mirror of
https://gerrit.googlesource.com/git-repo
synced 2024-12-21 07:16:21 +00:00
09f0abb0ef
"repo init --reference" has two purposes: to decrease bandwidth used at clone time, and to decrease disk usage afterward, by using the reference repositories as an alternate store of objects even after the clone. The downside is that it makes the borrowing repositories dependent on the reference repositories, so it is easy to end up with missing objects by mistake after a cleanup operation like "git gc". To prevent that, v2.3.0-rc0~30^2 (clone: --dissociate option to mark that reference is only temporary, 2014-10-14), "git clone" gained a --dissociate option that makes --reference reuse objects from the reference repository at clone time but copy them over instead of using the reference as an alternate. This is more straightforward to use than plain --reference, at the cost of higher disk usage. Introduce a --dissociate to "repo init" that brings the same benefits to repo. The option is simply passed on to "git clone". Change-Id: Ib50a549eb71e0a2b3e234aea57537923962a80d4
435 lines
15 KiB
Python
435 lines
15 KiB
Python
#
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# Copyright (C) 2008 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import os
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import platform
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import re
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import sys
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from pyversion import is_python3
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if is_python3():
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import urllib.parse
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else:
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import imp
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import urlparse
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urllib = imp.new_module('urllib')
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urllib.parse = urlparse
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from color import Coloring
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from command import InteractiveCommand, MirrorSafeCommand
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from error import ManifestParseError
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from project import SyncBuffer
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from git_config import GitConfig
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from git_command import git_require, MIN_GIT_VERSION
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import platform_utils
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class Init(InteractiveCommand, MirrorSafeCommand):
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common = True
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helpSummary = "Initialize repo in the current directory"
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helpUsage = """
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%prog [options]
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"""
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helpDescription = """
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The '%prog' command is run once to install and initialize repo.
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The latest repo source code and manifest collection is downloaded
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from the server and is installed in the .repo/ directory in the
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current working directory.
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The optional -b argument can be used to select the manifest branch
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to checkout and use. If no branch is specified, master is assumed.
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The optional -m argument can be used to specify an alternate manifest
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to be used. If no manifest is specified, the manifest default.xml
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will be used.
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The --reference option can be used to point to a directory that
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has the content of a --mirror sync. This will make the working
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directory use as much data as possible from the local reference
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directory when fetching from the server. This will make the sync
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go a lot faster by reducing data traffic on the network.
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The --dissociate option can be used to borrow the objects from
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the directory specified with the --reference option only to reduce
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network transfer, and stop borrowing from them after a first clone
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is made by making necessary local copies of borrowed objects.
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The --no-clone-bundle option disables any attempt to use
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$URL/clone.bundle to bootstrap a new Git repository from a
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resumeable bundle file on a content delivery network. This
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may be necessary if there are problems with the local Python
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HTTP client or proxy configuration, but the Git binary works.
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# Switching Manifest Branches
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To switch to another manifest branch, `repo init -b otherbranch`
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may be used in an existing client. However, as this only updates the
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manifest, a subsequent `repo sync` (or `repo sync -d`) is necessary
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to update the working directory files.
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"""
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def _Options(self, p):
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# Logging
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g = p.add_option_group('Logging options')
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g.add_option('-q', '--quiet',
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dest="quiet", action="store_true", default=False,
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help="be quiet")
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# Manifest
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g = p.add_option_group('Manifest options')
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g.add_option('-u', '--manifest-url',
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dest='manifest_url',
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help='manifest repository location', metavar='URL')
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g.add_option('-b', '--manifest-branch',
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dest='manifest_branch',
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help='manifest branch or revision', metavar='REVISION')
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g.add_option('-c', '--current-branch',
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dest='current_branch_only', action='store_true',
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help='fetch only current manifest branch from server')
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g.add_option('-m', '--manifest-name',
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dest='manifest_name', default='default.xml',
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help='initial manifest file', metavar='NAME.xml')
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g.add_option('--mirror',
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dest='mirror', action='store_true',
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help='create a replica of the remote repositories '
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'rather than a client working directory')
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g.add_option('--reference',
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dest='reference',
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help='location of mirror directory', metavar='DIR')
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g.add_option('--dissociate',
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dest='dissociate', action='store_true',
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help='dissociate from reference mirrors after clone')
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g.add_option('--depth', type='int', default=None,
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dest='depth',
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help='create a shallow clone with given depth; see git clone')
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g.add_option('--archive',
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dest='archive', action='store_true',
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help='checkout an archive instead of a git repository for '
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'each project. See git archive.')
