Try to pass repo.ui to reposetup hooks
The ui object we received in this function may belong to another repo,
which could be confusing from the hook point of view. Trying to use
the ui object from the newly created repo should avoid this confusion.
#!/usr/bin/python
#
# Perforce Defect Tracking Integration Project
# <http://www.ravenbrook.com/project/p4dti/>
#
# COVERAGE.PY -- COVERAGE TESTING
#
# Gareth Rees, Ravenbrook Limited, 2001-12-04
# Ned Batchelder, 2004-12-12
# http://nedbatchelder.com/code/modules/coverage.html
#
#
# 1. INTRODUCTION
#
# This module provides coverage testing for Python code.
#
# The intended readership is all Python developers.
#
# This document is not confidential.
#
# See [GDR 2001-12-04a] for the command-line interface, programmatic
# interface and limitations. See [GDR 2001-12-04b] for requirements and
# design.
"""Usage:
coverage.py -x MODULE.py [ARG1 ARG2 ...]
Execute module, passing the given command-line arguments, collecting
coverage data.
coverage.py -e
Erase collected coverage data.
coverage.py -r [-m] [-o dir1,dir2,...] FILE1 FILE2 ...
Report on the statement coverage for the given files. With the -m
option, show line numbers of the statements that weren't executed.
coverage.py -a [-d dir] [-o dir1,dir2,...] FILE1 FILE2 ...
Make annotated copies of the given files, marking statements that
are executed with > and statements that are missed with !. With
the -d option, make the copies in that directory. Without the -d
option, make each copy in the same directory as the original.
-o dir,dir2,...
Omit reporting or annotating files when their filename path starts with
a directory listed in the omit list.
e.g. python coverage.py -i -r -o c:\python23,lib\enthought\traits
Coverage data is saved in the file .coverage by default. Set the
COVERAGE_FILE environment variable to save it somewhere else."""
__version__ = "2.5.20051204" # see detailed history at the end of this file.
import compiler
import compiler.visitor
import os
import re
import string
import sys
import threading
import types
# 2. IMPLEMENTATION
#
# This uses the "singleton" pattern.
#
# The word "morf" means a module object (from which the source file can
# be deduced by suitable manipulation of the __file__ attribute) or a
# filename.
#
# When we generate a coverage report we have to canonicalize every
# filename in the coverage dictionary just in case it refers to the
# module we are reporting on. It seems a shame to throw away this
# information so the data in the coverage dictionary is transferred to
# the 'cexecuted' dictionary under the canonical filenames.
#
# The coverage dictionary is called "c" and the trace function "t". The
# reason for these short names is that Python looks up variables by name
# at runtime and so execution time depends on the length of variables!
# In the bottleneck of this application it's appropriate to abbreviate
# names to increase speed.
class StatementFindingAstVisitor(compiler.visitor.ASTVisitor):
def __init__(self, statements, excluded, suite_spots):
compiler.visitor.ASTVisitor.__init__(self)
self.statements = statements
self.excluded = excluded
self.suite_spots = suite_spots
self.excluding_suite = 0
def doRecursive(self, node):
self.recordNodeLine(node)
for n in node.getChildNodes():
self.dispatch(n)
visitStmt = visitModule = doRecursive
def doCode(self, node):
if hasattr(node, 'decorators') and node.decorators:
self.dispatch(node.decorators)
self.doSuite(node, node.code)
visitFunction = visitClass = doCode
def getFirstLine(self, node):
# Find the first line in the tree node.
lineno = node.lineno
for n in node.getChildNodes():
f = self.getFirstLine(n)
if lineno and f:
lineno = min(lineno, f)
else:
lineno = lineno or f
return lineno
def getLastLine(self, node):
# Find the first line in the tree node.
lineno = node.lineno
for n in node.getChildNodes():
lineno = max(lineno, self.getLastLine(n))
return lineno
def doStatement(self, node):
self.recordLine(self.getFirstLine(node))
visitAssert = visitAssign = visitAssTuple = visitDiscard = visitPrint = \
visitPrintnl = visitRaise = visitSubscript = visitDecorators = \
doStatement
def recordNodeLine(self, node):
return self.recordLine(node.lineno)
def recordLine(self, lineno):
# Returns a bool, whether the line is included or excluded.
if lineno:
# Multi-line tests introducing suites have to get charged to their
# keyword.
if lineno in self.suite_spots:
lineno = self.suite_spots[lineno][0]
# If we're inside an exluded suite, record that this line was
# excluded.
if self.excluding_suite:
