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Whitespace -> PEP-8

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Stefano Rivera 2010-11-23 08:54:42 +02:00
parent 04eb3ada8b
commit b78b21f43e
1 changed files with 348 additions and 336 deletions
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pbuilder-dist
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@ -12,12 +12,12 @@
# modify it under the terms of the GNU General Public License # modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2 # as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version. # of the License, or (at your option) any later version.
# #
# This program is distributed in the hope that it will be useful, # This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of # but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details. # GNU General Public License for more details.
# #
# See file /usr/share/common-licenses/GPL for more details. # See file /usr/share/common-licenses/GPL for more details.
# #
# ################################################################## # ##################################################################
@ -35,351 +35,363 @@ from sys import exit, argv, stderr
import ubuntutools.misc import ubuntutools.misc
debian_distros = ['etch', 'lenny', 'squeeze', 'sid', 'stable', \ debian_distros = ['etch', 'lenny', 'squeeze', 'sid', 'stable', 'testing',
'testing', 'unstable', 'experimental'] 'unstable', 'experimental']
class pbuilder_dist: class pbuilder_dist:
def __init__(self, builder):
# Base directory where pbuilder will put all the files it creates.
self.base = None
# Name of the operation which pbuilder should perform.
self.operation = None
# Wheter additional components should be used or not. That is,
# 'universe' and 'multiverse' for Ubuntu chroots and 'contrib'
# and 'non-free' for Debian.
self.extra_components = True
# File where the log of the last operation will be saved.
self.logfile = None
# System architecture
self.system_architecture = None
# Build architecture
self.build_architecture = None
# System's distribution
self.system_distro = None
# Target distribution
self.target_distro = None
# This is an identificative string which will either take the form
# 'distribution' or 'distribution-architecture'.
self.chroot_string = None
# Authentication method
self.auth = 'sudo'
# Builder
self.builder = builder
# Ensure that the used builder is installed
paths = set(os.environ['PATH'].split(':'))
paths |= set(('/sbin', '/usr/sbin', '/usr/local/sbin'))
if not any(os.path.exists(os.path.join(p, builder)) for p in paths):
print >> stderr, 'Error: Could not find "%s".' % builder
exit(1)
##############################################################
self.base = os.path.expanduser(os.environ.get('PBUILDFOLDER', '~/pbuilder/'))
if not os.path.isdir(self.base): def __init__(self, builder):
try:
os.makedirs(self.base)
except os.OSError:
print >> stderr, ('Error: Cannot create base directory "%s"'
% self.base)
exit(1)
if 'PBUILDAUTH' in os.environ:
self.auth = os.environ['PBUILDAUTH']
self.system_architecture = ubuntutools.misc.host_architecture()
self.system_distro = ubuntutools.misc.system_distribution()
if not self.system_architecture or not self.system_distro:
exit(1)
self.target_distro = self.system_distro
##############################################################
def set_target_distro(self, distro):
""" pbuilder_dist.set_target_distro(distro) -> None
Check if the given target distribution name is correct, if it
isn't know to the system ask the user for confirmation before
proceeding, and finally either save the value into the appropiate
variable or finalize pbuilder-dist's execution.
"""
if not distro.isalpha():
print >> stderr, ('Error: "%s" is an invalid distribution codename.'
% distro)
exit(1)
if not os.path.isfile(os.path.join('/usr/share/debootstrap/scripts/', distro)):
if os.path.isdir('/usr/share/debootstrap/scripts/'):
# Debian experimental doesn't have a debootstrap file but
# should work nevertheless.
if distro not in debian_distros:
answer = ask('Warning: Unknown distribution "%s". Do you ' \
'want to continue [y/N]? ' % distro)
if answer not in ('y', 'Y'):
exit(0)
else:
print >> stderr, 'Please install package "debootstrap".'
exit(1)
self.target_distro = distro
def set_operation(self, operation):
""" pbuilder_dist.set_operation -> None
Check if the given string is a valid pbuilder operation and
depending on this either save it into the appropiate variable
or finalize pbuilder-dist's execution.