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g.add_option('--submodules',
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dest='submodules', action='store_true',
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help='sync any submodules associated with the manifest repo')
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g.add_option('-g', '--groups',
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dest='groups', default='default',
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help='restrict manifest projects to ones with specified '
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'group(s) [default|all|G1,G2,G3|G4,-G5,-G6]',
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metavar='GROUP')
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g.add_option('-p', '--platform',
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dest='platform', default='auto',
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help='restrict manifest projects to ones with a specified '
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'platform group [auto|all|none|linux|darwin|...]',
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metavar='PLATFORM')
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g.add_option('--no-clone-bundle',
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dest='no_clone_bundle', action='store_true',
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help='disable use of /clone.bundle on HTTP/HTTPS')
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g.add_option('--no-tags',
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dest='no_tags', action='store_true',
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help="don't fetch tags in the manifest")
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# Tool
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g = p.add_option_group('repo Version options')
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g.add_option('--repo-url',
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dest='repo_url',
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help='repo repository location', metavar='URL')
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g.add_option('--repo-branch',
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dest='repo_branch',
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help='repo branch or revision', metavar='REVISION')
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g.add_option('--no-repo-verify',
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dest='no_repo_verify', action='store_true',
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help='do not verify repo source code')
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# Other
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g = p.add_option_group('Other options')
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g.add_option('--config-name',
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dest='config_name', action="store_true", default=False,
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help='Always prompt for name/e-mail')
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def _RegisteredEnvironmentOptions(self):
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return {'REPO_MANIFEST_URL': 'manifest_url',
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'REPO_MIRROR_LOCATION': 'reference'}
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def _SyncManifest(self, opt):
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m = self.manifest.manifestProject
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is_new = not m.Exists
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if is_new:
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if not opt.manifest_url:
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print('fatal: manifest url (-u) is required.', file=sys.stderr)
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sys.exit(1)
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if not opt.quiet:
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print('Get %s' % GitConfig.ForUser().UrlInsteadOf(opt.manifest_url),
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file=sys.stderr)
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# The manifest project object doesn't keep track of the path on the
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# server where this git is located, so let's save that here.
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mirrored_manifest_git = None
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if opt.reference:
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manifest_git_path = urllib.parse.urlparse(opt.manifest_url).path[1:]
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mirrored_manifest_git = os.path.join(opt.reference, manifest_git_path)
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if not mirrored_manifest_git.endswith(".git"):
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mirrored_manifest_git += ".git"
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if not os.path.exists(mirrored_manifest_git):
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mirrored_manifest_git = os.path.join(opt.reference,
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'.repo/manifests.git')
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m._InitGitDir(mirror_git=mirrored_manifest_git)
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if opt.manifest_branch:
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m.revisionExpr = opt.manifest_branch
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else:
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m.revisionExpr = 'refs/heads/master'
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else:
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if opt.manifest_branch:
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m.revisionExpr = opt.manifest_branch
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else:
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m.PreSync()
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if opt.manifest_url:
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r = m.GetRemote(m.remote.name)
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r.url = opt.manifest_url
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r.ResetFetch()
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r.Save()
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groups = re.split(r'[,\s]+', opt.groups)
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all_platforms = ['linux', 'darwin', 'windows']
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platformize = lambda x: 'platform-' + x
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if opt.platform == 'auto':
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if (not opt.mirror and
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not m.config.GetString('repo.mirror') == 'true'):
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groups.append(platformize(platform.system().lower()))
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elif opt.platform == 'all':
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groups.extend(map(platformize, all_platforms))
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elif opt.platform in all_platforms:
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groups.append(platformize(opt.platform))
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elif opt.platform != 'none':
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print('fatal: invalid platform flag', file=sys.stderr)
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sys.exit(1)
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groups = [x for x in groups if x]
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groupstr = ','.join(groups)
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if opt.platform == 'auto' and groupstr == 'default,platform-' + platform.system().lower():
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groupstr = None
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m.config.SetString('manifest.groups', groupstr)
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if opt.reference:
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m.config.SetString('repo.reference', opt.reference)
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if opt.dissociate:
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m.config.SetString('repo.dissociate', 'true')
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if opt.archive:
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if is_new:
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m.config.SetString('repo.archive', 'true')
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else:
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print('fatal: --archive is only supported when initializing a new '
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'workspace.', file=sys.stderr)
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print('Either delete the .repo folder in this workspace, or initialize '
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'in another location.', file=sys.stderr)
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sys.exit(1)
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if opt.mirror:
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if is_new:
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m.config.SetString('repo.mirror', 'true')
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else:
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print('fatal: --mirror is only supported when initializing a new '
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'workspace.', file=sys.stderr)
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print('Either delete the .repo folder in this workspace, or initialize '
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'in another location.', file=sys.stderr)
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sys.exit(1)
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if opt.submodules:
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m.config.SetString('repo.submodules', 'true')
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if not m.Sync_NetworkHalf(is_new=is_new, quiet=opt.quiet,
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clone_bundle=not opt.no_clone_bundle,
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current_branch_only=opt.current_branch_only,
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no_tags=opt.no_tags, submodules=opt.submodules):
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r = m.GetRemote(m.remote.name)
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print('fatal: cannot obtain manifest %s' % r.url, file=sys.stderr)
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# Better delete the manifest git dir if we created it; otherwise next
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# time (when user fixes problems) we won't go through the "is_new" logic.
