# RhodeCode VCSServer provides access to different vcs backends via network. # Copyright (C) 2014-2023 RhodeCode GmbH # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import collections import logging import os import re import stat import traceback import urllib.request import urllib.parse import urllib.error from functools import wraps import more_itertools import pygit2 from pygit2 import Repository as LibGit2Repo from pygit2 import index as LibGit2Index from dulwich import index, objects from dulwich.client import HttpGitClient, LocalGitClient, FetchPackResult from dulwich.errors import ( NotGitRepository, ChecksumMismatch, WrongObjectException, MissingCommitError, ObjectMissing, HangupException, UnexpectedCommandError) from dulwich.repo import Repo as DulwichRepo import rhodecode from vcsserver import exceptions, settings, subprocessio from vcsserver.lib.str_utils import safe_str, safe_int, safe_bytes, ascii_bytes, convert_to_str, splitnewlines from vcsserver.base import RepoFactory, obfuscate_qs, ArchiveNode, store_archive_in_cache, BytesEnvelope, BinaryEnvelope from vcsserver.hgcompat import ( hg_url as url_parser, httpbasicauthhandler, httpdigestauthhandler) from vcsserver.git_lfs.lib import LFSOidStore from vcsserver.vcs_base import RemoteBase DIR_STAT = stat.S_IFDIR FILE_MODE = stat.S_IFMT GIT_LINK = objects.S_IFGITLINK PEELED_REF_MARKER = b'^{}' HEAD_MARKER = b'HEAD' log = logging.getLogger(__name__) def reraise_safe_exceptions(func): """Converts Dulwich exceptions to something neutral.""" @wraps(func) def wrapper(*args, **kwargs): try: return func(*args, **kwargs) except (ChecksumMismatch, WrongObjectException, MissingCommitError, ObjectMissing,) as e: exc = exceptions.LookupException(org_exc=e) raise exc(safe_str(e)) except (HangupException, UnexpectedCommandError) as e: exc = exceptions.VcsException(org_exc=e) raise exc(safe_str(e)) except Exception: # NOTE(marcink): because of how dulwich handles some exceptions # (KeyError on empty repos), we cannot track this and catch all # exceptions, it's an exceptions from other handlers #if not hasattr(e, '_vcs_kind'): #log.exception("Unhandled exception in git remote call") #raise_from_original(exceptions.UnhandledException) raise return wrapper class Repo(DulwichRepo): """ A wrapper for dulwich Repo class. Since dulwich is sometimes keeping .idx file descriptors open, it leads to "Too many open files" error. We need to close all opened file descriptors once the repo object is destroyed. """ def __del__(self): if hasattr(self, 'object_store'): self.close() class Repository(LibGit2Repo): def __enter__(self): return self def __exit__(self, exc_type, exc_val, exc_tb): self.free() class GitFactory(RepoFactory): repo_type = 'git' def _create_repo(self, wire, create, use_libgit2=False): if use_libgit2: repo = Repository(safe_bytes(wire['path'])) else: # dulwich mode repo_path = safe_str(wire['path'], to_encoding=settings.WIRE_ENCODING) repo = Repo(repo_path) log.debug('repository created: got GIT object: %s', repo) return repo def repo(self, wire, create=False, use_libgit2=False): """ Get a repository instance for the given path. """ return self._create_repo(wire, create, use_libgit2) def repo_libgit2(self, wire): return self.repo(wire, use_libgit2=True) def create_signature_from_string(author_str, **kwargs): """ Creates a pygit2.Signature object from a string of the format 'Name '. :param author_str: String of the format 'Name ' :return: pygit2.Signature object """ match = re.match(r'^(.+) <(.+)>$', author_str) if match is None: raise ValueError(f"Invalid format: {author_str}") name, email = match.groups() return pygit2.Signature(name, email, **kwargs) def get_obfuscated_url(url_obj): url_obj.passwd = b'*****' if url_obj.passwd else url_obj.passwd url_obj.query = obfuscate_qs(url_obj.query) obfuscated_uri = str(url_obj) return obfuscated_uri class GitRemote(RemoteBase): def __init__(self, factory): self._factory = factory self._bulk_methods = { "date": self.date, "author": self.author, "branch": self.branch, "message": self.message, "parents": self.parents, "_commit": self.revision, } self._bulk_file_methods = { "size": self.get_node_size, "data": self.get_node_data, "flags": self.get_node_flags, "is_binary": self.get_node_is_binary, "md5": self.md5_hash } def _wire_to_config(self, wire): if 'config' in wire: return {x[0] + '_' + x[1]: x[2] for x in wire['config']} return {} def _remote_conf(self, config): params = [ '-c', 'core.askpass=""', ] config_attrs = { 'vcs_ssl_dir': 'http.sslCAinfo={}', 'vcs_git_lfs_store_location': 'lfs.storage={}' } for key, param in config_attrs.items(): if value := config.get(key): params.extend(['-c', param.format(value)]) return params @reraise_safe_exceptions def discover_git_version(self): stdout, _ = self.run_git_command( {}, ['--version'], _bare=True, _safe=True) prefix = b'git version' if stdout.startswith(prefix): stdout = stdout[len(prefix):] return safe_str(stdout.strip()) @reraise_safe_exceptions def is_empty(self, wire): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: try: has_head = repo.head.name if has_head: return False # NOTE(marcink): check again using more expensive method return repo.is_empty except Exception: pass return True @reraise_safe_exceptions def assert_correct_path(self, wire): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _assert_correct_path(_context_uid, _repo_id, fast_check): if fast_check: path = safe_str(wire['path']) if pygit2.discover_repository(path): return True return False else: try: repo_init = self._factory.repo_libgit2(wire) with repo_init: pass except pygit2.GitError: path = wire.get('path') tb = traceback.format_exc() log.debug("Invalid Git path `%s`, tb: %s", path, tb) return False return True return _assert_correct_path(context_uid, repo_id, True) @reraise_safe_exceptions def bare(self, wire): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: return repo.is_bare @reraise_safe_exceptions def get_node_data(self, wire, commit_id, path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] blob_obj = commit.tree[path] if blob_obj.type != pygit2.GIT_OBJ_BLOB: raise exceptions.LookupException()( f'Tree for commit_id:{commit_id} is not a blob: {blob_obj.type_str}') return BytesEnvelope(blob_obj.data) @reraise_safe_exceptions def get_node_size(self, wire, commit_id, path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] blob_obj = commit.tree[path] if blob_obj.type != pygit2.GIT_OBJ_BLOB: raise exceptions.LookupException()( f'Tree for commit_id:{commit_id} is not a blob: {blob_obj.type_str}') return blob_obj.size @reraise_safe_exceptions def get_node_flags(self, wire, commit_id, path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] blob_obj = commit.tree[path] if blob_obj.type != pygit2.GIT_OBJ_BLOB: raise exceptions.LookupException()( f'Tree for commit_id:{commit_id} is not a blob: {blob_obj.type_str}') return blob_obj.filemode @reraise_safe_exceptions def get_node_is_binary(self, wire, commit_id, path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] blob_obj = commit.tree[path] if blob_obj.type != pygit2.GIT_OBJ_BLOB: raise exceptions.LookupException()( f'Tree for commit_id:{commit_id} is not a blob: {blob_obj.type_str}') return blob_obj.is_binary @reraise_safe_exceptions def blob_as_pretty_string(self, wire, sha): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: blob_obj = repo[sha] return BytesEnvelope(blob_obj.data) @reraise_safe_exceptions def blob_raw_length(self, wire, sha): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _blob_raw_length(_repo_id, _sha): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: blob = repo[sha] return blob.size return _blob_raw_length(repo_id, sha) def _parse_lfs_pointer(self, raw_content): spec_string = b'version https://git-lfs.github.com/spec' if raw_content and raw_content.startswith(spec_string): pattern = re.compile(rb""" (?:\n)? ^version[ ]https://git-lfs\.github\.com/spec/(?Pv\d+)\n ^oid[ ] sha256:(?P[0-9a-f]{64})\n ^size[ ](?P[0-9]+)\n (?:\n)? """, re.VERBOSE | re.MULTILINE) match = pattern.match(raw_content) if match: return match.groupdict() return {} @reraise_safe_exceptions def is_large_file(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _is_large_file(_repo_id, _sha): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: blob = repo[commit_id] if blob.is_binary: return {} return self._parse_lfs_pointer(blob.data) return _is_large_file(repo_id, commit_id) @reraise_safe_exceptions def is_binary(self, wire, tree_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _is_binary(_repo_id, _tree_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: blob_obj = repo[tree_id] return blob_obj.is_binary return _is_binary(repo_id, tree_id) @reraise_safe_exceptions def md5_hash(self, wire, commit_id, path): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _md5_hash(_repo_id, _commit_id, _path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[_commit_id] blob_obj = commit.tree[_path] if blob_obj.type != pygit2.GIT_OBJ_BLOB: raise exceptions.LookupException()( f'Tree for commit_id:{_commit_id} is not a blob: {blob_obj.type_str}') return '' return _md5_hash(repo_id, commit_id, path) @reraise_safe_exceptions def in_largefiles_store(self, wire, oid): conf = self._wire_to_config(wire) repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: repo_name = repo.path store_location = conf.get('vcs_git_lfs_store_location') if store_location: store = LFSOidStore( oid=oid, repo=repo_name, store_location=store_location) return store.has_oid() return False @reraise_safe_exceptions def store_path(self, wire, oid): conf = self._wire_to_config(wire) repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: repo_name = repo.path store_location = conf.get('vcs_git_lfs_store_location') if store_location: store = LFSOidStore( oid=oid, repo=repo_name, store_location=store_location) return store.oid_path raise ValueError(f'Unable to fetch oid with path {oid}') @reraise_safe_exceptions def bulk_request(self, wire, rev, pre_load): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _bulk_request(_repo_id, _rev, _pre_load): result = {} for attr in pre_load: try: method = self._bulk_methods[attr] wire.update({'cache': False}) # disable cache for bulk calls so we don't double cache args = [wire, rev] result[attr] = method(*args) except KeyError as e: raise exceptions.VcsException(e)(f"Unknown bulk attribute: {attr}") return result return _bulk_request(repo_id, rev, sorted(pre_load)) @reraise_safe_exceptions def bulk_file_request(self, wire, commit_id, path, pre_load): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _bulk_file_request(_repo_id, _commit_id, _path, _pre_load): result = {} for attr in pre_load: try: method = self._bulk_file_methods[attr] wire.update({'cache': False}) # disable cache for bulk calls so we don't double cache result[attr] = method(wire, _commit_id, _path) except KeyError as e: raise exceptions.VcsException(e)(f'Unknown bulk attribute: "{attr}"') return result return BinaryEnvelope(_bulk_file_request(repo_id, commit_id, path, sorted(pre_load))) def _build_opener(self, url: str): handlers = [] url_obj = url_parser(safe_bytes(url)) authinfo = url_obj.authinfo()[1] if authinfo: # create a password manager passmgr = urllib.request.HTTPPasswordMgrWithDefaultRealm() passmgr.add_password(*convert_to_str(authinfo)) handlers.extend((httpbasicauthhandler(passmgr), httpdigestauthhandler(passmgr))) return urllib.request.build_opener(*handlers) @reraise_safe_exceptions def check_url(self, url, config): url_obj = url_parser(safe_bytes(url)) test_uri = safe_str(url_obj.authinfo()[0]) obfuscated_uri = get_obfuscated_url(url_obj) log.info("Checking URL for remote cloning/import: %s", obfuscated_uri) if not test_uri.endswith('info/refs'): test_uri = test_uri.rstrip('/') + '/info/refs' o = self._build_opener(url=url) o.addheaders = [('User-Agent', 'git/1.7.8.0')] # fake some git q = {"service": 'git-upload-pack'} qs = f'?{urllib.parse.urlencode(q)}' cu = f"{test_uri}{qs}" try: req = urllib.request.Request(cu, None, {}) log.debug("Trying to open URL %s", obfuscated_uri) resp = o.open(req) if resp.code != 200: raise exceptions.URLError()('Return Code is not 200') except Exception as e: log.warning("URL cannot be opened: %s", obfuscated_uri, exc_info=True) # means it cannot be cloned raise exceptions.URLError(e)(f"[{obfuscated_uri}] org_exc: {e}") # now detect if it's proper git repo gitdata: bytes = resp.read() if b'service=git-upload-pack' in gitdata: pass elif re.findall(br'[0-9a-fA-F]{40}\s+refs', gitdata): # old style git can return some other format! pass else: e = None raise exceptions.URLError(e)( f"url [{obfuscated_uri}] does not look like an hg repo org_exc: {e}") return True @reraise_safe_exceptions def clone(self, wire, url, deferred, valid_refs, update_after_clone): # TODO(marcink): deprecate this method. Last i checked we don't use it anymore remote_refs = self.pull(wire, url, apply_refs=False) repo = self._factory.repo(wire) if isinstance(valid_refs, list): valid_refs = tuple(valid_refs) for k in remote_refs: # only parse heads/tags and skip so called deferred tags if k.startswith(valid_refs) and not k.endswith(deferred): repo[k] = remote_refs[k] if update_after_clone: # we want to checkout HEAD repo["HEAD"] = remote_refs["HEAD"] index.build_index_from_tree(repo.path, repo.index_path(), repo.object_store, repo["HEAD"].tree) @reraise_safe_exceptions def branch(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _branch(_context_uid, _repo_id, _commit_id): regex = re.compile('^refs/heads') def filter_with(ref): return regex.match(ref[0]) and ref[1] == _commit_id branches = list(filter(filter_with, list(self.get_refs(wire).items()))) return [x[0].split('refs/heads/')[-1] for x in branches] return _branch(context_uid, repo_id, commit_id) @reraise_safe_exceptions def delete_branch(self, wire, branch_name): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: if branch := repo.lookup_branch(branch_name): branch.delete() @reraise_safe_exceptions def commit_branches(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _commit_branches(_context_uid, _repo_id, _commit_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: branches = [x for x in repo.branches.with_commit(_commit_id)] return branches return _commit_branches(context_uid, repo_id, commit_id) @reraise_safe_exceptions def add_object(self, wire, content): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: blob = objects.Blob() blob.set_raw_string(content) repo.object_store.add_object(blob) return blob.id @reraise_safe_exceptions def create_commit(self, wire, author, committer, message, branch, new_tree_id, date_args: list[int, int] = None, parents: list | None = None): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: if date_args: current_time, offset = date_args kw = { 'time': current_time, 'offset': offset } author = create_signature_from_string(author, **kw) committer = create_signature_from_string(committer, **kw) tree = new_tree_id if isinstance(tree, (bytes, str)): # validate this tree is in the repo... tree = repo[safe_str(tree)].id if parents: # run via sha's and validate them in repo parents = [repo[c].id for c in parents] else: parents = [] # ensure we COMMIT on top of given branch head # check if this repo has ANY branches, otherwise it's a new branch case we need to make if branch in repo.branches.local: parents += [repo.branches[branch].target] elif [x for x in repo.branches.local]: parents += [repo.head.target] #else: # in case we want to commit on new branch we create it on top of HEAD #repo.branches.local.create(branch, repo.revparse_single('HEAD')) # # Create a new commit commit_oid = repo.create_commit( f'refs/heads/{branch}', # the name of the reference to update author, # the author of the commit committer, # the committer of the commit message, # the commit message tree, # the tree produced by the index parents # list of parents for the new commit, usually just one, ) new_commit_id = safe_str(commit_oid) return new_commit_id @reraise_safe_exceptions def commit(self, wire, commit_data, branch, commit_tree, updated, removed): def mode2pygit(mode): """ git only supports two filemode 644 and 755 0o100755 -> 33261 0o100644 -> 33188 """ return { 0o100644: pygit2.GIT_FILEMODE_BLOB, 0o100755: pygit2.GIT_FILEMODE_BLOB_EXECUTABLE, 0o120000: pygit2.GIT_FILEMODE_LINK }.get(mode) or pygit2.GIT_FILEMODE_BLOB repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: repo_index = repo.index commit_parents = None if commit_tree and commit_data['parents']: commit_parents = commit_data['parents'] parent_commit = repo[commit_parents[0]] repo_index.read_tree(parent_commit.tree) for pathspec in updated: blob_id = repo.create_blob(pathspec['content']) ie = pygit2.IndexEntry(pathspec['path'], blob_id, mode2pygit(pathspec['mode'])) repo_index.add(ie) for pathspec in removed: repo_index.remove(pathspec) # Write changes to the index repo_index.write() # Create a tree from the updated index written_commit_tree = repo_index.write_tree() new_tree_id = written_commit_tree author = commit_data['author'] committer = commit_data['committer'] message = commit_data['message'] date_args = [int(commit_data['commit_time']), int(commit_data['commit_timezone'])] new_commit_id = self.create_commit(wire, author, committer, message, branch, new_tree_id, date_args=date_args, parents=commit_parents) # libgit2, ensure the branch is there and exists self.create_branch(wire, branch, new_commit_id) # libgit2, set new ref to this created commit self.set_refs(wire, f'refs/heads/{branch}', new_commit_id) return new_commit_id @reraise_safe_exceptions def pull(self, wire, url, apply_refs=True, refs=None, update_after=False): if url != 'default' and '://' not in url: client = LocalGitClient(url) else: url_obj = url_parser(safe_bytes(url)) o = self._build_opener(url) url = url_obj.authinfo()[0] client = HttpGitClient(base_url=url, opener=o) repo = self._factory.repo(wire) determine_wants = repo.object_store.determine_wants_all if refs: refs: list[bytes] = [ascii_bytes(x) for x in refs] def determine_wants_requested(_remote_refs): determined = [] for ref_name, ref_hash in _remote_refs.items(): bytes_ref_name = safe_bytes(ref_name) if bytes_ref_name in refs: bytes_ref_hash = safe_bytes(ref_hash) determined.append(bytes_ref_hash) return determined # swap with our custom requested wants determine_wants = determine_wants_requested try: remote_refs = client.fetch( path=url, target=repo, determine_wants=determine_wants) except NotGitRepository as e: log.warning( 'Trying to fetch from "%s" failed, not a Git repository.', url) # Exception can contain unicode which we convert raise exceptions.AbortException(e)(repr(e)) # mikhail: client.fetch() returns all the remote refs, but fetches only # refs filtered by `determine_wants` function. We need to filter result # as well if refs: remote_refs = {k: remote_refs[k] for k in remote_refs if k in refs} if apply_refs: # TODO: johbo: Needs proper test coverage with a git repository # that contains a tag object, so that we would end up with # a peeled ref at this point. for k in remote_refs: if k.endswith(PEELED_REF_MARKER): log.debug("Skipping peeled reference %s", k) continue repo[k] = remote_refs[k] if refs and not update_after: # update to ref # mikhail: explicitly set the head to the last ref. update_to_ref = refs[-1] if isinstance(update_after, str): update_to_ref = update_after repo[HEAD_MARKER] = remote_refs[update_to_ref] if update_after: # we want to check out HEAD