def download(self, dest, accumulator):
logger.info('Retrieving file names')
for filename in self.files:
logger.indent = 0
logger.info('Downloading {0}', filename)
logger.indent = 8
path = os.path.abspath(os.path.join(dest, filename))
if os.path.exists(path):
txt = 'The destination already exists: {0}\nWhat do you want to do'.format(path)
u = logger.ask(txt, choices={'destroy': 'd', 'backup': 'b', 'exit': 'x'})
if u == 'd':
logger.info('Removing {0}', path)
os.remove(path)
elif u == 'b':
d = path + '.pyg-backup'
logger.info('Moving {0} to {1}', path, d)
shutil.copyfile(path, d)
elif u == 'x':
logger.info('Exiting...')
sys.exit(0)
with open(path, 'w') as f:
logger.info('Writing data into {0}', filename)
f.write(self.get_file_content(filename))
accumulator.add(filename)
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 check_dest(self):
## If the target directory is empty we don't have to worry
try:
if not os.listdir(self.dest):
return
## If self.dest does not exist we leave it as it is, because it will be
## created by the `else` clause (below)
except OSError:
pass
if os.path.exists(self.dest):
txt = 'The destination already exists: {0}\nWhat do you want to do ?'.format(self.dest)
u = logger.ask(txt, choices={'destroy': 'd', 'backup': 'b', 'exit': 'x'})
if u == 'd':
logger.info('Removing {0}...', self.dest)
shutil.rmtree(self.dest)
os.makedirs(self.dest)
elif u == 'b':
dst = os.path.join(os.path.dirname(self.dest),
self.dest + '-pyg-backup')
logger.info('Moving {0} to {1}', self.dest, dst)
shutil.move(self.dest, dst)
os.makedirs(self.dest)
elif u == 'x':
logger.info('Exiting...')
sys.exit(0)
else:
os.makedirs(self.dest)
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 _check_bad_eggs(self, bad_eggs):
## Bad eggs are eggs which require a different Python version.
## If we don't find anything more, we check bad eggs.s
txt = 'Found only eggs for another Python version, which one do you want to install'
choice = logger.ask(txt, choices={v[1]: v for v in bad_eggs})
self._download_and_install(*choice)