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#!/usr/bin/env python
#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 The SCons Foundation
#
# Count statistics about SCons test and source files. This must be run
# against a fully-populated tree (for example, one that's been freshly
# checked out).
#
# A test file is anything under the src/ directory that begins with
# 'test_' or ends in 'Tests.py', or anything under the test/ directory
# that ends in '.py'. Note that runtest.py script does *not*, by default,
# consider the files that begin with 'test_' to be tests, because they're
# tests of SCons packaging and installation, not functional tests of
# SCons code.
#
# A source file is anything under the src/engine/ or src/script/
# directories that ends in '.py' but does NOT begin with 'test_'
# or end in 'Tests.py'.
#
# We report the number of tests and sources, the total number of lines
# in each category, the number of non-blank lines, and the number of
# non-comment lines. The last figure (non-comment) lines is the most
# interesting one for most purposes.
from __future__ import division
__revision__ = "bin/linecount.py 5357 2011/09/09 21:31:03 bdeegan"
import os.path
fmt = "%-16s %5s %7s %9s %11s %11s"
class Collection(object):
def __init__(self, name, files=None, pred=None):
self._name = name
if files is None:
files = []
self.files = files
if pred is None:
pred = lambda x: True
self.pred = pred
def __call__(self, fname):
return self.pred(fname)
def __len__(self):
return len(self.files)
def collect(self, directory):
for dirpath, dirnames, filenames in os.walk(directory):
try: dirnames.remove('.svn')
except ValueError: pass
self.files.extend([ os.path.join(dirpath, f)
for f in filenames if self.pred(f) ])
def lines(self):
try:
return self._lines
except AttributeError:
self._lines = lines = []
for file in self.files:
file_lines = open(file).readlines()
lines.extend([s.lstrip() for s in file_lines])
return lines
def non_blank(self):
return [s for s in self.lines() if s != '']
def non_comment(self):
return [s for s in self.lines() if s == '' or s[0] != '#']
def non_blank_non_comment(self):
return [s for s in self.lines() if s != '' and s[0] != '#']
def printables(self):
return (self._name + ':',
len(self.files),
len(self.lines()),
len(self.non_blank()),
len(self.non_comment()),
len(self.non_blank_non_comment()))
def is_Tests_py(x):
return x[-8:] == 'Tests.py'
def is_test_(x):
return x[:5] == 'test_'
def is_python(x):
return x[-3:] == '.py'
def is_source(x):
return is_python(x) and not is_Tests_py(x) and not is_test_(x)
src_Tests_py_tests = Collection('src/ *Tests.py', pred=is_Tests_py)
src_test_tests = Collection('src/ test_*.py', pred=is_test_)
test_tests = Collection('test/ tests', pred=is_python)
sources = Collection('sources', pred=is_source)
src_Tests_py_tests.collect('src')
src_test_tests.collect('src')
test_tests.collect('test')
sources.collect('src/engine')
sources.collect('src/script')
src_tests = Collection('src/ tests', src_Tests_py_tests.files
+ src_test_tests.files)
all_tests = Collection('all tests', src_tests.files + test_tests.files)
def ratio(over, under):
return "%.2f" % (float(len(over)) / float(len(under)))
print fmt % ('', '', '', '', '', 'non-blank')
print fmt % ('', 'files', 'lines', 'non-blank', 'non-comment', 'non-comment')
print
print fmt % src_Tests_py_tests.printables()
print fmt % src_test_tests.printables()
print
print fmt % src_tests.printables()
print fmt % test_tests.printables()
print
print fmt % all_tests.printables()
print fmt % sources.printables()
print
print fmt % ('ratio:',
ratio(all_tests, sources),
ratio(all_tests.lines(), sources.lines()),
ratio(all_tests.non_blank(), sources.non_blank()),
ratio(all_tests.non_comment(), sources.non_comment()),
ratio(all_tests.non_blank_non_comment(),
sources.non_blank_non_comment())
)
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