self.excluded[lineno] = 1
return 0
# If this line is excluded, or suite_spots maps this line to
# another line that is exlcuded, then we're excluded.
elif self.excluded.has_key(lineno) or \
self.suite_spots.has_key(lineno) and \
self.excluded.has_key(self.suite_spots[lineno][1]):
return 0
# Otherwise, this is an executable line.
else:
self.statements[lineno] = 1
return 1
return 0
default = recordNodeLine
def recordAndDispatch(self, node):
self.recordNodeLine(node)
self.dispatch(node)
def doSuite(self, intro, body, exclude=0):
exsuite = self.excluding_suite
if exclude or (intro and not self.recordNodeLine(intro)):
self.excluding_suite = 1
self.recordAndDispatch(body)
self.excluding_suite = exsuite
def doPlainWordSuite(self, prevsuite, suite):
# Finding the exclude lines for else's is tricky, because they aren't
# present in the compiler parse tree. Look at the previous suite,
# and find its last line. If any line between there and the else's
# first line are excluded, then we exclude the else.
lastprev = self.getLastLine(prevsuite)
firstelse = self.getFirstLine(suite)
for l in range(lastprev+1, firstelse):
if self.suite_spots.has_key(l):
self.doSuite(None, suite, exclude=self.excluded.has_key(l))
break
else:
self.doSuite(None, suite)
def doElse(self, prevsuite, node):
if node.else_:
self.doPlainWordSuite(prevsuite, node.else_)
def visitFor(self, node):
self.doSuite(node, node.body)
self.doElse(node.body, node)
def visitIf(self, node):
# The first test has to be handled separately from the rest.
# The first test is credited to the line with the "if", but the others
# are credited to the line with the test for the elif.
self.doSuite(node, node.tests[0][1])
for t, n in node.tests[1:]:
self.doSuite(t, n)
self.doElse(node.tests[-1][1], node)
def visitWhile(self, node):
self.doSuite(node, node.body)
self.doElse(node.body, node)
def visitTryExcept(self, node):
self.doSuite(node, node.body)
for i in range(len(node.handlers)):
a, b, h = node.handlers[i]
if not a:
# It's a plain "except:". Find the previous suite.
if i > 0:
prev = node.handlers[i-1][2]
else:
prev = node.body
self.doPlainWordSuite(prev, h)
else:
self.doSuite(a, h)
self.doElse(node.handlers[-1][2], node)
def visitTryFinally(self, node):
self.doSuite(node, node.body)
self.doPlainWordSuite(node.body, node.final)
def visitGlobal(self, node):
# "global" statements don't execute like others (they don't call the
# trace function), so don't record their line numbers.
pass
the_coverage = None
class coverage:
error = "coverage error"
# Name of the cache file (unless environment variable is set).
cache_default = ".coverage"
# Environment variable naming the cache file.
cache_env = "COVERAGE_FILE"
# A dictionary with an entry for (Python source file name, line number
# in that file) if that line has been executed.
c = {}
# A map from canonical Python source file name to a dictionary in
# which there's an entry for each line number that has been
# executed.
cexecuted = {}
# Cache of results of calling the analysis2() method, so that you can
# specify both -r and -a without doing double work.
analysis_cache = {}
# Cache of results of calling the canonical_filename() method, to
# avoid duplicating work.
canonical_filename_cache = {}
def __init__(self):
global the_coverage
if the_coverage:
raise self.error, "Only one coverage object allowed."
self.usecache = 1
self.cache = None
self.exclude_re = ''
self.nesting = 0
self.cstack = []
self.xstack = []
self.relative_dir = os.path.normcase(os.path.abspath(os.curdir)+os.path.sep)
# t(f, x, y). This method is passed to sys.settrace as a trace function.
# See [van Rossum 2001-07-20b, 9.2] for an explanation of sys.settrace and
# the arguments and return value of the trace function.
# See [van Rossum 2001-07-20a, 3.2] for a description of frame and code
# objects.
def t(self, f, w, a): #pragma: no cover
#print w, f.f_code.co_filename, f.f_lineno
if w == 'line':
self.c[(f.f_code.co_filename, f.f_lineno)] = 1
for c in self.cstack:
c[(f.f_code.co_filename, f.f_lineno)] = 1
return self.t
def help(self, error=None):
if error:
print error
print
print __doc__
sys.exit(1)
def command_line(self):
import getopt
settings = {}
optmap = {
'-a': 'annotate',
'-d:': 'directory=',
'-e': 'erase',
'-h': 'help',
'-i': 'ignore-errors',
'-m': 'show-missing',
'-r': 'report',
'-x': 'execute',
'-o': 'omit=',
}
short_opts = string.join(map(lambda o: o[1:], optmap.keys()), '')
long_opts = optmap.values()
options, args = getopt.getopt(sys.argv[1:], short_opts, long_opts)
for o, a in options:
if optmap.has_key(o):
settings[optmap[o]] = 1
elif optmap.has_key(o + ':'):
settings[optmap[o + ':']] = a
elif o[2:] in long_opts:
settings[o[2:]] = 1
elif o[2:] + '=' in long_opts:
settings[o[2:]] = a
else:
self.help("Unknown option: '%s'." % o)
if settings.get('help'):
self.help()
for i in ['erase', 'execute']:
for j in ['annotate', 'report']:
if settings.get(i) and settings.get(j):
self.help("You can't specify the '%s' and '%s' "
"options at the same time." % (i, j))
args_needed = (settings.get('execute')
or settings.get('annotate')
or settings.get('report'))
action = settings.get('erase') or args_needed
if not action:
self.help("You must specify at least one of -e, -x, -r, or -a.")
