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133 lines
3.8 KiB
133 lines
3.8 KiB
6 years ago
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#! /usr/bin/env python3
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"""Show file statistics by extension."""
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import os
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import sys
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class Stats:
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def __init__(self):
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self.stats = {}
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def statargs(self, args):
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for arg in args:
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if os.path.isdir(arg):
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self.statdir(arg)
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elif os.path.isfile(arg):
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self.statfile(arg)
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else:
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sys.stderr.write("Can't find %s\n" % arg)
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self.addstats("<???>", "unknown", 1)
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def statdir(self, dir):
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self.addstats("<dir>", "dirs", 1)
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try:
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names = os.listdir(dir)
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except OSError as err:
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sys.stderr.write("Can't list %s: %s\n" % (dir, err))
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self.addstats("<dir>", "unlistable", 1)
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return
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for name in sorted(names):
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if name.startswith(".#"):
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continue # Skip CVS temp files
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if name.endswith("~"):
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continue # Skip Emacs backup files
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full = os.path.join(dir, name)
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if os.path.islink(full):
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self.addstats("<lnk>", "links", 1)
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elif os.path.isdir(full):
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self.statdir(full)
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else:
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self.statfile(full)
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def statfile(self, filename):
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head, ext = os.path.splitext(filename)
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head, base = os.path.split(filename)
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if ext == base:
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ext = "" # E.g. .cvsignore is deemed not to have an extension
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ext = os.path.normcase(ext)
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if not ext:
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ext = "<none>"
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self.addstats(ext, "files", 1)
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try:
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with open(filename, "rb") as f:
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data = f.read()
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except IOError as err:
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sys.stderr.write("Can't open %s: %s\n" % (filename, err))
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self.addstats(ext, "unopenable", 1)
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return
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self.addstats(ext, "bytes", len(data))
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if b'\0' in data:
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self.addstats(ext, "binary", 1)
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return
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if not data:
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self.addstats(ext, "empty", 1)
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# self.addstats(ext, "chars", len(data))
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lines = str(data, "latin-1").splitlines()
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self.addstats(ext, "lines", len(lines))
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del lines
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words = data.split()
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self.addstats(ext, "words", len(words))
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def addstats(self, ext, key, n):
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d = self.stats.setdefault(ext, {})
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d[key] = d.get(key, 0) + n
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def report(self):
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exts = sorted(self.stats)
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# Get the column keys
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columns = {}
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for ext in exts:
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columns.update(self.stats[ext])
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cols = sorted(columns)
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colwidth = {}
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colwidth["ext"] = max(map(len, exts))
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minwidth = 6
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self.stats["TOTAL"] = {}
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for col in cols:
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total = 0
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cw = max(minwidth, len(col))
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for ext in exts:
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value = self.stats[ext].get(col)
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if value is None:
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w = 0
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else:
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w = len("%d" % value)
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total += value
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cw = max(cw, w)
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cw = max(cw, len(str(total)))
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colwidth[col] = cw
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self.stats["TOTAL"][col] = total
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exts.append("TOTAL")
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for ext in exts:
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self.stats[ext]["ext"] = ext
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cols.insert(0, "ext")
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def printheader():
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for col in cols:
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print("%*s" % (colwidth[col], col), end=' ')
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print()
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printheader()
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for ext in exts:
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for col in cols:
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value = self.stats[ext].get(col, "")
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print("%*s" % (colwidth[col], value), end=' ')
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print()
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printheader() # Another header at the bottom
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def main():
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args = sys.argv[1:]
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if not args:
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args = [os.curdir]
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s = Stats()
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s.statargs(args)
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s.report()
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if __name__ == "__main__":
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main()
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