[CLI] Add a subcommand for getting information about a keyboard (#8666)

You can now use `qmk info` to get information about keyboards and keymaps.

Co-authored-by: Erovia <Erovia@users.noreply.github.com>

lib/python/qmk/keyboard.py

@@ -0,0 +1,111 @@
+"""Functions that help us work with keyboards.
+"""
+from array import array
+from math import ceil
+from pathlib import Path
+
+from qmk.c_parse import parse_config_h_file
+from qmk.makefile import parse_rules_mk_file
+
+
+def config_h(keyboard):
+    """Parses all the config.h files for a keyboard.
+
+    Args:
+        keyboard: name of the keyboard
+
+    Returns:
+        a dictionary representing the content of the entire config.h tree for a keyboard
+    """
+    config = {}
+    cur_dir = Path('keyboards')
+    rules = rules_mk(keyboard)
+    keyboard = Path(rules['DEFAULT_FOLDER'] if 'DEFAULT_FOLDER' in rules else keyboard)
+
+    for dir in keyboard.parts:
+        cur_dir = cur_dir / dir
+        config = {**config, **parse_config_h_file(cur_dir / 'config.h')}
+
+    return config
+
+
+def rules_mk(keyboard):
+    """Get a rules.mk for a keyboard
+
+    Args:
+        keyboard: name of the keyboard
+
+    Returns:
+        a dictionary representing the content of the entire rules.mk tree for a keyboard
+    """
+    keyboard = Path(keyboard)
+    cur_dir = Path('keyboards')
+    rules = parse_rules_mk_file(cur_dir / keyboard / 'rules.mk')
+
+    if 'DEFAULT_FOLDER' in rules:
+        keyboard = Path(rules['DEFAULT_FOLDER'])
+
+    for i, dir in enumerate(keyboard.parts):
+        cur_dir = cur_dir / dir
+        rules = parse_rules_mk_file(cur_dir / 'rules.mk', rules)
+
+    return rules
+
+
+def render_layout(layout_data, key_labels=None):
+    """Renders a single layout.
+    """
+    textpad = [array('u', ' ' * 200) for x in range(50)]
+
+    for key in layout_data:
+        x = ceil(key.get('x', 0) * 4)
+        y = ceil(key.get('y', 0) * 3)
+        w = ceil(key.get('w', 1) * 4)
+        h = ceil(key.get('h', 1) * 3)
+
+        if key_labels:
+            label = key_labels.pop(0)
+            if label.startswith('KC_'):
+                label = label[3:]
+        else:
+            label = key.get('label', '')
+
+        label_len = w - 2
+        label_leftover = label_len - len(label)
+
+        if len(label) > label_len:
+            label = label[:label_len]
+
+        label_blank = ' ' * label_len
+        label_border = '─' * label_len
+        label_middle = label + ' '*label_leftover  # noqa: yapf insists there be no whitespace around *
+
+        top_line = array('u', '┌' + label_border + '┐')
+        lab_line = array('u', '│' + label_middle + '│')
+        mid_line = array('u', '│' + label_blank + '│')
+        bot_line = array('u', '└' + label_border + "┘")
+
+        textpad[y][x:x + w] = top_line
+        textpad[y + 1][x:x + w] = lab_line
+        for i in range(h - 3):
+            textpad[y + i + 2][x:x + w] = mid_line
+        textpad[y + h - 1][x:x + w] = bot_line
+
+    lines = []
+    for line in textpad:
+        if line.tounicode().strip():
+            lines.append(line.tounicode().rstrip())
+
+    return '\n'.join(lines)
+
+
+def render_layouts(info_json):
+    """Renders all the layouts from an `info_json` structure.
+    """
+    layouts = {}
+
+    for layout in info_json['layouts']:
+        layout_data = info_json['layouts'][layout]['layout']
+        layouts[layout] = render_layout(layout_data)
+
+    return layouts