repo[HEAD_MARKER] = remote_refs[HEAD_MARKER] index.build_index_from_tree(repo.path, repo.index_path(), repo.object_store, repo[HEAD_MARKER].tree) if isinstance(remote_refs, FetchPackResult): return remote_refs.refs return remote_refs @reraise_safe_exceptions def sync_fetch(self, wire, url, refs=None, all_refs=False, **kwargs): self._factory.repo(wire) if refs and not isinstance(refs, (list, tuple)): refs = [refs] config = self._wire_to_config(wire) # get all remote refs we'll use to fetch later cmd = ['ls-remote'] if not all_refs: cmd += ['--heads', '--tags'] cmd += [url] output, __ = self.run_git_command( wire, cmd, fail_on_stderr=False, _copts=self._remote_conf(config), extra_env={'GIT_TERMINAL_PROMPT': '0'}) remote_refs = collections.OrderedDict() fetch_refs = [] for ref_line in output.splitlines(): sha, ref = ref_line.split(b'\t') sha = sha.strip() if ref in remote_refs: # duplicate, skip continue if ref.endswith(PEELED_REF_MARKER): log.debug("Skipping peeled reference %s", ref) continue # don't sync HEAD if ref in [HEAD_MARKER]: continue remote_refs[ref] = sha if refs and sha in refs: # we filter fetch using our specified refs fetch_refs.append(f'{safe_str(ref)}:{safe_str(ref)}') elif not refs: fetch_refs.append(f'{safe_str(ref)}:{safe_str(ref)}') log.debug('Finished obtaining fetch refs, total: %s', len(fetch_refs)) if fetch_refs: for chunk in more_itertools.chunked(fetch_refs, 128): fetch_refs_chunks = list(chunk) log.debug('Fetching %s refs from import url', len(fetch_refs_chunks)) self.run_git_command( wire, ['fetch', url, '--force', '--prune', '--'] + fetch_refs_chunks, fail_on_stderr=False, _copts=self._remote_conf(config), extra_env={'GIT_TERMINAL_PROMPT': '0'}) if kwargs.get('sync_large_objects'): self.run_git_command( wire, ['lfs', 'fetch', url, '--all'], fail_on_stderr=False, _copts=self._remote_conf(config), ) return remote_refs @reraise_safe_exceptions def sync_push(self, wire, url, refs=None, **kwargs): if not self.check_url(url, wire): return config = self._wire_to_config(wire) self._factory.repo(wire) self.run_git_command( wire, ['push', url, '--mirror'], fail_on_stderr=False, _copts=self._remote_conf(config), extra_env={'GIT_TERMINAL_PROMPT': '0'}) if kwargs.get('sync_large_objects'): self.run_git_command( wire, ['lfs', 'push', url, '--all'], fail_on_stderr=False, _copts=self._remote_conf(config), ) @reraise_safe_exceptions def get_remote_refs(self, wire, url): repo = Repo(url) return repo.get_refs() @reraise_safe_exceptions def get_description(self, wire): repo = self._factory.repo(wire) return repo.get_description() @reraise_safe_exceptions def get_missing_revs(self, wire, rev1, rev2, other_repo_path): origin_repo_path = wire['path'] repo = self._factory.repo(wire) # fetch from other_repo_path to our origin repo LocalGitClient(thin_packs=False).fetch(other_repo_path, repo) wire_remote = wire.copy() wire_remote['path'] = other_repo_path repo_remote = self._factory.repo(wire_remote) # fetch from origin_repo_path to our remote repo LocalGitClient(thin_packs=False).fetch(origin_repo_path, repo_remote) revs = [ x.commit.id for x in repo_remote.get_walker(include=[safe_bytes(rev2)], exclude=[safe_bytes(rev1)])] return revs @reraise_safe_exceptions def get_object(self, wire, sha, maybe_unreachable=False): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _get_object(_context_uid, _repo_id, _sha): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: missing_commit_err = 'Commit {} does not exist for `{}`'.format(sha, wire['path']) try: commit = repo.revparse_single(sha) except KeyError: # NOTE(marcink): KeyError doesn't give us any meaningful information # here, we instead give something more explicit e = exceptions.RefNotFoundException('SHA: %s not found', sha) raise exceptions.LookupException(e)(missing_commit_err) except ValueError as e: raise exceptions.LookupException(e)(missing_commit_err) is_tag = False if isinstance(commit, pygit2.Tag): commit = repo.get(commit.target) is_tag = True check_dangling = True if is_tag: check_dangling = False if check_dangling and maybe_unreachable: check_dangling = False # we used a reference and it parsed means we're not having a dangling commit if sha != commit.hex: check_dangling = False if check_dangling: # check for dangling commit for branch in repo.branches.with_commit(commit.hex): if branch: break else: # NOTE(marcink): Empty error doesn't give us any meaningful information # here, we instead give something more explicit e = exceptions.RefNotFoundException('SHA: %s not found in branches', sha) raise exceptions.LookupException(e)(missing_commit_err) commit_id = commit.hex type_str = commit.type_str return { 'id': commit_id, 'type': type_str, 'commit_id': commit_id, 'idx': 0 } return _get_object(context_uid, repo_id, sha) @reraise_safe_exceptions def get_refs(self, wire): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _get_refs(_context_uid, _repo_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: regex = re.compile('^refs/(heads|tags)/') return {x.name: x.target.hex for x in [ref for ref in repo.listall_reference_objects() if regex.match(ref.name)]} return _get_refs(context_uid, repo_id) @reraise_safe_exceptions def get_branch_pointers(self, wire): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _get_branch_pointers(_context_uid, _repo_id): repo_init = self._factory.repo_libgit2(wire) regex = re.compile('^refs/heads') with repo_init as repo: branches = [ref for ref in repo.listall_reference_objects() if regex.match(ref.name)] return {x.target.hex: x.shorthand for x in branches} return _get_branch_pointers(context_uid, repo_id) @reraise_safe_exceptions def head(self, wire, show_exc=True): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _head(_context_uid, _repo_id, _show_exc): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: try: return repo.head.peel().hex except Exception: if show_exc: raise return _head(context_uid, repo_id, show_exc) @reraise_safe_exceptions def init(self, wire): repo_path = safe_str(wire['path']) os.makedirs(repo_path, mode=0o755) pygit2.init_repository(repo_path, bare=False) @reraise_safe_exceptions def init_bare(self, wire): repo_path = safe_str(wire['path']) os.makedirs(repo_path, mode=0o755) pygit2.init_repository(repo_path, bare=True) @reraise_safe_exceptions def revision(self, wire, rev): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _revision(_context_uid, _repo_id, _rev): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[rev] obj_data = { 'id': commit.id.hex, } # tree objects itself don't have tree_id attribute if hasattr(commit, 'tree_id'): obj_data['tree'] = commit.tree_id.hex return obj_data return _revision(context_uid, repo_id, rev) @reraise_safe_exceptions def date(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _date(_repo_id, _commit_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] if hasattr(commit, 'commit_time'): commit_time, commit_time_offset = commit.commit_time, commit.commit_time_offset else: commit = commit.get_object() commit_time, commit_time_offset = commit.commit_time, commit.commit_time_offset # TODO(marcink): check dulwich difference of offset vs timezone return [commit_time, commit_time_offset] return _date(repo_id, commit_id) @reraise_safe_exceptions def author(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _author(_repo_id, _commit_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] if hasattr(commit, 'author'): author = commit.author else: author = commit.get_object().author if author.email: return f"{author.name} <{author.email}>" try: return f"{author.name}" except Exception: return f"{safe_str(author.raw_name)}" return _author(repo_id, commit_id) @reraise_safe_exceptions def message(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _message(_repo_id, _commit_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] return commit.message return _message(repo_id, commit_id) @reraise_safe_exceptions def parents(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _parents(_repo_id, _commit_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] if hasattr(commit, 'parent_ids'): parent_ids = commit.parent_ids else: parent_ids = commit.get_object().parent_ids return [x.hex for x in parent_ids] return _parents(repo_id, commit_id) @reraise_safe_exceptions def children(self, wire, commit_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) head = self.head(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _children(_repo_id, _commit_id): output, __ = self.run_git_command( wire, ['rev-list', '--all', '--children', f'{commit_id}^..{head}']) child_ids = [] pat = re.compile(fr'^{commit_id}') for line in output.splitlines(): line = safe_str(line) if pat.match(line): found_ids = line.split(' ')[1:] child_ids.extend(found_ids) break return child_ids return _children(repo_id, commit_id) @reraise_safe_exceptions def set_refs(self, wire, key, value): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: repo.references.create(key, value, force=True) @reraise_safe_exceptions def update_refs(self, wire, key, value): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: if key not in repo.references: raise ValueError(f'Reference {key} not found in the repository') repo.references.create(key, value, force=True) @reraise_safe_exceptions def create_branch(self, wire, branch_name, commit_id, force=False): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: if commit_id: commit = repo[commit_id] else: # if commit is not given just use the HEAD commit = repo.head() if force: repo.branches.local.create(branch_name, commit, force=force) elif not repo.branches.get(branch_name): # create only if that branch isn't existing repo.branches.local.create(branch_name, commit, force=force) @reraise_safe_exceptions def remove_ref(self, wire, key): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: