def update(self):
'''
Searches for updates for every package in the WorkingSet.
Then calls :meth:`~pyg.inst.Updater.upgrade`.
'''
logger.info('Searching for updates')
for dist in self.working_set:
package = dist.project_name
version = Version(dist.version)
logger.verbose('Found: {0}=={1}', package, version)
try:
json = PyPIJson(package).retrieve()
new_version = Version(json['info']['version'])
except Exception as e:
logger.error('Error: Failed to fetch data for {0} ({1})', package, e)
continue
if version >= new_version:
continue
txt = 'A new release is avaiable for {0}: {1!s} (old {2}), update'.format(package, new_version, dist.version)
u = logger.ask(txt, bool=('upgrade version', 'keep working version'), dont_ask=self.yes)
if u:
self.upgrade(package, json, new_version)
else:
logger.info('{0} has not been upgraded', package)
self._clean()
logger.success('Updating finished successfully')
def install(self):
try:
r = Requirement(self.req)
updater = Updater(skip=True)
if self.upgrading:
updater.remove_files(self.req)
r.install()
# Now let's install dependencies
Installer._install_deps(r.reqset, r.name, updater)
logger.success('{0} installed successfully', r.name)
except (KeyboardInterrupt, Exception) as e:
try:
msg = e.args[0]
except IndexError:
msg = repr(e)
if isinstance(e, KeyboardInterrupt):
logger.warn('Process interrupted...')
else:
logger.warn('Error: An error occurred during the {0} of {1}: {2}',
'upgrading' if self.upgrading else 'installation',
self.req,
msg)
if self.upgrading:
logger.info('Restoring files...')
updater.restore_files(self.req)
else:
logger.info('Removing broken files...')
Uninstaller(self.req).uninstall()
logger.error(msg, exc=InstallationError)
def uninstall(self):
path_re = re.compile(r'\./{0}-[\d\w\.]+-py\d\.\d.egg'.format(self.name), re.I)
path_re2 = re.compile(r'\.{0}'.format(self.name), re.I)
to_del = self.find_files()
if not to_del:
logger.warn('{0}: did not find any files to delete', self.name)
raise PygError
logger.info('Uninstalling {0}', self.name)
logger.indent += 8
for d in to_del:
logger.info(d)
logger.indent -= 8
do_it = logger.ask('Proceed', bool=('remove files', 'cancel'), dont_ask=args_manager['install']['yes'])
if do_it:
for d in to_del:
try:
logger.verbose('Deleting: {0}', d)
shutil.rmtree(d)
except OSError: ## It is not a directory
try:
os.remove(d)
except OSError:
logger.error('Error: cannot delete {0}', d)
logger.verbose('Removing egg path from easy_install.pth...')
with open(EASY_INSTALL) as f:
lines = f.readlines()
with open(EASY_INSTALL, 'w') as f:
for line in lines:
if path_re.match(line) or path_re2.match(line):
continue
f.write(line)
logger.success('{0} uninstalled succesfully', self.name)
else:
logger.info('{0} has not been uninstalled', self.name)
def upgrade(self, package_name, json, version):
'''
Upgrade a package to the most recent version.
'''
logger.info('Removing {0} old version', package_name)
self.remove_files(package_name)
args_manager['install']['upgrade'] = True
logger.info('Upgrading {0} to {1}', package_name, version)
logger.indent += 8
for release in json['urls']:
logger.info('Installing {0}...', release['filename'])
logger.indent += 4
try:
Installer.from_url(release['url'])
break
except Exception as e:
try:
msg = e.args[0]
except IndexError:
msg = repr(e)
logger.error('Error: An error occurred while installing {0}: {1}', package_name, msg)
logger.info('Trying another file...')
logger.indent -= 4
else:
logger.warn('Error: Did not find any installable release on PyPI for {0}', package_name)
try:
Requirement('{0}=={1}'.format(package_name, version))._install_from_links(args_manager['install']['packages_url'])
except Exception as e:
logger.fatal('Error: {0}', e, exc=InstallationError)
logger.info('Restoring uninstalled files')
self.restore_files(package_name)
logger.indent = 0
def print_output(output, cmd):
'''Print to sys.stderr the complete output of a failed command'''
logger.info('Complete output from command `{0}`:', cmd)
logger.indent += 8
for line in output.splitlines():
logger.error(line)
logger.indent -= 8
def link(path):
path = os.path.abspath(path)
if not os.path.exists(path):
logger.error('{0} does not exist', path)
if not os.path.exists(PYG_LINKS):
if not os.path.exists(os.path.dirname(PYG_LINKS)):
os.makedirs(os.path.dirname(PYG_LINKS))
open(PYG_LINKS, 'w').close()
path = os.path.abspath(path)
logger.info('Linking {0} in {1}...', path, PYG_LINKS)
if path in open(PYG_LINKS, 'r').read():
logger.warn('{0} is already linked, exiting now...', path)
with open(PYG_LINKS, 'a') as f:
f.write(path)
f.write('\n')
def unpack(path, dest=None):
'''
Unpack the specified archive into the same directory or a specified destination.
