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# -*- coding: utf-8 -*-
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# Copyright (C) 2014-2016 RhodeCode GmbH
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License, version 3
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# (only), as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# This program is dual-licensed. If you wish to learn more about the
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# RhodeCode Enterprise Edition, including its added features, Support services,
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# and proprietary license terms, please see https://rhodecode.com/licenses/
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"""
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Module holding everything related to vcs nodes, with vcs2 architecture.
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"""
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import stat
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from zope.cachedescriptors.property import Lazy as LazyProperty
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from rhodecode.lib.utils import safe_unicode, safe_str
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from rhodecode.lib.utils2 import md5
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from rhodecode.lib.vcs import path as vcspath
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from rhodecode.lib.vcs.backends.base import EmptyCommit, FILEMODE_DEFAULT
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from rhodecode.lib.vcs.conf.mtypes import get_mimetypes_db
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from rhodecode.lib.vcs.exceptions import NodeError, RemovedFileNodeError
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LARGEFILE_PREFIX = '.hglf'
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class NodeKind:
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SUBMODULE = -1
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DIR = 1
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FILE = 2
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LARGEFILE = 3
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class NodeState:
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ADDED = u'added'
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CHANGED = u'changed'
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NOT_CHANGED = u'not changed'
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REMOVED = u'removed'
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class NodeGeneratorBase(object):
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"""
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Base class for removed added and changed filenodes, it's a lazy generator
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class that will create filenodes only on iteration or call
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The len method doesn't need to create filenodes at all
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"""
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def __init__(self, current_paths, cs):
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self.cs = cs
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self.current_paths = current_paths
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def __call__(self):
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return [n for n in self]
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def __getslice__(self, i, j):
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for p in self.current_paths[i:j]:
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yield self.cs.get_node(p)
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def __len__(self):
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return len(self.current_paths)
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def __iter__(self):
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for p in self.current_paths:
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yield self.cs.get_node(p)
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class AddedFileNodesGenerator(NodeGeneratorBase):
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"""
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Class holding added files for current commit
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"""
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class ChangedFileNodesGenerator(NodeGeneratorBase):
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"""
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Class holding changed files for current commit
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"""
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class RemovedFileNodesGenerator(NodeGeneratorBase):
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"""
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Class holding removed files for current commit
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"""
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def __iter__(self):
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for p in self.current_paths:
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yield RemovedFileNode(path=p)
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def __getslice__(self, i, j):
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for p in self.current_paths[i:j]:
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yield RemovedFileNode(path=p)
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class Node(object):
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"""
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Simplest class representing file or directory on repository. SCM backends
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should use ``FileNode`` and ``DirNode`` subclasses rather than ``Node``
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directly.
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Node's ``path`` cannot start with slash as we operate on *relative* paths
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only. Moreover, every single node is identified by the ``path`` attribute,
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so it cannot end with slash, too. Otherwise, path could lead to mistakes.
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"""
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commit = None
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def __init__(self, path, kind):
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self._validate_path(path) # can throw exception if path is invalid
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self.path = safe_str(path.rstrip('/')) # we store paths as str
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if path == '' and kind != NodeKind.DIR:
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raise NodeError("Only DirNode and its subclasses may be "
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"initialized with empty path")
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self.kind = kind
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if self.is_root() and not self.is_dir():
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raise NodeError("Root node cannot be FILE kind")
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def _validate_path(self, path):
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if path.startswith('/'):
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raise NodeError(
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"Cannot initialize Node objects with slash at "
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"the beginning as only relative paths are supported. "
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"Got %s" % (path,))
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@LazyProperty
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def parent(self):
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parent_path = self.get_parent_path()
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if parent_path:
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if self.commit:
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return self.commit.get_node(parent_path)
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return DirNode(parent_path)
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return None
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@LazyProperty
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def unicode_path(self):
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return safe_unicode(self.path)
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@LazyProperty
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def dir_path(self):
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"""
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Returns name of the directory from full path of this vcs node. Empty
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string is returned if there's no directory in the path
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"""
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_parts = self.path.rstrip('/').rsplit('/', 1)
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if len(_parts) == 2:
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return safe_unicode(_parts[0])
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return u''
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@LazyProperty
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def name(self):
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"""
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Returns name of the node so if its path
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then only last part is returned.
