def solve(specs: List[str], r: Resolve) -> Union[bool, Iterable[str]]:
features = set() # type: Set
for spec in specs:
if conda.config.platform == 'win32' and spec == 'python':
continue
# XXX: This does not work when a spec only contains the name,
# and different versions of the package have different features.
ms = MatchSpec(spec)
for pkg in r.get_pkgs(ms, max_only=False):
fn = pkg.fn
features.update(r.track_features(fn))
for spec in specs:
for pkg in r.get_pkgs(MatchSpec(spec), max_only=False):
fn = pkg.fn
r.update_with_features(fn, features)
print("Solving package specifications: ", end='')
try:
return r.explicit(specs) or r.solve2(specs,
features,
installed=(),
minimal_hint=False,
guess=False,
unsat_only=True)
except RuntimeError:
print('\n')
return False
def install_actions(prefix, index, specs, force=False, only_names=None):
r = Resolve(index)
linked = install.linked(prefix)
if is_root_prefix(prefix):
specs.append('conda')
add_defaults_to_specs(r, linked, specs)
must_have = {}
for fn in r.solve(specs, [d + '.tar.bz2' for d in linked],
config.track_features):
dist = fn[:-8]
name = install.name_dist(dist)
if only_names and name not in only_names:
continue
must_have[name] = dist
if is_root_prefix(prefix):
if not (force or only_names or r.explicit(specs)):
# ensure conda is in root environment
assert 'conda' in must_have
if install.on_win:
for name in install.win_ignore_root:
if name in must_have:
del must_have[name]
for name in config.foreign:
if name in must_have:
del must_have[name]
else:
# discard conda from other environments
if 'conda' in must_have:
sys.exit("Error: 'conda' can only be installed into "
"root environment")
smh = sorted(must_have.values())
if force:
actions = force_linked_actions(smh, index, prefix)
else:
actions = ensure_linked_actions(smh, prefix)
for dist in sorted(linked):
name = install.name_dist(dist)
if name in must_have and dist != must_have[name]:
actions[UNLINK].append(dist)
return actions
def install_actions(prefix, index, specs, force=False, only_names=None):
r = Resolve(index)
linked = install.linked(prefix)
if is_root_prefix(prefix):
specs.append('conda')
add_defaults_to_specs(r, linked, specs)
must_have = {}
for fn in r.solve(specs, [d + '.tar.bz2' for d in linked],
config.track_features):
dist = fn[:-8]
name = install.name_dist(dist)
if only_names and name not in only_names:
continue
must_have[name] = dist
if is_root_prefix(prefix):
if not (force or only_names or r.explicit(specs)):
# ensure conda is in root environment
assert 'conda' in must_have
if install.on_win:
for name in install.win_ignore_root:
if name in must_have:
del must_have[name]
for name in config.foreign:
if name in must_have:
del must_have[name]
else:
# discard conda from other environments
if 'conda' in must_have:
sys.exit("Error: 'conda' can only be installed into "
"root environment")
smh = sorted(must_have.values())
if force:
actions = force_linked_actions(smh, index, prefix)
else:
actions = ensure_linked_actions(smh, prefix)
for dist in sorted(linked):
name = install.name_dist(dist)
if name in must_have and dist != must_have[name]:
actions[UNLINK].append(dist)
return actions
def solve(specs: List[str], r: Resolve) -> Union[bool, Iterable[str]]:
features = set() # type: Set
for spec in specs:
if conda.config.platform == 'win32' and spec == 'python':
continue
# XXX: This does not work when a spec only contains the name,
# and different versions of the package have different features.
ms = MatchSpec(spec)
for pkg in r.get_pkgs(ms, max_only=False):
fn = pkg.fn
features.update(r.track_features(fn))
for spec in specs:
for pkg in r.get_pkgs(MatchSpec(spec), max_only=False):
fn = pkg.fn
r.update_with_features(fn, features)
print("Solving package specifications: ", end='')
try:
return r.explicit(specs) or r.solve2(specs, features,
installed=(), minimal_hint=False, guess=False, unsat_only=True)
except RuntimeError:
print('\n')
return False
