"""
Decentralized storage grid.
-maintainer web site: U{http://allmydata.com/}
-
-community web site: U{http://allmydata.org/}
+community web site: U{https://tahoe-lafs.org/}
"""
-# This is just to suppress DeprecationWarnings from nevow and twisted.
-# See http://allmydata.org/trac/tahoe/ticket/859 and
-# http://divmod.org/trac/ticket/2994 .
-import warnings
-warnings.filterwarnings("ignore", category=DeprecationWarning,
- message="object.__new__\(\) takes no parameters",
- append=True)
-warnings.filterwarnings("ignore", category=DeprecationWarning,
- message="The popen2 module is deprecated. Use the subprocess module.",
- append=True)
-warnings.filterwarnings("ignore", category=DeprecationWarning,
- message="the md5 module is deprecated; use hashlib instead",
- append=True)
-warnings.filterwarnings("ignore", category=DeprecationWarning,
- message="the sha module is deprecated; use the hashlib module instead",
- append=True)
-warnings.filterwarnings("ignore", category=DeprecationWarning,
- message="twisted.web.error.NoResource is deprecated since Twisted 9.0. See twisted.web.resource.NoResource.",
- append=True)
-try:
- import nevow
- from twisted.persisted import sob
- from twisted.python import filepath
- hush_pyflakes = (nevow, sob, filepath)
- del hush_pyflakes
-finally:
- warnings.filters.pop()
- warnings.filters.pop()
- warnings.filters.pop()
- warnings.filters.pop()
+class PackagingError(EnvironmentError):
+ """
+ Raised when there is an error in packaging of Tahoe-LAFS or its
+ dependencies which makes it impossible to proceed safely.
+ """
+ pass
__version__ = "unknown"
try:
- from _version import __version__
+ from allmydata._version import __version__
except ImportError:
- # We're running in a tree that hasn't run "./setup.py darcsver", and didn't
- # come with a _version.py, so we don't know what our version is. This should
- # not happen very often.
+ # We're running in a tree that hasn't run update_version, and didn't
+ # come with a _version.py, so we don't know what our version is.
+ # This should not happen very often.
+ pass
+
+full_version = "unknown"
+branch = "unknown"
+try:
+ from allmydata._version import full_version, branch
+except ImportError:
+ # We're running in a tree that hasn't run update_version, and didn't
+ # come with a _version.py, so we don't know what our full version or
+ # branch is. This should not happen very often.
pass
__appname__ = "unknown"
try:
- from _appname import __appname__
+ from allmydata._appname import __appname__
except ImportError:
# We're running in a tree that hasn't run "./setup.py". This shouldn't happen.
pass
# __full_version__ is the one that you ought to use when identifying yourself in the
# "application" part of the Tahoe versioning scheme:
-# http://allmydata.org/trac/tahoe/wiki/Versioning
+# https://tahoe-lafs.org/trac/tahoe-lafs/wiki/Versioning
__full_version__ = __appname__ + '/' + str(__version__)
-import _auto_deps
-_auto_deps.require_auto_deps()
-
-import os, platform, re, subprocess, sys
+import os, platform, re, subprocess, sys, traceback
_distributor_id_cmdline_re = re.compile("(?:Distributor ID:)\s*(.*)", re.I)
_release_cmdline_re = re.compile("(?:Release:)\s*(.*)", re.I)
if _distname and _version:
return (_distname, _version)
except EnvironmentError:
- pass
+ pass
(_distname, _version) = platform.dist()[:2]
if _distname and _version:
return (_distname, _version)
- try:
- p = subprocess.Popen(["lsb_release", "--all"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
- rc = p.wait()
- if rc == 0:
- for line in p.stdout.readlines():
- m = _distributor_id_cmdline_re.search(line)
- if m:
- _distname = m.group(1).strip()
- if _distname and _version:
- return (_distname, _version)
-
- m = _release_cmdline_re.search(p.stdout.read())
- if m:
- _version = m.group(1).strip()
- if _distname and _version:
- return (_distname, _version)
- except EnvironmentError:
- pass
+ if os.path.isfile("/usr/bin/lsb_release") or os.path.isfile("/bin/lsb_release"):
+ try:
+ p = subprocess.Popen(["lsb_release", "--all"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ rc = p.wait()
+ if rc == 0:
+ for line in p.stdout.readlines():
+ m = _distributor_id_cmdline_re.search(line)
