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72 lines
2.4 KiB
72 lines
2.4 KiB
""" Functions for working with Makefiles
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"""
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import os
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import glob
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import re
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import qmk.path
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from qmk.errors import NoSuchKeyboardError
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def parse_rules_mk(file_path):
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""" Parse a rules.mk file
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Args:
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file_path: path to the rules.mk file
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Returns:
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a dictionary with the file's content
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"""
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# regex to match lines uncommented lines and get the data
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# group(1) = option's name
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# group(2) = operator (eg.: '=', '+=')
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# group(3) = value(s)
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rules_mk_regex = re.compile(r"^\s*(\w+)\s*([\?\:\+\-]?=)\s*(\S.*?)(?=\s*(\#|$))")
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parsed_file = dict()
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mk_content = qmk.path.file_lines(file_path)
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for line in mk_content:
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found = rules_mk_regex.search(line)
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if found:
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parsed_file[found.group(1)] = dict(operator = found.group(2), value = found.group(3))
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return parsed_file
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def merge_rules_mk_files(base, revision):
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""" Merge a keyboard revision's rules.mk file with
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the 'base' rules.mk file
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Args:
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base: the base rules.mk file's content as dictionary
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revision: the revision's rules.mk file's content as dictionary
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Returns:
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a dictionary with the merged content
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"""
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return {**base, **revision}
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def get_rules_mk(keyboard, revision = ""):
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""" Get a rules.mk for a keyboard
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Args:
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keyboard: name of the keyboard
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revision: revision of the keyboard
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Returns:
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a dictionary with the content of the rules.mk file
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"""
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base_path = os.path.join(os.getcwd(), "keyboards", keyboard) + os.path.sep
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rules_mk = dict()
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if os.path.exists(base_path + os.path.sep + revision):
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rules_mk_path_wildcard = os.path.join(base_path, "**", "rules.mk")
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rules_mk_regex = re.compile(r"^" + base_path + "(?:" + revision + os.path.sep + ")?rules.mk")
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paths = [path for path in glob.iglob(rules_mk_path_wildcard, recursive = True) if rules_mk_regex.search(path)]
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for file_path in paths:
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rules_mk[revision if revision in file_path else "base"] = parse_rules_mk(file_path)
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else:
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raise NoSuchKeyboardError("The requested keyboard and/or revision does not exist.")
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# if the base or the revision directory does not contain a rules.mk
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if len(rules_mk) == 1:
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rules_mk = rules_mk[revision]
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# if both directories contain rules.mk files
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elif len(rules_mk) == 2:
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rules_mk = merge_rules_mk_files(rules_mk["base"], rules_mk[revision])
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return rules_mk
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