1 files changed, 37 insertions, 0 deletions
diff --git a/syncconfig.py b/syncconfig.py
new file mode 100755
index 0000000..7a97d01
--- /dev/null
+++ b/syncconfig.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+
+# This script can be used to implement incremental builds, where changing a
+# symbol will recompile just the source files that reference it.
+#
+# See the docstring for the Kconfig.sync_deps() function for more usage
+# information.
+#
+# Usage:
+#
+#   (Automatically) run the following command before each build:
+#
+#     $ syncconfig [<top Kconfig file>] <symbol file directory, passed to sync_deps()>
+#
+#   This will indirectly catch any (relevant) changes to Kconfig files and
+#   environment variables as well, so it's redundant to have separate
+#   dependencies for those (except as a slight optimization).
+
+import sys
+
+import kconfiglib
+
+def main():
+    if not 2 <= len(sys.argv) <= 3:
+        sys.exit("usage: {} [Kconfig] <Symbol directory>".format(sys.argv[0]))
+
+    if len(sys.argv) == 2:
+        kconfig_filename = "Kconfig"
+        sym_dir = sys.argv[1]
+    else:
+        kconfig_filename = sys.argv[1]
+        sym_dir = sys.argv[2]
+
+    kconfiglib.Kconfig(kconfig_filename).sync_deps(sym_dir)
+
+if __name__ == "__main__":
+    main()