[oe-commits] Ross Burton : utils: add helper to perform the intersection of two string lists
git at git.openembedded.org
git at git.openembedded.org
Sat May 23 07:15:17 UTC 2015
Module: openembedded-core.git
Branch: master-next
Commit: c5b6f672b88f5f42fe0bd59d28104b8dc9ee9a6e
URL: http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=c5b6f672b88f5f42fe0bd59d28104b8dc9ee9a6e
Author: Ross Burton <ross.burton at intel.com>
Date: Fri May 22 12:30:26 2015 +0100
utils: add helper to perform the intersection of two string lists
Useful for e.g. generating a COMBINED_FEATURES list from DISTRO_FEATURES and
MACHINE_FEATURES.
Signed-off-by: Ross Burton <ross.burton at intel.com>
---
meta/lib/oe/utils.py | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/meta/lib/oe/utils.py b/meta/lib/oe/utils.py
index b8224de..7173e10 100644
--- a/meta/lib/oe/utils.py
+++ b/meta/lib/oe/utils.py
@@ -55,6 +55,21 @@ def both_contain(variable1, variable2, checkvalue, d):
else:
return ""
+def set_intersect(variable1, variable2, d):
+ """
+ Expand both variables, interpret them as lists of strings, and return the
+ intersection as a flattened string.
+
+ For example:
+ s1 = "a b c"
+ s2 = "b c d"
+ s3 = set_intersect(s1, s2)
+ => s3 = "b c"
+ """
+ val1 = set(d.getVar(variable1, True).split())
+ val2 = set(d.getVar(variable2, True).split())
+ return " ".join(val1 & val2)
+
def prune_suffix(var, suffixes, d):
# See if var ends with any of the suffixes listed and
# remove it if found
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