def get_licensing(_test_licenses=None):
"""
Return and cache a license_expression.Licensing objet built from the all the
licenses.
"""
global _LICENSING
if not _LICENSING or _test_licenses:
if _test_licenses:
licenses = _test_licenses
else:
licenses = get_licenses_db()
from license_expression import LicenseSymbolLike
from license_expression import Licensing
licensing = Licensing(
(LicenseSymbolLike(lic) for lic in licenses.values()))
if _test_licenses:
# Do not cache when testing
return licensing
_LICENSING = licensing
return _LICENSING
def get_unknown_spdx_symbol(_test_licenses=None):
"""
Return the unknown SPDX license symbol.
Note: the `_test_licenses` arg is a mapping of key: license used for testing
instead of the standard license db.
"""
global _UNKNOWN_SPDX_SYMBOL
if not _UNKNOWN_SPDX_SYMBOL or _test_licenses:
from license_expression import LicenseSymbolLike
if _test_licenses:
licenses = _test_licenses
else:
licenses = get_licenses_db()
unknown = LicenseSymbolLike(licenses[u'unknown-spdx'])
if _test_licenses:
# Do not cache when testing
return unknown
_UNKNOWN_SPDX_SYMBOL = unknown
return _UNKNOWN_SPDX_SYMBOL
def build_unknown_spdx_symbol(licenses_db=None):
"""
Return the unknown SPDX license symbol given a `licenses_db` mapping of
{key: License} or the standard license db.
"""
from license_expression import LicenseSymbolLike
licenses = licenses_db or build_licenses_db()
return LicenseSymbolLike(licenses[u'unknown-spdx'])
def build_unknown_spdx_symbol(licenses_db=None):
"""
Return the unknown SPDX license symbol given a `licenses_db` mapping of
{key: License} or the standard license db.
"""
from license_expression import LicenseSymbolLike
from licensedcode.models import load_licenses
licenses_db = licenses_db or load_licenses()
return LicenseSymbolLike(licenses_db['unknown-spdx'])
def build_licensing(licenses_db=None):
"""
Return a `license_expression.Licensing` objet built from `licenses_db`
mapping of {key: License} or the standard license db.
"""
from license_expression import LicenseSymbolLike
from license_expression import Licensing
licenses = licenses_db or build_licenses_db()
return Licensing((LicenseSymbolLike(lic) for lic in licenses.values()))
def get_spdx_symbols(_test_licenses=None):
"""
Return a mapping of (SPDX LicenseSymbol -> lowercased SPDX license key-> key}
Note: the `_test_licenses` arg is a mapping of key: license used for testing
instead of the standard license db.
"""
global _LICENSE_SYMBOLS_BY_SPDX_KEY
if not _LICENSE_SYMBOLS_BY_SPDX_KEY or _test_licenses:
from license_expression import LicenseSymbol
from license_expression import LicenseSymbolLike
symbols_by_spdx_key = {}
if _test_licenses:
licenses = _test_licenses
else:
licenses = get_licenses_db()
for lic in licenses.values():
if not (lic.spdx_license_key or lic.other_spdx_license_keys):
continue
symbol = LicenseSymbolLike(lic)
if lic.spdx_license_key:
slk = lic.spdx_license_key.lower()
existing = symbols_by_spdx_key.get(slk)
if existing:
raise ValueError(
'Duplicated SPDX license key: %(slk)r defined in '
'%(lic)r and %(existing)r' % locals())
symbols_by_spdx_key[slk] = symbol
for other_spdx in lic.other_spdx_license_keys:
if not (other_spdx and other_spdx.strip()):
continue
slk = other_spdx.lower()
existing = symbols_by_spdx_key.get(slk)
if existing:
raise ValueError(
'Duplicated "other" SPDX license key: %(slk)r defined '
'in %(lic)r and %(existing)r' % locals())
symbols_by_spdx_key[slk] = symbol
if _test_licenses:
# Do not cache when testing
return symbols_by_spdx_key
_LICENSE_SYMBOLS_BY_SPDX_KEY = symbols_by_spdx_key
return _LICENSE_SYMBOLS_BY_SPDX_KEY
def build_spdx_symbols(licenses_db=None):
"""
Return a mapping of {lowercased SPDX license key: LicenseSymbolLike} where
LicenseSymbolLike wraps a License object loaded from a `licenses_db` mapping
of {key: License} or the standard license db.
"""
from license_expression import LicenseSymbolLike
from licensedcode.models import load_licenses
licenses_db = licenses_db or load_licenses()
symbols_by_spdx_key = {}
for lic in licenses_db.values():
if not (lic.spdx_license_key or lic.other_spdx_license_keys):
continue
symbol = LicenseSymbolLike(lic)
if lic.spdx_license_key:
slk = lic.spdx_license_key.lower()
existing = symbols_by_spdx_key.get(slk)
if existing:
raise ValueError(
'Duplicated SPDX license key: %(slk)r defined in '
'%(lic)r and %(existing)r' % locals())
symbols_by_spdx_key[slk] = symbol
for other_spdx in lic.other_spdx_license_keys:
if not (other_spdx and other_spdx.strip()):
continue
slk = other_spdx.lower()
existing = symbols_by_spdx_key.get(slk)
if existing:
raise ValueError(
'Duplicated "other" SPDX license key: %(slk)r defined '
'in %(lic)r and %(existing)r' % locals())
symbols_by_spdx_key[slk] = symbol
return symbols_by_spdx_key
def build_spdx_symbols(licenses_db=None):
"""
Return a mapping of {lowercased SPDX license key: LicenseSymbolLike} where
LicenseSymbolLike wraps a License object loaded from a `licenses_db` mapping
of {key: License} or the standard license db.
"""
from license_expression import LicenseSymbolLike
from licensedcode.models import load_licenses
licenses_db = licenses_db or load_licenses()
licenses_by_spdx_key = get_licenses_by_spdx_key(
licenses=licenses_db.values(),
include_deprecated=False,
lowercase_keys=True,
include_other_spdx_license_keys=True,
)
return {
spdx: LicenseSymbolLike(lic)
for spdx, lic in licenses_by_spdx_key.items()
}