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"""
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return safe_unicode(self.path.rstrip('/').split('/')[-1])
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@property
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def kind(self):
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return self._kind
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@kind.setter
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def kind(self, kind):
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if hasattr(self, '_kind'):
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raise NodeError("Cannot change node's kind")
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else:
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self._kind = kind
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# Post setter check (path's trailing slash)
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if self.path.endswith('/'):
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raise NodeError("Node's path cannot end with slash")
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def __cmp__(self, other):
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"""
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Comparator using name of the node, needed for quick list sorting.
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"""
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kind_cmp = cmp(self.kind, other.kind)
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if kind_cmp:
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return kind_cmp
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return cmp(self.name, other.name)
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def __eq__(self, other):
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for attr in ['name', 'path', 'kind']:
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if getattr(self, attr) != getattr(other, attr):
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return False
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if self.is_file():
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if self.content != other.content:
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return False
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else:
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# For DirNode's check without entering each dir
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self_nodes_paths = list(sorted(n.path for n in self.nodes))
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other_nodes_paths = list(sorted(n.path for n in self.nodes))
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if self_nodes_paths != other_nodes_paths:
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return False
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return True
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def __ne__(self, other):
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return not self.__eq__(other)
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def __repr__(self):
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return '<%s %r>' % (self.__class__.__name__, self.path)
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def __str__(self):
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return self.__repr__()
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def __unicode__(self):
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return self.name
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def get_parent_path(self):
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"""
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Returns node's parent path or empty string if node is root.
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"""
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if self.is_root():
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return ''
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return vcspath.dirname(self.path.rstrip('/')) + '/'
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def is_file(self):
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"""
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Returns ``True`` if node's kind is ``NodeKind.FILE``, ``False``
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otherwise.
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"""
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return self.kind == NodeKind.FILE
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def is_dir(self):
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"""
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Returns ``True`` if node's kind is ``NodeKind.DIR``, ``False``
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otherwise.
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"""
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return self.kind == NodeKind.DIR
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def is_root(self):
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"""
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Returns ``True`` if node is a root node and ``False`` otherwise.
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"""
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return self.kind == NodeKind.DIR and self.path == ''
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def is_submodule(self):
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"""
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Returns ``True`` if node's kind is ``NodeKind.SUBMODULE``, ``False``
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otherwise.
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"""
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return self.kind == NodeKind.SUBMODULE
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def is_largefile(self):
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"""
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Returns ``True`` if node's kind is ``NodeKind.LARGEFILE``, ``False``
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otherwise
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"""
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return self.kind == NodeKind.LARGEFILE
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def is_link(self):
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if self.commit:
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return self.commit.is_link(self.path)
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return False
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@LazyProperty
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def added(self):
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return self.state is NodeState.ADDED
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@LazyProperty
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def changed(self):
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return self.state is NodeState.CHANGED
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@LazyProperty
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def not_changed(self):
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return self.state is NodeState.NOT_CHANGED
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@LazyProperty
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def removed(self):
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return self.state is NodeState.REMOVED
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class FileNode(Node):
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"""
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Class representing file nodes.
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:attribute: path: path to the node, relative to repository's root
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:attribute: content: if given arbitrary sets content of the file
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:attribute: commit: if given, first time content is accessed, callback
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:attribute: mode: stat mode for a node. Default is `FILEMODE_DEFAULT`.
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"""
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def __init__(self, path, content=None, commit=None, mode=None):
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"""
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Only one of ``content`` and ``commit`` may be given. Passing both
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would raise ``NodeError`` exception.