+ if m:
+ _distname = m.group(1).strip()
+ if _distname and _version:
+ return (_distname, _version)
+
+ m = _release_cmdline_re.search(p.stdout.read())
+ if m:
+ _version = m.group(1).strip()
+ if _distname and _version:
+ return (_distname, _version)
+ except EnvironmentError:
+ pass
if os.path.exists("/etc/arch-release"):
return ("Arch_Linux", "")
else:
return platform.platform()
-def get_package_versions_and_locations():
- # because there are a few dependencies that are outside setuptools's ken
- # (Python and platform, and sqlite3 if you are on Python >= 2.5), and
- # because setuptools might fail to find something even though import
- # finds it:
- import OpenSSL, allmydata, foolscap.api, nevow, platform, pycryptopp, setuptools, simplejson, twisted, zfec, zope.interface
- pysqlitever = None
- pysqlitefile = None
- sqlitever = None
+
+from allmydata.util import verlib
+def normalized_version(verstr, what=None):
try:
- import sqlite3
- except ImportError:
- try:
- from pysqlite2 import dbapi2
- except ImportError:
- pass
- else:
- pysqlitever = dbapi2.version
- pysqlitefile = os.path.dirname(dbapi2.__file__)
- sqlitever = dbapi2.sqlite_version
- else:
- pysqlitever = sqlite3.version
- pysqlitefile = os.path.dirname(sqlite3.__file__)
- sqlitever = sqlite3.sqlite_version
-
- d1 = {
- 'pyOpenSSL': (OpenSSL.__version__, os.path.dirname(OpenSSL.__file__)),
- 'allmydata-tahoe': (allmydata.__version__, os.path.dirname(allmydata.__file__)),
- 'foolscap': (foolscap.api.__version__, os.path.dirname(foolscap.__file__)),
- 'Nevow': (nevow.__version__, os.path.dirname(nevow.__file__)),
- 'pycryptopp': (pycryptopp.__version__, os.path.dirname(pycryptopp.__file__)),
- 'setuptools': (setuptools.__version__, os.path.dirname(setuptools.__file__)),
- 'simplejson': (simplejson.__version__, os.path.dirname(simplejson.__file__)),
- 'pysqlite': (pysqlitever, pysqlitefile),
- 'sqlite': (sqlitever, 'unknown'),
- 'zope.interface': ('unknown', os.path.dirname(zope.interface.__file__)),
- 'Twisted': (twisted.__version__, os.path.dirname(twisted.__file__)),
- 'zfec': (zfec.__version__, os.path.dirname(zfec.__file__)),
- 'python': (platform.python_version(), sys.executable),
- 'platform': (get_platform(), None),
- }
-
- # But we prefer to get all the dependencies as known by setuptools:
- import pkg_resources
+ return verlib.NormalizedVersion(verlib.suggest_normalized_version(verstr))
+ except (StandardError, verlib.IrrationalVersionError):
+ cls, value, trace = sys.exc_info()
+ raise PackagingError, ("could not parse %s due to %s: %s"
+ % (what or repr(verstr), cls.__name__, value)), trace
+
+def get_openssl_version():
try:
- d2 = _auto_deps.get_package_versions_from_setuptools()
- except pkg_resources.DistributionNotFound:
- # See docstring in _auto_deps.require_auto_deps() to explain why it makes sense to ignore this exception.
+ from OpenSSL import SSL
+ return extract_openssl_version(SSL)
+ except Exception:
+ return ("unknown", None, None)
+
+def extract_openssl_version(ssl_module):
+ openssl_version = ssl_module.SSLeay_version(ssl_module.SSLEAY_VERSION)
+ if openssl_version.startswith('OpenSSL '):
+ openssl_version = openssl_version[8 :]
+
+ (version, _, comment) = openssl_version.partition(' ')
+
+ try:
+ openssl_cflags = ssl_module.SSLeay_version(ssl_module.SSLEAY_CFLAGS)
+ if '-DOPENSSL_NO_HEARTBEATS' in openssl_cflags.split(' '):
+ comment += ", no heartbeats"
+ except Exception:
pass
- else:
- d1.update(d2)
- return d1
+ return (version, None, comment if comment else None)
+
+def get_package_versions_and_locations():
+ import warnings
+ from _auto_deps import package_imports, global_deprecation_messages, deprecation_messages, \
+ runtime_warning_messages, warning_imports, ignorable
+
+ def package_dir(srcfile):
+ return os.path.dirname(os.path.dirname(os.path.normcase(os.path.realpath(srcfile))))
+
+ # pkg_resources.require returns the distribution that pkg_resources attempted to put
+ # on sys.path, which can differ from the one that we actually import due to #1258,
+ # or any other bug that causes sys.path to be set up incorrectly. Therefore we
+ # must import the packages in order to check their versions and paths.
