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]):
dist = fn[:-8]
name = 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:
# ensure conda is in root environment
assert 'conda' in must_have
else:
# discard conda from other environments
if 'conda' in must_have:
del must_have['conda']
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 = name_dist(dist)
if name in must_have and dist != must_have[name]:
actions[UNLINK].append(dist)
return actions
def add_defaults_to_specs(r, linked, specs):
if r.explicit(specs):
return
log.debug('H0 specs=%r' % specs)
names_linked = {name_dist(dist): dist for dist in linked}
names_ms = {MatchSpec(s).name: MatchSpec(s) for s in specs}
for name, def_ver in [('python', config.default_python),
('numpy', config.default_numpy)]:
ms = names_ms.get(name)
if ms and ms.strictness > 1:
# if any of the specifications mention the Python/Numpy version,
# we don't need to add the default spec
log.debug('H1 %s' % name)
continue
any_depends_on = any(ms2.name == name
for spec in specs
for fn in r.get_max_dists(MatchSpec(spec))
for ms2 in r.ms_depends(fn))
log.debug('H2 %s %s' % (name, any_depends_on))
if not any_depends_on and name not in names_ms:
# if nothing depends on Python/Numpy AND the Python/Numpy is not
# specified, we don't need to add the default spec
log.debug('H2A %s' % name)
continue
if (any_depends_on and len(specs) >= 1 and
MatchSpec(specs[0]).strictness == 3):
# if something depends on Python/Numpy, but the spec is very
# explicit, we also don't need to add the default spec
log.debug('H2B %s' % name)
continue
if name in names_linked:
# if Python/Numpy is already linked, we also don't need to add
# the default
log.debug('H3 %s' % name)
specs.append(dist2spec3v(names_linked[name]))
continue
specs.append('%s %s*' % (name, def_ver))
log.debug('HF specs=%r' % specs)
def execute_plan(plan, index=None, verbose=False):
if verbose:
from console import setup_handlers
setup_handlers()
progress_cmds = set([EXTRACT, RM_EXTRACTED, LINK, UNLINK])
prefix = config.root_dir
i = None
for cmd, arg in cmds_from_plan(plan):
if i is not None and cmd in progress_cmds:
i += 1
getLogger('progress.update').info((name_dist(arg), i))
if cmd == PREFIX:
prefix = arg
elif cmd == PRINT:
getLogger('print').info(arg)
elif cmd == FETCH:
fetch(index, arg)
elif cmd == PROGRESS:
i = 0
maxval = int(arg)
getLogger('progress.start').info(maxval)
elif cmd == EXTRACT:
install.extract(config.pkgs_dir, arg)
elif cmd == RM_EXTRACTED:
install.rm_extracted(config.pkgs_dir, arg)
elif cmd == RM_FETCHED:
install.rm_fetched(config.pkgs_dir, arg)
elif cmd == LINK:
install.link(config.pkgs_dir, prefix, arg)
elif cmd == UNLINK:
install.unlink(prefix, arg)
else:
raise Exception("Did not expect command: %r" % cmd)
if i is not None and cmd in progress_cmds and maxval == i:
i = None
getLogger('progress.stop').info(None)