repo.references.delete(key) @reraise_safe_exceptions def tag_remove(self, wire, tag_name): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: key = f'refs/tags/{tag_name}' repo.references.delete(key) @reraise_safe_exceptions def tree_changes(self, wire, source_id, target_id): repo = self._factory.repo(wire) # source can be empty source_id = safe_bytes(source_id if source_id else b'') target_id = safe_bytes(target_id) source = repo[source_id].tree if source_id else None target = repo[target_id].tree result = repo.object_store.tree_changes(source, target) added = set() modified = set() deleted = set() for (old_path, new_path), (_, _), (_, _) in list(result): if new_path and old_path: modified.add(new_path) elif new_path and not old_path: added.add(new_path) elif not new_path and old_path: deleted.add(old_path) return list(added), list(modified), list(deleted) @reraise_safe_exceptions def tree_and_type_for_path(self, wire, commit_id, path): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _tree_and_type_for_path(_context_uid, _repo_id, _commit_id, _path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] try: tree = commit.tree[path] except KeyError: return None, None, None return tree.id.hex, tree.type_str, tree.filemode return _tree_and_type_for_path(context_uid, repo_id, commit_id, path) @reraise_safe_exceptions def tree_items(self, wire, tree_id): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _tree_items(_repo_id, _tree_id): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: try: tree = repo[tree_id] except KeyError: raise ObjectMissing(f'No tree with id: {tree_id}') result = [] for item in tree: item_sha = item.hex item_mode = item.filemode item_type = item.type_str if item_type == 'commit': # NOTE(marcink): submodules we translate to 'link' for backward compat item_type = 'link' result.append((item.name, item_mode, item_sha, item_type)) return result return _tree_items(repo_id, tree_id) @reraise_safe_exceptions def diff_2(self, wire, commit_id_1, commit_id_2, file_filter, opt_ignorews, context): """ Old version that uses subprocess to call diff """ flags = [ f'-U{context}', '--patch', '--binary', '--find-renames', '--no-indent-heuristic', # '--indent-heuristic', #'--full-index', #'--abbrev=40' ] if opt_ignorews: flags.append('--ignore-all-space') if commit_id_1 == self.EMPTY_COMMIT: cmd = ['show'] + flags + [commit_id_2] else: cmd = ['diff'] + flags + [commit_id_1, commit_id_2] if file_filter: cmd.extend(['--', file_filter]) diff, __ = self.run_git_command(wire, cmd) # If we used 'show' command, strip first few lines (until actual diff # starts) if commit_id_1 == self.EMPTY_COMMIT: lines = diff.splitlines() x = 0 for line in lines: if line.startswith(b'diff'): break x += 1 # Append new line just like 'diff' command do diff = '\n'.join(lines[x:]) + '\n' return diff @reraise_safe_exceptions def diff(self, wire, commit_id_1, commit_id_2, file_filter, opt_ignorews, context): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: swap = True flags = 0 flags |= pygit2.GIT_DIFF_SHOW_BINARY if opt_ignorews: flags |= pygit2.GIT_DIFF_IGNORE_WHITESPACE if commit_id_1 == self.EMPTY_COMMIT: comm1 = repo[commit_id_2] diff_obj = comm1.tree.diff_to_tree( flags=flags, context_lines=context, swap=swap) else: comm1 = repo[commit_id_2] comm2 = repo[commit_id_1] diff_obj = comm1.tree.diff_to_tree( comm2.tree, flags=flags, context_lines=context, swap=swap) similar_flags = 0 similar_flags |= pygit2.GIT_DIFF_FIND_RENAMES diff_obj.find_similar(flags=similar_flags) if file_filter: for p in diff_obj: if p.delta.old_file.path == file_filter: return BytesEnvelope(p.data) or BytesEnvelope(b'') # fo matching path == no diff return BytesEnvelope(b'') return BytesEnvelope(safe_bytes(diff_obj.patch)) or BytesEnvelope(b'') @reraise_safe_exceptions def node_history(self, wire, commit_id, path, limit): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _node_history(_context_uid, _repo_id, _commit_id, _path, _limit): # optimize for n==1, rev-list is much faster for that use-case if limit == 1: cmd = ['rev-list', '-1', commit_id, '--', path] else: cmd = ['log'] if limit: cmd.extend(['-n', str(safe_int(limit, 0))]) cmd.extend(['--pretty=format: %H', '-s', commit_id, '--', path]) output, __ = self.run_git_command(wire, cmd) commit_ids = re.findall(rb'[0-9a-fA-F]{40}', output) return [x for x in commit_ids] return _node_history(context_uid, repo_id, commit_id, path, limit) @reraise_safe_exceptions def node_annotate_legacy(self, wire, commit_id, path): # note: replaced by pygit2 implementation cmd = ['blame', '-l', '--root', '-r', commit_id, '--', path] # -l ==> outputs long shas (and we need all 40 characters) # --root ==> doesn't put '^' character for boundaries # -r commit_id ==> blames for the given commit output, __ = self.run_git_command(wire, cmd) result = [] for i, blame_line in enumerate(output.splitlines()[:-1]): line_no = i + 1 