Revert of Cross-repo recipe package system.

scripts/slave/recipes.py

-#!/usr/bin/env python
-
-# Copyright 2015 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.
-
-"""Bootstrap script to clone and forward to the recipe engine tool."""
-
-import ast
-import logging
-import os
-import random
-import re
-import subprocess
-import sys
-import time
-import traceback
-
-BOOTSTRAP_VERSION = 1
-RECIPES_CFG = os.path.join(
-    os.pardir, os.pardir, 'infra', 'config', 'recipes.cfg')
-
-
-def parse_protobuf(fh):
-  """Parse the protobuf text format just well enough to understand recipes.cfg.
-
-  We don't use the protobuf library because we want to be as self-contained
-  as possible in this bootstrap, so it can be simply vendored into a client
-  repo.
-
-  We assume all fields are repeated since we don't have a proto spec to work
-  with.
-
-  Args:
-    fh: a filehandle containing the text format protobuf.
-  Returns:
-    A recursive dictionary of lists.
-  """
-  def parse_atom(text):
-    if text == 'true': return True
-    if text == 'false': return False
-    return ast.literal_eval(text)
-
-  ret = {}
-  for line in fh:
-    line = line.strip()
-    m = re.match(r'(\w+)\s*:\s*(.*)', line)
-    if m:
-      ret.setdefault(m.group(1), []).append(parse_atom(m.group(2)))
-      continue
-
-    m = re.match(r'(\w+)\s*{', line)
-    if m:
-      subparse = parse_protobuf(fh)
-      ret.setdefault(m.group(1), []).append(subparse)
-      continue
-
-    if line == '}': return ret
-    if line == '': continue
-
-    raise Exception('Could not understand line: <%s>' % line)
-
-  return ret
-
-
-def get_unique(things):
-  if len(things) == 1:
-    return things[0]
-  elif len(things) == 0:
-    raise ValueError("Expected to get one thing, but dinna get none.")
-  else:
-    logging.warn('Expected to get one thing, but got a bunch: %s\n%s' %
-                 (things, traceback.format_stack()))
-    return things[0]
-
-
-def main():
-  if sys.platform.startswith(('win', 'cygwin')):
-    git = 'git.bat'
-  else:
-    git = 'git'
-
-  # Find the repository and config file to operate on.
-  git_dir = os.path.dirname(
-    subprocess.check_output([git, 'rev-parse', '--git-dir'],
-    cwd=os.path.dirname(__file__)).strip())
-  recipes_cfg_path = os.path.join(os.path.dirname(__file__), RECIPES_CFG)
-
-  with open(recipes_cfg_path, 'rU') as fh:
-    protobuf = parse_protobuf(fh)
-
-  engine_buf = get_unique([
-      b for b in protobuf['deps'] if b.get('project_id') == ['recipe_engine'] ])
-  engine_url = get_unique(engine_buf['url'])
-  engine_revision = get_unique(engine_buf['revision'])
-  engine_subpath = (get_unique(engine_buf.get('path_override', ['']))
-                    .replace('/', os.path.sep))
-
-  recipes_path = os.path.join(git_dir,
-      get_unique(protobuf['recipes_path']).replace('/', os.path.sep))
-  deps_path = os.path.join(recipes_path, '.recipe_deps')
-  engine_path = os.path.join(deps_path, 'recipe_engine')
-
-  # Ensure that we have the recipe engine cloned.
-  def ensure_engine():
-    if not os.path.exists(deps_path):
-      os.makedirs(deps_path)
-    if not os.path.exists(engine_path):
-      subprocess.check_call([git, 'clone', engine_url, engine_path])
-
-    needs_fetch = subprocess.call(
-        [git, 'rev-parse', '--verify', '%s^{commit}' % engine_revision],
-        cwd=engine_path, stdout=open(os.devnull, 'w'))
-    if needs_fetch:
-      subprocess.check_call([git, 'fetch'], cwd=engine_path)
-    subprocess.check_call(
-        [git, 'checkout', '--quiet', engine_revision], cwd=engine_path)
-
-  try:
-    ensure_engine()
-  except subprocess.CalledProcessError as e:
-    if e.returncode == 128:  # Thrown when git gets a lock error.
-      time.sleep(random.uniform(2,5))
-      ensure_engine()
-    else:
-      raise
-
-  args = ['--package', recipes_cfg_path,
-          '--bootstrap-script', __file__] + sys.argv[1:]
-  return subprocess.call([
-      sys.executable, '-u',
-      os.path.join(engine_path, engine_subpath, 'recipes.py')] + args)
-
-if __name__ == '__main__':
-  sys.exit(main())