/usr/lib/python2.7/dist-packages/rosdistro/aptdistro.py is in python-rosdistro 0.4.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | try:
from urllib2 import urlopen
except ImportError:
from urllib.request import urlopen
class AptDistro:
def __init__(self, ubuntudistro, arch, shadow=True):
if shadow:
url = 'http://packages.ros.org/ros-shadow-fixed/ubuntu/dists/{0}/main/binary-{1}/Packages'
url = urlopen(url.format(ubuntudistro, arch))
else:
url = 'http://packages.ros.org/ros/ubuntu/dists/{0}/main/binary-{1}/Packages'
url = urlopen(url.format(ubuntudistro, arch))
self.dep = {}
package = None
for l in url.read().split('\n'):
if l.startswith('Package: '):
package = l[len('Package: '):]
if l.startswith('Depends: '):
if not package:
raise RuntimeError("Found 'Depends: ' but not 'Package: ' while parsing the apt repository index file")
self.dep[package] = [d.split(' ')[0] for d in (l[len('Depends: '):].split(', '))]
package = None
def has_package(self, package):
return package in self.dep
def depends1(self, package):
return self.depends(package, one=True)
def depends(self, package, res=[], one=False):
if package in self.dep:
for d in self.dep[package]:
if not d in res:
res.append(d)
if not one:
self.depends(d, res, one)
return res
def depends_on1(self, package):
return self.depends_on(package, one=True)
def depends_on(self, package, res=[], one=False):
for p, dep in self.dep.iteritems():
if package in dep:
if not p in res:
res.append(p)
if not one:
self.depends_on(p, res, one)
return res
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