bin2array to dynamically create C array on build

resources/bin2array/bin2array.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+import binascii
+import sys
+import argparse
+
+parser = argparse.ArgumentParser(description='Convert binary file to C-style array initializer.')
+parser.add_argument("filename", help="the file to be converted")
+parser.add_argument("-O", "--output", help="write output to a file")
+parser.add_argument("-l", "--linebreak", type=int, help="add linebreak after every N element")
+parser.add_argument("-L", "--linebreak-string", default="\n", help="use what to break link, defaults to \"\\n\"")
+parser.add_argument("-S", "--separator-string", default=", ", help="use what to separate elements, defaults to \", \"")
+parser.add_argument("-H", "--element-prefix", default="0x", help="string to be added to the head of element, defaults to \"0x\"")
+parser.add_argument("-T", "--element-suffix", default="", help="string to be added to the tail of element, defaults to none")
+parser.add_argument("-U", "--force-uppercase", action='store_true', help="force uppercase HEX representation")
+parser.add_argument("-n", "--newline", action='store_true', help="add a newline on file end")
+args = parser.parse_args()
+
+def make_sublist_group(lst: list, grp: int) -> list:
+    """
+    Group list elements into sublists.
+
+    make_sublist_group([1, 2, 3, 4, 5, 6, 7], 3) = [[1, 2, 3], [4, 5, 6], 7]
+    """
+    return [lst[i:i+grp] for i in range(0, len(lst), grp)]
+
+def do_convension(content: bytes, to_uppercase: bool=False) -> str:
+    hexstr = binascii.hexlify(content).decode("UTF-8")
+    if to_uppercase:
+        hexstr = hexstr.upper()
+    array = [args.element_prefix + hexstr[i:i + 2] + args.element_suffix for i in range(0, len(hexstr), 2)]
+    if args.linebreak:
+        array = make_sublist_group(array, args.linebreak)
+    else:
+        array = [array,]
+    
+    return args.linebreak_string.join([args.separator_string.join(e) + args.separator_string for e in array])
+
+if __name__ == "__main__":
+    with open(args.filename, 'rb') as f:
+        file_content = f.read()
+    ret = do_convension(file_content, to_uppercase=args.force_uppercase)
+    if args.newline:
+        ret = ret + args.linebreak_string
+    if args.output:
+        with open(args.output, 'w') as f:
+            f.write(ret)
+    else:
+        print(ret)