def get_reqs(self, req):
"""
Returns a dictionary mapping all requirements found recursively
to the distribution which requires it.
"""
# the root requirement (in the argument) itself maps to recursion
# level 0 and a non-existent distribution (because the required by
# the argument of this function and not any other distribution)
assert req.strictness == 3, req
reqs1 = {req: (0, 'ROOT')}
# add all requirements for the root requirement
self.add_reqs(reqs1, req)
if self.verbose:
print "Requirements: (-level, strictness)"
for r in sorted(reqs1):
print '\t%-33r %3i %3i' % (r, -reqs1[r][0], r.strictness)
reqs2 = {}
for name in set(r.name for r in reqs1):
# get all requirements for the name
rs = []
for r in filter_name(reqs1, name):
# append a tuple with:
# * tuple(negative recursion level, strictness)
# * requirement itself
# * distribution requiring it
rs.append(((-reqs1[r][0], r.strictness), r, reqs1[r][1]))
rs.sort()
r, d = rs[-1][1:]
reqs2[r] = d
return reqs2
def get_reqs(self, req):
"""
Returns a dictionary mapping all requirements found recursively
to the distribution which requires it.
"""
# the root requirement (in the argument) itself maps to recursion
# level 0 and a non-existent distribution (because the required by
# the argument of this function and not any other distribution)
assert req.strictness == 3, req
reqs1 = {req: (0, 'ROOT')}
# add all requirements for the root requirement
self.add_reqs(reqs1, req)
if self.verbose:
print "Requirements: (-level, strictness)"
for r in sorted(reqs1):
print '\t%-33r %3i %3i' % (r, -reqs1[r][0], r.strictness)
reqs2 = {}
for name in set(r.name for r in reqs1):
# get all requirements for the name
rs = []
for r in filter_name(reqs1, name):
# append a tuple with:
# * tuple(negative recursion level, strictness)
# * requirement itself
# * distribution requiring it
rs.append(((-reqs1[r][0], r.strictness), r, reqs1[r][1]))
rs.sort()
r, d = rs[-1][1:]
reqs2[r] = d
return reqs2
def select_new_reqs(self, reqs, dist):
"""
Selects new requirements, which are listed as dependencies in the
distribution 'dist', and are not already in the requirements 'reqs',
unless the distribution requires something more strict.
"""
result = set()
for r in self.reqs_dist(dist):
# from all the reqs (we already have collected) filter the
# ones with the same project name
rs2 = filter_name(reqs, r.name)
if rs2:
# if there are requirements for an existing project name,
# only add if it is more strict
for r2 in rs2:
if r2.strictness > r.strictness:
result.add(r2)
else:
# otherwise, just add it, there is no requirement for this
# project yet
result.add(r)
return result
def select_new_reqs(self, reqs, dist):
"""
Selects new requirements, which are listed as dependencies in the
distribution 'dist', and are not already in the requirements 'reqs',
unless the distribution requires something more strict.
"""
result = set()
for r in self.reqs_dist(dist):
# from all the reqs (we already have collected) filter the
# ones with the same project name
rs2 = filter_name(reqs, r.name)
if rs2:
# if there are requirements for an existing project name,
# only add if it is more strict
for r2 in rs2:
if r2.strictness > r.strictness:
result.add(r2)
else:
# otherwise, just add it, there is no requirement for this
# project yet
result.add(r)
return result
