def gem(b):
logging.info('searching for Ruby gems')
# Precompile a pattern for extracting the version of Ruby that was used
# to install the gem.
pattern = re.compile(r'gems/([^/]+)/gems')
# Look for gems in all the typical places. This is easier than looking
# for `gem` commands, which may or may not be on `PATH`.
for globname in ('/usr/lib/ruby/gems/*/gems',
'/usr/local/lib/ruby/gems/*/gems',
'/var/lib/gems/*/gems'):
for dirname in glob.glob(globname):
# The `ruby1.9.1` (really 1.9.2) package on Maverick begins
# including RubyGems in the `ruby1.9.1` package and marks the
# `rubygems1.9.1` package as virtual. So for Maverick and
# newer, the manager is actually `ruby1.9.1`.
match = pattern.search(dirname)
if blueprint.is_rpmpkgmgr():
manager = 'rubygems'
else:
if '1.9.1' == match.group(1) and blueprint.rubygems_virtual():
manager = 'ruby%s' % (match.group(1))
else:
manager = 'rubygems%s' % (match.group(1))
for entry in os.listdir(dirname):
package, version = entry.rsplit('-', 1)
b.packages[manager][package].append(version)
def _dpkg_query_S(pathname):
"""
Return a list of package names that contain `pathname` or `[]`. This
really can be a list thanks to `dpkg-divert`(1).
"""
if blueprint.is_rpmpkgmgr():
p = subprocess.Popen(['rpm', '-qf', '--qf', '%{name}', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return []
packages = []
for line in stdout.splitlines():
if line.startswith('diversion '):
continue
try:
p, _ = line.split(':', 1)
packages.extend([package.strip() for package in p.split(',')])
except ValueError:
pass
return packages
try:
p = subprocess.Popen(['dpkg-query', '-S', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
except OSError:
return []
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return []
packages = []
for line in stdout.splitlines():
if line.startswith('diversion '):
continue
try:
p, _ = line.split(':', 1)
packages.extend([package.strip() for package in p.split(',')])
except ValueError:
pass
return packages
def _dpkg_query_S(pathname):
"""
Return a list of package names that contain `pathname` or `[]`. This
really can be a list thanks to `dpkg-divert`(1).
"""
if blueprint.is_rpmpkgmgr():
p = subprocess.Popen(['rpm', '-qf', '--qf', '%{name}', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return []
packages = []
for line in stdout.splitlines():
if line.startswith('diversion '):
continue
try:
p, _ = line.split(':', 1)
packages.extend([package.strip() for package in p.split(',')])
except ValueError:
pass
return packages
try:
p = subprocess.Popen(['dpkg-query', '-S', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
except OSError:
return []
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return []
packages = []
for line in stdout.splitlines():
if line.startswith('diversion '):
continue
try:
p, _ = line.split(':', 1)
packages.extend([package.strip() for package in p.split(',')])
except ValueError:
pass
return packages
def _rpm_modified(package, pathname):
"""
Determine if a particular file in a package has been modified
"""
if not blueprint.is_rpmpkgmgr():
return false
if not hasattr(_rpm_modified, '_cache'):
_rpm_modified._cache = {}
if package not in _rpm_modified._cache:
p = subprocess.Popen(['/bin/rpm', '-Vf', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
_rpm_modified._cache[package] = stdout
result = _rpm_modified._cache[package].find(pathname) > -1
return result
def _rpm_modified(package, pathname):
"""
Determine if a particular file in a package has been modified
"""
if not blueprint.is_rpmpkgmgr():
return false
if not hasattr(_rpm_modified, '_cache'):
_rpm_modified._cache = {}
if package not in _rpm_modified._cache:
p = subprocess.Popen(['/bin/rpm', '-Vf', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
_rpm_modified._cache[package] = stdout
result = _rpm_modified._cache[package].find(pathname) > -1
return result
def _dpkg_md5sum(package, pathname):
"""
Find the MD5 sum of the packaged version of pathname or `None` if the
`pathname` does not come from a Debian package.
"""
if blueprint.is_rpmpkgmgr():
return None
try:
for line in open('/var/lib/dpkg/info/%s.md5sums' % (package)):
if line.endswith('%s\n' % (pathname[1:])):
return line[0:32]
except IOError:
pass
try:
for line in open('/var/lib/dpkg/status'):
if line.startswith(' %s ' % (pathname)):
return line[-33:-1]
except IOError:
pass
return None
def _dpkg_md5sum(package, pathname):
"""
Find the MD5 sum of the packaged version of pathname or `None` if the
`pathname` does not come from a Debian package.
"""
if blueprint.is_rpmpkgmgr():
return None
try:
for line in open('/var/lib/dpkg/info/%s.md5sums' % (package)):
if line.endswith('%s\n' % (pathname[1:])):
return line[0:32]
except IOError:
pass
try:
for line in open('/var/lib/dpkg/status'):
if line.startswith(' %s ' % (pathname)):
return line[-33:-1]
except IOError:
pass
return None
def _dpkg_query_S(pathname):
"""
Return the name of the package that contains `pathname` or `None`.
"""
if blueprint.is_rpmpkgmgr():
p = subprocess.Popen(['rpm', '-qf', '--qf', '%{name}', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return None
package = stdout
return package
p = subprocess.Popen(['dpkg-query', '-S', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return None
package, _ = stdout.split(':',1)
return package
def _dpkg_query_S(pathname):
"""
Return the name of the package that contains `pathname` or `None`.
"""
if blueprint.is_rpmpkgmgr():
p = subprocess.Popen(['rpm', '-qf', '--qf', '%{name}', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return None
package = stdout
return package
p = subprocess.Popen(['dpkg-query', '-S', pathname],
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if 0 != p.returncode:
# If `pathname` isn't in a package but is a symbolic link, see if
# the symbolic link is in a package. `postinst` programs commonly
# display this pattern.
try:
return _dpkg_query_S(os.readlink(pathname))
except OSError:
return None
package, _ = stdout.split(':', 1)
return package
