From 84ff71d5198efe07095763bb6f5b495b4e65aa9b Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Sat, 2 Sep 2023 09:14:50 +1000
Subject: [PATCH] Tools: added --periph-only option to build_bootloaders.py

---
 Tools/scripts/build_bootloaders.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/Tools/scripts/build_bootloaders.py b/Tools/scripts/build_bootloaders.py
index 2cd9e07dfe..2a44ce9694 100755
--- a/Tools/scripts/build_bootloaders.py
+++ b/Tools/scripts/build_bootloaders.py
@@ -9,12 +9,14 @@ import shutil
 import subprocess
 import sys
 import fnmatch
+import re
 
 # get command line arguments
 from argparse import ArgumentParser
 parser = ArgumentParser(description='make_secure_bl')
 parser.add_argument("--signing-key", type=str, default=None, help="signing key for secure bootloader")
 parser.add_argument("--debug", action='store_true', default=False, help="build with debug symbols")
+parser.add_argument("--periph-only", action='store_true', default=False, help="only build AP_Periph boards")
 parser.add_argument("pattern", type=str, default='*', help="board wildcard pattern")
 args = parser.parse_args()
 
@@ -27,6 +29,27 @@ os.environ['PYTHONUNBUFFERED'] = '1'
 
 failed_boards = set()
 
+def read_hwdef(filepath):
+    '''read a hwdef file recursively'''
+    fh = open(filepath)
+    ret = []
+    text = fh.readlines()
+    for line in text:
+        m = re.match(r"^\s*include\s+(.+)\s*$", line)
+        if m is not None:
+            ret += read_hwdef(os.path.join(os.path.dirname(filepath), m.group(1)))
+        else:
+            ret += [line]
+    return ret
+
+def is_ap_periph(hwdef):
+    '''return True if a hwdef is for a AP_Periph board'''
+    lines = read_hwdef(hwdef)
+    for line in lines:
+        if line.find('AP_PERIPH') != -1:
+            return True
+    return False
+
 def get_board_list():
     '''add boards based on existance of hwdef-bl.dat in subdirectories for ChibiOS'''
     board_list = []
@@ -34,6 +57,8 @@ def get_board_list():
     for d in dirlist:
         hwdef = os.path.join(dirname, d, 'hwdef-bl.dat')
         if os.path.exists(hwdef):
+            if args.periph_only and not is_ap_periph(hwdef):
+                continue
             board_list.append(d)
     return board_list