def test_simple_dependency(self):
# Given
mkl = self.package_factory(u"mkl 10.3-1")
libgfortran = self.package_factory(u"libgfortran 3.0.0-2")
numpy = self.package_factory(
u"numpy 1.9.2-1; depends (mkl == 10.3-1, libgfortran ^= 3.0.0)"
)
r_operations = [
InstallOperation(mkl),
InstallOperation(libgfortran),
InstallOperation(numpy),
]
self.repository.add_package(mkl)
self.repository.add_package(libgfortran)
self.repository.add_package(numpy)
request = Request()
request.install(R("numpy"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_upgrade_fail(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
scipy_0_17_1 = P(u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
scipy_0_17_1
])
self.installed_repository.update([mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
r_hint_pretty_string = textwrap.dedent(u"""\
The following jobs are conflicting:
install mkl == 2017.0.1-2
install numpy == 1.10.4-1"""
)
# When/Then
request = Request()
request.upgrade()
with self.assertRaises(SatisfiabilityErrorWithHint) as ctx:
self.resolve_with_hint(request)
self.assertMultiLineEqual(
ctx.exception.hint_pretty_string, r_hint_pretty_string)
def test_upgrade_simple(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
numpy_1_11_3 = P(u"numpy 1.11.3-1; depends (mkl ^= 2017.0.1)")
scipy_0_17_1 = P(u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
scipy_0_18_1 = P(u"scipy 0.18.1-1; depends (mkl ^= 2017.0.1, numpy ^= 1.11.3)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
numpy_1_11_3, scipy_0_17_1, scipy_0_18_1
])
self.installed_repository.update([mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
r_operations = [
RemoveOperation(scipy_0_17_1),
RemoveOperation(numpy_1_10_4),
RemoveOperation(mkl_11_3_1),
InstallOperation(mkl_2017_0_1_2),
InstallOperation(numpy_1_11_3),
InstallOperation(scipy_0_18_1),
]
# When
request = Request()
request.upgrade()
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_upgrade_no_candidate(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
scipy_0_17_1 = P(
u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
gnureadline_6_3 = P(u"gnureadline 6.3-1")
# gnureadline is not available in the remote repository
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
scipy_0_17_1
])
self.installed_repository.update(
[mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
self.installed_repository.update([gnureadline_6_3])
# When/Then
request = Request()
request.upgrade()
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def test_upgrade_fail(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
scipy_0_17_1 = P(
u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
scipy_0_17_1
])
self.installed_repository.update(
[mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
r_hint_pretty_string = textwrap.dedent(u"""\
The following jobs are conflicting:
install mkl == 2017.0.1-2
install numpy == 1.10.4-1""")
# When/Then
request = Request()
request.upgrade()
with self.assertRaises(SatisfiabilityErrorWithHint) as ctx:
self.resolve_with_hint(request)
self.assertMultiLineEqual(ctx.exception.hint_pretty_string,
r_hint_pretty_string)
def requirements_are_satisfiable(packages, requirements, modifiers=None):
""" Determine if the `requirements` can be satisfied together.
Parameters
----------
packages : iterable of PackageMetadata
The packages available to draw from when satisfying requirements.
requirements : list of Requirement
The requirements used to identify relevent packages.
modifiers : ConstraintModifiers, optional
If not None, modify requirements before resolving packages.
Returns
-------
bool
Return True if the `requirements` can be satisfied by the `packages`.