+
+ # This is to suppress all UserWarnings and various DeprecationWarnings and RuntimeWarnings
+ # (listed in _auto_deps.py).
+
+ warnings.filterwarnings("ignore", category=UserWarning, append=True)
+
+ for msg in global_deprecation_messages + deprecation_messages:
+ warnings.filterwarnings("ignore", category=DeprecationWarning, message=msg, append=True)
+ for msg in runtime_warning_messages:
+ warnings.filterwarnings("ignore", category=RuntimeWarning, message=msg, append=True)
+ try:
+ for modulename in warning_imports:
+ try:
+ __import__(modulename)
+ except ImportError:
+ pass
+ finally:
+ # Leave suppressions for UserWarnings and global_deprecation_messages active.
+ for ign in runtime_warning_messages + deprecation_messages:
+ warnings.filters.pop()
+
+ packages = []
+
+ def get_version(module):
+ if hasattr(module, '__version__'):
+ return str(getattr(module, '__version__'))
+ elif hasattr(module, 'version'):
+ ver = getattr(module, 'version')
+ if isinstance(ver, tuple):
+ return '.'.join(map(str, ver))
+ else:
+ return str(ver)
+ else:
+ return 'unknown'
+
+ for pkgname, modulename in [(__appname__, 'allmydata')] + package_imports:
+ if modulename:
+ try:
+ __import__(modulename)
+ module = sys.modules[modulename]
+ except ImportError:
+ etype, emsg, etrace = sys.exc_info()
+ trace_info = (etype, str(emsg), ([None] + traceback.extract_tb(etrace))[-1])
+ packages.append( (pkgname, (None, None, trace_info)) )
+ else:
+ comment = None
+ if pkgname == __appname__:
+ comment = "%s: %s" % (branch, full_version)
+ elif pkgname == 'setuptools' and hasattr(module, '_distribute'):
+ # distribute does not report its version in any module variables
+ comment = 'distribute'
+ packages.append( (pkgname, (get_version(module), package_dir(module.__file__), comment)) )
+ elif pkgname == 'python':
+ packages.append( (pkgname, (platform.python_version(), sys.executable, None)) )
+ elif pkgname == 'platform':
+ packages.append( (pkgname, (get_platform(), None, None)) )
+ elif pkgname == 'OpenSSL':
+ packages.append( (pkgname, get_openssl_version()) )
+
+ cross_check_errors = []
+
+ if not hasattr(sys, 'frozen'):
+ import pkg_resources
+ from _auto_deps import install_requires
+
+ pkg_resources_vers_and_locs = dict([(p.project_name.lower(), (str(p.version), p.location))
+ for p in pkg_resources.require(install_requires)])
+
+ imported_packages = set([p.lower() for (p, _) in packages])
+ extra_packages = []
+
+ for pr_name, (pr_ver, pr_loc) in pkg_resources_vers_and_locs.iteritems():
+ if pr_name not in imported_packages and pr_name not in ignorable:
+ extra_packages.append( (pr_name, (pr_ver, pr_loc, "according to pkg_resources")) )
+
+ cross_check_errors = cross_check(pkg_resources_vers_and_locs, packages)
+ packages += extra_packages
+
+ return packages, cross_check_errors
+
+
+def check_requirement(req, vers_and_locs):
+ # We support only conjunctions of <=, >=, and !=
+
+ reqlist = req.split(',')
+ name = reqlist[0].split('<=')[0].split('>=')[0].split('!=')[0].strip(' ').split('[')[0]
+ if name not in vers_and_locs:
+ raise PackagingError("no version info for %s" % (name,))
+ if req.strip(' ') == name:
+ return
+ (actual, location, comment) = vers_and_locs[name]
+ if actual is None:
+ # comment is (type, message, (filename, line number, function name, text)) for the original ImportError
+ raise ImportError("for requirement %r: %s" % (req, comment))
+ if actual == 'unknown':
+ return
+ actualver = normalized_version(actual, what="actual version %r of %s from %r" % (actual, name, location))
+
+ if not match_requirement(req, reqlist, actualver):
+ msg = ("We require %s, but could only find version %s.\n" % (req, actual))
+ if location and location != 'unknown':
+ msg += "The version we found is from %r.\n" % (location,)
+ msg += ("To resolve this problem, uninstall that version, either using your\n"
+ "operating system's package manager or by moving aside the directory.")
