62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
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#!/usr/bin/env python2
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# This script replaces prefixes of files, and symbols in that file.
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# Useful for creating different versions of the codebase that don't
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# conflict at compile time.
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#
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# example:
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# $ ./scripts/prefix.py lfs2
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import os
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import os.path
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import re
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import glob
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import itertools
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import tempfile
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import shutil
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import subprocess
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DEFAULT_PREFIX = "lfs"
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def subn(from_prefix, to_prefix, name):
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name, count1 = re.subn('\\b'+from_prefix, to_prefix, name)
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name, count2 = re.subn('\\b'+from_prefix.upper(), to_prefix.upper(), name)
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name, count3 = re.subn('\\B-D'+from_prefix.upper(),
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'-D'+to_prefix.upper(), name)
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return name, count1+count2+count3
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def main(from_prefix, to_prefix=None, files=None):
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if not to_prefix:
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from_prefix, to_prefix = DEFAULT_PREFIX, from_prefix
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if not files:
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files = subprocess.check_output([
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'git', 'ls-tree', '-r', '--name-only', 'HEAD']).split()
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for oldname in files:
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# Rename any matching file names
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newname, namecount = subn(from_prefix, to_prefix, oldname)
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if namecount:
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subprocess.check_call(['git', 'mv', oldname, newname])
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# Rename any prefixes in file
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count = 0
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with open(newname+'~', 'w') as tempf:
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with open(newname) as newf:
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for line in newf:
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line, n = subn(from_prefix, to_prefix, line)
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count += n
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tempf.write(line)
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shutil.copystat(newname, newname+'~')
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os.rename(newname+'~', newname)
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subprocess.check_call(['git', 'add', newname])
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# Summary
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print '%s: %d replacements' % (
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'%s -> %s' % (oldname, newname) if namecount else oldname,
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count)
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if __name__ == "__main__":
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import sys
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sys.exit(main(*sys.argv[1:]))
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