gclient: print a warning if a dep would get deleted or moved in the future

testing_support/fake_repos.py

 #!/usr/bin/env python
 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generate fake repositories for testing."""
 
 import atexit
 import datetime
 import errno
@@ skipping 734 matching lines @@
     # parent timestamp on different repositories and the parent revision
     # otherwise.
     self._set_svn_commit_date('1', '2011-10-01T03:00:00.000000Z')
     self._set_svn_commit_date('2', '2011-10-09T03:00:00.000000Z')
     self._set_svn_commit_date('3', '2011-10-02T03:00:00.000000Z')
 
   def populateGit(self):
     pass
 
 
+class FakeRepoSkiaDEPS(FakeReposBase):
+  """Simulates the Skia DEPS transition in Chrome."""
+
+  NB_GIT_REPOS = 5
+
+  DEPS_svn_pre = """deps = {
+  'src/third_party/skia/gyp': '%(svn_base)sskia/gyp',
+  'src/third_party/skia/include': '%(svn_base)sskia/include',
+  'src/third_party/skia/src': '%(svn_base)sskia/src',
+}"""
+
+  DEPS_git_pre = """deps = {
+  'src/third_party/skia/gyp': '%(git_base)srepo_3',
+  'src/third_party/skia/include': '%(git_base)srepo_4',
+  'src/third_party/skia/src': '%(git_base)srepo_5',
+}"""
+
+  DEPS_post = """deps = {
+  'src/third_party/skia': '%(git_base)srepo_1',
+}"""
+
+  def populateSvn(self):
+    """Create revisions which simulate the Skia DEPS transition in Chrome."""
+    subprocess2.check_call(
+        ['svn', 'checkout', self.svn_base, self.svn_checkout,
+         '-q', '--non-interactive', '--no-auth-cache',
+         '--username', self.USERS[0][0], '--password', self.USERS[0][1]])
+    assert os.path.isdir(join(self.svn_checkout, '.svn'))
+
+    # Skia repo.
+    self._commit_svn({
+        'skia/skia_base_file': 'root-level file.',
+        'skia/gyp/gyp_file': 'file in the gyp directory',
+        'skia/include/include_file': 'file in the include directory',
+        'skia/src/src_file': 'file in the src directory',
+    })
+
+    # Chrome repo.
+    self._commit_svn({
+        'trunk/src/DEPS': self.DEPS_svn_pre % {'svn_base': self.svn_base},
+        'trunk/src/myfile': 'svn/trunk/src@1'
+    })
+    self._commit_svn({
+        'trunk/src/DEPS': self.DEPS_post % {'git_base': self.git_base},
+        'trunk/src/myfile': 'svn/trunk/src@2'
+    })
+
+  def populateGit(self):
+    # Skia repo.
+    self._commit_git('repo_1', {
+        'skia_base_file': 'root-level file.',
+        'gyp/gyp_file': 'file in the gyp directory',
+        'include/include_file': 'file in the include directory',
+        'src/src_file': 'file in the src directory',
+    })
+    self._commit_git('repo_3', { # skia/gyp
+        'gyp_file': 'file in the gyp directory',
+    })
+    self._commit_git('repo_4', { # skia/include
+        'include_file': 'file in the include directory',
+    })
+    self._commit_git('repo_5', { # skia/src
+        'src_file': 'file in the src directory',
+    })
+
+    # Chrome repo.
+    self._commit_git('repo_2', {
+        'DEPS': self.DEPS_git_pre % {'git_base': self.git_base},
+        'myfile': 'svn/trunk/src@1'
+    })
+    self._commit_git('repo_2', {
+        'DEPS': self.DEPS_post % {'git_base': self.git_base},
+        'myfile': 'svn/trunk/src@2'
+    })
+
+
 class FakeReposTestBase(trial_dir.TestCase):
   """This is vaguely inspired by twisted."""
   # Static FakeRepos instances. Lazy loaded.
   CACHED_FAKE_REPOS = {}
   # Override if necessary.
   FAKE_REPOS_CLASS = FakeRepos
 
   def setUp(self):
     super(FakeReposTestBase, self).setUp()
     if not self.FAKE_REPOS_CLASS in self.CACHED_FAKE_REPOS:
@@ skipping 88 matching lines @@
     fake.set_up_git()
     print('Fake setup, press enter to quit or Ctrl-C to keep the checkouts.')
     sys.stdin.readline()
   except KeyboardInterrupt:
     trial_dir.TrialDir.SHOULD_LEAK.leak = True
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))