mirror of
https://github.com/pret/pokegold-spaceworld.git
synced 2026-03-23 10:35:04 -05:00
83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""Get all the dependencies of RGBDS assembly files recursively,
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and output them using Make dependency syntax.
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"""
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# Script adapted from the Telefang disassembly / fan translation project.
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from __future__ import print_function
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from __future__ import unicode_literals
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import argparse
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import os
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import re
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import sys
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if sys.version_info[0] < 3:
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from codecs import open
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INCLUDE_RE = re.compile(r"^(?:[a-zA-Z0-9_.]+:?:?)?\s*(INC(?:LUDE|BIN))", re.IGNORECASE)
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def dependencies_in(asm_file_paths, build_dirs=[]):
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asm_file_paths = list(asm_file_paths)
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dependencies = {}
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for path in asm_file_paths:
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if path not in dependencies:
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asm_dependencies, bin_dependencies = shallow_dependencies_of(path, build_dirs)
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dependencies[path] = asm_dependencies | bin_dependencies
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asm_file_paths += asm_dependencies
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return dependencies
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def shallow_dependencies_of(asm_file_path, build_dirs=[]):
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asm_dependencies = set()
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bin_dependencies = set()
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with open(asm_file_path, 'r', encoding='utf-8') as f:
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for line in f:
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m = INCLUDE_RE.match(line)
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if m is None:
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continue
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keyword = m.group(1).upper()
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line = line.split(';', 1)[0]
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# RGBDS treats absolute(-looking) paths as relative,
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# so leading slashes should be stripped.
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path = line[line.index('"') + 1:line.rindex('"')].lstrip('/')
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if keyword == 'INCLUDE':
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asm_dependencies.add(path)
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else:
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if os.path.isfile(path) or not build_dirs:
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bin_dependencies.add(path)
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else:
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bin_dependencies.update(os.path.join(d, path) for d in build_dirs)
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return asm_dependencies, bin_dependencies
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def main(argv):
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script_name = os.path.basename(__file__)
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parser = argparse.ArgumentParser(prog=script_name, add_help=False)
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parser.add_argument('-h', '--help', action='help', help="Show this help and exit.")
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parser.add_argument('-b', metavar="build directories", action='append', default=[],
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help="Build directory to generate dependencies for "
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"if files don't exist at the exact path specified. "
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"Multiple build directories may be specified.")
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parser.add_argument('files', metavar='file', nargs='+',
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help="An assembly file to generate dependencies for.")
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args = parser.parse_args(argv)
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for path, dependencies in dependencies_in(args.files, args.b).items():
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# It seems that if A depends on B which depends on C, and
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# C is modified, Make needs you to change the modification
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# time of B too. That's the reason for the "@touch $@".
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# This does mean mtimes on .asm files are updated when building,
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# but the alternative opens up a whole can of problems.
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if dependencies:
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print("{}: {}\n\t@touch $@".format(path, ' '.join(dependencies)))
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if __name__ == '__main__':
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main(sys.argv[1:])
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