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# Copyright (C) 2014-2023 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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GIT commit module
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"""
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import io
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import stat
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import configparser
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from itertools import chain
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from zope.cachedescriptors.property import Lazy as LazyProperty
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from rhodecode.lib.datelib import utcdate_fromtimestamp
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from rhodecode.lib.str_utils import safe_bytes, safe_str
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from rhodecode.lib.vcs.backends import base
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from rhodecode.lib.vcs.exceptions import CommitError, NodeDoesNotExistError
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from rhodecode.lib.vcs.nodes import (
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FileNode, DirNode, NodeKind, RootNode, SubModuleNode,
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ChangedFileNodesGenerator, AddedFileNodesGenerator,
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RemovedFileNodesGenerator, LargeFileNode)
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class GitCommit(base.BaseCommit):
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"""
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Represents state of the repository at single commit id.
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"""
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_filter_pre_load = [
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# done through a more complex tree walk on parents
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"affected_files",
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# done through subprocess not remote call
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"children",
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# done through a more complex tree walk on parents
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"status",
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# mercurial specific property not supported here
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"_file_paths",
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# mercurial specific property not supported here
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'obsolete',
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# mercurial specific property not supported here
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'phase',
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# mercurial specific property not supported here
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'hidden'
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]
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def __init__(self, repository, raw_id, idx, pre_load=None):
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self.repository = repository
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self._remote = repository._remote
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# TODO: johbo: Tweak of raw_id should not be necessary
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self.raw_id = safe_str(raw_id)
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self.idx = idx
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self._set_bulk_properties(pre_load)
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# caches
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self._stat_modes = {} # stat info for paths
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self._paths = {} # path processed with parse_tree
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self.nodes = {}
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self._submodules = None
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def _set_bulk_properties(self, pre_load):
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if not pre_load:
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return
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pre_load = [entry for entry in pre_load
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if entry not in self._filter_pre_load]
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if not pre_load:
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return
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result = self._remote.bulk_request(self.raw_id, pre_load)
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for attr, value in result.items():
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if attr in ["author", "message"]:
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if value:
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value = safe_str(value)
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elif attr == "date":
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value = utcdate_fromtimestamp(*value)
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elif attr == "parents":
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value = self._make_commits(value)
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elif attr == "branch":
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value = self._set_branch(value)
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self.__dict__[attr] = value
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@LazyProperty
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def _commit(self):
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return self._remote[self.raw_id]
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@LazyProperty
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def _tree_id(self):
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return self._remote[self._commit['tree']]['id']
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@LazyProperty
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def id(self):
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return self.raw_id
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@LazyProperty
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def short_id(self):
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return self.raw_id[:12]
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@LazyProperty
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def message(self):
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return safe_str(self._remote.message(self.id))
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@LazyProperty
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def committer(self):
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return safe_str(self._remote.author(self.id))
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@LazyProperty
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def author(self):
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return safe_str(self._remote.author(self.id))
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@LazyProperty
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def date(self):
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unix_ts, tz = self._remote.date(self.raw_id)
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return utcdate_fromtimestamp(unix_ts, tz)
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@LazyProperty
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def status(self):
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"""
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Returns modified, added, removed, deleted files for current commit
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"""
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return self.changed, self.added, self.removed
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@LazyProperty
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def tags(self):
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tags = [safe_str(name) for name,
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commit_id in self.repository.tags.items()
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if commit_id == self.raw_id]
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return tags
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@LazyProperty
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def commit_branches(self):
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branches = []
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for name, commit_id in self.repository.branches.items():
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if commit_id == self.raw_id:
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branches.append(name)
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return branches
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def _set_branch(self, branches):
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if branches:
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# actually commit can have multiple branches in git
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return safe_str(branches[0])
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@LazyProperty
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def branch(self):
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branches = self._remote.branch(self.raw_id)
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return self._set_branch(branches)
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def _get_tree_id_for_path(self, path):
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path = safe_str(path)
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if path in self._paths:
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return self._paths[path]
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tree_id = self._tree_id
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path = path.strip('/')
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if path == '':
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data = [tree_id, "tree"]
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self._paths[''] = data
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return data
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tree_id, tree_type, tree_mode = \
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self._remote.tree_and_type_for_path(self.raw_id, path)
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if tree_id is None:
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raise self.no_node_at_path(path)
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self._paths[path] = [tree_id, tree_type]
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self._stat_modes[path] = tree_mode
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if path not in self._paths:
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raise self.no_node_at_path(path)
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return self._paths[path]
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def _get_kind(self, path):
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tree_id, type_ = self._get_tree_id_for_path(path)
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if type_ == 'blob':
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return NodeKind.FILE
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elif type_ == 'tree':
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return NodeKind.DIR
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elif type_ == 'link':
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return NodeKind.SUBMODULE
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return None
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def _assert_is_path(self, path):
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path = self._fix_path(path)
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if self._get_kind(path) != NodeKind.FILE:
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raise CommitError(f"File does not exist for commit {self.raw_id} at '{path}'")
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return path
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def _get_file_nodes(self):
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return chain(*(t[2] for t in self.walk()))
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@LazyProperty
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def parents(self):
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"""
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Returns list of parent commits.