if not args_needed and args:
self.help("Unexpected arguments %s." % args)
self.get_ready()
self.exclude('#pragma[: ]+[nN][oO] [cC][oO][vV][eE][rR]')
if settings.get('erase'):
self.erase()
if settings.get('execute'):
if not args:
self.help("Nothing to do.")
sys.argv = args
self.start()
import __main__
sys.path[0] = os.path.dirname(sys.argv[0])
execfile(sys.argv[0], __main__.__dict__)
if not args:
args = self.cexecuted.keys()
ignore_errors = settings.get('ignore-errors')
show_missing = settings.get('show-missing')
directory = settings.get('directory')
omit = filter(None, settings.get('omit', '').split(','))
omit += ['/<'] # Always skip /<string> etc.
if settings.get('report'):
self.report(args, show_missing, ignore_errors, omit_prefixes=omit)
if settings.get('annotate'):
self.annotate(args, directory, ignore_errors, omit_prefixes=omit)
def use_cache(self, usecache):
self.usecache = usecache
def get_ready(self):
if self.usecache and not self.cache:
self.cache = os.path.abspath(os.environ.get(self.cache_env,
self.cache_default))
self.restore()
self.analysis_cache = {}
def start(self):
self.get_ready()
if self.nesting == 0: #pragma: no cover
sys.settrace(self.t)
if hasattr(threading, 'settrace'):
threading.settrace(self.t)
self.nesting += 1
def stop(self):
self.nesting -= 1
if self.nesting == 0: #pragma: no cover
sys.settrace(None)
if hasattr(threading, 'settrace'):
threading.settrace(None)
def erase(self):
self.c = {}
self.analysis_cache = {}
self.cexecuted = {}
if self.cache and os.path.exists(self.cache):
os.remove(self.cache)
self.exclude_re = ""
def exclude(self, re):
if self.exclude_re:
self.exclude_re += "|"
self.exclude_re += "(" + re + ")"
def begin_recursive(self):
self.cstack.append(self.c)
self.xstack.append(self.exclude_re)
def end_recursive(self):
self.c = self.cstack.pop()
self.exclude_re = self.xstack.pop()
# save(). Save coverage data to the coverage cache.
def save(self):
# move to directory that must exist.
os.chdir(os.sep)
if self.usecache and self.cache:
self.canonicalize_filenames()
cache = open(self.cache, 'wb')
import marshal
marshal.dump(self.cexecuted, cache)
cache.close()
# restore(). Restore coverage data from the coverage cache (if it exists).
def restore(self):
self.c = {}
self.cexecuted = {}
assert self.usecache
if not os.path.exists(self.cache):
return
try:
cache = open(self.cache, 'rb')
import marshal
cexecuted = marshal.load(cache)
cache.close()
if isinstance(cexecuted, types.DictType):
self.cexecuted = cexecuted
except:
pass
# canonical_filename(filename). Return a canonical filename for the
# file (that is, an absolute path with no redundant components and
# normalized case). See [GDR 2001-12-04b, 3.3].
def canonical_filename(self, filename):
if not self.canonical_filename_cache.has_key(filename):
f = filename
if os.path.isabs(f) and not os.path.exists(f):
f = os.path.basename(f)
if not os.path.isabs(f):
for path in [os.curdir] + sys.path:
g = os.path.join(path, f)
if os.path.exists(g):
f = g
break
cf = os.path.normcase(os.path.abspath(f))
self.canonical_filename_cache[filename] = cf
return self.canonical_filename_cache[filename]
# canonicalize_filenames(). Copy results from "c" to "cexecuted",
# canonicalizing filenames on the way. Clear the "c" map.
def canonicalize_filenames(self):
for filename, lineno in self.c.keys():
f = self.canonical_filename(filename)
if not self.cexecuted.has_key(f):
self.cexecuted[f] = {}
self.cexecuted[f][lineno] = 1
self.c = {}
# morf_filename(morf). Return the filename for a module or file.
def morf_filename(self, morf):
if isinstance(morf, types.ModuleType):
if not hasattr(morf, '__file__'):
raise self.error, "Module has no __file__ attribute."
