+def call_editor(text="", suffix=".txt"):
+ """run editor and return the result as a string
+
+ @type text: str
+ @param text: initial text
+
+ @type suffix: str
+ @param suffix: extension for temporary file
+
+ @rtype: str
+ @return: string with the edited text
+ """
+ editor = os.environ.get('VISUAL', os.environ.get('EDITOR', 'vi'))
+ tmp = tempfile.NamedTemporaryFile(suffix=suffix, delete=False)
+ try:
+ print >>tmp, text,
+ tmp.close()
+ subprocess.check_call([editor, tmp.name])
+ return open(tmp.name, 'r').read()
+ finally:
+ os.unlink(tmp.name)
+
+################################################################################
+
+def check_reverse_depends(removals, suite, arches=None, session=None, cruft=False):
+ dbsuite = get_suite(suite, session)
+ overridesuite = dbsuite
+ if dbsuite.overridesuite is not None:
+ overridesuite = get_suite(dbsuite.overridesuite, session)
+ dep_problem = 0
+ p2c = {}
+ all_broken = {}
+ if arches:
+ all_arches = set(arches)
+ else:
+ all_arches = set([x.arch_string for x in get_suite_architectures(suite)])
+ all_arches -= set(["source", "all"])
+ metakey_d = get_or_set_metadatakey("Depends", session)
+ metakey_p = get_or_set_metadatakey("Provides", session)
+ params = {
+ 'suite_id': dbsuite.suite_id,
+ 'metakey_d_id': metakey_d.key_id,
+ 'metakey_p_id': metakey_p.key_id,
+ }
+ for architecture in all_arches | set(['all']):
+ deps = {}
+ sources = {}
+ virtual_packages = {}
+ params['arch_id'] = get_architecture(architecture, session).arch_id
+
+ statement = '''
+ SELECT b.id, b.package, s.source, c.name as component,
+ (SELECT bmd.value FROM binaries_metadata bmd WHERE bmd.bin_id = b.id AND bmd.key_id = :metakey_d_id) AS depends,
+ (SELECT bmp.value FROM binaries_metadata bmp WHERE bmp.bin_id = b.id AND bmp.key_id = :metakey_p_id) AS provides
+ FROM binaries b
+ JOIN bin_associations ba ON b.id = ba.bin AND ba.suite = :suite_id
+ JOIN source s ON b.source = s.id
+ JOIN files_archive_map af ON b.file = af.file_id
+ JOIN component c ON af.component_id = c.id
+ WHERE b.architecture = :arch_id'''
+ query = session.query('id', 'package', 'source', 'component', 'depends', 'provides'). \
+ from_statement(statement).params(params)
+ for binary_id, package, source, component, depends, provides in query:
+ sources[package] = source
+ p2c[package] = component
+ if depends is not None:
+ deps[package] = depends
+ # Maintain a counter for each virtual package. If a
+ # Provides: exists, set the counter to 0 and count all
+ # provides by a package not in the list for removal.
+ # If the counter stays 0 at the end, we know that only
+ # the to-be-removed packages provided this virtual
+ # package.
+ if provides is not None:
+ for virtual_pkg in provides.split(","):
+ virtual_pkg = virtual_pkg.strip()
+ if virtual_pkg == package: continue
+ if not virtual_packages.has_key(virtual_pkg):
+ virtual_packages[virtual_pkg] = 0
+ if package not in removals:
+ virtual_packages[virtual_pkg] += 1
+
+ # If a virtual package is only provided by the to-be-removed
+ # packages, treat the virtual package as to-be-removed too.
+ for virtual_pkg in virtual_packages.keys():
+ if virtual_packages[virtual_pkg] == 0:
+ removals.append(virtual_pkg)
+
+ # Check binary dependencies (Depends)
+ for package in deps.keys():
+ if package in removals: continue
+ parsed_dep = []
+ try:
+ parsed_dep += apt_pkg.ParseDepends(deps[package])
+ except ValueError as e:
+ print "Error for package %s: %s" % (package, e)
+ for dep in parsed_dep:
+ # Check for partial breakage. If a package has a ORed
+ # dependency, there is only a dependency problem if all
+ # packages in the ORed depends will be removed.