"""
modifiers = modifiers or ConstraintModifiers()
Result = collections.namedtuple("Result", "is_satisfiable message")
request = Request(modifiers=modifiers)
for requirement in requirements:
request.install(requirement)
repositories = (Repository(packages),)
pool = Pool(repositories, modifiers=modifiers)
try:
DependencySolver(pool, repositories, []).solve(request)
return Result(is_satisfiable=True, message="")
except SatisfiabilityError as e:
return Result(
is_satisfiable=False, message=e.unsat.to_string(pool=pool)
)
def test_simple_dependency(self):
# Given
mkl = self.package_factory(u"mkl 10.3-1")
libgfortran = self.package_factory(u"libgfortran 3.0.0-2")
numpy = self.package_factory(
u"numpy 1.9.2-1; depends (mkl == 10.3-1, libgfortran ^= 3.0.0)")
r_operations = [
# libgfortran sorts before mkl
InstallOperation(libgfortran),
InstallOperation(mkl),
InstallOperation(numpy),
]
self.repository.add_package(mkl)
self.repository.add_package(libgfortran)
self.repository.add_package(numpy)
request = Request()
request.install(R("numpy"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_up_to_date_package_choices(self):
# Given
packages = u"""
envisage 4.7.2-1; depends (apptools ^= 4.4.0, traits ^= 5.1.1)
apptools 4.4.0-12; depends (traitsui ^= 6.0.0)
apptools 4.4.0-14; depends (traitsui ^= 6.1.1)
traitsui 6.0.0-3; depends (traits ^= 5.1.0)
traitsui 6.0.0-4; depends (traits ^= 5.1.1)
traitsui 6.1.1-1; depends (traits ^= 5.1.1)
traits 5.1.0-1
traits 5.1.1-1
"""
for package in packages.strip().splitlines():
self.repository.add_package(P(package.strip()))
# When
request = Request()
request.install(R("envisage"))
transaction = self.resolve(request)
packages = {
operation.package.name: str(operation.package.version)
for operation in transaction.operations
}
# Then
expected_packages = {
"traits": "5.1.1-1",
"traitsui": "6.1.1-1",
"apptools": "4.4.0-14",
"envisage": "4.7.2-1",
}
self.assertEqual(packages, expected_packages)
def test_direct_dependency_conflict(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
numpy_1_11_3 = P(u"numpy 1.11.3-1; depends (mkl ^= 2017.0.1)")
scipy_0_18_1 = P(u"scipy 0.18.1-1; depends (mkl ^= 2017.0.1, numpy ^= 1.11.3)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, numpy_1_11_3, scipy_0_18_1,
])
request = Request()
request.install(R(u"scipy >= 0.18.0"))
request.install(R(u"numpy >= 1.10.0"))
request.install(R(u"mkl < 12")) # MKL < 12 conflicts with scipy >= 0.18.0
r_hint_pretty_string = textwrap.dedent(u"""\
The following jobs are conflicting:
install numpy >= 1.10.0-0
install mkl < 12-0"""
)
# When/Then
with self.assertRaises(SatisfiabilityErrorWithHint) as ctx:
self.resolve_with_hint(request)
self.assertMultiLineEqual(
ctx.exception.hint_pretty_string, r_hint_pretty_string)
def test_upgrade_no_candidate(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
scipy_0_17_1 = P(u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
gnureadline_6_3 = P(u"gnureadline 6.3-1")
# gnureadline is not available in the remote repository
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
scipy_0_17_1
])
self.installed_repository.update([mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
self.installed_repository.update([gnureadline_6_3])
# When/Then
request = Request()
request.upgrade()
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def _solve(self, top_core, flags={}, only_matching_vlnv=False):
def eq_vln(this, that):
return \
this.vendor == that.vendor and \
this.library == that.library and \
this.name == that.name
repo = Repository()
_flags = flags.copy()
cores = [x['core'] for x in self._cores.values()]
for core in cores:
if only_matching_vlnv:
if not eq_vln(core.name, top_core):
continue
package_str = "{} {}-{}".format(self._package_name(core.name),
core.name.version,
