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-rw-r--r--meta/lib/oe/license.py77
1 files changed, 77 insertions, 0 deletions
diff --git a/meta/lib/oe/license.py b/meta/lib/oe/license.py
index 254279db53..f0f661c3ba 100644
--- a/meta/lib/oe/license.py
+++ b/meta/lib/oe/license.py
@@ -138,3 +138,80 @@ def is_included(licensestr, whitelist=None, blacklist=None):
return False, excluded
else:
return True, included
+
+class ManifestVisitor(LicenseVisitor):
+ """Walk license tree (parsed from a string) removing the incompatible
+ licenses specified"""
+ def __init__(self, dont_want_licenses, canonical_license, d):
+ self._dont_want_licenses = dont_want_licenses
+ self._canonical_license = canonical_license
+ self._d = d
+ self._operators = []
+
+ self.licenses = []
+ self.licensestr = ''
+
+ LicenseVisitor.__init__(self)
+
+ def visit(self, node):
+ if isinstance(node, ast.Str):
+ lic = node.s
+
+ if license_ok(self._canonical_license(self._d, lic),
+ self._dont_want_licenses) == True:
+ if self._operators:
+ ops = []
+ for op in self._operators:
+ if op == '[':
+ ops.append(op)
+ elif op == ']':
+ ops.append(op)
+ else:
+ if not ops:
+ ops.append(op)
+ elif ops[-1] in ['[', ']']:
+ ops.append(op)
+ else:
+ ops[-1] = op
+
+ for op in ops:
+ if op == '[' or op == ']':
+ self.licensestr += op
+ elif self.licenses:
+ self.licensestr += ' ' + op + ' '
+
+ self._operators = []
+
+ self.licensestr += lic
+ self.licenses.append(lic)
+ elif isinstance(node, ast.BitAnd):
+ self._operators.append("&")
+ elif isinstance(node, ast.BitOr):
+ self._operators.append("|")
+ elif isinstance(node, ast.List):
+ self._operators.append("[")
+ elif isinstance(node, ast.Load):
+ self.licensestr += "]"
+
+ self.generic_visit(node)
+
+def manifest_licenses(licensestr, dont_want_licenses, canonical_license, d):
+ """Given a license string and dont_want_licenses list,
+ return license string filtered and a list of licenses"""
+ manifest = ManifestVisitor(dont_want_licenses, canonical_license, d)
+
+ try:
+ elements = manifest.get_elements(licensestr)
+
+ # Replace '()' to '[]' for handle in ast as List and Load types.
+ elements = ['[' if e == '(' else e for e in elements]
+ elements = [']' if e == ')' else e for e in elements]
+
+ manifest.visit_elements(elements)
+ except SyntaxError as exc:
+ raise LicenseSyntaxError(licensestr, exc)
+
+ # Replace '[]' to '()' for output correct license.
+ manifest.licensestr = manifest.licensestr.replace('[', '(').replace(']', ')')
+
+ return (manifest.licensestr, manifest.licenses)