Index: utils.py |
=================================================================== |
--- utils.py (revision 0) |
+++ utils.py (working copy) |
@@ -0,0 +1,73 @@ |
+#!/usr/bin/python |
+# Copyright 201t The Chromium Authors. All rights reserved. |
kjellander_chromium
2014/12/08 13:58:08
201t -> 2014.
phoglund_chromium
2014/12/08 14:26:16
Done.
|
+# Use of this source code is governed by a BSD-style license that can be |
+# found in the LICENSE file. |
+ |
+"""Utilities for all our deps-management stuff.""" |
+ |
+import hashlib |
+import os |
+import shutil |
+import sys |
+import tarfile |
+import zipfile |
+ |
+ |
+def ComputeSHA1(path): |
+ if not os.path.exists(path): |
kjellander_chromium
2014/12/08 13:58:08
Returning 0 for non-existing files would be unexpe
phoglund_chromium
2014/12/08 14:26:16
That would introduce a lot of cruft in the calling
kjellander_chromium
2014/12/08 14:52:25
Fair enough.
|
+ return 0 |
+ |
+ sha1 = hashlib.sha1() |
+ file_to_hash = open(path, 'rb') |
+ try: |
+ sha1.update(file_to_hash.read()) |
+ finally: |
+ file_to_hash.close() |
+ |
+ return sha1.hexdigest() |
+ |
+ |
+# This is necessary since Windows won't allow us to unzip onto an existing dir. |
kjellander_chromium
2014/12/08 13:58:08
"This is" is referencing what? I think this should
phoglund_chromium
2014/12/08 14:26:16
Deleted the comment.
phoglund_chromium
2014/12/08 14:26:16
Done.
|
+def DeleteDirNextToGclient(directory): |
+ # Sanity check to avoid nuking the wrong dirs. |
+ if not os.path.exists('.gclient'): |
+ raise Exception('Invoked from wrong dir; invoke from dir with .gclient') |
+ print 'Deleting %s in %s...' % (directory, os.getcwd()) |
+ shutil.rmtree(directory, ignore_errors=True) |
+ |
+ |
+def UnpackToWorkingDir(archive_path): |
+ extension = os.path.splitext(archive_path)[1] |
+ if extension == '.zip': |
+ _Unzip(archive_path) |
+ else: |
+ _Untar(archive_path) |
+ |
+ |
+def _Unzip(path): |
+ print 'Unzipping %s in %s...' % (path, os.getcwd()) |
+ zip_file = zipfile.ZipFile(path) |
+ try: |
+ zip_file.extractall() |
+ finally: |
+ zip_file.close() |
+ |
+ |
+def _Untar(path): |
+ print 'Untarring %s in %s...' % (path, os.getcwd()) |
+ tar_file = tarfile.open(path, 'r:gz') |
+ try: |
+ tar_file.extractall() |
+ finally: |
+ tar_file.close() |
+ |
+ |
+def GetPlatform(): |
+ if sys.platform.startswith('win'): |
+ return 'win' |
+ if sys.platform.startswith('linux'): |
+ return 'linux' |
+ if sys.platform.startswith('darwin'): |
+ return 'mac' |
+ raise Exception("Can't run on platform %s." % sys.platform) |
kjellander_chromium
2014/12/08 13:58:08
Single-quote string and escape it like Can\'t inst
phoglund_chromium
2014/12/08 14:26:16
I watched a python readability review and this was
kjellander_chromium
2014/12/08 14:52:25
Acknowledged.
|
+ |
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