def ensure_linked_actions(dists, prefix):
actions = defaultdict(list)
actions[PREFIX] = prefix
for dist in dists:
if install.is_linked(prefix, dist):
continue
actions[LINK].append(dist)
if install.is_extracted(config.pkgs_dir, dist):
continue
actions[EXTRACT].append(dist)
if install.is_fetched(config.pkgs_dir, dist):
continue
actions[FETCH].append(dist)
return actions
def app_info_packages(fn):
"""
given the filename of a package, return which packages (and their sizes)
still need to be downloaded, in order to install the package. That is,
the package itself and it's dependencies.
Returns a list of tuples (pkg_name, pkg_version, size,
fetched? True or False).
"""
from resolve import Resolve
index = get_index()
r = Resolve(index)
res = []
for fn2 in r.solve([fn2spec(fn)]):
info = index[fn2]
res.append((info['name'], info['version'], info['size'],
install.is_fetched(config.pkgs_dir, fn2[:-8])))
return res
