def command(opts, parser, extra_arg_groups=None):
from rez.resolved_context import ResolvedContext
from rez.resolver import ResolverStatus
from rez.package_filter import PackageFilterList, Rule
from rez.utils.formatting import get_epoch_time_from_str
from rez.config import config
import select
import sys
import os
import os.path
command = opts.command
if extra_arg_groups:
if opts.command:
parser.error(
"argument --command: not allowed with arguments after '--'")
command = extra_arg_groups[0] or None
context = None
request = opts.PKG
t = get_epoch_time_from_str(opts.time) if opts.time else None
if opts.paths is None:
pkg_paths = (config.nonlocal_packages_path if opts.no_local else None)
else:
pkg_paths = opts.paths.split(os.pathsep)
pkg_paths = [os.path.expanduser(x) for x in pkg_paths if x]
if opts.input:
if opts.PKG:
parser.error(
"Cannot use --input and provide PKG(s) at the same time")
context = ResolvedContext.load(opts.input)
if context.status != ResolverStatus.solved:
print >> sys.stderr, "cannot rez-env into a failed context"
sys.exit(1)
if opts.patch:
# TODO: patching is lagging behind in options, and needs to be updated
# anyway.
if context is None:
from rez.status import status
context = status.context
if context is None:
print >> sys.stderr, "cannot patch: not in a context"
sys.exit(1)
request = context.get_patched_request(request,
strict=opts.strict,
rank=opts.patch_rank)
context = None
if context is None:
# create package filters
if opts.no_filters:
package_filter = PackageFilterList()
else:
package_filter = PackageFilterList.singleton.copy()
for rule_str in (opts.exclude or []):
rule = Rule.parse_rule(rule_str)
package_filter.add_exclusion(rule)
for rule_str in (opts.include or []):
rule = Rule.parse_rule(rule_str)
package_filter.add_inclusion(rule)
# perform the resolve
context = ResolvedContext(package_requests=request,
timestamp=t,
package_paths=pkg_paths,
building=opts.build,
package_filter=package_filter,
add_implicit_packages=(not opts.no_implicit),
verbosity=opts.verbose,
max_fails=opts.max_fails,
time_limit=opts.time_limit,
caching=(not opts.no_cache))
success = (context.status == ResolverStatus.solved)
if not success:
context.print_info(buf=sys.stderr)
if opts.output:
if opts.output == '-': # print to stdout
context.write_to_buffer(sys.stdout)
else:
context.save(opts.output)
sys.exit(0 if success else 1)
if not success:
sys.exit(1)
# generally shells will behave as though the '-s' flag was not present when
# no stdin is available. So here we replicate this behaviour.
if opts.stdin and not select.select([sys.stdin], [], [], 0.0)[0]:
opts.stdin = False
quiet = opts.quiet or bool(command)
returncode, _, _ = context.execute_shell(
shell=opts.shell,
rcfile=opts.rcfile,
norc=opts.norc,
command=command,
stdin=opts.stdin,
quiet=quiet,
start_new_session=opts.new_session,
detached=opts.detached,
pre_command=opts.pre_command,
block=True)
sys.exit(returncode)
def __init__(self,
context,
package_requests,
package_paths,
package_filter=None,
package_orderers=None,
timestamp=0,
callback=None,
building=False,
verbosity=False,
buf=None,
package_load_callback=None,
caching=True,
suppress_passive=False,
print_stats=False):
"""Create a Resolver.
Args:
package_requests: List of Requirement objects representing the
request.
package_paths: List of paths to search for pkgs.
package_filter (`PackageFilterList`): Package filter.
package_orderers (list of `PackageOrder`): Custom package ordering.
callback: See `Solver`.
package_load_callback: If not None, this callable will be called
prior to each package being loaded. It is passed a single
`Package` object.
building: True if we're resolving for a build.
caching: If True, cache(s) may be used to speed the resolve. If
False, caches will not be used.
print_stats (bool): If true, print advanced solver stats at the end.
"""
self.context = context
self.package_requests = package_requests
self.package_paths = package_paths
self.timestamp = timestamp
self.callback = callback
self.package_orderers = package_orderers
self.package_load_callback = package_load_callback
self.building = building
self.verbosity = verbosity
self.caching = caching
self.buf = buf
self.suppress_passive = suppress_passive
self.print_stats = print_stats
# store hash of package orderers. This is used in the memcached key
if package_orderers:
sha1s = ''.join(x.sha1 for x in package_orderers)
self.package_orderers_hash = sha1(sha1s.encode("utf8")).hexdigest()
else:
self.package_orderers_hash = ''
# store hash of pre-timestamp-combined package filter. This is used in
# the memcached key
if package_filter:
self.package_filter_hash = package_filter.sha1
else:
self.package_filter_hash = ''
# combine timestamp and package filter into single filter
if self.timestamp:
if package_filter:
self.package_filter = package_filter.copy()
else:
self.package_filter = PackageFilterList()
rule = TimestampRule.after(self.timestamp)
self.package_filter.add_exclusion(rule)
else:
self.package_filter = package_filter
self.status_ = ResolverStatus.pending
self.resolved_packages_ = None
self.resolved_ephemerals_ = None
self.failure_description = None
self.graph_ = None
self.from_cache = False
self.memcached_servers = config.memcached_uri if config.resolve_caching else None
self.solve_time = 0.0 # time spent solving
self.load_time = 0.0 # time spent loading package resources
self._print = config.debug_printer("resolve_memcache")