"""
arguments = ('create', 'update', 'build', 'clean', 'login', 'execute')
if operation not in arguments:
if operation.endswith('.dsc'):
if os.path.isfile(operation):
self.operation = 'build'
return [operation]
else:
print >> stderr, 'Error: Could not find file "%s".' % operation
exit(1)
else:
print >> stderr, 'Error: "%s" is not a recognized argument.' % operation
print >> stderr, 'Please use one of these: %s.' % ', '.join(arguments)
exit(1)
else:
self.operation = operation
return []
def get_command(self, remaining_arguments = None):
""" pbuilder_dist.get_command -> string
Generate the pbuilder command which matches the given configuration
and return it as a string.
"""
if not self.build_architecture:
self.chroot_string = self.target_distro
self.build_architecture = self.system_architecture
else:
self.chroot_string = self.target_distro + '-' + self.build_architecture
prefix = os.path.join(self.base, self.chroot_string)
result = '%s_result/' % prefix
if not self.logfile and self.operation != 'login':
self.logfile = os.path.normpath('%s/last_operation.log' % result)
if not os.path.isdir(result):
try:
os.makedirs(result)
except os.OSError:
print >> stderr, ('Error: Cannot create results directory "%s"'
% result)
exit(1)
if self.builder == 'pbuilder':
base = '--basetgz "%s-base.tgz"' % prefix
elif self.builder == 'cowbuilder':
base = '--basepath "%s-base.cow"' % prefix
else:
print >> stderr, 'Error: Unrecognized builder "%s".' % self.builder
exit(1)
arguments = [
'--%s' % self.operation,
base,
'--distribution', self.target_distro,
'--buildresult', result,
'--aptcache', '/var/cache/apt/archives/',
'--override-config',
]
if self.logfile: # Base directory where pbuilder will put all the files it creates.
arguments += ['--logfile', self.logfile] self.base = None
if os.path.exists('/var/cache/archive/'):
arguments += ['--bindmounts', '/var/cache/archive/']
localrepo = '/var/cache/archive/' + self.target_distro # Name of the operation which pbuilder should perform.
if os.path.exists(localrepo): self.operation = None
arguments += [
'--othermirror ',
'deb file:///var/cache/archive/ %s/' % self.target_distro,
]
if self.target_distro in debian_distros:
arguments += ['--mirror', 'http://ftp.debian.org/debian']
# work around bug #599695
arguments += [
'--debootstrapopts',
'--keyring=/usr/share/keyrings/debian-archive-keyring.gpg',
]
components = 'main'
if self.extra_components:
components += ' contrib non-free'
else:
if self.build_architecture in ('amd64', 'i386'):
arguments += ['--mirror', 'http://archive.ubuntu.com/ubuntu/']
elif self.build_architecture == 'powerpc' and self.target_distro == 'dapper':
arguments += ['--mirror', 'http://archive.ubuntu.com/ubuntu/']
else:
arguments += ['--mirror',
'http://ports.ubuntu.com/ubuntu-ports/']
components = 'main restricted'
if self.extra_components:
components += ' universe multiverse'
arguments += ['--components', components] # Wheter additional components should be used or not. That is,
# 'universe' and 'multiverse' for Ubuntu chroots and 'contrib'
if self.build_architecture != self.system_architecture: # and 'non-free' for Debian.
arguments += ['--debootstrapopts', self.extra_components = True
'--arch=' + self.build_architecture]
# File where the log of the last operation will be saved.
apt_conf_dir = os.path.join(self.base, 'etc/%s/apt.conf' % self.target_distro) self.logfile = None
if os.path.exists(apt_conf_dir):
arguments += ['--aptconfdir', apt_conf_dir] # System architecture
self.system_architecture = None
# Append remaining arguments
if remaining_arguments: # Build architecture
arguments.extend(remaining_arguments) self.build_architecture = None
# Export the distribution and architecture information to the # System's distribution
# environment so that it is accessible to ~/.pbuilderrc (LP: #628933). self.system_distro = None
return [
self.auth, # Target distribution
'ARCH=' + self.build_architecture, self.target_distro = None
'DIST=' + self.target_distro,
self.builder, # This is an identificative string which will either take the form
] + arguments # 'distribution' or 'distribution-architecture'.
