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qmk_firmware/lib/python/qmk/makefile.py
Erovia 988bfffca2 Major rework, no regex/globbing, more walking
Instead of using regexes and globbing to find the rules.mk and keymap.c
files, walk the directory tree to find them.
Also, do away with the concept of revision.
2020-02-15 15:19:03 -08:00

80 lines
2.5 KiB
Python

""" Functions for working with Makefiles
"""
import os
import qmk.path
from qmk.errors import NoSuchKeyboardError
def parse_rules_mk_file(file, rules_mk=None):
"""Turn a rules.mk file into a dictionary.
Args:
file: path to the rules.mk file
rules_mk: already parsed rules.mk the new file should be merged with
Returns:
a dictionary with the file's content
"""
if not rules_mk:
rules_mk = {}
if os.path.exists(file):
rules_mk_lines = qmk.path.file_lines(file)
for line in rules_mk_lines:
# Filter out comments
if line.strip().startswith("#"):
continue
# Strip in-line comments
if '#' in line:
line = line[:line.index('#')].strip()
if '=' in line:
# Append
if '+=' in line:
key, value = line.split('+=', 1)
if key.strip() not in rules_mk:
rules_mk[key.strip()] = value.strip()
else:
rules_mk[key.strip()] += ' ' + value.strip()
# Set if absent
elif "?=" in line:
key, value = line.split('?=', 1)
if key.strip() not in rules_mk:
rules_mk[key.strip()] = value.strip()
else:
if ":=" in line:
line.replace(":","")
key, value = line.split('=', 1)
rules_mk[key.strip()] = value.strip()
return rules_mk
def get_rules_mk(keyboard):
""" Get a rules.mk for a keyboard
Args:
keyboard: name of the keyboard
Raises:
NoSuchKeyboardError: when the keyboard does not exists
Returns:
a dictionary with the content of the rules.mk file
"""
# Start with qmk_firmware/keyboards
kb_path = os.path.join(os.getcwd(), "keyboards")
# walk down the directory tree
# and collect all rules.mk files
if os.path.exists(os.path.join(kb_path, keyboard)):
rules_mk = dict()
for directory in keyboard.split(os.path.sep):
kb_path = os.path.join(kb_path, directory)
rules_mk_path = os.path.join(kb_path, "rules.mk")
if os.path.exists(rules_mk_path):
rules_mk = parse_rules_mk_file(rules_mk_path, rules_mk)
else:
raise NoSuchKeyboardError("The requested keyboard and/or revision does not exist.")
return rules_mk