core.name.revision)
if not only_matching_vlnv:
_flags['is_toplevel'] = (core.name == top_core)
_depends = core.get_depends(_flags)
if _depends:
_s = "; depends ( {} )"
package_str += _s.format(self._parse_depend(_depends))
parser = PrettyPackageStringParser(EnpkgVersion.from_string)
package = parser.parse_to_package(package_str)
package.core = core
repo.add_package(package)
request = Request()
_top_dep = "{} {} {}".format(self._package_name(top_core),
top_core.relation,
self._package_version(top_core))
requirement = Requirement._from_string(_top_dep)
request.install(requirement)
installed_repository = Repository()
pool = Pool([repo])
pool.add_repository(installed_repository)
solver = DependencySolver(pool, [repo], installed_repository)
try:
transaction = solver.solve(request)
except SatisfiabilityError as e:
raise DependencyError(top_core.name,
msg=e.unsat.to_string(pool))
except NoPackageFound as e:
raise DependencyError(top_core.name)
return [op.package.core for op in transaction.operations]
def test_missing_direct_dependency_fails(self):
# Given
numpy192 = self.package_factory(u"numpy 1.9.2-1")
numpy200 = self.package_factory(u"numpy 2.0.0-1; depends (missing)")
self.repository.add_package(numpy192)
self.repository.add_package(numpy200)
# When
request = Request()
request.install(R("numpy >= 2.0"))
# Then
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def test_simple_install(self):
# Given
mkl = self.package_factory(u"mkl 10.3-1")
self.repository.add_package(mkl)
r_operations = [InstallOperation(mkl)]
request = Request()
request.install(R("mkl"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_simple_install(self):
# Given
mkl = self.package_factory(u"mkl 10.3-1")
self.repository.add_package(mkl)
r_operations = [InstallOperation(mkl)]
request = Request()
request.install(R("mkl"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_missing_direct_dependency_fails(self):
# Given
numpy192 = self.package_factory(u"numpy 1.9.2-1")
numpy200 = self.package_factory(u"numpy 2.0.0-1; depends (missing)")
self.repository.add_package(numpy192)
self.repository.add_package(numpy200)
# When
request = Request()
request.install(R("numpy >= 2.0"))
# Then
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def from_yaml(cls, file_or_filename):
if isinstance(file_or_filename, six.string_types):
with open(file_or_filename) as fp:
data = yaml.load(fp, Loader=_UnicodeLoader)
else:
data = yaml.load(file_or_filename, Loader=_UnicodeLoader)
scenario_requests = data.get("request", [])
marked = list(data.get("marked", []))
request = Request()
for kind, values in data.get("modifiers", {}).items():
for value in values:
getattr(request, kind)(value)
update_all = False
for s_request in scenario_requests:
kind = s_request["operation"]
if kind == 'update_all':
update_all = True
continue
requirement = Requirement._from_string(s_request["requirement"])
try:
marked.remove(requirement.name)
except ValueError:
pass
getattr(request, kind)(requirement)
if update_all:
request_job = request.hard_update
else:
request_job = request.install
for package_str in marked:
request_job(Requirement._from_string(package_str))
decisions = data.get("decisions", {})
operations = cls._operations_from_transaction_list(
data.get("transaction", []))
pretty_operations = cls._operations_from_transaction_list(
data.get("pretty_transaction", []))
failure = data.get('failure')
packages = collections.OrderedDict(
parse_package_list(data.get("packages", [])))
return cls(packages, [remote_repository(data, packages)],
installed_repository(data, packages),
request,
decisions,
operations,
pretty_operations,
failure=failure)
def callback(jobs):
callback_request = Request(modifiers=request.modifiers)
for job in jobs:
callback_request.jobs.append(job)
try:
self.solve(callback_request)
return True
except SatisfiabilityError:
return False
def test_strange_key_error_bug_on_failure(self):
# Given
mkl = self.package_factory(u'MKL 10.3-1')
libgfortran = self.package_factory(u'libgfortran 3.0.0-2')
numpy192 = self.package_factory(
u"numpy 1.9.2-1; depends (libgfortran ^= 3.0.0, MKL == 10.3-1)")
numpy200 = self.package_factory(
u"numpy 2.0.0-1; depends (nonexistent)")
request = Request()
# When
for pkg in (mkl, libgfortran, numpy192, numpy200):
self.repository.add_package(pkg)
request.install(R("numpy >= 2.0"))
# Then
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def test_missing_dependency_strict(self):
# Given
mkl = self.package_factory(u'MKL 10.3-1')
libgfortran = self.package_factory(u'libgfortran 3.0.0-2')
numpy192 = self.package_factory(
u"numpy 1.9.2-1; depends (libgfortran ^= 3.0.0, MKL == 10.3-1)")
numpy200 = self.package_factory(
u"numpy 2.0.0-1; depends (nonexistent)")
request = Request()
# When
for pkg in (mkl, libgfortran, numpy192, numpy200):
self.repository.add_package(pkg)
request.install(R("numpy == 2.0.0-1"))
# Then
with self.assertRaises(MissingInstallRequires):
self.resolve(request, strict=True)
def test_strange_key_error_bug_on_failure(self):
# Given
mkl = self.package_factory(u'MKL 10.3-1')
libgfortran = self.package_factory(u'libgfortran 3.0.0-2')
numpy192 = self.package_factory(
u"numpy 1.9.2-1; depends (libgfortran ^= 3.0.0, MKL == 10.3-1)")
numpy200 = self.package_factory(
u"numpy 2.0.0-1; depends (nonexistent)")
request = Request()
# When
for pkg in (mkl, libgfortran, numpy192, numpy200):
self.repository.add_package(pkg)
request.install(R("numpy >= 2.0"))
# Then
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def test_missing_dependency_strict(self):
# Given
mkl = self.package_factory(u'MKL 10.3-1')
libgfortran = self.package_factory(u'libgfortran 3.0.0-2')
numpy192 = self.package_factory(
u"numpy 1.9.2-1; depends (libgfortran ^= 3.0.0, MKL == 10.3-1)")
numpy200 = self.package_factory(
u"numpy 2.0.0-1; depends (nonexistent)")
request = Request()
# When
for pkg in (mkl, libgfortran, numpy192, numpy200):
self.repository.add_package(pkg)
request.install(R("numpy == 2.0.0-1"))
# Then
with self.assertRaises(MissingInstallRequires):
self.resolve(request, strict=True)
def solve(self, top_core, tool):
repo = Repository()
for core in self._cores.values():
package_str = "{} {}-{}".format(self._package_name(core.name),
core.name.version,
core.name.revision)
_depends = core.depend
try:
_depends += getattr(core, tool).depend
except (AttributeError, KeyError):
pass
if _depends:
_s = "; depends ( {} )"
package_str += _s.format(self._parse_depend(_depends))
parser = PrettyPackageStringParser(EnpkgVersion.from_string)
package = parser.parse_to_package(package_str)
package.core = core
repo.add_package(package)
request = Request()
_top_dep = "{} {} {}".format(self._package_name(top_core),
top_core.relation,
self._package_version(top_core))
requirement = Requirement._from_string(_top_dep)
request.install(requirement)
installed_repository = Repository()
pool = Pool([repo])
pool.add_repository(installed_repository)
solver = DependencySolver(pool, repo, installed_repository)
try:
transaction = solver.solve(request)
except SatisfiabilityError as e:
msg = "UNSATISFIABLE: {}"
raise RuntimeError(msg.format(e.unsat.to_string(pool)))
except NoPackageFound as e:
raise DependencyError(top_core.name)
return [op.package.core for op in transaction.operations]
def generate_rules_for_requirement(pool, requirement, installed_map=None):
"""Generate CNF rules for a requirement.
Parameters
----------
pool: Pool
Package constraints.
requirement: Requirement
Package to be installed.
Returns
-------
rules: list
Package rules describing the given scenario.
