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#! /usr/bin/env python
"""Show file statistics by extension."""
import os
import sys
class Stats:
def __init__(self):
self.stats = {}
def statargs(self, args):
for arg in args:
if os.path.isdir(arg):
self.statdir(arg)
elif os.path.isfile(arg):
self.statfile(arg)
else:
sys.stderr.write("Can't find %s\n" % file)
self.addstats("<???>", "unknown", 1)
def statdir(self, dir):
self.addstats("<dir>", "dirs", 1)
try:
names = os.listdir(dir)
except os.error, err:
sys.stderr.write("Can't list %s: %s\n" % (file, err))
self.addstats(ext, "unlistable", 1)
return
names.sort()
for name in names:
full = os.path.join(dir, name)
if os.path.islink(full):
self.addstats("<lnk>", "links", 1)
elif os.path.isdir(full):
self.statdir(full)
else:
self.statfile(full)
def statfile(self, file):
head, ext = os.path.splitext(file)
head, base = os.path.split(file)
if ext == base:
ext = "" # .cvsignore is deemed not to have an extension
self.addstats(ext, "files", 1)
try:
f = open(file, "rb")
except IOError, err:
sys.stderr.write("Can't open %s: %s\n" % (file, err))
self.addstats(ext, "unopenable", 1)
return
data = f.read()
f.close()
self.addstats(ext, "bytes", len(data))
if '\0' in data:
self.addstats(ext, "binary", 1)
return
if not data:
self.addstats(ext, "empty", 1)
#self.addstats(ext, "chars", len(data))
lines = data.splitlines()
self.addstats(ext, "lines", len(lines))
del lines
words = data.split()
self.addstats(ext, "words", len(words))
def addstats(self, ext, key, n):
d = self.stats.setdefault(ext, {})
d[key] = d.get(key, 0) + n
def report(self):
totals = {}
exts = self.stats.keys()
exts.sort()
# Get the column keys
columns = {}
for ext in exts:
columns.update(self.stats[ext])
cols = columns.keys()
cols.sort()
minwidth = 7
extwidth = max([len(ext) for ext in exts])
print "%*s" % (extwidth, "ext"),
for col in cols:
width = max(len(col), minwidth)
print "%*s" % (width, col),
print
for ext in exts:
print "%*s" % (extwidth, ext),
for col in cols:
width = max(len(col), minwidth)
value = self.stats[ext].get(col)
if value is None:
s = ""
else:
s = "%d" % value
totals[col] = totals.get(col, 0) + value
print "%*s" % (width, s),
print
print "%*s" % (extwidth, "TOTAL"),
for col in cols:
width = max(len(col), minwidth)
print "%*s" % (width, totals[col]),
print
def main():
args = sys.argv[1:]
if not args:
args = [os.curdir]
s = Stats()
s.statargs(args)
s.report()
if __name__ == "__main__":
main()
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