From e27f6d02dad6a53fd80806971c4296e408bf22a6 Mon Sep 17 00:00:00 2001
From: Ralf Ramsauer <ralf@binary-kitchen.de>
Date: Fri, 14 Jun 2019 20:50:37 +0200
Subject: [PATCH] pydoorlock: autogenerate Protocol.py

Signed-off-by: Ralf Ramsauer <ralf@binary-kitchen.de>
---
 .gitignore              |  1 +
 Makefile                |  6 +++++-
 scripts/gen_protocol.sh | 35 +++++++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100755 scripts/gen_protocol.sh

diff --git a/.gitignore b/.gitignore
index 1ec7748..2c5a975 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,5 @@ arch/*.xz
 arch/BKCA.crt
 gpio-wait
 
+pydoorlock/Protocol.py
 pydoorlock/__pycache__/
diff --git a/Makefile b/Makefile
index c150446..08f59e1 100644
--- a/Makefile
+++ b/Makefile
@@ -2,13 +2,16 @@ DESTDIR ?= /
 PREFIX ?= /usr
 SYSCONFDIR ?= /etc
 
-all: gpio-wait
+all: gpio-wait pydoorlock/Protocol.py
 
 package:
 	sed -i -r -e "s@(^SYSCONFDIR = ').*('$$)@\1$(SYSCONFDIR)\2@" doorlockd
 	sed -i -r -e "s@(^PREFIX = ').*('$$)@\1$(PREFIX)\2@" doorlockd
 	sed -i -r -e "s@(^__version__ = ').*('$$)@\1$(shell cat VERSION)\2@" doorlockd
 
+pydoorlock/Protocol.py: avr-code/protocol.h
+	./scripts/gen_protocol.sh $^ > $@
+
 gpio-wait: gpio-wait.c
 
 install:
@@ -29,3 +32,4 @@ install:
 clean:
 	rm -f gpio-wait
 	rm -rf pydoorlock/__pycache__
+	rm -f pydoorlock/Protocol.py
diff --git a/scripts/gen_protocol.sh b/scripts/gen_protocol.sh
new file mode 100755
index 0000000..1466aac
--- /dev/null
+++ b/scripts/gen_protocol.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# doorlock-avr, AVR code of Binary Kitchen's doorlock
+#
+# Copyright (c) Binary Kitchen, 2019
+#
+# Authors:
+#  Ralf Ramsauer <ralf@binary-kitchen.de>
+#
+# This work is licensed under the terms of the GNU GPL, version 2.  See
+# the COPYING file in the top-level directory.
+
+PROTOCOL_H=$1
+
+function find_defines() {
+	header=$1
+	prefix=$2
+	search="#define\s\+${prefix}\(\S*\)\s\+\(\S*\).*"
+	replace="        \1\t= b\2"
+
+	grep $prefix $header | sed -e "s/$search/$replace/"
+}
+
+AVR_COMM=$(find_defines $PROTOCOL_H AVR_)
+
+cat <<END
+# This file is autogenerated. If you need to change it, edit
+# scripts/gen_protocol.sh instead.
+
+from enum import Enum
+
+
+class Protocol(Enum):
+${AVR_COMM}
+END