 3 | # Copyright (C) 2008 The Android Open Source Project |
| 4 | # |
| 5 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | # you may not use this file except in compliance with the License. |
| 7 | # You may obtain a copy of the License at |
| 8 | # |
| 9 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | # |
| 11 | # Unless required by applicable law or agreed to in writing, software |
| 12 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | # See the License for the specific language governing permissions and |
| 15 | # limitations under the License. |
| 16 | |
Mike Frysinger | 8a11f6f | 2019-08-27 00:26:15 -0400 | [diff] [blame] | 17 | """Logic for tracing repo interactions. |
| 18 | |
| 19 | Activated via `repo --trace ...` or `REPO_TRACE=1 repo ...`. |
| 20 | """ |
| 21 | |
Sarah Owens | cecd1d8 | 2012-11-01 22:59:27 -0700 | [diff] [blame] | 22 | from __future__ import print_function |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 23 | import sys |
| 24 | import os |
Mike Frysinger | 8a11f6f | 2019-08-27 00:26:15 -0400 | [diff] [blame] | 25 | |
| 26 | # Env var to implicitly turn on tracing. |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 27 | REPO_TRACE = 'REPO_TRACE' |
| 28 | |
Mike Frysinger | 8a11f6f | 2019-08-27 00:26:15 -0400 | [diff] [blame] | 29 | _TRACE = os.environ.get(REPO_TRACE) == '1' |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 30 | |
David Pursehouse | 819827a | 2020-02-12 15:20:19 +0900 | [diff] [blame] | 31 | |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 32 | def IsTrace(): |
| 33 | return _TRACE |
| 34 | |
David Pursehouse | 819827a | 2020-02-12 15:20:19 +0900 | [diff] [blame] | 35 | |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 36 | def SetTrace(): |
| 37 | global _TRACE |
| 38 | _TRACE = True |
| 39 | |
David Pursehouse | 819827a | 2020-02-12 15:20:19 +0900 | [diff] [blame] | 40 | |
Shawn O. Pearce | ad3193a | 2009-04-18 09:54:51 -0700 | [diff] [blame] | 41 | def Trace(fmt, *args): |
| 42 | if IsTrace(): |
Sarah Owens | cecd1d8 | 2012-11-01 22:59:27 -0700 | [diff] [blame] | 43 | print(fmt % args, file=sys.stderr) |