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:param path: relative path to the node
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:param content: content may be passed to constructor
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:param commit: if given, will use it to lazily fetch content
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:param mode: ST_MODE (i.e. 0100644)
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"""
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if content and commit:
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raise NodeError("Cannot use both content and commit")
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super(FileNode, self).__init__(path, kind=NodeKind.FILE)
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self.commit = commit
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self._content = content
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self._mode = mode or FILEMODE_DEFAULT
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@LazyProperty
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def mode(self):
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"""
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Returns lazily mode of the FileNode. If `commit` is not set, would
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use value given at initialization or `FILEMODE_DEFAULT` (default).
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"""
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if self.commit:
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mode = self.commit.get_file_mode(self.path)
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else:
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mode = self._mode
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return mode
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@LazyProperty
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def raw_bytes(self):
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"""
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Returns lazily the raw bytes of the FileNode.
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"""
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if self.commit:
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if self._content is None:
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self._content = self.commit.get_file_content(self.path)
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content = self._content
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else:
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content = self._content
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return content
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@LazyProperty
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def md5(self):
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"""
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Returns md5 of the file node.
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"""
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return md5(self.raw_bytes)
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@LazyProperty
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def content(self):
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"""
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Returns lazily content of the FileNode. If possible, would try to
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decode content from UTF-8.
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"""
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content = self.raw_bytes
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if self.is_binary:
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return content
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return safe_unicode(content)
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@LazyProperty
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def size(self):
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if self.commit:
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return self.commit.get_file_size(self.path)
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raise NodeError(
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"Cannot retrieve size of the file without related "
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"commit attribute")
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@LazyProperty
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def message(self):
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if self.commit:
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return self.last_commit.message
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raise NodeError(
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"Cannot retrieve message of the file without related "
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"commit attribute")
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@LazyProperty
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def last_commit(self):
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if self.commit:
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pre_load = ["author", "date", "message"]
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return self.commit.get_file_commit(self.path, pre_load=pre_load)
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raise NodeError(
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"Cannot retrieve last commit of the file without "
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"related commit attribute")
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def get_mimetype(self):
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"""
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Mimetype is calculated based on the file's content. If ``_mimetype``
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attribute is available, it will be returned (backends which store
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mimetypes or can easily recognize them, should set this private
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attribute to indicate that type should *NOT* be calculated).
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"""
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if hasattr(self, '_mimetype'):
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if (isinstance(self._mimetype, (tuple, list,)) and
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len(self._mimetype) == 2):
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return self._mimetype
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else:
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raise NodeError('given _mimetype attribute must be an 2 '
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'element list or tuple')
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db = get_mimetypes_db()
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mtype, encoding = db.guess_type(self.name)
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if mtype is None:
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if self.is_binary:
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mtype = 'application/octet-stream'
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encoding = None
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else:
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mtype = 'text/plain'
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encoding = None
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# try with pygments
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try:
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from pygments.lexers import get_lexer_for_filename
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mt = get_lexer_for_filename(self.name).mimetypes
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except Exception:
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mt = None
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if mt:
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mtype = mt[0]
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return mtype, encoding
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@LazyProperty
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def mimetype(self):
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"""
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Wrapper around full mimetype info. It returns only type of fetched
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mimetype without the encoding part. use get_mimetype function to fetch
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full set of (type,encoding)
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"""
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return self.get_mimetype()[0]
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@LazyProperty
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def mimetype_main(self):
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return self.mimetype.split('/')[0]
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@LazyProperty
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def lexer(self):
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"""
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Returns pygment's lexer class. Would try to guess lexer taking file's
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content, name and mimetype.
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"""
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from pygments import lexers
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try:
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lexer = lexers.guess_lexer_for_filename(self.name, self.content, stripnl=False)
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except lexers.ClassNotFound:
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lexer = lexers.TextLexer(stripnl=False)
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# returns first alias
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return lexer
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@LazyProperty
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def lexer_alias(self):
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"""
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Returns first alias of the lexer guessed for this file.