"""
request = Request()
request.install(requirement)
rules_generator = RulesGenerator(pool, request, installed_map)
rules = list(rules_generator.iter_rules())
return rules
def test_direct_dependency_conflict(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
numpy_1_11_3 = P(u"numpy 1.11.3-1; depends (mkl ^= 2017.0.1)")
scipy_0_18_1 = P(
u"scipy 0.18.1-1; depends (mkl ^= 2017.0.1, numpy ^= 1.11.3)")
self.repository.update([
mkl_11_3_1,
mkl_2017_0_1_1,
numpy_1_11_3,
scipy_0_18_1,
])
request = Request()
request.install(R(u"scipy >= 0.18.0"))
request.install(R(u"numpy >= 1.10.0"))
request.install(
R(u"mkl < 12")) # MKL < 12 conflicts with scipy >= 0.18.0
r_hint_pretty_string = textwrap.dedent(u"""\
The following jobs are conflicting:
install numpy >= 1.10.0-0
install mkl < 12-0""")
# When/Then
with self.assertRaises(SatisfiabilityErrorWithHint) as ctx:
self.resolve_with_hint(request)
self.assertMultiLineEqual(ctx.exception.hint_pretty_string,
r_hint_pretty_string)
def test_already_installed(self):
# Given
mkl1 = self.package_factory(u"mkl 10.3-1")
mkl2 = self.package_factory(u"mkl 10.3-2")
r_operations = []
self.repository.add_package(mkl1)
self.repository.add_package(mkl2)
self.installed_repository.add_package(mkl1)
# When
request = Request()
request.install(R("mkl"))
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
# Given
r_operations = [
UpdateOperation(mkl2, mkl1),
]
# When
request = Request()
request.install(R("mkl > 10.3-1"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_upgrade_fail(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
scipy_0_17_1 = P(u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
scipy_0_17_1
])
self.installed_repository.update([mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
# When/Then
request = Request()
request.upgrade()
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def satisfy_requirements(packages, requirements, modifiers=None):
""" Find a collection of packages that satisfy the requirements.
Parameters
----------
packages : iterable of PackageMetadata
The packages available to draw from when satisfying requirements.
requirements : list of Requirement
The requirements used to identify relevent packages.
modifiers : ConstraintModifiers, optional
If not None, modify requirements before resolving packages.
Returns
-------
tuple of PackageMetadata
Return a tuple of packages that together satisfy all of the
`requirements`. The packages are in topological order.
Raises
------
SatisfiabilityError
If the `requirements` cannot be satisfied using the `packages`.
"""
request = Request(modifiers=modifiers)
for requirement in requirements:
request.install(requirement)
repositories = (Repository(packages),)
pool = Pool(repositories, modifiers=modifiers)
transaction = DependencySolver(pool, repositories, []).solve(request)
msg = ("""
Unexpected operation in the transaction. This should never occur.
Something in simplesat is broken.
{!r}""")
for op in transaction.operations:
# Our installed repository was empty so everything should be an install
# operation
assert isinstance(op, InstallOperation), msg.format(op)
packages = tuple(op.package for op in transaction.operations)
return packages
def test_multiple_installs(self):
# Given
mkl = self.package_factory(u"mkl 10.3-1")
libgfortran = self.package_factory(u"libgfortran 3.0.0-2")
r_operations = [
InstallOperation(mkl),
InstallOperation(libgfortran),
]
self.repository.add_package(mkl)
self.repository.add_package(libgfortran)
request = Request()
request.install(R("mkl"))
request.install(R("libgfortran"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_upgrade_simple(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
numpy_1_11_3 = P(u"numpy 1.11.3-1; depends (mkl ^= 2017.0.1)")
scipy_0_17_1 = P(
u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
scipy_0_18_1 = P(
u"scipy 0.18.1-1; depends (mkl ^= 2017.0.1, numpy ^= 1.11.3)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
numpy_1_11_3, scipy_0_17_1, scipy_0_18_1
])
self.installed_repository.update(
[mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
r_operations = [
RemoveOperation(scipy_0_17_1),
RemoveOperation(numpy_1_10_4),
RemoveOperation(mkl_11_3_1),
InstallOperation(mkl_2017_0_1_2),
InstallOperation(numpy_1_11_3),
InstallOperation(scipy_0_18_1),
]
# When
request = Request()
request.upgrade()
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def generate_rules_for_requirement(pool, requirement, installed_map=None):
"""Generate CNF rules for a requirement.
