git-sync-deps tool

tools/grab_deps.py

Index: tools/grab_deps.py
diff --git a/tools/grab_deps.py b/tools/grab_deps.py
new file mode 100755
index 0000000000000000000000000000000000000000..3c9e19094f4036c8690da687353030a6121b9392
--- /dev/null
+++ b/tools/grab_deps.py
@@ -0,0 +1,62 @@
+#!/usr/bin/python
+# Copyright 2014 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import sys
+import os
+import subprocess
+import git_utils
+import subprocess
+import misc_utils
+
+from DEPS import deps
+
+
+def rm_directory_if_exists(directory):
+  if os.path.isdir(directory) and not os.path.islink(directory):
+    shutil.rmtree(directory)
+  elif os.path.lexists(directory):
+    os.remove(directory)
+
+
+def git_checkout_to_directory(repo, checkout, directory, verbose=False):
+  """TODO(halcanary): document this function.
+  """
+  git = git_utils.git_executable()
+  assert git
+  if not checkout:
+    checkout = 'origin/master'
+  try:
+    with misc_utils.ChangeDir(directory):
+      if verbose:
+        print '%s\n>>>> %s\n>>>> %s\n' % (directory, repo, checkout)
+      subprocess.check_call([git, 'fetch'])
+      subprocess.check_call([git, 'checkout', '--quiet', checkout])
+  except:
+    rm_directory_if_exists(directory)
+    subprocess.check_call([git, 'clone', repo, directory])
+    with misc_utils.ChangeDir(directory):
+      if verbose:
+        print '%s\n>>>> %s\n>>>> %s\n' % (directory, repo, checkout)
+      subprocess.check_call([git, 'checkout', '--quiet', checkout])
+
+
+def main(argv):
+  dependencies = deps["ALL"].copy()
+  for arg in argv:
+    if arg not in deps:
+      print arg, '?'
+      exit(1)
+    for dep in deps[arg]:
+      dependencies[dep] = deps[arg][dep]
+  for directory in dependencies:
+    repo, checkout = dependencies[directory]
+    git_checkout_to_directory(repo, checkout, directory, verbose=True)
+
+
+if __name__ == '__main__':
+  main(sys.argv[1:])
+