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"""
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return self.lexer.aliases[0]
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@LazyProperty
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def history(self):
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"""
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Returns a list of commit for this file in which the file was changed
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"""
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if self.commit is None:
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raise NodeError('Unable to get commit for this FileNode')
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return self.commit.get_file_history(self.path)
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@LazyProperty
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def annotate(self):
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"""
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Returns a list of three element tuples with lineno, commit and line
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"""
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if self.commit is None:
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raise NodeError('Unable to get commit for this FileNode')
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pre_load = ["author", "date", "message"]
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return self.commit.get_file_annotate(self.path, pre_load=pre_load)
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@LazyProperty
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def state(self):
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if not self.commit:
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raise NodeError(
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"Cannot check state of the node if it's not "
|
|
|
"linked with commit")
|
|
|
elif self.path in (node.path for node in self.commit.added):
|
|
|
return NodeState.ADDED
|
|
|
elif self.path in (node.path for node in self.commit.changed):
|
|
|
return NodeState.CHANGED
|
|
|
else:
|
|
|
return NodeState.NOT_CHANGED
|
|
|
|
|
|
@LazyProperty
|
|
|
def is_binary(self):
|
|
|
"""
|
|
|
Returns True if file has binary content.
|
|
|
"""
|
|
|
_bin = self.raw_bytes and '\0' in self.raw_bytes
|
|
|
return _bin
|
|
|
|
|
|
@LazyProperty
|
|
|
def extension(self):
|
|
|
"""Returns filenode extension"""
|
|
|
return self.name.split('.')[-1]
|
|
|
|
|
|
@property
|
|
|
def is_executable(self):
|
|
|
"""
|
|
|
Returns ``True`` if file has executable flag turned on.
|
|
|
"""
|
|
|
return bool(self.mode & stat.S_IXUSR)
|
|
|
|
|
|
def get_largefile_node(self):
|
|
|
"""
|
|
|
Try to return a Mercurial FileNode from this node. It does internal
|
|
|
checks inside largefile store, if that file exist there it will
|
|
|
create special instance of LargeFileNode which can get content from
|
|
|
LF store.
|
|
|
"""
|
|
|
if self.commit and self.path.startswith(LARGEFILE_PREFIX):
|
|
|
largefile_path = self.path.split(LARGEFILE_PREFIX)[-1].lstrip('/')
|
|
|
return self.commit.get_largefile_node(largefile_path)
|
|
|
|
|
|
def lines(self, count_empty=False):
|
|
|
all_lines, empty_lines = 0, 0
|
|
|
|
|
|
if not self.is_binary:
|
|
|
content = self.content
|
|
|
if count_empty:
|
|
|
all_lines = 0
|
|
|
empty_lines = 0
|
|
|
for line in content.splitlines(True):
|
|
|
if line == '\n':
|
|
|
empty_lines += 1
|
|
|
all_lines += 1
|
|
|
|
|
|
return all_lines, all_lines - empty_lines
|
|
|
else:
|
|
|
# fast method
|
|
|
empty_lines = all_lines = content.count('\n')
|
|
|
if all_lines == 0 and content:
|
|
|
# one-line without a newline
|
|
|
empty_lines = all_lines = 1
|
|
|
|
|
|
return all_lines, empty_lines
|
|
|
|
|
|
def __repr__(self):
|
|
|
return '<%s %r @ %s>' % (self.__class__.__name__, self.path,
|
|
|
getattr(self.commit, 'short_id', ''))
|
|
|
|
|
|
|
|
|
class RemovedFileNode(FileNode):
|
|
|
"""
|
|
|
Dummy FileNode class - trying to access any public attribute except path,
|
|
|
name, kind or state (or methods/attributes checking those two) would raise
|
|
|
RemovedFileNodeError.
