oe/utils.py: Add vartrue()

It can be used to simplify code like:
"${@['iffalse', 'iftrue'][var]}"

(From OE-Core rev: fc5a5af7bc3619f575988a75efc0c4fe15478b2d)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 9 insertions, 1 deletions

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index faef77142a..dbadeb38aa 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -610,7 +610,7 @@ DEBUG_FLAGS ?= "-g -feliminate-unused-debug-types ${DEBUG_PREFIX_MAP}"
 # Disabled until the option works properly -feliminate-dwarf2-dups
 FULL_OPTIMIZATION = "-O2 -pipe ${DEBUG_FLAGS}"
 DEBUG_OPTIMIZATION = "-O -fno-omit-frame-pointer ${DEBUG_FLAGS} -pipe"
-SELECTED_OPTIMIZATION = "${@d.getVar(['FULL_OPTIMIZATION', 'DEBUG_OPTIMIZATION'][d.getVar('DEBUG_BUILD') == '1'])}"
+SELECTED_OPTIMIZATION = "${@d.getVar(oe.utils.vartrue('DEBUG_BUILD', 'DEBUG_OPTIMIZATION', 'FULL_OPTIMIZATION', d))}"
 SELECTED_OPTIMIZATION[vardeps] += "FULL_OPTIMIZATION DEBUG_OPTIMIZATION"
 BUILD_OPTIMIZATION = "-O2 -pipe"
 
diff --git a/meta/lib/oe/utils.py b/meta/lib/oe/utils.py
index fbda7035f1..93b0763b0a 100644
--- a/meta/lib/oe/utils.py
+++ b/meta/lib/oe/utils.py
@@ -25,6 +25,13 @@ def conditional(variable, checkvalue, truevalue, falsevalue, d):
     else:
         return falsevalue
 
+def vartrue(var, iftrue, iffalse, d):
+    import oe.types
+    if oe.types.boolean(d.getVar(var)):
+        return iftrue
+    else:
+        return iffalse
+
 def less_or_equal(variable, checkvalue, truevalue, falsevalue, d):
     if float(d.getVar(variable)) <= float(checkvalue):
         return truevalue
@@ -467,3 +474,4 @@ class ImageQAFailed(bb.build.FuncFailed):
             msg = msg + ' (%s)' % self.description
 
         return msg
+