+ raise PackagingError(msg)
+
+
+def match_requirement(req, reqlist, actualver):
+ for r in reqlist:
+ s = r.split('<=')
+ if len(s) == 2:
+ required = s[1].strip(' ')
+ if not (actualver <= normalized_version(required, what="required maximum version %r in %r" % (required, req))):
+ return False # maximum requirement not met
+ else:
+ s = r.split('>=')
+ if len(s) == 2:
+ required = s[1].strip(' ')
+ if not (actualver >= normalized_version(required, what="required minimum version %r in %r" % (required, req))):
+ return False # minimum requirement not met
+ else:
+ s = r.split('!=')
+ if len(s) == 2:
+ required = s[1].strip(' ')
+ if not (actualver != normalized_version(required, what="excluded version %r in %r" % (required, req))):
+ return False # not-equal requirement not met
+ else:
+ raise PackagingError("no version info or could not understand requirement %r" % (req,))
+
+ return True
+
+
+def cross_check(pkg_resources_vers_and_locs, imported_vers_and_locs_list):
+ """This function returns a list of errors due to any failed cross-checks."""
+
+ from _auto_deps import not_import_versionable
+
+ errors = []
+ not_pkg_resourceable = ['python', 'platform', __appname__.lower(), 'openssl']
+
+ for name, (imp_ver, imp_loc, imp_comment) in imported_vers_and_locs_list:
+ name = name.lower()
+ if name not in not_pkg_resourceable:
+ if name not in pkg_resources_vers_and_locs:
+ if name == "setuptools" and "distribute" in pkg_resources_vers_and_locs:
+ pr_ver, pr_loc = pkg_resources_vers_and_locs["distribute"]
+ if not (os.path.normpath(os.path.realpath(pr_loc)) == os.path.normpath(os.path.realpath(imp_loc))
+ and imp_comment == "distribute"):
+ errors.append("Warning: dependency 'setuptools' found to be version %r of 'distribute' from %r "
+ "by pkg_resources, but 'import setuptools' gave version %r [%s] from %r. "
+ "A version mismatch is expected, but a location mismatch is not."
+ % (pr_ver, pr_loc, imp_ver, imp_comment or 'probably *not* distribute', imp_loc))
+ else:
+ errors.append("Warning: dependency %r (version %r imported from %r) was not found by pkg_resources."
+ % (name, imp_ver, imp_loc))
+ continue
+
+ pr_ver, pr_loc = pkg_resources_vers_and_locs[name]
+ if imp_ver is None and imp_loc is None:
+ errors.append("Warning: dependency %r could not be imported. pkg_resources thought it should be possible "
+ "to import version %r from %r.\nThe exception trace was %r."
+ % (name, pr_ver, pr_loc, imp_comment))
+ continue
+
+ try:
+ pr_normver = normalized_version(pr_ver)
+ except Exception, e:
+ errors.append("Warning: version number %r found for dependency %r by pkg_resources could not be parsed. "
+ "The version found by import was %r from %r. "
+ "pkg_resources thought it should be found at %r. "
+ "The exception was %s: %s"
+ % (pr_ver, name, imp_ver, imp_loc, pr_loc, e.__class__.__name__, e))
+ else:
+ if imp_ver == 'unknown':
+ if name not in not_import_versionable:
+ errors.append("Warning: unexpectedly could not find a version number for dependency %r imported from %r. "
+ "pkg_resources thought it should be version %r at %r."
