qmk info: Add --ascii flag (#10793)

* `qmk info`: Add `--ascii` flag

* Fix typo

* Force ASCII for Windows/MSYS2

* Make it gooder

* Remove redundant windows check

* ...And this too

* Make pytest work on Windows

lib/python/qmk/keyboard.py

@@ -7,6 +7,43 @@ from pathlib import Path
 from qmk.c_parse import parse_config_h_file
 from qmk.makefile import parse_rules_mk_file
 
+BOX_DRAWING_CHARACTERS = {
+    "unicode": {
+        "tl": "┌",
+        "tr": "┐",
+        "bl": "└",
+        "br": "┘",
+        "v": "│",
+        "h": "─",
+    },
+    "ascii": {
+        "tl": " ",
+        "tr": " ",
+        "bl": "|",
+        "br": "|",
+        "v": "|",
+        "h": "_",
+    },
+}
+
+base_path = os.path.join(os.getcwd(), "keyboards") + os.path.sep
+
+
+def _find_name(path):
+    """Determine the keyboard name by stripping off the base_path and rules.mk.
+    """
+    return path.replace(base_path, "").replace(os.path.sep + "rules.mk", "")
+
+
+def list_keyboards():
+    """Returns a list of all keyboards.
+    """
+    # We avoid pathlib here because this is performance critical code.
+    kb_wildcard = os.path.join(base_path, "**", "rules.mk")
+    paths = [path for path in glob(kb_wildcard, recursive=True) if 'keymaps' not in path]
+
+    return sorted(map(_find_name, paths))
+
 
 def config_h(keyboard):
     """Parses all the config.h files for a keyboard.
@@ -52,10 +89,12 @@ def rules_mk(keyboard):
     return rules
 
 
-def render_layout(layout_data, key_labels=None):
+def render_layout(layout_data, render_ascii, key_labels=None):
     """Renders a single layout.
     """
     textpad = [array('u', ' ' * 200) for x in range(50)]
+    style = 'ascii' if render_ascii else 'unicode'
+    box_chars = BOX_DRAWING_CHARACTERS[style]
 
     for key in layout_data:
         x = ceil(key.get('x', 0) * 4)
@@ -77,13 +116,13 @@ def render_layout(layout_data, key_labels=None):
             label = label[:label_len]
 
         label_blank = ' ' * label_len
-        label_border = '─' * label_len
+        label_border = box_chars['h'] * 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 + "┘")
+        top_line = array('u', box_chars['tl'] + label_border + box_chars['tr'])
+        lab_line = array('u', box_chars['v'] + label_middle + box_chars['v'])
+        mid_line = array('u', box_chars['v'] + label_blank + box_chars['v'])
+        bot_line = array('u', box_chars['bl'] + label_border + box_chars['br'])
 
         textpad[y][x:x + w] = top_line
         textpad[y + 1][x:x + w] = lab_line
@@ -99,13 +138,13 @@ def render_layout(layout_data, key_labels=None):
     return '\n'.join(lines)
 
 
-def render_layouts(info_json):
+def render_layouts(info_json, render_ascii):
     """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)
+        layouts[layout] = render_layout(layout_data, render_ascii)
 
     return layouts