'''
path = os.path.abspath(path)
d, n = os.path.split(path)
e = ext(n)
if e in ('.egg', '.zip'):
arch = ZipFile(path)
elif e in ('.tar', '.tar.gz', '.tar.bz2'):
mode = 'r' if e == '.tar' else 'r:' + e.split('.')[2]
arch = tarfile.open(path, mode=mode)
else:
logger.error('Unknown extension: {0}', e, exc=TypeError)
arch.extractall(dest or d)
def install_func(packname, req_file, editable, ignore, yes):
check_and_exit()
if editable:
if len(packname) > 1:
logger.error('Error: Unable to install multiple packages in editable mode')
return
package = packname[0]
if os.path.exists(os.path.abspath(package)):
package = 'dir+{0}#egg={1}'.format(os.path.abspath(package),
os.path.basename(package))
return vcs(package).develop()
if req_file:
logger.info('Installing from requirements file')
for rq in req_file:
Installer.from_req_file(os.path.abspath(rq))
return
if packname:
for package in packname:
_install_package_from_name(package, ignore)
def _download_and_install(self, url, filename, packname, e, hash=None):
fobj = download(url, 'Downloading {0}'.format(self.name))
if hash is not None:
logger.info('Checking md5 sum')
if md5(fobj.getvalue()).hexdigest() != hash:
logger.fatal('Error: {0} appears to be corrupted', self.name)
return
if e in ('.tar.gz', '.tar.bz2', '.zip'):
installer = Archive(fobj, e, packname, self.reqset)
elif e == '.egg':
installer = Egg(fobj, filename, self.reqset, packname)
elif is_windows() and e in WINDOWS_EXT:
installer = Binary(fobj, e, packname)
else:
logger.error('Error: unknown filetype: {0}', e, exc=InstallationError)
## There is no need to catch exceptions now, this will be done by `pyg.inst.Installer.install`
installer.install()
self.success = True
def _install_deps(rs, name=None, updater=None):
if not rs:
return
if args_manager['install']['no_deps']:
logger.info('Skipping dependencies for {0}', name)
logger.indent = 8
for req in rs:
logger.info(req)
logger.indent = 0
return
logger.info('Installing dependencies...')
dep_error = False
newly_installed = []
for req in rs:
if is_installed(req) and not args_manager['install']['upgrade_all']:
logger.indent = 8
logger.info('{0} is already installed, use -A, --upgrade-all to upgrade dependencies', req)
continue
logger.indent = 0
logger.info('Installing {0} (from {1})', req, rs.comes_from)
logger.indent = 8
try:
Installer(req).install()
newly_installed.append(req)
except AlreadyInstalled:
continue
except InstallationError:
dep_error = True
logger.error('Error: {0} has not been installed correctly', req)
continue
logger.indent = 0
if dep_error:
if updater:
for req in newly_installed:
updater.restore_files(req)
updater.remove_files(rs.comes_from.name)
updater.restore_files(rs.comes_from.name)
logger.error("{0}'s dependencies installation failed", rs.comes_from.name, exc=InstallationError)
else:
logger.success('Finished installing dependencies for {0}', rs.comes_from.name)
def _find_develop(self, dir, req):
try:
logger.info('Looking for a local package...')
try:
dist = Develop(req.name)
except (ValueError, AttributeError):
logger.error('Cannot find a local distribution for {0}', req.name, exc=PygError)
else:
# XXX: Add a `location` attribute in pkgtools' next release
location = os.path.abspath(dist._arg_name)
path = os.path.dirname(location)
if not req.match(Version(dist.version)):
logger.error('Found {0}, but it does not match the requirement', path, exc=PygError)
setup_py = os.path.join(path, 'setup.py')
if not os.path.exists(setup_py):
logger.error('Cannot find setup.py for {0}', req.name, exc=PygError)
logger.info('Found a matching package in {0}', path)
with TempDir() as tempdir:
code, output = call_setup(path, ['sdist', '-d', tempdir])
if code != 0:
logger.fatal('setup.py failed to create the source distribution')
print_output(output, 'setup.py sdist')
raise PygError
arch = glob.glob(os.path.join(tempdir, '*{0}*'.format(req.name)))[0]
shutil.move(arch, dir)
arch_name = os.path.join(dir, os.path.basename(arch))
unpack(arch_name)
return arch_name
except (PygError, IndexError, ValueError):
return False
def _install_from_links(self, package_index):
## Monkey-patch for pyg.inst.Updater:
## it does not know the real index url!
logger.info('Looking for links on {0}', package_index)
try:
links = get_links(self, package_index)
if not links:
raise InstallationError('Error: did not find any files')
except Exception as e:
raise InstallationError(str(e))
logger.indent = 8
for url in links:
filename = urlparse.urlparse(url).path.split('/')[-1]
logger.info('Found: {0}', filename)
try:
self._download_and_install(url, filename, self.name)
except Exception as e:
logger.error('Error: {0}', e)
continue
break
logger.indent = 0
if not self.success:
raise InstallationError('Fatal: cannot install {0}'.format(self.name))
