This is an short replacement for gclient.
Makes use of our current DEPS file to allow for a smooth transition.
BUG=skia:291
NOTRY=true
R=borenet@google.com, tfarina@chromium.org, epoger@google.com, mtklein@google.com
Author: halcanary@google.com
Review URL: https://codereview.chromium.org/191133005
git-svn-id: http://skia.googlecode.com/svn/trunk@14227 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/git-sync-deps b/tools/git-sync-deps
new file mode 100755
index 0000000..7a305f4
--- /dev/null
+++ b/tools/git-sync-deps
@@ -0,0 +1,182 @@
+#!/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.
+
+
+"""Parse a DEPS file and git checkout all of the dependencies.
+
+Args:
+ An optional list of deps_os values.
+
+Environment Variables:
+ GIT_EXECUTABLE: path to "git" binary; if unset, will look for one of
+ ['git', 'git.exe', 'git.bat'] in your default path.
+
+ GIT_SYNC_DEPS_PATH: file to get the dependency list from; if unset,
+ will use the file ../DEPS relative to this script's directory.
+
+ GIT_SYNC_DEPS_QUIET: if set to non-empty string, suppress messages.
+
+Git Config:
+ To disable syncing of a single repository:
+ cd path/to/repository
+ git config sync-deps.disable true
+
+ To re-enable sync:
+ cd path/to/repository
+ git config --unset sync-deps.disable
+"""
+
+
+import os
+import subprocess
+import sys
+import threading
+
+from git_utils import git_executable
+
+
+DEFAULT_DEPS_PATH = os.path.normpath(
+ os.path.join(os.path.dirname(__file__), os.pardir, 'DEPS'))
+
+
+def usage(deps_file_path = None):
+ sys.stderr.write(
+ 'Usage: run to grab dependencies, with optional platform support:\n')
+ sys.stderr.write(' python %s' % __file__)
+ if deps_file_path:
+ for deps_os in parse_file_to_dict(deps_file_path)['deps_os']:
+ sys.stderr.write(' [%s]' % deps_os)
+ else:
+ sys.stderr.write(' [DEPS_OS...]')
+ sys.stderr.write('\n\n')
+ sys.stderr.write(__doc__)
+
+
+def git_repository_sync_is_disabled(git, directory):
+ try:
+ disable = subprocess.check_output(
+ [git, 'config', 'sync-deps.disable'], cwd=directory)
+ return disable.lower().strip() in ['true', '1', 'yes', 'on']
+ except subprocess.CalledProcessError:
+ return False
+
+
+def git_checkout_to_directory(git, repo, checkoutable, directory, verbose):
+ """Checkout (and clone if needed) a Git repository.
+
+ Args:
+ git (string) the git executable
+
+ repo (string) the location of the repository, suitable
+ for passing to `git clone`.
+
+ checkoutable (string) a tag, branch, or commit, suitable for
+ passing to `git checkout`
+
+ directory (string) the path into which the repository
+ should be checked out.
+
+ verbose (boolean)
+
+ Raises an exception if any calls to git fail.
+ """
+ if not os.path.isdir(directory):
+ subprocess.check_call(
+ [git, 'clone', '--quiet', repo, directory])
+
+ # Check to see if this repo is disabled. Quick return.
+ if git_repository_sync_is_disabled(git, directory):
+ sys.stdout.write('%s\n SYNC IS DISABLED.\n' % directory)
+ return
+
+ subprocess.check_call([git, 'fetch', '--quiet'], cwd=directory)
+
+ subprocess.check_call(
+ [git, 'checkout', '--quiet', checkoutable], cwd=directory)
+
+ if verbose:
+ sys.stdout.write('%s\n @ %s\n' % (directory, checkoutable)) # Success.
+
+
+def parse_file_to_dict(path):
+ dictionary = {}
+ execfile(path, dictionary)
+ return dictionary
+
+
+class DepsError(Exception):
+ """Raised if deps_os is a bad key.
+ """
+ pass
+
+
+def git_sync_deps(deps_file_path, deps_os_list, verbose):
+ """Grab dependencies, with optional platform support.
+
+ Args:
+ deps_file_path (string) Path to the DEPS file.
+
+ deps_os_list (list of strings) Can be empty list. List of
+ strings that should each be a key in the deps_os
+ dictionary in the DEPS file.
+
+ Raises DepsError exception and git Exceptions.
+ """
+ git = git_executable()
+ assert git
+
+ deps_file_directory = os.path.dirname(deps_file_path)
+ deps = parse_file_to_dict(deps_file_path)
+ dependencies = deps['deps'].copy()
+ for deps_os in deps_os_list:
+ # Add OS-specific dependencies
+ if deps_os not in deps['deps_os']:
+ raise DepsError(
+ 'Argument "%s" not found within deps_os keys %r' %
+ (deps_os, deps['deps_os'].keys()))
+ for dep in deps['deps_os'][deps_os]:
+ dependencies[dep] = deps['deps_os'][deps_os][dep]
+ list_of_arg_lists = []
+ for directory in dependencies:
+ if '@' in dependencies[directory]:
+ repo, checkoutable = dependencies[directory].split('@', 1)
+ else:
+ repo, checkoutable = dependencies[directory], 'origin/master'
+
+ relative_directory = os.path.join(deps_file_directory, directory)
+
+ list_of_arg_lists.append(
+ (git, repo, checkoutable, relative_directory, verbose))
+
+ multithread(git_checkout_to_directory, list_of_arg_lists)
+
+
+def multithread(function, list_of_arg_lists):
+ # for args in list_of_arg_lists:
+ # function(*args)
+ # return
+ threads = []
+ for args in list_of_arg_lists:
+ thread = threading.Thread(None, function, None, args)
+ thread.start()
+ threads.append(thread)
+ for thread in threads:
+ thread.join()
+
+
+def main(argv):
+ deps_file_path = os.environ.get('GIT_SYNC_DEPS_PATH', DEFAULT_DEPS_PATH)
+ verbose = not bool(os.environ.get('GIT_SYNC_DEPS_QUIET', False))
+ try:
+ git_sync_deps(deps_file_path, argv, verbose)
+ return 0
+ except DepsError:
+ usage(deps_file_path)
+ return 1
+
+
+if __name__ == '__main__':
+ exit(main(sys.argv[1:]))