bitbake: codeparser: Add function decorators for vardeps

Adds bb.parse.vardeps bb.parse.excludevardeps function decorators that
can be used to explicitly add or exclude variables from a python
function parsed by bitbake

(Bitbake rev: 030fb3dee067640a3a50f24a53d200bdb5048376)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/bitbake/lib/bb/codeparser.py b/bitbake/lib/bb/codeparser.py
index 4bc6adbe45..4f70cf7fe7 100644
--- a/bitbake/lib/bb/codeparser.py
+++ b/bitbake/lib/bb/codeparser.py
@@ -69,7 +69,7 @@ def add_module_functions(fn, functions, namespace):
         name = "%s.%s" % (namespace, f)
         parser = PythonParser(name, logger)
         try:
-            parser.parse_python(None, filename=fn, lineno=1, fixedhash=fixedhash+f)
+            parser.parse_python(None, filename=fn, lineno=1, fixedhash=fixedhash+f, func=functions[f])
             #bb.warn("Cached %s" % f)
         except KeyError:
             try:
@@ -87,7 +87,7 @@ def add_module_functions(fn, functions, namespace):
                 # Builtin
                 continue
             src = "".join(lines)
-            parser.parse_python(src, filename=fn, lineno=lineno, fixedhash=fixedhash+f)
+            parser.parse_python(src, filename=fn, lineno=lineno, fixedhash=fixedhash+f, func=functions[f])
             #bb.warn("Not cached %s" % f)
         execs = parser.execs.copy()
         # Expand internal module exec references
@@ -348,7 +348,7 @@ class PythonParser():
     # For the python module code it is expensive to have the function text so it is
     # uses a different fixedhash to cache against. We can take the hit on obtaining the
     # text if it isn't in the cache.
-    def parse_python(self, node, lineno=0, filename="<string>", fixedhash=None):
+    def parse_python(self, node, lineno=0, filename="<string>", fixedhash=None, func=None):
         if not fixedhash and (not node or not node.strip()):
             return
 
@@ -390,6 +390,10 @@ class PythonParser():
             if n.__class__.__name__ == "Call":
                 self.visit_Call(n)
 
+        if func is not None:
+            self.references |= getattr(func, "bb_vardeps", set())
+            self.references -= getattr(func, "bb_vardepsexclude", set())
+
         self.execs.update(self.var_execs)
         self.extra = None
         if fixedhash: