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-rw-r--r--portato/backend/package.py18
1 files changed, 13 insertions, 5 deletions
diff --git a/portato/backend/package.py b/portato/backend/package.py
index 4f90765..16cee0e 100644
--- a/portato/backend/package.py
+++ b/portato/backend/package.py
@@ -12,6 +12,7 @@
from __future__ import absolute_import
+from ..helper import debug
from . import _Package, system, flags
class Package (_Package):
@@ -96,15 +97,22 @@ class Package (_Package):
@rtype: string[]"""
i_flags = self.get_global_settings("USE", installed = False).split()
+ m_flags = system.get_global_settings("USE").split()
for f in self.get_new_use_flags():
+ removed = False
+
+ if f[0] == "~":
+ f = f[1:]
+ removed = True
if f[0] == '-':
- if flags.invert_use_flag(f) in i_flags:
+ if flags.invert_use_flag(f) in i_flags and not (removed and flags.invert_use_flag(f) in m_flags):
i_flags.remove(flags.invert_use_flag(f))
-
+
elif f not in i_flags:
- i_flags.append(f)
-
+ if not (removed and flags.invert_use_flag(f) in m_flags):
+ i_flags.append(f)
+
return i_flags
def set_use_flag (self, flag):
@@ -130,7 +138,7 @@ class Package (_Package):
@returns: USE_EXPAND-value on success
@rtype: string or None"""
- if not suggest is None:
+ if suggest is not None:
if flag.startswith(suggest.lower()):
return suggest