| #! /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" % arg) |
| 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" % (dir, err)) |
| self.addstats("<dir>", "unlistable", 1) |
| return |
| names.sort() |
| for name in names: |
| if name.startswith(".#"): |
| continue # Skip CVS temp files |
| if name.endswith("~"): |
| continue# Skip Emacs backup files |
| 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, filename): |
| head, ext = os.path.splitext(filename) |
| head, base = os.path.split(filename) |
| if ext == base: |
| ext = "" # E.g. .cvsignore is deemed not to have an extension |
| ext = os.path.normcase(ext) |
| if not ext: |
| ext = "<none>" |
| self.addstats(ext, "files", 1) |
| try: |
| f = open(filename, "rb") |
| except IOError, err: |
| sys.stderr.write("Can't open %s: %s\n" % (filename, 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): |
| 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() |
| colwidth = {} |
| colwidth["ext"] = max([len(ext) for ext in exts]) |
| minwidth = 6 |
| self.stats["TOTAL"] = {} |
| for col in cols: |
| total = 0 |
| cw = max(minwidth, len(col)) |
| for ext in exts: |
| value = self.stats[ext].get(col) |
| if value is None: |
| w = 0 |
| else: |
| w = len("%d" % value) |
| total += value |
| cw = max(cw, w) |
| cw = max(cw, len(str(total))) |
| colwidth[col] = cw |
| self.stats["TOTAL"][col] = total |
| exts.append("TOTAL") |
| for ext in exts: |
| self.stats[ext]["ext"] = ext |
| cols.insert(0, "ext") |
| def printheader(): |
| for col in cols: |
| print "%*s" % (colwidth[col], col), |
| print |
| printheader() |
| for ext in exts: |
| for col in cols: |
| value = self.stats[ext].get(col, "") |
| print "%*s" % (colwidth[col], value), |
| print |
| printheader() # Another header at the bottom |
| |
| def main(): |
| args = sys.argv[1:] |
| if not args: |
| args = [os.curdir] |
| s = Stats() |
| s.statargs(args) |
| s.report() |
| |
| if __name__ == "__main__": |
| main() |