1 files changed, 45 insertions, 0 deletions

diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index d351b5aaed..4b98e29916 100644
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -237,6 +237,51 @@ python do_populate_lic() {
 
 }
 
+def incompatible_license(d,dont_want_license):
+    """
+    This function checks if a package has only incompatible licenses. It also take into consideration 'or'
+    operand.
+    """
+    import re
+    import oe.license
+    from fnmatch import fnmatchcase as fnmatch
+
+    dont_want_licenses = []
+    dont_want_licenses.append(d.getVar('INCOMPATIBLE_LICENSE', 1))
+    if d.getVarFlag('SPDXLICENSEMAP', dont_want_license):
+        dont_want_licenses.append(d.getVarFlag('SPDXLICENSEMAP', dont_want_license))
+
+    def include_license(license):
+        if any(fnmatch(license, pattern) for pattern in dont_want_licenses):
+            return False
+        else:
+            spdx_license = d.getVarFlag('SPDXLICENSEMAP', license)
+            if spdx_license and any(fnmatch(spdx_license, pattern) for pattern in dont_want_licenses):
+                return False
+            else:
+                return True
+
+    def choose_licenses(a, b):
+        if all(include_license(lic) for lic in a):
+                return a
+        else:
+                return b
+
+    """
+    If you want to exlude license named generically 'X', we surely want to exlude 'X+' as well.
+    In consequence, we will exclude the '+' character from LICENSE in case INCOMPATIBLE_LICENSE
+    is not a 'X+' license.
+    """
+    if not re.search(r'[+]',dont_want_license):
+        licenses=oe.license.flattened_licenses(re.sub(r'[+]', '', d.getVar('LICENSE', True)), choose_licenses)
+    else:
+        licenses=oe.license.flattened_licenses(d.getVar('LICENSE', True), choose_licenses)
+
+    for onelicense in licenses:
+        if not include_license(onelicense):
+                return True
+    return False
+
 SSTATETASKS += "do_populate_lic"
 do_populate_lic[sstate-name] = "populate-lic"
 do_populate_lic[sstate-inputdirs] = "${LICSSTATEDIR}"