+ unsat = 0
+ for dep_package, _, _ in dep:
+ if dep_package in removals:
+ unsat += 1
+ if unsat == len(dep):
+ component = p2c[package]
+ source = sources[package]
+ if component != "main":
+ source = "%s/%s" % (source, component)
+ all_broken.setdefault(source, {}).setdefault(package, set()).add(architecture)
+ dep_problem = 1
+
+ if all_broken:
+ if cruft:
+ print " - broken Depends:"
+ else:
+ print "# Broken Depends:"
+ for source, bindict in sorted(all_broken.items()):
+ lines = []
+ for binary, arches in sorted(bindict.items()):
+ if arches == all_arches or 'all' in arches:
+ lines.append(binary)
+ else:
+ lines.append('%s [%s]' % (binary, ' '.join(sorted(arches))))
+ if cruft:
+ print ' %s: %s' % (source, lines[0])
+ else:
+ print '%s: %s' % (source, lines[0])
+ for line in lines[1:]:
+ if cruft:
+ print ' ' + ' ' * (len(source) + 2) + line
+ else:
+ print ' ' * (len(source) + 2) + line
+ if not cruft:
+ print
+
+ # Check source dependencies (Build-Depends and Build-Depends-Indep)
+ all_broken.clear()
+ metakey_bd = get_or_set_metadatakey("Build-Depends", session)
+ metakey_bdi = get_or_set_metadatakey("Build-Depends-Indep", session)
+ params = {
+ 'suite_id': dbsuite.suite_id,
+ 'metakey_ids': (metakey_bd.key_id, metakey_bdi.key_id),
+ }
+ statement = '''
+ SELECT s.id, s.source, string_agg(sm.value, ', ') as build_dep
+ FROM source s
+ JOIN source_metadata sm ON s.id = sm.src_id
+ WHERE s.id in
+ (SELECT source FROM src_associations
+ WHERE suite = :suite_id)
+ AND sm.key_id in :metakey_ids
+ GROUP BY s.id, s.source'''
+ query = session.query('id', 'source', 'build_dep').from_statement(statement). \
+ params(params)
+ for source_id, source, build_dep in query:
+ if source in removals: continue
+ parsed_dep = []
+ if build_dep is not None:
+ # Remove [arch] information since we want to see breakage on all arches
+ build_dep = re_build_dep_arch.sub("", build_dep)
+ try:
+ parsed_dep += apt_pkg.ParseDepends(build_dep)
+ except ValueError as e:
+ print "Error for source %s: %s" % (source, e)
+ for dep in parsed_dep:
+ unsat = 0
+ for dep_package, _, _ in dep:
+ if dep_package in removals:
+ unsat += 1
+ if unsat == len(dep):
+ component, = session.query(Component.component_name) \
+ .join(Component.overrides) \
+ .filter(Override.suite == overridesuite) \
+ .filter(Override.package == re.sub('/(contrib|non-free)$', '', source)) \
+ .join(Override.overridetype).filter(OverrideType.overridetype == 'dsc') \
+ .first()
+ if component != "main":
+ source = "%s/%s" % (source, component)
+ all_broken.setdefault(source, set()).add(pp_deps(dep))
+ dep_problem = 1
+
+ if all_broken:
+ if cruft:
+ print " - broken Build-Depends:"
+ else:
+ print "# Broken Build-Depends:"
+ for source, bdeps in sorted(all_broken.items()):
+ bdeps = sorted(bdeps)
+ if cruft:
+ print ' %s: %s' % (source, bdeps[0])
+ else:
+ print '%s: %s' % (source, bdeps[0])
+ for bdep in bdeps[1:]:
+ if cruft:
+ print ' ' + ' ' * (len(source) + 2) + bdep
+ else:
+ print ' ' * (len(source) + 2) + bdep
+ if not cruft:
+ print