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if is_new:
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platform_utils.rmtree(m.gitdir)
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sys.exit(1)
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if opt.manifest_branch:
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m.MetaBranchSwitch(submodules=opt.submodules)
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syncbuf = SyncBuffer(m.config)
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m.Sync_LocalHalf(syncbuf, submodules=opt.submodules)
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syncbuf.Finish()
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if is_new or m.CurrentBranch is None:
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if not m.StartBranch('default'):
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print('fatal: cannot create default in manifest', file=sys.stderr)
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sys.exit(1)
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def _LinkManifest(self, name):
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if not name:
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print('fatal: manifest name (-m) is required.', file=sys.stderr)
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sys.exit(1)
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try:
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self.manifest.Link(name)
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except ManifestParseError as e:
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print("fatal: manifest '%s' not available" % name, file=sys.stderr)
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print('fatal: %s' % str(e), file=sys.stderr)
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sys.exit(1)
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def _Prompt(self, prompt, value):
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sys.stdout.write('%-10s [%s]: ' % (prompt, value))
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a = sys.stdin.readline().strip()
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if a == '':
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return value
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return a
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def _ShouldConfigureUser(self):
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gc = self.manifest.globalConfig
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mp = self.manifest.manifestProject
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# If we don't have local settings, get from global.
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if not mp.config.Has('user.name') or not mp.config.Has('user.email'):
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if not gc.Has('user.name') or not gc.Has('user.email'):
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return True
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mp.config.SetString('user.name', gc.GetString('user.name'))
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mp.config.SetString('user.email', gc.GetString('user.email'))
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print()
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print('Your identity is: %s <%s>' % (mp.config.GetString('user.name'),
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mp.config.GetString('user.email')))
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print('If you want to change this, please re-run \'repo init\' with --config-name')
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return False
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def _ConfigureUser(self):
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mp = self.manifest.manifestProject
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while True:
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print()
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name = self._Prompt('Your Name', mp.UserName)
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email = self._Prompt('Your Email', mp.UserEmail)
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print()
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print('Your identity is: %s <%s>' % (name, email))
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sys.stdout.write('is this correct [y/N]? ')
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a = sys.stdin.readline().strip().lower()
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if a in ('yes', 'y', 't', 'true'):
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break
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if name != mp.UserName:
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mp.config.SetString('user.name', name)
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if email != mp.UserEmail:
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mp.config.SetString('user.email', email)
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def _HasColorSet(self, gc):
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for n in ['ui', 'diff', 'status']:
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if gc.Has('color.%s' % n):
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return True
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return False
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def _ConfigureColor(self):
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gc = self.manifest.globalConfig
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if self._HasColorSet(gc):
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return
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class _Test(Coloring):
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def __init__(self):
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Coloring.__init__(self, gc, 'test color display')
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self._on = True
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out = _Test()
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print()
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print("Testing colorized output (for 'repo diff', 'repo status'):")
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for c in ['black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan']:
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out.write(' ')
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out.printer(fg=c)(' %-6s ', c)
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out.write(' ')
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out.printer(fg='white', bg='black')(' %s ' % 'white')
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out.nl()
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for c in ['bold', 'dim', 'ul', 'reverse']:
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out.write(' ')
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out.printer(fg='black', attr=c)(' %-6s ', c)
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out.nl()
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sys.stdout.write('Enable color display in this user account (y/N)? ')
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a = sys.stdin.readline().strip().lower()
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if a in ('y', 'yes', 't', 'true', 'on'):
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gc.SetString('color.ui', 'auto')
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def _ConfigureDepth(self, opt):
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"""Configure the depth we'll sync down.
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Args:
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opt: Options from optparse. We care about opt.depth.
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"""
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# Opt.depth will be non-None if user actually passed --depth to repo init.
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if opt.depth is not None:
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if opt.depth > 0:
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# Positive values will set the depth.
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depth = str(opt.depth)
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else:
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# Negative numbers will clear the depth; passing None to SetString
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# will do that.
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depth = None
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# We store the depth in the main manifest project.
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self.manifest.manifestProject.config.SetString('repo.depth', depth)
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def _DisplayResult(self):
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if self.manifest.IsMirror:
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init_type = 'mirror '
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else:
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init_type = ''
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print()
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print('repo %shas been initialized in %s'
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% (init_type, self.manifest.topdir))
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current_dir = os.getcwd()
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if current_dir != self.manifest.topdir:
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print('If this is not the directory in which you want to initialize '
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'repo, please run:')
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print(' rm -r %s/.repo' % self.manifest.topdir)
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print('and try again.')
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def Execute(self, opt, args):
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git_require(MIN_GIT_VERSION, fail=True)
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if opt.reference:
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opt.reference = os.path.expanduser(opt.reference)
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# Check this here, else manifest will be tagged "not new" and init won't be
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# possible anymore without removing the .repo/manifests directory.
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if opt.archive and opt.mirror:
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print('fatal: --mirror and --archive cannot be used together.',
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file=sys.stderr)
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sys.exit(1)
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self._SyncManifest(opt)
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self._LinkManifest(opt.manifest_name)
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if os.isatty(0) and os.isatty(1) and not self.manifest.IsMirror:
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if opt.config_name or self._ShouldConfigureUser():
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self._ConfigureUser()
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self._ConfigureColor()
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self._ConfigureDepth(opt)
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self._DisplayResult()
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