|
|
|
"""
|
|
|
ALLOWED_ATTRIBUTES = [
|
|
|
'name', 'path', 'state', 'is_root', 'is_file', 'is_dir', 'kind',
|
|
|
'added', 'changed', 'not_changed', 'removed'
|
|
|
]
|
|
|
|
|
|
def __init__(self, path):
|
|
|
"""
|
|
|
:param path: relative path to the node
|
|
|
"""
|
|
|
super(RemovedFileNode, self).__init__(path=path)
|
|
|
|
|
|
def __getattribute__(self, attr):
|
|
|
if attr.startswith('_') or attr in RemovedFileNode.ALLOWED_ATTRIBUTES:
|
|
|
return super(RemovedFileNode, self).__getattribute__(attr)
|
|
|
raise RemovedFileNodeError(
|
|
|
"Cannot access attribute %s on RemovedFileNode" % attr)
|
|
|
|
|
|
@LazyProperty
|
|
|
def state(self):
|
|
|
return NodeState.REMOVED
|
|
|
|
|
|
|
|
|
class DirNode(Node):
|
|
|
"""
|
|
|
DirNode stores list of files and directories within this node.
|
|
|
Nodes may be used standalone but within repository context they
|
|
|
lazily fetch data within same repositorty's commit.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, path, nodes=(), commit=None):
|
|
|
"""
|
|
|
Only one of ``nodes`` and ``commit`` may be given. Passing both
|
|
|
would raise ``NodeError`` exception.
|
|
|
|
|
|
:param path: relative path to the node
|
|
|
:param nodes: content may be passed to constructor
|
|
|
:param commit: if given, will use it to lazily fetch content
|
|
|
"""
|
|
|
if nodes and commit:
|
|
|
raise NodeError("Cannot use both nodes and commit")
|
|
|
super(DirNode, self).__init__(path, NodeKind.DIR)
|
|
|
self.commit = commit
|
|
|
self._nodes = nodes
|
|
|
|
|
|
@LazyProperty
|
|
|
def content(self):
|
|
|
raise NodeError(
|
|
|
"%s represents a dir and has no `content` attribute" % self)
|
|
|
|
|
|
@LazyProperty
|
|
|
def nodes(self):
|
|
|
if self.commit:
|
|
|
nodes = self.commit.get_nodes(self.path)
|
|
|
else:
|
|
|
nodes = self._nodes
|
|
|
self._nodes_dict = dict((node.path, node) for node in nodes)
|
|
|
return sorted(nodes)
|
|
|
|
|
|
@LazyProperty
|
|
|
def files(self):
|
|
|
return sorted((node for node in self.nodes if node.is_file()))
|
|
|
|
|
|
@LazyProperty
|
|
|
def dirs(self):
|
|
|
return sorted((node for node in self.nodes if node.is_dir()))
|
|
|
|
|
|
def __iter__(self):
|
|
|
for node in self.nodes:
|
|
|
yield node
|
|
|
|
|
|
def get_node(self, path):
|
|
|
"""
|
|
|
Returns node from within this particular ``DirNode``, so it is now
|
|
|
allowed to fetch, i.e. node located at 'docs/api/index.rst' from node
|
|
|
'docs'. In order to access deeper nodes one must fetch nodes between
|
|
|
them first - this would work::
|
|
|
|
|
|
docs = root.get_node('docs')
|
|
|
docs.get_node('api').get_node('index.rst')
|
|
|
|
|
|
:param: path - relative to the current node
|
|
|
|
|
|
.. note::
|
|
|
To access lazily (as in example above) node have to be initialized
|
|
|
with related commit object - without it node is out of
|
|
|
context and may know nothing about anything else than nearest
|
|
|
(located at same level) nodes.