Parameters
----------
pool : Pool
A Pool of Repositories to use when fulfilling the requirement.
requirement : Requirement
The description of the package to be installed.
Returns
-------
rules : list
Package rules describing the given scenario.
"""
request = Request()
request.install(requirement)
rules_generator = RulesGenerator(
pool, request, installed_map=installed_map)
rules = list(rules_generator.iter_rules())
return rules
def generate_rules_for_requirement(pool, requirement, installed_map=None):
"""Generate CNF rules for a requirement.
Parameters
----------
pool : Pool
A Pool of Repositories to use when fulfilling the requirement.
requirement : Requirement
The description of the package to be installed.
Returns
-------
rules : list
Package rules describing the given scenario.
"""
request = Request()
request.install(requirement)
rules_generator = RulesGenerator(pool,
request,
installed_map=installed_map)
rules = list(rules_generator.iter_rules())
return rules
def test_no_conflict(self):
# Given
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
numpy_1_11_3 = P(u"numpy 1.11.3-1; depends (mkl ^= 2017.0.1)")
scipy_0_18_1 = P(
u"scipy 0.18.1-1; depends (mkl ^= 2017.0.1, numpy ^= 1.11.3)")
r_operations = [
InstallOperation(mkl_2017_0_1_1),
InstallOperation(numpy_1_11_3),
InstallOperation(scipy_0_18_1),
]
self.repository.update([mkl_2017_0_1_1, numpy_1_11_3, scipy_0_18_1])
request = Request()
request.install(R(u"scipy >= 0.18.0"))
request.install(R(u"numpy >= 1.10.0"))
# When
transaction = self.resolve_with_hint(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_upgrade_fail(self):
# Given
mkl_11_3_1 = P(u"mkl 11.3.1-1")
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
mkl_2017_0_1_2 = P(u"mkl 2017.0.1-2")
numpy_1_10_4 = P(u"numpy 1.10.4-1; depends (mkl ^= 11.3.1)")
scipy_0_17_1 = P(
u"scipy 0.17.1-1; depends (mkl ^= 11.3.1, numpy ^= 1.10.4)")
self.repository.update([
mkl_11_3_1, mkl_2017_0_1_1, mkl_2017_0_1_2, numpy_1_10_4,
scipy_0_17_1
])
self.installed_repository.update(
[mkl_11_3_1, numpy_1_10_4, scipy_0_17_1])
# When/Then
request = Request()
request.upgrade()
with self.assertRaises(SatisfiabilityError):
self.resolve(request)
def test_no_conflict(self):
# Given
mkl_2017_0_1_1 = P(u"mkl 2017.0.1-1")
numpy_1_11_3 = P(u"numpy 1.11.3-1; depends (mkl ^= 2017.0.1)")
scipy_0_18_1 = P(u"scipy 0.18.1-1; depends (mkl ^= 2017.0.1, numpy ^= 1.11.3)")
r_operations = [
InstallOperation(mkl_2017_0_1_1),
InstallOperation(numpy_1_11_3),
InstallOperation(scipy_0_18_1),
]
self.repository.update([mkl_2017_0_1_1, numpy_1_11_3, scipy_0_18_1])
request = Request()
request.install(R(u"scipy >= 0.18.0"))
request.install(R(u"numpy >= 1.10.0"))
# When
transaction = self.resolve_with_hint(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def test_modification_what_provides(self):
# Given
repository = Repository(self.packages_from_definition(
"numpy 1.8.1-1; depends (MKL == 10.3-1)"))
request = Request()
request.modifiers.allow_newer.add('numpy')
# When
pool = Pool([repository], modifiers=request.modifiers)
requirement = InstallRequirement._from_string('numpy ^= 1.7')
numpy_181 = list(repository)[0]
result = pool.what_provides(requirement)
expected = [numpy_181]
# Then
self.assertEqual(result, expected)
def test_already_installed(self):