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"""
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parent_ids = self._remote.parents(self.id)
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return self._make_commits(parent_ids)
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@LazyProperty
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def children(self):
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"""
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Returns list of child commits.
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"""
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children = self._remote.children(self.raw_id)
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return self._make_commits(children)
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def _make_commits(self, commit_ids):
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def commit_maker(_commit_id):
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return self.repository.get_commit(commit_id=_commit_id)
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return [commit_maker(commit_id) for commit_id in commit_ids]
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def get_file_mode(self, path: bytes):
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"""
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Returns stat mode of the file at the given `path`.
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"""
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path = self._assert_is_path(path)
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# ensure path is traversed
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self._get_tree_id_for_path(path)
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return self._stat_modes[path]
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def is_link(self, path):
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return stat.S_ISLNK(self.get_file_mode(path))
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def is_node_binary(self, path):
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tree_id, _ = self._get_tree_id_for_path(path)
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return self._remote.is_binary(tree_id)
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def node_md5_hash(self, path):
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path = self._assert_is_path(path)
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return self._remote.md5_hash(self.raw_id, path)
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def get_file_content(self, path):
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"""
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Returns content of the file at given `path`.
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"""
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tree_id, _ = self._get_tree_id_for_path(path)
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return self._remote.blob_as_pretty_string(tree_id)
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def get_file_content_streamed(self, path):
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tree_id, _ = self._get_tree_id_for_path(path)
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stream_method = getattr(self._remote, 'stream:blob_as_pretty_string')
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return stream_method(tree_id)
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def get_file_size(self, path):
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"""
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Returns size of the file at given `path`.
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"""
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tree_id, _ = self._get_tree_id_for_path(path)
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return self._remote.blob_raw_length(tree_id)
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def get_path_history(self, path, limit=None, pre_load=None):
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"""
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Returns history of file as reversed list of `GitCommit` objects for
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which file at given `path` has been modified.
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"""
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path = self._assert_is_path(path)
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hist = self._remote.node_history(self.raw_id, path, limit)
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return [
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self.repository.get_commit(commit_id=commit_id, pre_load=pre_load)
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for commit_id in hist]
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def get_file_annotate(self, path, pre_load=None):
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"""
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Returns a generator of four element tuples with
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lineno, commit_id, commit lazy loader and line
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"""
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result = self._remote.node_annotate(self.raw_id, path)
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for ln_no, commit_id, content in result:
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yield (
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ln_no, commit_id,
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lambda: self.repository.get_commit(commit_id=commit_id, pre_load=pre_load),
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content)
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def get_nodes(self, path, pre_load=None):
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if self._get_kind(path) != NodeKind.DIR:
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raise CommitError(
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f"Directory does not exist for commit {self.raw_id} at '{path}'")
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path = self._fix_path(path)
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tree_id, _ = self._get_tree_id_for_path(path)
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dirnodes = []
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filenodes = []
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# extracted tree ID gives us our files...
