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#!/usr/bin/python
'''
Determine which files are contributing the most to the size of a tags file. You
can specify the location of the tags file as a command line argument. If you
pass a numeric argument, no more than that many files will be reported.
Author: Peter Odding <peter@peterodding.com>
Last Change: May 11, 2011
URL: https://github.com/xolox/vim-easytags/blob/master/why-so-slow.py
'''
import os, sys
tagsfile = '~/.vimtags'
topfiles = 10
for arg in sys.argv[1:]:
if os.path.isfile(arg):
tagsfile = arg
else:
topfiles = int(arg)
infile = open(os.path.expanduser(tagsfile))
counters = {}
for line in infile:
fields = line.split('\t')
filename = fields[1]
counters[filename] = counters.get(filename, 0) + len(line)
infile.close()
sortedfiles = sorted([(s, n) for (n, s) in counters.iteritems()], reverse=True)
for filesize, filename in sortedfiles[:topfiles]:
if filename.startswith(os.environ['HOME']):
filename = filename.replace(os.environ['HOME'], '~')
print '%i KB - %s' % (filesize / 1024, filename)
# vim: ts=2 sw=2 et
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