mirror of
https://github.com/elliotnunn/tbxi.git
synced 2024-06-01 09:41:28 +00:00
103 lines
2.6 KiB
Python
103 lines
2.6 KiB
Python
import importlib
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from subprocess import run, PIPE
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import fnmatch
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import os
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from os import path
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FORMATS = '''
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bootinfo
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parcels
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powerpc
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supermario
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'''.split()
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class WrongFormat(Exception):
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pass
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def strip_patch_name_ext(name):
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# We need to match patch filenames to other filenames using fnmatch,
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# but first we need to remove '.patch.sh' or '.patch' from the title
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# If it isn't a patch, return None
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for i in range(2):
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name, ext = path.splitext(name)
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if ext.lower() == '.patch': return name
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def build_dir(p):
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for fmt in FORMATS:
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mod = importlib.import_module('..%s_build' % fmt, __name__)
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try:
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data = mod.build(p)
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except WrongFormat:
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continue
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print(fmt)
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return data
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raise WrongFormat
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def build_path(p):
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parent = path.dirname(path.abspath(p))
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name = path.basename(path.abspath(p))
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# try building the file from a directory
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for np in [p + '.src', p]:
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try:
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data = build_dir(np)
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except WrongFormat:
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pass
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else:
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break
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else:
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# fall back on just reading the file (boring, I know!)
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with open(p, 'rb') as f:
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data = f.read()
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# Search the directory of the file for executable patches
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for sib in sorted(os.scandir(parent), key=lambda ent: ent.name):
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# Does the filename match?
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pattern = strip_patch_name_ext(sib.name)
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if pattern and fnmatch.fnmatch(name, pattern):
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# This is a bit unsafe, so prompt the user (to pipe in `yes`...)
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if input('Apply %s to %s? [y/N] ' % (sib.name, name)).lower().startswith('y'):
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# The script is told the original filename, but it should READ FROM STDIN!
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cmd = [sib.path, name]
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# Run the script as a unixy filter
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result = run(cmd, cwd=parent, input=data, stdout=PIPE)
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# Return 0 to apply stdout, 1 to nop, anything else to fail
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if result.returncode == 0:
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data = result.stdout
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elif result.returncode == 1:
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pass
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else:
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result.check_returncode()
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return data
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def dump(binary, dest_path, toplevel=False):
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if not toplevel:
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with open(dest_path, 'wb') as f:
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f.write(binary)
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dest_path += '.src'
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for fmt in FORMATS:
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mod = importlib.import_module('..%s_dump' % fmt, __name__)
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try:
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mod.dump(binary, dest_path)
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print(fmt)
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break
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except WrongFormat:
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pass
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