self.chroot_string = None
# Authentication method
self.auth = 'sudo'
# Builder
self.builder = builder
# Ensure that the used builder is installed
paths = set(os.environ['PATH'].split(':'))
paths |= set(('/sbin', '/usr/sbin', '/usr/local/sbin'))
if not any(os.path.exists(os.path.join(p, builder)) for p in paths):
print >> stderr, 'Error: Could not find "%s".' % builder
exit(1)
##############################################################
self.base = os.path.expanduser(os.environ.get('PBUILDFOLDER',
'~/pbuilder/'))
if not os.path.isdir(self.base):
try:
os.makedirs(self.base)
except os.OSError:
print >> stderr, ('Error: Cannot create base directory "%s"'
% self.base)
exit(1)
if 'PBUILDAUTH' in os.environ:
self.auth = os.environ['PBUILDAUTH']
self.system_architecture = ubuntutools.misc.host_architecture()
self.system_distro = ubuntutools.misc.system_distribution()
if not self.system_architecture or not self.system_distro:
exit(1)
self.target_distro = self.system_distro
##############################################################
def set_target_distro(self, distro):
""" pbuilder_dist.set_target_distro(distro) -> None
Check if the given target distribution name is correct, if it
isn't know to the system ask the user for confirmation before
proceeding, and finally either save the value into the appropiate
variable or finalize pbuilder-dist's execution.
"""
if not distro.isalpha():
print >> stderr, ('Error: "%s" is an invalid distribution codename.'
% distro)
exit(1)
if not os.path.isfile(os.path.join('/usr/share/debootstrap/scripts/',
distro)):
if os.path.isdir('/usr/share/debootstrap/scripts/'):
# Debian experimental doesn't have a debootstrap file but
# should work nevertheless.
if distro not in debian_distros:
answer = ask(('Warning: Unknown distribution "%s". Do you '
'want to continue [y/N]? ') % distro)
if answer not in ('y', 'Y'):
exit(0)
else:
print >> stderr, 'Please install package "debootstrap".'
exit(1)
self.target_distro = distro
def set_operation(self, operation):
""" pbuilder_dist.set_operation -> None
Check if the given string is a valid pbuilder operation and
depending on this either save it into the appropiate variable
or finalize pbuilder-dist's execution.
"""
arguments = ('create', 'update', 'build', 'clean', 'login', 'execute')
if operation not in arguments:
if operation.endswith('.dsc'):
if os.path.isfile(operation):
self.operation = 'build'
return [operation]
else:
print >> stderr, ('Error: Could not find file "%s".'
% operation)
exit(1)
else:
print >> stderr, (
'Error: "%s" is not a recognized argument.\n'
'Please use one of these: %s.'
) % (operation, ', '.join(arguments))
exit(1)
else:
self.operation = operation
return []
def get_command(self, remaining_arguments = None):
""" pbuilder_dist.get_command -> string
Generate the pbuilder command which matches the given configuration
and return it as a string.