+ % (name, imp_loc, pr_ver, pr_loc))
+ else:
+ try:
+ imp_normver = normalized_version(imp_ver)
+ except Exception, e:
+ errors.append("Warning: version number %r found for dependency %r (imported from %r) could not be parsed. "
+ "pkg_resources thought it should be version %r at %r. "
+ "The exception was %s: %s"
+ % (imp_ver, name, imp_loc, pr_ver, pr_loc, e.__class__.__name__, e))
+ else:
+ if pr_ver == 'unknown' or (pr_normver != imp_normver):
+ if not os.path.normpath(os.path.realpath(pr_loc)) == os.path.normpath(os.path.realpath(imp_loc)):
+ errors.append("Warning: dependency %r found to have version number %r (normalized to %r, from %r) "
+ "by pkg_resources, but version %r (normalized to %r, from %r) by import."
+ % (name, pr_ver, str(pr_normver), pr_loc, imp_ver, str(imp_normver), imp_loc))
+
+ return errors
+
+
+_vers_and_locs_list, _cross_check_errors = get_package_versions_and_locations()
+
+
+def get_error_string(errors, debug=False):
+ from allmydata._auto_deps import install_requires
+
+ msg = "\n%s\n" % ("\n".join(errors),)
+ if debug:
+ msg += ("\n"
+ "For debugging purposes, the PYTHONPATH was\n"
+ " %r\n"
+ "install_requires was\n"
+ " %r\n"
+ "sys.path after importing pkg_resources was\n"
+ " %s\n"
+ % (os.environ.get('PYTHONPATH'), install_requires, (os.pathsep+"\n ").join(sys.path)) )
+ return msg
+
+def check_all_requirements():
+ """This function returns a list of errors due to any failed checks."""
+
+ from allmydata._auto_deps import install_requires
+
+ fatal_errors = []
+
+ # We require at least 2.6 on all platforms.
+ # (On Python 3, we'll have failed long before this point.)
+ if sys.version_info < (2, 6):
+ try:
+ version_string = ".".join(map(str, sys.version_info))
+ except Exception:
+ version_string = repr(sys.version_info)
+ fatal_errors.append("Tahoe-LAFS currently requires Python v2.6 or greater (but less than v3), not %s"
+ % (version_string,))
+
+ vers_and_locs = dict(_vers_and_locs_list)
+ for requirement in install_requires:
+ try:
+ check_requirement(requirement, vers_and_locs)
+ except (ImportError, PackagingError), e:
+ fatal_errors.append("%s: %s" % (e.__class__.__name__, e))
+
+ if fatal_errors:
+ raise PackagingError(get_error_string(fatal_errors + _cross_check_errors, debug=True))
+
+check_all_requirements()
+
def get_package_versions():
- return dict([(k, v) for k, (v, l) in get_package_versions_and_locations().iteritems()])
+ return dict([(k, v) for k, (v, l, c) in _vers_and_locs_list])
def get_package_locations():
- return dict([(k, l) for k, (v, l) in get_package_versions_and_locations().iteritems()])
+ return dict([(k, l) for k, (v, l, c) in _vers_and_locs_list])
-def get_package_versions_string(show_paths=False):
- vers_and_locs = get_package_versions_and_locations()
+def get_package_versions_string(show_paths=False, debug=False):
res = []
- for p in ["allmydata-tahoe", "foolscap", "pycryptopp", "zfec", "Twisted", "Nevow", "zope.interface", "python", "platform"]:
- (ver, loc) = vers_and_locs.get(p, ('UNKNOWN', 'UNKNOWN'))
- info = str(p) + ": " + str(ver)
- if show_paths:
- info = info + " (%s)" % str(loc)
- res.append(info)
- if vers_and_locs.has_key(p):
- del vers_and_locs[p]
-
- for p, (v, loc) in vers_and_locs.iteritems():
+ for p, (v, loc, comment) in _vers_and_locs_list:
info = str(p) + ": " + str(v)
+ if comment:
+ info = info + " [%s]" % str(comment)
if show_paths:
info = info + " (%s)" % str(loc)
res.append(info)
- return ', '.join(res)
+
+ output = "\n".join(res) + "\n"
+
+ if _cross_check_errors:
+ output += get_error_string(_cross_check_errors, debug=debug)
+
+ return output
projects / tahoe-lafs / tahoe-lafs.git / blobdiff