1 files changed, 154 insertions, 0 deletions
diff --git a/lib/python/qmk/cli/generate/config_h.py b/lib/python/qmk/cli/generate/config_h.py
new file mode 100755
index 0000000000..54cd5b96a8
--- /dev/null
+++ b/lib/python/qmk/cli/generate/config_h.py
@@ -0,0 +1,154 @@
+"""Used by the make system to generate info_config.h from info.json.
+"""
+from pathlib import Path
+
+from dotty_dict import dotty
+from milc import cli
+
+from qmk.decorators import automagic_keyboard, automagic_keymap
+from qmk.info import info_json
+from qmk.json_schema import json_load
+from qmk.keyboard import keyboard_completer, keyboard_folder
+from qmk.path import is_keyboard, normpath
+
+
+def direct_pins(direct_pins):
+    """Return the config.h lines that set the direct pins.
+    """
+    rows = []
+
+    for row in direct_pins:
+        cols = ','.join(map(str, [col or 'NO_PIN' for col in row]))
+        rows.append('{' + cols + '}')
+
+    col_count = len(direct_pins[0])
+    row_count = len(direct_pins)
+
+    return """
+#ifndef MATRIX_COLS
+#   define MATRIX_COLS %s
+#endif // MATRIX_COLS
+
+#ifndef MATRIX_ROWS
+#   define MATRIX_ROWS %s
+#endif // MATRIX_ROWS
+
+#ifndef DIRECT_PINS
+#   define DIRECT_PINS {%s}
+#endif // DIRECT_PINS
+""" % (col_count, row_count, ','.join(rows))
+
+
+def pin_array(define, pins):
+    """Return the config.h lines that set a pin array.
+    """
+    pin_num = len(pins)
+    pin_array = ', '.join(map(str, [pin or 'NO_PIN' for pin in pins]))
+
+    return f"""
+#ifndef {define}S
+#   define {define}S {pin_num}
+#endif // {define}S
+
+#ifndef {define}_PINS
+#   define {define}_PINS {{ {pin_array} }}
+#endif // {define}_PINS
+"""
+
+
+def matrix_pins(matrix_pins):
+    """Add the matrix config to the config.h.
+    """
+    pins = []
+
+    if 'direct' in matrix_pins:
+        pins.append(direct_pins(matrix_pins['direct']))
+
+    if 'cols' in matrix_pins:
+        pins.append(pin_array('MATRIX_COL', matrix_pins['cols']))
+
+    if 'rows' in matrix_pins:
+        pins.append(pin_array('MATRIX_ROW', matrix_pins['rows']))
+
+    return '\n'.join(pins)
+
+
+@cli.argument('-o', '--output', arg_only=True, type=normpath, help='File to write to')
+@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help="Quiet mode, only output error messages")
+@cli.argument('-kb', '--keyboard', type=keyboard_folder, completer=keyboard_completer, help='Keyboard to generate config.h for.')
+@cli.subcommand('Used by the make system to generate info_config.h from info.json', hidden=True)
+@automagic_keyboard
+@automagic_keymap
+def generate_config_h(cli):
+    """Generates the info_config.h file.
+    """
+    # Determine our keyboard(s)
+    if not cli.config.generate_config_h.keyboard:
+        cli.log.error('Missing parameter: --keyboard')
+        cli.subcommands['info'].print_help()
+        return False
+
+    if not is_keyboard(cli.config.generate_config_h.keyboard):
+        cli.log.error('Invalid keyboard: "%s"', cli.config.generate_config_h.keyboard)
+        return False
+
+    # Build the info_config.h file.
+    kb_info_json = dotty(info_json(cli.config.generate_config_h.keyboard))
+    info_config_map = json_load(Path('data/mappings/info_config.json'))
+
+    config_h_lines = ['/* This file was generated by `qmk generate-config-h`. Do not edit or copy.' ' */', '', '#pragma once']
+
+    # Iterate through the info_config map to generate basic things
+    for config_key, info_dict in info_config_map.items():
+        info_key = info_dict['info_key']
+        key_type = info_dict.get('value_type', 'str')
+        to_config = info_dict.get('to_config', True)
+
+        if not to_config:
+            continue
+
+        try:
+            config_value = kb_info_json[info_key]
+        except KeyError:
+            continue
+
+        if key_type.startswith('array'):
+            config_h_lines.append('')
+            config_h_lines.append(f'#ifndef {config_key}')
+            config_h_lines.append(f'#   define {config_key} {{ {", ".join(map(str, config_value))} }}')
+            config_h_lines.append(f'#endif // {config_key}')
+        elif key_type == 'bool':
+            if config_value:
+                config_h_lines.append('')
+                config_h_lines.append(f'#ifndef {config_key}')
+                config_h_lines.append(f'#   define {config_key}')
+                config_h_lines.append(f'#endif // {config_key}')
+        elif key_type == 'mapping':
+            for key, value in config_value.items():
+                config_h_lines.append('')
+                config_h_lines.append(f'#ifndef {key}')
+                config_h_lines.append(f'#   define {key} {value}')
+                config_h_lines.append(f'#endif // {key}')
+        else:
+            config_h_lines.append('')
+            config_h_lines.append(f'#ifndef {config_key}')
+            config_h_lines.append(f'#   define {config_key} {config_value}')
+            config_h_lines.append(f'#endif // {config_key}')
+
+    if 'matrix_pins' in kb_info_json:
+        config_h_lines.append(matrix_pins(kb_info_json['matrix_pins']))
+
+    # Show the results
+    config_h = '\n'.join(config_h_lines)
+
+    if cli.args.output:
+        cli.args.output.parent.mkdir(parents=True, exist_ok=True)
+        if cli.args.output.exists():
+            cli.args.output.replace(cli.args.output.parent / (cli.args.output.name + '.bak'))
+        cli.args.output.write_text(config_h)
+
+        if not cli.args.quiet:
+            cli.log.info('Wrote info_config.h to %s.', cli.args.output)
+
+    else:
+        print(config_h)