Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | # Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 3 | # Use of this source code is governed by a BSD-style license that can be |
| 4 | # found in the LICENSE file. |
| 5 | """Small utility function to find depot_tools and add it to the python path. |
| 6 | |
| 7 | Will throw an ImportError exception if depot_tools can't be found since it |
| 8 | imports breakpad. |
| 9 | |
| 10 | This can also be used as a standalone script to print out the depot_tools |
| 11 | directory location. |
| 12 | """ |
| 13 | |
| 14 | import os |
| 15 | import sys |
| 16 | |
| 17 | |
| 18 | def IsRealDepotTools(path): |
| 19 | return os.path.isfile(os.path.join(path, 'gclient.py')) |
| 20 | |
| 21 | |
| 22 | def add_depot_tools_to_path(): |
| 23 | """Search for depot_tools and add it to sys.path.""" |
| 24 | # First look if depot_tools is already in PYTHONPATH. |
| 25 | for i in sys.path: |
| 26 | if i.rstrip(os.sep).endswith('depot_tools') and IsRealDepotTools(i): |
| 27 | return i |
| 28 | # Then look if depot_tools is in PATH, common case. |
| 29 | for i in os.environ['PATH'].split(os.pathsep): |
| 30 | if IsRealDepotTools(i): |
| 31 | sys.path.append(i.rstrip(os.sep)) |
| 32 | return i |
| 33 | # Rare case, it's not even in PATH, look upward up to root. |
| 34 | root_dir = os.path.dirname(os.path.abspath(__file__)) |
| 35 | previous_dir = os.path.abspath(__file__) |
| 36 | while root_dir and root_dir != previous_dir: |
| 37 | i = os.path.join(root_dir, 'depot_tools') |
| 38 | if IsRealDepotTools(i): |
| 39 | sys.path.append(i) |
| 40 | return i |
| 41 | previous_dir = root_dir |
| 42 | root_dir = os.path.dirname(root_dir) |
| 43 | print >> sys.stderr, 'Failed to find depot_tools' |
| 44 | return None |
| 45 | |
| 46 | DEPOT_TOOLS_PATH = add_depot_tools_to_path() |
| 47 | |
| 48 | # pylint: disable=W0611 |
| 49 | import breakpad |
| 50 | |
| 51 | |
| 52 | def main(): |
| 53 | if DEPOT_TOOLS_PATH is None: |
| 54 | return 1 |
| 55 | print DEPOT_TOOLS_PATH |
| 56 | return 0 |
| 57 | |
| 58 | |
| 59 | if __name__ == '__main__': |
| 60 | sys.exit(main()) |