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Make "affected" a set based on the usage of it

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"affected" is not allowed to contain duplicates.  Since the current
method of removing any such duplicates is

  affected = list(set(affected))

then the order of affected is not important.

As a side effect, make get_reverse_tree return a set instead of a
list as its return value is always inserted into affected.

Signed-off-by: Niels Thykier <niels@thykier.net>
This commit is contained in:
Niels Thykier 2011-12-29 14:30:51 +01:00
parent 4febf18aba
commit 1f87322d5a
1 changed files with 12 additions and 17 deletions
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29
britney.py
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@ -1771,12 +1771,12 @@ class Britney:
them so it will be possible to revert them.
The method returns a list of the package name, the suite where the
package comes from, the list of packages affected by the change and
package comes from, the set of packages affected by the change and
the dictionary undo which can be used to rollback the changes.
"""
undo = {'binaries': {}, 'sources': {}, 'virtual': {}, 'nvirtual': []}
affected = []
affected = set()
# local copies for better performances
sources = self.sources
@ -1836,9 +1836,8 @@ class Britney:
# save the old binary for undo
undo['binaries'][p] = binaries[parch][0][binary]
# all the reverse dependencies are affected by the change
affected.extend( [ (x, parch) for x in \
affected.update( [ (x, parch) for x in \
self.get_reverse_tree(binary, parch, 'testing') ] )
affected = list(set(affected))
# remove the provided virtual packages
for j in binaries[parch][0][binary][PROVIDES]:
key = j + "/" + parch
@ -1862,9 +1861,8 @@ class Britney:
# updates but not supported as a manual hint
elif item.package in binaries[item.architecture][0]:
undo['binaries'][item.package + "/" + item.architecture] = binaries[item.architecture][0][item.package]
affected.extend( [ (x, item.architecture) for x in \
affected.update( [ (x, item.architecture) for x in \
self.get_reverse_tree(item.package, item.architecture, 'testing') ] )
affected = list(set(affected))
del binaries[item.architecture][0][item.package]
self.systems[item.architecture].remove_binary(item.package)
@ -1876,22 +1874,21 @@ class Britney:
if item.architecture not in ['source', parch]: continue
key = (binary, parch)
# obviously, added/modified packages are affected
if key not in affected: affected.append(key)
if key not in affected: affected.add(key)
# if the binary already exists (built from another source)
if binary in binaries[parch][0]:
# save the old binary package
undo['binaries'][p] = binaries[parch][0][binary]
# all the reverse dependencies are affected by the change
affected.extend( [ (x, parch) for x in \
affected.update( [ (x, parch) for x in \
self.get_reverse_tree(binary, parch, 'testing') ] )
affected = list(set(affected))
# all the reverse conflicts and their dependency tree are affected by the change
for j in binaries[parch][0][binary][RCONFLICTS]:
key = (j, parch)
if key not in affected: affected.append(key)
if key not in affected: affected.add(key)
for p in self.get_full_tree(j, parch, 'testing'):
key = (p, parch)
if key not in affected: affected.append(key)
if key not in affected: affected.add(key)
self.systems[parch].remove_binary(binary)
else:
# if the binary was previously built by a different
@ -1905,10 +1902,9 @@ class Britney:
if p in tundo['binaries']:
for rdep in tundo['binaries'][p][RDEPENDS]:
if rdep in binaries[parch][0] and rdep not in source[BINARIES]:
affected.append( (rdep, parch) )
affected.extend( [ (x, parch) for x in \
affected.add( (rdep, parch) )
affected.update( [ (x, parch) for x in \
self.get_reverse_tree(rdep, parch, 'testing') ] )
affected = list(set(affected))
# add/update the binary package
binaries[parch][0][binary] = self.binaries[item.suite][parch][0][binary]
self.systems[parch].add_binary(binary, binaries[parch][0][binary][:PROVIDES] + \
@ -1923,9 +1919,8 @@ class Britney:
undo['virtual'][key] = binaries[parch][1][j][:]
binaries[parch][1][j].append(binary)
# all the reverse dependencies are affected by the change
affected.extend( [ (x, parch) for x in \
affected.update( [ (x, parch) for x in \
self.get_reverse_tree(binary, parch, 'testing') ] )
affected = list(set(affected))
# register reverse dependencies and conflicts for the new binary packages
for p in source[BINARIES]:
@ -1956,7 +1951,7 @@ class Britney:
# in the process
rev_deps = set([ package for sublist in new_rev_deps \
for package in sublist if package not in seen ])
return list(seen)
return seen
def get_full_tree(self, pkg, arch, suite):
"""Calculate the full dependency tree for the given package