"""
if not self.build_architecture:
self.chroot_string = self.target_distro
self.build_architecture = self.system_architecture
else:
self.chroot_string = (self.target_distro + '-'
+ self.build_architecture)
prefix = os.path.join(self.base, self.chroot_string)
result = '%s_result/' % prefix
if not self.logfile and self.operation != 'login':
self.logfile = os.path.normpath('%s/last_operation.log' % result)
if not os.path.isdir(result):
try:
os.makedirs(result)
except os.OSError:
print >> stderr, ('Error: Cannot create results directory "%s"'
% result)
exit(1)
if self.builder == 'pbuilder':
base = '--basetgz "%s-base.tgz"' % prefix
elif self.builder == 'cowbuilder':
base = '--basepath "%s-base.cow"' % prefix
else:
print >> stderr, 'Error: Unrecognized builder "%s".' % self.builder
exit(1)
arguments = [
'--%s' % self.operation,
base,
'--distribution', self.target_distro,
'--buildresult', result,
'--aptcache', '/var/cache/apt/archives/',
'--override-config',
]
if self.logfile:
arguments += ['--logfile', self.logfile]
if os.path.exists('/var/cache/archive/'):
arguments += ['--bindmounts', '/var/cache/archive/']
localrepo = '/var/cache/archive/' + self.target_distro
if os.path.exists(localrepo):
arguments += [
'--othermirror ',
'deb file:///var/cache/archive/ %s/' % self.target_distro,
]
if self.target_distro in debian_distros:
arguments += ['--mirror', 'http://ftp.debian.org/debian']
# work around bug #599695
arguments += [
'--debootstrapopts',
'--keyring=/usr/share/keyrings/debian-archive-keyring.gpg',
]
components = 'main'
if self.extra_components:
components += ' contrib non-free'
else:
if self.build_architecture in ('amd64', 'i386'):
arguments += ['--mirror', 'http://archive.ubuntu.com/ubuntu/']
elif (self.build_architecture == 'powerpc'
and self.target_distro == 'dapper'):
arguments += ['--mirror', 'http://archive.ubuntu.com/ubuntu/']
else:
arguments += ['--mirror',
'http://ports.ubuntu.com/ubuntu-ports/']
components = 'main restricted'
if self.extra_components:
components += ' universe multiverse'
arguments += ['--components', components]
if self.build_architecture != self.system_architecture:
arguments += ['--debootstrapopts',
'--arch=' + self.build_architecture]
apt_conf_dir = os.path.join(self.base,
'etc/%s/apt.conf' % self.target_distro)
if os.path.exists(apt_conf_dir):
arguments += ['--aptconfdir', apt_conf_dir]
# Append remaining arguments
if remaining_arguments:
arguments.extend(remaining_arguments)
# Export the distribution and architecture information to the
# environment so that it is accessible to ~/.pbuilderrc (LP: #628933).
return [
self.auth,
'ARCH=' + self.build_architecture,
'DIST=' + self.target_distro,
self.builder,
] + arguments
def ask(question): def ask(question):
""" ask(question) -> string """ ask(question) -> string
Ask the given question and return the answer. Also catch Ask the given question and return the answer. Also catch
KeyboardInterrupt (Ctrl+C) and EOFError (Ctrl+D) exceptions and KeyboardInterrupt (Ctrl+C) and EOFError (Ctrl+D) exceptions and
immediately return None if one of those is found. immediately return None if one of those is found.
""" """
try: try:
answer = raw_input(question) answer = raw_input(question)
except (KeyboardInterrupt, EOFError): except (KeyboardInterrupt, EOFError):
print print
answer = None answer = None
return answer return answer
def help(exit_code = 0): def help(exit_code = 0):
""" help() -> None """ help() -> None
Print a help message for pbuilder-dist, and exit with the given code. Print a help message for pbuilder-dist, and exit with the given code.
""" """
print 'See man pbuilder-dist for more information.' print 'See man pbuilder-dist for more information.'
exit(exit_code) exit(exit_code)
def main(): def main():
""" main() -> None """ main() -> None
This is pbuilder-dist's main function. It creates a pbuilder_dist This is pbuilder-dist's main function. It creates a pbuilder_dist
object, modifies all necessary settings taking data from the object, modifies all necessary settings taking data from the
executable's name and command line options and finally either ends executable's name and command line options and finally either ends
the script and runs pbuilder itself or exists with an error message. the script and runs pbuilder itself or exists with an error message.
""" """
script_name = os.path.basename(argv[0]) script_name = os.path.basename(argv[0])
parts = script_name.split('-') parts = script_name.split('-')
# Copy arguments into another list for save manipulation # Copy arguments into another list for save manipulation
args = argv[1:] args = argv[1:]
if '-' in script_name and (parts[0] != 'pbuilder' and \ if ('-' in script_name and parts[0] not in ('pbuilder', 'cowbuilder')
parts[0] != 'cowbuilder') or len(parts) > 3: or len(parts) > 3):
print >> stderr, 'Error: "%s" is not a valid name for a "pbuilder-dist" executable.' % script_name print >> stderr, ('Error: "%s" is not a valid name for a '
exit(1) '"pbuilder-dist" executable.') % script_name
exit(1)
if len(args) < 1:
print >> stderr, 'Insufficient number of arguments.' if len(args) < 1:
help(1) print >> stderr, 'Insufficient number of arguments.'
