diff --git a/swh/loader/cvs/loader.py b/swh/loader/cvs/loader.py index c88a12c..d7b84d5 100644 --- a/swh/loader/cvs/loader.py +++ b/swh/loader/cvs/loader.py @@ -1,224 +1,228 @@ # Copyright (C) 2015-2021 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information """Loader in charge of injecting either new or existing cvs repositories to swh-storage. """ from datetime import datetime from mmap import ACCESS_WRITE, mmap import os import pty import re import shutil import subprocess import tempfile import time from typing import Dict, Iterator, List, Optional, Tuple from urllib3.util import parse_url from swh.loader.core.loader import BaseLoader from swh.loader.core.utils import clean_dangling_folders from swh.loader.exception import NotFound import swh.loader.cvs.rcsparse as rcsparse from swh.loader.cvs.cvs2gitdump.cvs2gitdump import CvsConv, RcsKeywords, CHANGESET_FUZZ_SEC, file_path from swh.model import from_disk, hashutil from swh.model.model import ( Content, Directory, Origin, Revision, SkippedContent, Snapshot, SnapshotBranch, TargetType, ) from swh.storage.algos.snapshot import snapshot_get_latest from swh.storage.interface import StorageInterface DEFAULT_BRANCH = b"HEAD" TEMPORARY_DIR_PREFIX_PATTERN = "swh.loader.cvs." class CvsLoader(BaseLoader): """Swh cvs loader. The repository is local. The loader deals with update on an already previously loaded repository. """ visit_type = "cvs" def __init__( self, storage: StorageInterface, url: str, origin_url: Optional[str] = None, visit_date: Optional[datetime] = None, cvsroot_path: Optional[str] = None, swh_revision: Optional[str] = None, start_from_scratch: bool = False, temp_directory: str = "/tmp", debug: bool = False, check_revision: int = 0, max_content_size: Optional[int] = None, ): super().__init__( storage=storage, logging_class="swh.loader.cvs.CvsLoader", max_content_size=max_content_size, ) self.cvsroot_url = url # origin url as unique identifier for origin in swh archive self.origin_url = origin_url if origin_url else self.cvsroot_url self.debug = debug self.temp_directory = temp_directory self.done = False self.cvs_module_name = None self.cvs_module_path = None self.cvs_changesets = None self.rcs = RcsKeywords() # Revision check is configurable self.check_revision = check_revision # internal state used to store swh objects self._contents: List[Content] = [] self._skipped_contents: List[SkippedContent] = [] self._directories: List[Directory] = [] self._revisions: List[Revision] = [] self._snapshot: Optional[Snapshot] = None # internal state, current visit self._last_revision = None self._visit_status = "full" self._load_status = "uneventful" self.visit_date = visit_date self.cvsroot_path = cvsroot_path self.start_from_scratch = start_from_scratch self.snapshot = None # state from previous visit self.latest_snapshot = None self.latest_revision = None def prepare_origin_visit(self): self.origin = Origin(url=self.origin_url if self.origin_url else self.cvsroot_url) def cleanup(self): self.log.info("cleanup") def fetch_cvs_repo_with_rsync(self, host, path_on_server): # URL *must* end with a trailing slash in order to get CVSROOT listed url = 'rsync://%s%s/' % (host, path_on_server) rsync = subprocess.run(['rsync', url], capture_output=True, encoding='ascii') rsync.check_returncode() have_cvsroot = False have_module = False for line in rsync.stdout.split('\n'): self.log.debug("rsync server: %s" % line) if line.endswith(' CVSROOT'): have_cvsroot = True elif line.endswith(' %s' % self.cvs_module_name): have_module = True if have_module and have_cvsroot: break if not have_module: raise NotFound("CVS module %s not found at %s" \ % (self.cvs_module_name, host, url)) if not have_cvsroot: raise NotFound("No CVSROOT directory found at %s" % url) rsync = subprocess.run(['rsync', '-a', url, self.cvsroot_path]) rsync.check_returncode() def prepare(self): if not self.cvsroot_path: self.cvsroot_path = tempfile.mkdtemp( suffix="-%s" % os.getpid(), prefix=TEMPORARY_DIR_PREFIX_PATTERN, dir=self.temp_directory, ) self.worktree_path = tempfile.mkdtemp( suffix="-%s" % os.getpid(), prefix=TEMPORARY_DIR_PREFIX_PATTERN, dir=self.temp_directory, ) url = parse_url(self.origin_url) self.log.debug("prepare; origin_url=%s scheme=%s path=%s" % (self.origin_url, url.scheme, url.path)) if not url.path: raise NotFound("Invalid CVS origin URL '%s'" % self.origin_url) self.cvs_module_name = os.path.basename(url.path) os.mkdir(os.path.join(self.worktree_path, self.cvs_module_name)); self.cvs_module_path = os.path.join(self.cvsroot_path, self.cvs_module_name) if url.scheme == 'file': if not os.path.exists(url.path): raise NotFound elif url.scheme == 'rsync': self.fetch_cvs_repo_with_rsync(url.host, url.path) else: raise NotFound("Invalid CVS origin URL '%s'" % self.origin_url) have_rcsfile = False have_cvsroot = False for root, dirs, files in os.walk(self.cvsroot_path): if 'CVSROOT' in dirs: have_cvsroot = True dirs.remove('CVSROOT') continue; for f in files: filepath = os.path.join(root, f) if f[-2:] == ',v': try: rcsfile = rcsparse.rcsfile(filepath) except(Exception): raise else: self.log.debug("Looks like we have data to convert; " "found a valid RCS file at %s" % filepath) have_rcsfile = True break if have_rcsfile: break; if not have_rcsfile: raise NotFound("Directory %s does not contain any valid RCS files %s" % self.cvsroot_path) if not have_cvsroot: self.log.warn("The CVS repository at '%s' lacks a CVSROOT directory; " "we might be ingesting an incomplete copy of the repository" % self.cvsroot_path) def fetch_data(self): cvs = CvsConv(self.cvsroot_path, self.rcs, False, CHANGESET_FUZZ_SEC) self.log.debug("Walking CVS module %s", self.cvs_module_name) cvs.walk(self.cvs_module_name) self.cvs_changesets = sorted(cvs.changesets) self.log.info('CVS changesets found in %s: %d' % (self.cvs_module_name, len(self.cvs_changesets))) def store_data(self): for k in self.cvs_changesets: tstr = time.strftime('%c', time.gmtime(k.max_time)) self.log.debug("changeset from %s by %s on branch %s", tstr, k.author, k.branch); for f in k.revs: path = file_path(self.cvsroot_path, f.path) wtpath = os.path.join(self.worktree_path, path) self.log.debug("rev %s of file %s" % (f.rev, f.path)); if f.state == 'dead': # remove this file from work tree try: os.remove(wtpath) except FileNotFoundError: pass else: # create, or update, this file in the work tree contents = self.rcs.expand_keyword(f.path, f.rev) - outfile = open(wtpath, mode='wb') + try: + outfile = open(wtpath, mode='wb') + except FileNotFoundError: + os.makedirs(os.path.dirname(wtpath)) + outfile = open(wtpath, mode='wb') outfile.write(contents) outfile.close() def load_status(self): return { "status": self._load_status, } def visit_status(self): return self._visit_status