# Given
mkl1 = self.package_factory(u"mkl 10.3-1")
mkl2 = self.package_factory(u"mkl 10.3-2")
r_operations = []
self.repository.add_package(mkl1)
self.repository.add_package(mkl2)
self.installed_repository.add_package(mkl1)
# When
request = Request()
request.install(R("mkl"))
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
# Given
r_operations = [
RemoveOperation(mkl1),
InstallOperation(mkl2),
]
r_pretty_operations = [
UpdateOperation(mkl2, mkl1),
]
# When
request = Request()
request.install(R("mkl > 10.3-1"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
self.assertEqualOperations(transaction.pretty_operations,
r_pretty_operations)
def test_multiple_installs(self):
# Given
mkl = self.package_factory(u"mkl 10.3-1")
libgfortran = self.package_factory(u"libgfortran 3.0.0-2")
r_operations = [
InstallOperation(libgfortran),
InstallOperation(mkl),
]
self.repository.add_package(mkl)
self.repository.add_package(libgfortran)
request = Request()
request.install(R("mkl"))
request.install(R("libgfortran"))
# When
transaction = self.resolve(request)
# Then
self.assertEqualOperations(transaction.operations, r_operations)
def _solve(self, top_core, flags={}, only_matching_vlnv=False):
def eq_vln(this, that):
return (
this.vendor == that.vendor
and this.library == that.library
and this.name == that.name
)
# Try to return a cached result
solver_cache_key = (top_core, self._hash_flags_dict(flags), only_matching_vlnv)
cached_solution = self._solver_cache_lookup(solver_cache_key)
if cached_solution:
return cached_solution
repo = Repository()
_flags = flags.copy()
cores = [x["core"] for x in self._cores.values()]
for core in cores:
if only_matching_vlnv:
if not eq_vln(core.name, top_core):
continue
package_str = "{} {}-{}".format(
self._package_name(core.name), core.name.version, core.name.revision
)
if not only_matching_vlnv:
_flags["is_toplevel"] = core.name == top_core
_depends = core.get_depends(_flags)
if _depends:
_s = "; depends ( {} )"
package_str += _s.format(self._parse_depend(_depends))
parser = PrettyPackageStringParser(EnpkgVersion.from_string)
package = parser.parse_to_package(package_str)
package.core = core
repo.add_package(package)
request = Request()
simplevlnvs = top_core.simpleVLNVs()
for sv in simplevlnvs:
_top_dep = "{} {} {}".format(
self._package_name(top_core),
top_core.relation,
self._package_version(top_core),
)
request.install(Requirement._from_string(_top_dep))
installed_repository = Repository()
pool = Pool([repo])
pool.add_repository(installed_repository)
solver = DependencySolver(pool, [repo], installed_repository)
try:
transaction = solver.solve(request)
except SatisfiabilityError as e:
raise DependencyError(top_core.name, msg=e.unsat.to_string(pool))
except NoPackageFound as e:
raise DependencyError(top_core.name)
objdict = {}
depdict = {}
if len(transaction.operations) > 1:
for op in transaction.operations:
objdict[op.package._name] = str(op.package.core.name)
depdict[str(op.package.core.name)] = [
objdict[n[0]] for n in op.package.install_requires
]
op.package.core.direct_deps = [
objdict[n[0]] for n in op.package.install_requires
]
result = [op.package.core for op in transaction.operations]
# Cache the solution for further lookups
self._solver_cache_store(solver_cache_key, result)
return result