blame_commit_id, line = re.split(rb' ', blame_line, 1) result.append((line_no, blame_commit_id, line)) return result @reraise_safe_exceptions def node_annotate(self, wire, commit_id, path): result_libgit = [] repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] blame_obj = repo.blame(path, newest_commit=commit_id) file_content = commit.tree[path].data for i, line in enumerate(splitnewlines(file_content)): line_no = i + 1 hunk = blame_obj.for_line(line_no) blame_commit_id = hunk.final_commit_id.hex result_libgit.append((line_no, blame_commit_id, line)) return BinaryEnvelope(result_libgit) @reraise_safe_exceptions def update_server_info(self, wire, force=False): cmd = ['update-server-info'] if force: cmd += ['--force'] output, __ = self.run_git_command(wire, cmd) return output.splitlines() @reraise_safe_exceptions def get_all_commit_ids(self, wire): cache_on, context_uid, repo_id = self._cache_on(wire) region = self._region(wire) @region.conditional_cache_on_arguments(condition=cache_on) def _get_all_commit_ids(_context_uid, _repo_id): cmd = ['rev-list', '--reverse', '--date-order', '--branches', '--tags'] try: output, __ = self.run_git_command(wire, cmd) return output.splitlines() except Exception: # Can be raised for empty repositories return [] @region.conditional_cache_on_arguments(condition=cache_on) def _get_all_commit_ids_pygit2(_context_uid, _repo_id): repo_init = self._factory.repo_libgit2(wire) from pygit2 import GIT_SORT_REVERSE, GIT_SORT_TIME, GIT_BRANCH_ALL results = [] with repo_init as repo: for commit in repo.walk(repo.head.target, GIT_SORT_TIME | GIT_BRANCH_ALL | GIT_SORT_REVERSE): results.append(commit.id.hex) return _get_all_commit_ids(context_uid, repo_id) @reraise_safe_exceptions def run_git_command(self, wire, cmd, **opts): path = wire.get('path', None) debug_mode = rhodecode.ConfigGet().get_bool('debug') if path and os.path.isdir(path): opts['cwd'] = path if '_bare' in opts: _copts = [] del opts['_bare'] else: _copts = ['-c', 'core.quotepath=false', '-c', 'advice.diverging=false'] safe_call = False if '_safe' in opts: # no exc on failure del opts['_safe'] safe_call = True if '_copts' in opts: _copts.extend(opts['_copts'] or []) del opts['_copts'] gitenv = os.environ.copy() gitenv.update(opts.pop('extra_env', {})) # need to clean fix GIT_DIR ! if 'GIT_DIR' in gitenv: del gitenv['GIT_DIR'] gitenv['GIT_CONFIG_NOGLOBAL'] = '1' gitenv['GIT_DISCOVERY_ACROSS_FILESYSTEM'] = '1' cmd = [settings.GIT_EXECUTABLE()] + _copts + cmd _opts = {'env': gitenv, 'shell': False} proc = None try: _opts.update(opts) proc = subprocessio.SubprocessIOChunker(cmd, **_opts) return b''.join(proc), b''.join(proc.stderr) except OSError as err: cmd = ' '.join(map(safe_str, cmd)) # human friendly CMD call_opts = {} if debug_mode: call_opts = _opts tb_err = ("Couldn't run git command ({}).\n" "Original error was:{}\n" "Call options:{}\n" .format(cmd, err, call_opts)) log.exception(tb_err) if safe_call: return '', err else: raise exceptions.VcsException()(tb_err) finally: if proc: proc.close() @reraise_safe_exceptions def install_hooks(self, wire, force=False): from vcsserver.hook_utils import install_git_hooks bare = self.bare(wire) path = wire['path'] binary_dir = settings.BINARY_DIR if binary_dir: os.path.join(binary_dir, 'python3') return install_git_hooks(path, bare, force_create=force) @reraise_safe_exceptions def get_hooks_info(self, wire): from vcsserver.hook_utils import ( get_git_pre_hook_version, get_git_post_hook_version) bare = self.bare(wire) path = wire['path'] return { 'pre_version': get_git_pre_hook_version(path, bare), 'post_version': get_git_post_hook_version(path, bare), } @reraise_safe_exceptions def set_head_ref(self, wire, head_name): log.debug('Setting refs/head to `%s`', head_name) repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: repo.set_head(f'refs/heads/{head_name}') return [head_name] + [f'set HEAD to refs/heads/{head_name}'] @reraise_safe_exceptions def archive_repo(self, wire, archive_name_key, kind, mtime, archive_at_path, archive_dir_name, commit_id, cache_config): def file_walker(_commit_id, path): repo_init = self._factory.repo_libgit2(wire) with repo_init as repo: commit = repo[commit_id] if path in ['', '/']: tree = commit.tree else: tree = commit.tree[path.rstrip('/')] tree_id = tree.id.hex try: tree = repo[tree_id] except KeyError: raise ObjectMissing(f'No tree with id: {tree_id}') index = LibGit2Index.Index() index.read_tree(tree) file_iter = index for file_node in file_iter: file_path = file_node.path mode = file_node.mode is_link = stat.S_ISLNK(mode) if mode == pygit2.GIT_FILEMODE_COMMIT: log.debug('Skipping path %s as a commit node', file_path) continue yield ArchiveNode(file_path, mode, is_link, repo[file_node.hex].read_raw) return store_archive_in_cache( file_walker, archive_name_key, kind, mtime, archive_at_path, archive_dir_name, commit_id, cache_config=cache_config)