def remove(A):
"""remove set A of packages from system (A is a list of package names)"""
# filter packages that are not installed
Ap = []
for x in A:
if ctx.installdb.is_installed(x):
Ap.append(x)
else:
ctx.ui.info(_('Package %s does not exist. Cannot remove.') % x)
A = Ap
if len(A)==0:
ctx.ui.info(_('No packages to remove.'))
return True
# try to construct a pisi graph of packages to
# install / reinstall
G_f = pgraph.PGraph(packagedb) # construct G_f
# find the (install closure) graph of G_f by package
# set A using packagedb
#print A
for x in A:
G_f.add_package(x)
B = A
#state = {}
while len(B) > 0:
Bp = set()
for x in B:
pkg = packagedb.get_package(x)
#print 'processing', pkg.name
rev_deps = packagedb.get_rev_deps(x)
for (rev_dep, depinfo) in rev_deps:
#print 'checking ', rev_dep
# we don't deal with unsatisfied dependencies
if dependency.installed_satisfies_dep(depinfo):
if not rev_dep in G_f.vertices():
Bp.add(rev_dep)
G_f.add_plain_dep(rev_dep, x)
B = Bp
#G_f.write_graphviz(sys.stdout)
order = G_f.topological_sort()
#FIXME: do something more informative here
#print order
for x in order:
if ctx.installdb.is_installed(x):
operations.remove_single(x)
else:
ctx.ui.info(_('Package %s is not installed. Cannot remove.') % x)
return True # everything went OK :)
def reinstall(self):
"check reinstall, confirm action, and remove package if reinstall"
pkg = self.pkginfo
if ctx.installdb.is_installed(pkg.name): # is this a reinstallation?
(iversion, irelease, ibuild) = ctx.installdb.get_version(pkg.name)
# determine if same version
same_ver = False
ignore_build = ctx.config.options and ctx.config.options.ignore_build_no
if (not ibuild) or (not pkg.build) or ignore_build:
# we don't look at builds to compare two package versions
if pkg.version == iversion and pkg.release == irelease:
same_ver = True
else:
if pkg.build == ibuild:
same_ver = True
if same_ver:
if self.ask_reinstall:
if not ctx.ui.confirm('Re-install same version package?'):
raise InstallError('Package re-install declined')
else:
upgrade = False
# is this an upgrade?
# determine and report the kind of upgrade: version, release, build
if pkg.version > iversion:
ctx.ui.info('Upgrading to new upstream version')
upgrade = True
elif pkg.release > irelease:
ctx.ui.info('Upgrading to new distribution release')
upgrade = True
elif ((not ignore_build) and ibuild and pkg.build
and pkg.build > ibuild):
ctx.ui.info('Upgrading to new distribution build')
upgrade = True
# is this a downgrade? confirm this action.
if self.ask_reinstall and (not upgrade):
if pkg.version < iversion:
x = 'Downgrade to old upstream version?'
elif pkg.release < irelease:
x = 'Downgrade to old distribution release?'
else:
x = 'Downgrade to old distribution build?'
if not ctx.ui.confirm(x):
raise InstallError('Package downgrade declined')
# remove old package then
operations.remove_single(pkg.name)