help(1)
if args[0] in ('-h', '--help', 'help'):
help(0) if args[0] in ('-h', '--help', 'help'):
help(0)
app = pbuilder_dist(parts[0])
app = pbuilder_dist(parts[0])
if len(parts) > 1 and parts[1] != 'dist' and '.' not in parts[1]:
app.set_target_distro(parts[1]) if len(parts) > 1 and parts[1] != 'dist' and '.' not in parts[1]:
else: app.set_target_distro(parts[1])
app.set_target_distro(args.pop(0)) else:
app.set_target_distro(args.pop(0))
if len(parts) > 2:
requested_arch = parts[2] if len(parts) > 2:
elif len(args) > 0 and args[0] in ("alpha", "amd64", "arm", "armeb", requested_arch = parts[2]
"armel", "i386", "lpia", "m68k", "mips", "mipsel", "powerpc", "ppc64", elif len(args) > 0 and args[0] in (
"sh4", "sh4eb", "sparc", "sparc64"): 'alpha', 'amd64', 'arm', 'armeb', 'armel', 'i386', 'lpia', 'm68k',
requested_arch = args.pop(0) 'mips', 'mipsel', 'powerpc', 'ppc64', 'sh4', 'sh4eb', 'sparc',
else: 'sparc64'):
requested_arch = None requested_arch = args.pop(0)
else:
if requested_arch: requested_arch = None
app.build_architecture = requested_arch
# For some foreign architectures we need to use qemu if requested_arch:
if requested_arch != app.system_architecture and (app.system_architecture, app.build_architecture = requested_arch
requested_arch) not in [("amd64", "i386"), ("amd64", "lpia"), # For some foreign architectures we need to use qemu
("arm", "armel"), ("armel", "arm"), ("i386", "lpia"), ("lpia", "i386"), if (requested_arch != app.system_architecture
("powerpc", "ppc64"), ("ppc64", "powerpc"), ("sparc", "sparc64"), and (app.system_architecture, requested_arch) not in [
("sparc64", "sparc")]: ('amd64', 'i386'), ('amd64', 'lpia'), ('arm', 'armel'),
args.append('--debootstrap qemu-debootstrap') ('armel', 'arm'), ('i386', 'lpia'), ('lpia', 'i386'),
('powerpc', 'ppc64'), ('ppc64', 'powerpc'),
if 'mainonly' in argv or '--main-only' in argv: ('sparc', 'sparc64'), ('sparc64', 'sparc')]):
app.extra_components = False args.append('--debootstrap qemu-debootstrap')
if 'mainonly' in argv:
args.remove('mainonly') if 'mainonly' in argv or '--main-only' in argv:
else: app.extra_components = False
args.remove('--main-only') if 'mainonly' in argv:
args.remove('mainonly')
if len(args) < 1: else:
print >> stderr, 'Insufficient number of arguments.' args.remove('--main-only')
help(1)
if len(args) < 1:
# Parse the operation print >> stderr, 'Insufficient number of arguments.'
args = app.set_operation(args.pop(0)) + args help(1)
if app.operation == 'build' and not '.dsc' in ' '.join(args): # Parse the operation
print >> stderr, 'Error: You have to specify a .dsc file if you want to build.' args = app.set_operation(args.pop(0)) + args
exit(1)
if app.operation == 'build' and not '.dsc' in ' '.join(args):
# Execute the pbuilder command print >> stderr, ('Error: You have to specify a .dsc file if you want '
if not '--debug-echo' in args: 'to build.')
p = subprocess.Popen(app.get_command(args)) exit(1)
exit(p.wait())
else: # Execute the pbuilder command
print app.get_command([arg for arg in args if arg != '--debug-echo']) if not '--debug-echo' in args:
p = subprocess.Popen(app.get_command(args)))
exit(p.wait())
else:
print app.get_command([arg for arg in args if arg != '--debug-echo'])
if __name__ == '__main__': if __name__ == '__main__':
try: try:
main() main()
except KeyboardInterrupt: except KeyboardInterrupt:
print >> stderr, 'Manually aborted.' print >> stderr, 'Manually aborted.'
exit(1) exit(1)