data: Optimise flag lookup in build_dependencies

When looking up flag variable dependencies, large chunks of the function
aren't needed. Optimise the function flow accordingly for speed.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/data.py b/lib/bb/data.py
index 876f6ca5422e0521b1a7896374e9955ef8ab4852..49bb5e997d4d79062099bf528ef466061ea2801c 100644 (file)
--- a/lib/bb/data.py
+++ b/lib/bb/data.py
@@ -291,10 +291,13 @@ def build_dependencies(key, keys, shelldeps, vardepvals, d):
         if key[-1] == ']':
             vf = key[:-1].split('[')
             value = d.getVarFlag(vf[0], vf[1], False)
-        else:
-            value = d.getVar(key, False)
+            parser = d.expandWithRefs(value, key)
+            deps |= parser.references
+            deps = deps | (keys & parser.execs)
+            return deps, value
         varflags = d.getVarFlags(key, ["vardeps", "vardepvalue", "vardepsexclude"]) or {}
         vardeps = varflags.get("vardeps")
+        value = d.getVar(key, False)
 
         if "vardepvalue" in varflags:
            value = varflags.get("vardepvalue")