|
|
|
"""
|
|
|
try:
|
|
|
path = path.rstrip('/')
|
|
|
if path == '':
|
|
|
raise NodeError("Cannot retrieve node without path")
|
|
|
self.nodes # access nodes first in order to set _nodes_dict
|
|
|
paths = path.split('/')
|
|
|
if len(paths) == 1:
|
|
|
if not self.is_root():
|
|
|
path = '/'.join((self.path, paths[0]))
|
|
|
else:
|
|
|
path = paths[0]
|
|
|
return self._nodes_dict[path]
|
|
|
elif len(paths) > 1:
|
|
|
if self.commit is None:
|
|
|
raise NodeError(
|
|
|
"Cannot access deeper nodes without commit")
|
|
|
else:
|
|
|
path1, path2 = paths[0], '/'.join(paths[1:])
|
|
|
return self.get_node(path1).get_node(path2)
|
|
|
else:
|
|
|
raise KeyError
|
|
|
except KeyError:
|
|
|
raise NodeError("Node does not exist at %s" % path)
|
|
|
|
|
|
@LazyProperty
|
|
|
def state(self):
|
|
|
raise NodeError("Cannot access state of DirNode")
|
|
|
|
|
|
@LazyProperty
|
|
|
def size(self):
|
|
|
size = 0
|
|
|
for root, dirs, files in self.commit.walk(self.path):
|
|
|
for f in files:
|
|
|
size += f.size
|
|
|
|
|
|
return size
|
|
|
|
|
|
def __repr__(self):
|
|
|
return '<%s %r @ %s>' % (self.__class__.__name__, self.path,
|
|
|
getattr(self.commit, 'short_id', ''))
|
|
|
|
|
|
|
|
|
class RootNode(DirNode):
|
|
|
"""
|
|
|
DirNode being the root node of the repository.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, nodes=(), commit=None):
|
|
|
super(RootNode, self).__init__(path='', nodes=nodes, commit=commit)
|
|
|
|
|
|
def __repr__(self):
|
|
|
return '<%s>' % self.__class__.__name__
|
|
|
|
|
|
|
|
|
class SubModuleNode(Node):
|
|
|
"""
|
|
|
represents a SubModule of Git or SubRepo of Mercurial
|
|
|
"""
|
|
|
is_binary = False
|
|
|
size = 0
|
|
|
|
|
|
def __init__(self, name, url=None, commit=None, alias=None):
|
|
|
self.path = name
|
|
|
self.kind = NodeKind.SUBMODULE
|
|
|
self.alias = alias
|
|
|
|
|
|
# we have to use EmptyCommit here since this can point to svn/git/hg
|
|
|
# submodules we cannot get from repository
|
|
|
self.commit = EmptyCommit(str(commit), alias=alias)
|
|
|
self.url = url or self._extract_submodule_url()
|
|
|
|
|
|
def __repr__(self):
|
|
|
return '<%s %r @ %s>' % (self.__class__.__name__, self.path,
|
|
|
getattr(self.commit, 'short_id', ''))
|
|
|
|
|
|
def _extract_submodule_url(self):
|
|
|
# TODO: find a way to parse gits submodule file and extract the
|
|
|
# linking URL
|
|
|
return self.path
|
|
|
|
|
|
@LazyProperty
|
|
|
def name(self):
|
|
|
"""
|
|
|
Returns name of the node so if its path
|
|
|
then only last part is returned.
|
|
|
"""
|
|
|
org = safe_unicode(self.path.rstrip('/').split('/')[-1])
|
|
|
return u'%s @ %s' % (org, self.commit.short_id)
|
|
|
|
|
|
|
|
|
class LargeFileNode(FileNode):
|
|
|
|
|
|
def _validate_path(self, path):
|
|
|
"""
|
|
|
we override check since the LargeFileNode path is system absolute
|
|
|
"""
|
|
|
|
|
|
def raw_bytes(self):
|
|
|
if self.commit:
|
|
|
with open(self.path, 'rb') as f:
|
|
|
content = f.read()
|
|
|
else:
|
|
|
content = self._content
|
|
|
return content
|
