Add Kconfiglib to parse Kconfig/.config

2 files changed, 64 insertions, 0 deletions

diff --git a/tools/Kconfiglib b/tools/Kconfiglib
new file mode 160000
+Subproject 5d918357dd5734b900e1fdf074090ea662debd9
diff --git a/tools/config.py b/tools/config.py
new file mode 100755
index 0000000..22defdd
--- /dev/null
+++ b/tools/config.py
@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+
+import argparse
+from Kconfiglib import kconfiglib
+
+def search(node, term):
+    while node:
+        if isinstance(node.item, kconfiglib.Symbol):
+            if node.item.name == term:
+                return node.item.str_value
+
+        if node.list:
+            r = search(node.list, term)
+            if r is not None:
+                return r
+
+        node = node.next
+
+def searchBug(node, term):
+    bugs = ""
+
+    while node:
+        if isinstance(node.item, kconfiglib.Symbol):
+            if node.item.name.startswith(term):
+                if bugs is not "":
+                    bugs += ";"
+                bugs += node.item.name
+
+        if node.list:
+            r = searchBug(node.list, term)
+            if r is not None and r is not "":
+                if bugs is not "":
+                    bugs += ";"
+                bugs += r
+
+        node = node.next
+    return bugs
+
+def main(args):
+    kconf = kconfiglib.Kconfig(args.kconfig)
+    if args.dotconfig is not None:
+        kconf.load_config(args.dotconfig)
+
+    i = ""
+    if args.setting.endswith("BUG"):
+        i = searchBug(kconf.top_node, args.setting)
+    else:
+        i = search(kconf.top_node, args.setting)
+
+    if i is not None:
+        print(i)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument("--kconfig", metavar="Kconfig", nargs="?", default="Kconfig", help="Top-level Kconfig file (default: Kconfig)")
+
+    parser.add_argument("--dotconfig", metavar="dotconfig", nargs="?", help=".config")
+
+    parser.add_argument("setting", metavar="CONFIG_KEY", nargs="?", help="Top-level Kconfig file (default: Kconfig)")
+
+    args = parser.parse_args()
+    main(args)