repo: update to 2.0 launcher

This pulls the latest version from upstream. This drops the custom keys Chromium has been carrying. We switched our release signing over to the official key, so there's no need for ours anymore. The new version will attempt to use Python 3 if available and whine if it's not. It shouldn't cause errors, just new warnings, but it should help us track down old systems. Bug: https://crbug.com/gerrit/10418 Test: `repo sync` still works Change-Id: I915d0874a1642880831964f91c4632f9d17a1e4a Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2044341 Reviewed-by: Michael Mortensen <mmortensen@google.com> Commit-Queue: Mike Frysinger <vapier@chromium.org>
6 years ago · 64c5af3a71
parent 3b8094ac62
commit 64c5af3a71
1 changed files with 98 additions and 196 deletions
--- a/294
+++ b/294
@ -10,13 +10,93 @@ copy of repo in the checkout.

 from __future__ import print_function

+import os
+import platform
+import subprocess
+import sys
+
+
+def exec_command(cmd):
+  """Execute |cmd| or return None on failure."""
+  try:
+    if platform.system() == 'Windows':
+      ret = subprocess.call(cmd)
+      sys.exit(ret)
+    else:
+      os.execvp(cmd[0], cmd)
+  except:
+    pass
+
+
+def check_python_version():
+  """Make sure the active Python version is recent enough."""
+  def reexec(prog):
+    exec_command([prog] + sys.argv)
+
+  MIN_PYTHON_VERSION = (3, 6)
+
+  ver = sys.version_info
+  major = ver.major
+  minor = ver.minor
+
+  # Abort on very old Python 2 versions.
+  if (major, minor) < (2, 7):
+    print('repo: error: Your Python version is too old. '
+          'Please use Python {}.{} or newer instead.'.format(
+              *MIN_PYTHON_VERSION), file=sys.stderr)
+    sys.exit(1)
+
+  # Try to re-exec the version specific Python 3 if needed.
+  if (major, minor) < MIN_PYTHON_VERSION:
+    # Python makes releases ~once a year, so try our min version +10 to help
+    # bridge the gap.  This is the fallback anyways so perf isn't critical.
+    min_major, min_minor = MIN_PYTHON_VERSION
+    for inc in range(0, 10):
+      reexec('python{}.{}'.format(min_major, min_minor + inc))
+
+    # Try the generic Python 3 wrapper, but only if it's new enough.  We don't
+    # want to go from (still supported) Python 2.7 to (unsupported) Python 3.5.
+    try:
+      proc = subprocess.Popen(
+          ['python3', '-c', 'import sys; '
+           'print(sys.version_info.major, sys.version_info.minor)'],
+          stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+      (output, _) = proc.communicate()
+      python3_ver = tuple(int(x) for x in output.decode('utf-8').split())
+    except (OSError, subprocess.CalledProcessError):
+      python3_ver = None
+
+    # The python3 version looks like it's new enough, so give it a try.
+    if python3_ver and python3_ver >= MIN_PYTHON_VERSION:
+      reexec('python3')
+
+    # We're still here, so diagnose things for the user.
+    if major < 3:
+      print('repo: warning: Python 2 is no longer supported; '
+            'Please upgrade to Python {}.{}+.'.format(*MIN_PYTHON_VERSION),
+            file=sys.stderr)
+    else:
+      print('repo: error: Python 3 version is too old; '
+            'Please use Python {}.{} or newer.'.format(*MIN_PYTHON_VERSION),
+            file=sys.stderr)
+      sys.exit(1)
+
+
+if __name__ == '__main__':
+  # TODO(vapier): Enable this on Windows once we have Python 3 issues fixed.
+  if platform.system() != 'Windows':
+    check_python_version()
+
+
 # repo default configuration
 #
 import os
 REPO_URL = os.environ.get('REPO_URL', None)
 if not REPO_URL:
  REPO_URL = 'https://chromium.googlesource.com/external/repo'
-REPO_REV = 'stable'
+REPO_REV = os.environ.get('REPO_REV')
+if not REPO_REV:
+  REPO_REV = 'stable'

 # Copyright (C) 2008 Google Inc.
 #
@ -33,10 +113,10 @@ REPO_REV = 'stable'
 # limitations under the License.

 # increment this whenever we make important changes to this script
-VERSION = (1, 26)
+VERSION = (2, 0)

 # increment this if the MAINTAINER_KEYS block is modified
-KEYRING_VERSION = (1, 5)
+KEYRING_VERSION = (2, 0)

 # Each individual key entry is created by using:
 # gpg --armor --export keyid
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-Dn+mK+tV0egPsus0tnfmps6ONhvxfZtkRWsJkQ0EDh8SbIEnBd8zolXXJnDSTpjL
-n9Sf5d2wH3L2SI53vhMouSB1UmhPhwNq7sFeTvYJ1juqmVdN+eQj5OxSvhOceAE8
-cT2GjBrfkP6Gcw8fPESLqJLx6jpyPrHS/TK1GNCnGZihDsZRNIcfpS9T1LoFKuHn
-eRZoYnWnFIZVjD9OLmRq3I2RcktWHFpAjWE3naSybXhfL++mp04PQyV2CUFVF6zY
-2nPL/TtwSF0WmReP2qO7gsuEhR0BuPaXEC3dihTpMZ4hkbe3F+aJ7VEEU9dKDUM=
-=i88c
 -----END PGP PUBLIC KEY BLOCK-----
 """

 GIT = 'git'                      # our git command
-MIN_GIT_VERSION = (1, 7, 2)      # minimum supported git version
+MIN_GIT_VERSION = (2, 10, 2)     # minimum supported git version
 repodir = '.repo'                # name of repo's private directory
 S_repo = 'repo'                  # special repo repository
 S_manifests = 'manifests'        # special manifest repository
 REPO_MAIN = S_repo + '/main.py'  # main script
-MIN_PYTHON_VERSION = (2, 7)      # minimum supported python version
 GITC_CONFIG_FILE = '/gitc/.config'
 GITC_FS_ROOT_DIR = '/gitc/manifest-rw/'

@ -258,12 +178,9 @@ GITC_FS_ROOT_DIR = '/gitc/manifest-rw/'
 import collections
 import errno
 import optparse
-import platform
 import re
 import shutil
 import stat
-import subprocess
-import sys

 if sys.version_info[0] == 3:
  import urllib.request
@ -276,17 +193,6 @@ else:
  urllib.error = urllib2


-# Python version check
-ver = sys.version_info
-if (ver[0], ver[1]) < MIN_PYTHON_VERSION:
-  print('error: Python version {} unsupported.\n'
-        'Please use Python {}.{} instead.'.format(
-            sys.version.split(' ')[0],
-            MIN_PYTHON_VERSION[0],
-            MIN_PYTHON_VERSION[1],
-        ), file=sys.stderr)
-  sys.exit(1)
-
 home_dot_repo = os.path.expanduser('~/.repoconfig')
 gpg_dir = os.path.join(home_dot_repo, 'gnupg')

@ -362,10 +268,10 @@ group.add_option('--no-tags',
 group = init_optparse.add_option_group('repo Version options')
 group.add_option('--repo-url',
                 dest='repo_url',
-                 help='repo repository location', metavar='URL')
+                 help='repo repository location ($REPO_URL)', metavar='URL')
 group.add_option('--repo-branch',
                 dest='repo_branch',
-                 help='repo branch or revision', metavar='REVISION')
+                 help='repo branch or revision ($REPO_REV)', metavar='REVISION')
 group.add_option('--no-repo-verify',
                 dest='no_repo_verify', action='store_true',
                 help='do not verify repo source code')
@ -493,15 +399,18 @@ def _Init(args, gitc_init=False):

  _CheckGitVersion()
  try:
-    if NeedSetupGnuPG():
-      can_verify = SetupGnuPG(opt.quiet)
+    if opt.no_repo_verify:
+      do_verify = False
    else:
-      can_verify = True
+      if NeedSetupGnuPG():
+        do_verify = SetupGnuPG(opt.quiet)
+      else:
+        do_verify = True

    dst = os.path.abspath(os.path.join(repodir, S_repo))
    _Clone(url, dst, opt.quiet, not opt.no_clone_bundle)

-    if can_verify and not opt.no_repo_verify:
+    if do_verify:
      rev = _Verify(dst, branch, opt.quiet)
    else:
      rev = 'refs/remotes/origin/%s^0' % branch
@ -640,9 +549,8 @@ def SetupGnuPG(quiet):
    sys.exit(1)
  print()

-  fd = open(os.path.join(home_dot_repo, 'keyring-version'), 'w')
-  fd.write('.'.join(map(str, KEYRING_VERSION)) + '\n')
-  fd.close()
+  with open(os.path.join(home_dot_repo, 'keyring-version'), 'w') as fd:
+    fd.write('.'.join(map(str, KEYRING_VERSION)) + '\n')
  return True


@ -1051,15 +959,9 @@ def main(orig_args):
        '--']
  me.extend(orig_args)
  me.extend(extra_args)
-  try:
-    if platform.system() == "Windows":
-      sys.exit(subprocess.call(me))
-    else:
-      os.execv(sys.executable, me)
-  except OSError as e:
-    print("fatal: unable to start %s" % repo_main, file=sys.stderr)
-    print("fatal: %s" % e, file=sys.stderr)
-    sys.exit(148)
+  exec_command(me)
+  print("fatal: unable to start %s" % repo_main, file=sys.stderr)
+  sys.exit(148)


 if __name__ == '__main__':