From: Chris Larson <chris_larson@mentor.com>
Date: Sun, 17 Oct 2010 05:32:06 +0000 (-0700)
Subject: utils, oe.utils: add 'uniq' function
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=16011461a11c3408a81983b5f719e5e9da9c7ff6;p=openembedded.git

utils, oe.utils: add 'uniq' function

Ignore duplicates in an iterable.

Signed-off-by: Chris Larson <chris_larson@mentor.com>
---

diff --git a/classes/utils.bbclass b/classes/utils.bbclass
index 81417fca27..2c6a59d543 100644
--- a/classes/utils.bbclass
+++ b/classes/utils.bbclass
@@ -1,4 +1,8 @@
 # For compatibility
+def uniq(iterable):
+    import oe.utils
+    return oe.utils.uniq(iterable)
+
 def base_path_join(a, *p):
     return oe.path.join(a, *p)
 
diff --git a/lib/oe/utils.py b/lib/oe/utils.py
index 3469700726..2169ed212e 100644
--- a/lib/oe/utils.py
+++ b/lib/oe/utils.py
@@ -1,3 +1,10 @@
+def uniq(iterable):
+    seen = set()
+    for i in iterable:
+        if i not in seen:
+            yield i
+        seen.add(i)
+
 def read_file(filename):
     try:
         f = file( filename, "r" )