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- """ Functions for working with Makefiles
- """
- from pathlib import Path
- 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 = {}
- file = Path(file)
- if file.exists():
- rules_mk_lines = file.read_text().split("\n")
- for line in rules_mk_lines:
-
- if line.strip().startswith("#"):
- continue
-
- if '#' in line:
- line = line[:line.index('#')].strip()
- if '=' in line:
-
- 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()
-
- 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
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