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Initial Contribution
This commit is contained in:
The Android Open Source Project
338
manifest.py
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338
manifest.py
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#
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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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import os
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import sys
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import xml.dom.minidom
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from editor import Editor
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from git_config import GitConfig, IsId
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from import_tar import ImportTar
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from import_zip import ImportZip
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from project import Project, MetaProject, R_TAGS
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from remote import Remote
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from error import ManifestParseError
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MANIFEST_FILE_NAME = 'manifest.xml'
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class _Default(object):
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"""Project defaults within the manifest."""
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revision = None
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remote = None
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class Manifest(object):
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"""manages the repo configuration file"""
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def __init__(self, repodir):
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self.repodir = os.path.abspath(repodir)
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self.topdir = os.path.dirname(self.repodir)
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self.manifestFile = os.path.join(self.repodir, MANIFEST_FILE_NAME)
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self.globalConfig = GitConfig.ForUser()
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Editor.globalConfig = self.globalConfig
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self.repoProject = MetaProject(self, 'repo',
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gitdir = os.path.join(repodir, 'repo/.git'),
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worktree = os.path.join(repodir, 'repo'))
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wt = os.path.join(repodir, 'manifests')
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gd_new = os.path.join(repodir, 'manifests.git')
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gd_old = os.path.join(wt, '.git')
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if os.path.exists(gd_new) or not os.path.exists(gd_old):
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gd = gd_new
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else:
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gd = gd_old
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self.manifestProject = MetaProject(self, 'manifests',
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gitdir = gd,
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worktree = wt)
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self._Unload()
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def Link(self, name):
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"""Update the repo metadata to use a different manifest.
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"""
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path = os.path.join(self.manifestProject.worktree, name)
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if not os.path.isfile(path):
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raise ManifestParseError('manifest %s not found' % name)
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old = self.manifestFile
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try:
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self.manifestFile = path
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self._Unload()
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self._Load()
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finally:
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self.manifestFile = old
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try:
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if os.path.exists(self.manifestFile):
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os.remove(self.manifestFile)
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os.symlink('manifests/%s' % name, self.manifestFile)
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except OSError, e:
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raise ManifestParseError('cannot link manifest %s' % name)
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@property
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def projects(self):
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self._Load()
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return self._projects
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@property
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def remotes(self):
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self._Load()
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return self._remotes
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@property
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def default(self):
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self._Load()
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return self._default
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def _Unload(self):
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self._loaded = False
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self._projects = {}
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self._remotes = {}
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self._default = None
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self.branch = None
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def _Load(self):
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if not self._loaded:
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self._ParseManifest()
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self._loaded = True
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def _ParseManifest(self):
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root = xml.dom.minidom.parse(self.manifestFile)
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if not root or not root.childNodes:
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raise ManifestParseError, \
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"no root node in %s" % \
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self.manifestFile
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config = root.childNodes[0]
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if config.nodeName != 'manifest':
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raise ManifestParseError, \
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"no <manifest> in %s" % \
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self.manifestFile
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self.branch = config.getAttribute('branch')
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if not self.branch:
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self.branch = 'default'
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for node in config.childNodes:
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if node.nodeName == 'remote':
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remote = self._ParseRemote(node)
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if self._remotes.get(remote.name):
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raise ManifestParseError, \
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'duplicate remote %s in %s' % \
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(remote.name, self.manifestFile)
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self._remotes[remote.name] = remote
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for node in config.childNodes:
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if node.nodeName == 'default':
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if self._default is not None:
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raise ManifestParseError, \
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'duplicate default in %s' % \
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(self.manifestFile)
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self._default = self._ParseDefault(node)
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if self._default is None:
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self._default = _Default()
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for node in config.childNodes:
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if node.nodeName == 'project':
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project = self._ParseProject(node)
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if self._projects.get(project.name):
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raise ManifestParseError, \
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'duplicate project %s in %s' % \
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(project.name, self.manifestFile)
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self._projects[project.name] = project
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def _ParseRemote(self, node):
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"""
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reads a <remote> element from the manifest file
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"""
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name = self._reqatt(node, 'name')
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fetch = self._reqatt(node, 'fetch')
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review = node.getAttribute('review')
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r = Remote(name=name,
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fetch=fetch,
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review=review)
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for n in node.childNodes:
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if n.nodeName == 'require':
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r.requiredCommits.append(self._reqatt(n, 'commit'))
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return r
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def _ParseDefault(self, node):
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"""
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reads a <default> element from the manifest file
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"""
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d = _Default()
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d.remote = self._get_remote(node)
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d.revision = node.getAttribute('revision')
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return d
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def _ParseProject(self, node):
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"""
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reads a <project> element from the manifest file
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"""
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name = self._reqatt(node, 'name')
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remote = self._get_remote(node)
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if remote is None:
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remote = self._default.remote
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if remote is None:
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raise ManifestParseError, \
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"no remote for project %s within %s" % \
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(name, self.manifestFile)
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revision = node.getAttribute('revision')
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if not revision:
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revision = self._default.revision
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if not revision:
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raise ManifestParseError, \
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"no revision for project %s within %s" % \
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(name, self.manifestFile)
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path = node.getAttribute('path')
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if not path:
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path = name
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if path.startswith('/'):
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raise ManifestParseError, \
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"project %s path cannot be absolute in %s" % \
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(name, self.manifestFile)
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worktree = os.path.join(self.topdir, path)
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gitdir = os.path.join(self.repodir, 'projects/%s.git' % path)
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project = Project(manifest = self,
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name = name,
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remote = remote,
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gitdir = gitdir,
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worktree = worktree,
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relpath = path,
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revision = revision)
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for n in node.childNodes:
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if n.nodeName == 'remote':
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r = self._ParseRemote(n)
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if project.extraRemotes.get(r.name) \
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or project.remote.name == r.name:
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raise ManifestParseError, \
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'duplicate remote %s in project %s in %s' % \
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(r.name, project.name, self.manifestFile)
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project.extraRemotes[r.name] = r
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elif n.nodeName == 'copyfile':
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self._ParseCopyFile(project, n)
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to_resolve = []
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by_version = {}
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for n in node.childNodes:
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if n.nodeName == 'import':
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self._ParseImport(project, n, to_resolve, by_version)
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for pair in to_resolve:
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sn, pr = pair
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try:
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sn.SetParent(by_version[pr].commit)
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except KeyError:
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raise ManifestParseError, \
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'snapshot %s not in project %s in %s' % \
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(pr, project.name, self.manifestFile)
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return project
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def _ParseImport(self, project, import_node, to_resolve, by_version):
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first_url = None
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for node in import_node.childNodes:
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if node.nodeName == 'mirror':
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first_url = self._reqatt(node, 'url')
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break
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if not first_url:
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raise ManifestParseError, \
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'mirror url required for project %s in %s' % \
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(project.name, self.manifestFile)
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imp = None
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for cls in [ImportTar, ImportZip]:
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if cls.CanAccept(first_url):
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imp = cls()
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break
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if not imp:
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raise ManifestParseError, \
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'snapshot %s unsupported for project %s in %s' % \
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(first_url, project.name, self.manifestFile)
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imp.SetProject(project)
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for node in import_node.childNodes:
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if node.nodeName == 'remap':
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old = node.getAttribute('strip')
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new = node.getAttribute('insert')
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imp.RemapPath(old, new)
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elif node.nodeName == 'mirror':
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imp.AddUrl(self._reqatt(node, 'url'))
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for node in import_node.childNodes:
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if node.nodeName == 'snapshot':
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sn = imp.Clone()
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sn.SetVersion(self._reqatt(node, 'version'))
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sn.SetCommit(node.getAttribute('check'))
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pr = node.getAttribute('prior')
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if pr:
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if IsId(pr):
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sn.SetParent(pr)
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else:
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to_resolve.append((sn, pr))
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rev = R_TAGS + sn.TagName
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if rev in project.snapshots:
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raise ManifestParseError, \
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'duplicate snapshot %s for project %s in %s' % \
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(sn.version, project.name, self.manifestFile)
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project.snapshots[rev] = sn
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by_version[sn.version] = sn
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def _ParseCopyFile(self, project, node):
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src = self._reqatt(node, 'src')
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dest = self._reqatt(node, 'dest')
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# src is project relative, and dest is relative to the top of the tree
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project.AddCopyFile(src, os.path.join(self.topdir, dest))
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def _get_remote(self, node):
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name = node.getAttribute('remote')
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if not name:
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return None
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v = self._remotes.get(name)
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if not v:
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raise ManifestParseError, \
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"remote %s not defined in %s" % \
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(name, self.manifestFile)
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return v
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def _reqatt(self, node, attname):
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"""
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reads a required attribute from the node.
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"""
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v = node.getAttribute(attname)
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if not v:
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raise ManifestParseError, \
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"no %s in <%s> within %s" % \
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(attname, node.nodeName, self.manifestFile)
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return v
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