def needed_by(self, iid):
try:
from pyinstl import installItemGraph
InstallItem.begin_get_for_all_oses()
graph = installItemGraph.create_dependencies_graph(self.install_definitions_index)
needed_by_list = installItemGraph.find_needed_by(graph, iid)
InstallItem.reset_get_for_all_oses()
return needed_by_list
except ImportError: # no installItemGraph, no worry
print("Could not load installItemGraph")
return None
def needs(self, iid, out_list):
""" return all items that depend on iid """
if iid not in self.install_definitions_index:
raise KeyError(iid+" is not in index")
InstallItem.begin_get_for_all_oses()
with self.install_definitions_index[iid]:
for dep in var_list.resolve_var_to_list("iid_depend_list"):
if dep in self.install_definitions_index:
out_list.append(dep)
self.needs(dep, out_list)
else:
out_list.append(dep+"(missing)")
InstallItem.reset_get_for_all_oses()