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str_path = safe_str(path) # libgit operates on bytes
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for name, stat_, id_, type_ in self._remote.tree_items(tree_id):
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if type_ == 'link':
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url = self._get_submodule_url('/'.join((str_path, name)))
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dirnodes.append(SubModuleNode(
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name, url=url, commit=id_, alias=self.repository.alias))
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continue
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if str_path != '':
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obj_path = '/'.join((str_path, name))
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else:
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obj_path = name
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if obj_path not in self._stat_modes:
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self._stat_modes[obj_path] = stat_
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if type_ == 'tree':
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dirnodes.append(DirNode(safe_bytes(obj_path), commit=self))
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elif type_ == 'blob':
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filenodes.append(FileNode(safe_bytes(obj_path), commit=self, mode=stat_, pre_load=pre_load))
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else:
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raise CommitError(f"Requested object should be Tree or Blob, is {type_}")
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nodes = dirnodes + filenodes
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for node in nodes:
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if node.path not in self.nodes:
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self.nodes[node.path] = node
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nodes.sort()
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return nodes
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def get_node(self, path, pre_load=None):
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path = self._fix_path(path)
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if path not in self.nodes:
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try:
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tree_id, type_ = self._get_tree_id_for_path(path)
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except CommitError:
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raise NodeDoesNotExistError(
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f"Cannot find one of parents' directories for a given "
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f"path: {path}")
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if type_ in ['link', 'commit']:
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url = self._get_submodule_url(path)
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node = SubModuleNode(path, url=url, commit=tree_id,
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alias=self.repository.alias)
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elif type_ == 'tree':
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if path == '':
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node = RootNode(commit=self)
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else:
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node = DirNode(safe_bytes(path), commit=self)
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elif type_ == 'blob':
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node = FileNode(safe_bytes(path), commit=self, pre_load=pre_load)
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self._stat_modes[path] = node.mode
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else:
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raise self.no_node_at_path(path)
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# cache node
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self.nodes[path] = node
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return self.nodes[path]
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def get_largefile_node(self, path):
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tree_id, _ = self._get_tree_id_for_path(path)
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pointer_spec = self._remote.is_large_file(tree_id)
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if pointer_spec:
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# content of that file regular FileNode is the hash of largefile
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file_id = pointer_spec.get('oid_hash')
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if self._remote.in_largefiles_store(file_id):
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lf_path = self._remote.store_path(file_id)
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return LargeFileNode(safe_bytes(lf_path), commit=self, org_path=path)
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@LazyProperty
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def affected_files(self):
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"""
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Gets a fast accessible file changes for given commit
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"""
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added, modified, deleted = self._changes_cache
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return list(added.union(modified).union(deleted))
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@LazyProperty
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def _changes_cache(self):
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added = set()
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modified = set()
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deleted = set()
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parents = self.parents
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if not self.parents:
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parents = [base.EmptyCommit()]
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for parent in parents:
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if isinstance(parent, base.EmptyCommit):
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oid = None
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else:
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oid = parent.raw_id
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_added, _modified, _deleted = self._remote.tree_changes(oid, self.raw_id)
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added = added | set(_added)
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modified = modified | set(_modified)
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deleted = deleted | set(_deleted)
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return added, modified, deleted
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def _get_paths_for_status(self, status):
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"""
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Returns sorted list of paths for given ``status``.
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:param status: one of: *added*, *modified* or *deleted*
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"""
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added, modified, deleted = self._changes_cache
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return sorted({
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'added': list(added),
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'modified': list(modified),
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'deleted': list(deleted)}[status]
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)
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@LazyProperty
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def added(self):
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"""
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Returns list of added ``FileNode`` objects.
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"""
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if not self.parents:
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return list(self._get_file_nodes())
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return AddedFileNodesGenerator(self.added_paths, self)
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@LazyProperty
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def added_paths(self):
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return [n for n in self._get_paths_for_status('added')]
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@LazyProperty
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def changed(self):
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"""
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Returns list of modified ``FileNode`` objects.
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"""
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if not self.parents:
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return []
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return ChangedFileNodesGenerator(self.changed_paths, self)
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@LazyProperty
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def changed_paths(self):
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return [n for n in self._get_paths_for_status('modified')]
|
|
|
|
|
|
@LazyProperty
|
|
|
def removed(self):
|
|
|
"""
|
|
|
Returns list of removed ``FileNode`` objects.
|
|
|
"""
|
|
|
if not self.parents:
|
|
|
return []
|
|
|
return RemovedFileNodesGenerator(self.removed_paths, self)
|
|
|
|
|
|
@LazyProperty
|
|
|
def removed_paths(self):
|
|
|
return [n for n in self._get_paths_for_status('deleted')]
|
|
|
|
|
|
def _get_submodule_url(self, submodule_path):
|
|
|
git_modules_path = '.gitmodules'
|
|
|
|
|
|
if self._submodules is None:
|
|
|
self._submodules = {}
|
|
|
|
|
|
try:
|
|
|
submodules_node = self.get_node(git_modules_path)
|
|
|
except NodeDoesNotExistError:
|
|
|
return None
|
|
|
|
|
|
parser = configparser.RawConfigParser()
|
|
|
parser.read_file(io.StringIO(submodules_node.str_content))
|
|
|
|
|
|
for section in parser.sections():
|
|
|
path = parser.get(section, 'path')
|
|
|
url = parser.get(section, 'url')
|
|
|
if path and url:
|
|
|
self._submodules[path.strip('/')] = url
|
|
|
|
|
|
return self._submodules.get(submodule_path.strip('/'))
|
|
|
|