file = morf.__file__
else:
file = morf
return self.canonical_filename(file)
# analyze_morf(morf). Analyze the module or filename passed as
# the argument. If the source code can't be found, raise an error.
# Otherwise, return a tuple of (1) the canonical filename of the
# source code for the module, (2) a list of lines of statements
# in the source code, and (3) a list of lines of excluded statements.
def analyze_morf(self, morf):
if self.analysis_cache.has_key(morf):
return self.analysis_cache[morf]
filename = self.morf_filename(morf)
ext = os.path.splitext(filename)[1]
if ext == '.pyc':
if not os.path.exists(filename[0:-1]):
raise self.error, ("No source for compiled code '%s'."
% filename)
filename = filename[0:-1]
elif ext != '.py':
raise self.error, "File '%s' not Python source." % filename
source = open(filename, 'r')
lines, excluded_lines = self.find_executable_statements(
source.read(), exclude=self.exclude_re
)
source.close()
result = filename, lines, excluded_lines
self.analysis_cache[morf] = result
return result
def get_suite_spots(self, tree, spots):
import symbol, token
for i in range(1, len(tree)):
if type(tree[i]) == type(()):
if tree[i][0] == symbol.suite:
# Found a suite, look back for the colon and keyword.
lineno_colon = lineno_word = None
for j in range(i-1, 0, -1):
if tree[j][0] == token.COLON:
lineno_colon = tree[j][2]
elif tree[j][0] == token.NAME:
if tree[j][1] == 'elif':
# Find the line number of the first non-terminal
# after the keyword.
t = tree[j+1]
while t and token.ISNONTERMINAL(t[0]):
t = t[1]
if t:
lineno_word = t[2]
else:
lineno_word = tree[j][2]
break
elif tree[j][0] == symbol.except_clause:
# "except" clauses look like:
# ('except_clause', ('NAME', 'except', lineno), ...)
if tree[j][1][0] == token.NAME:
lineno_word = tree[j][1][2]
break
if lineno_colon and lineno_word:
# Found colon and keyword, mark all the lines
# between the two with the two line numbers.
for l in range(lineno_word, lineno_colon+1):
spots[l] = (lineno_word, lineno_colon)
self.get_suite_spots(tree[i], spots)
def find_executable_statements(self, text, exclude=None):
# Find lines which match an exclusion pattern.
excluded = {}
suite_spots = {}
if exclude:
reExclude = re.compile(exclude)
lines = text.split('\n')
for i in range(len(lines)):
if reExclude.search(lines[i]):
excluded[i+1] = 1
import parser
tree = parser.suite(text+'\n\n').totuple(1)
self.get_suite_spots(tree, suite_spots)
# Use the compiler module to parse the text and find the executable
# statements. We add newlines to be impervious to final partial lines.
statements = {}
ast = compiler.parse(text+'\n\n')
visitor = StatementFindingAstVisitor(statements, excluded, suite_spots)
compiler.walk(ast, visitor, walker=visitor)
lines = statements.keys()
lines.sort()
excluded_lines = excluded.keys()
excluded_lines.sort()
return lines, excluded_lines
# format_lines(statements, lines). Format a list of line numbers
# for printing by coalescing groups of lines as long as the lines
# represent consecutive statements. This will coalesce even if
# there are gaps between statements, so if statements =
# [1,2,3,4,5,10,11,12,13,14] and lines = [1,2,5,10,11,13,14] then
# format_lines will return "1-2, 5-11, 13-14".
def format_lines(self, statements, lines):
pairs = []
i = 0
j = 0
start = None
pairs = []
while i < len(statements) and j < len(lines):
if statements[i] == lines[j]:
if start == None:
start = lines[j]
end = lines[j]
j = j + 1
elif start:
pairs.append((start, end))
start = None
i = i + 1
if start:
pairs.append((start, end))
def stringify(pair):
start, end = pair
if start == end:
return "%d" % start
else:
return "%d-%d" % (start, end)
return string.join(map(stringify, pairs), ", ")
# Backward compatibility with version 1.
def analysis(self, morf):
f, s, _, m, mf = self.analysis2(morf)
return f, s, m, mf
def analysis2(self, morf):
filename, statements, excluded = self.analyze_morf(morf)
self.canonicalize_filenames()
if not self.cexecuted.has_key(filename):
self.cexecuted[filename] = {}
missing = []
for line in statements:
if not self.cexecuted[filename].has_key(line):
missing.append(line)
return (filename, statements, excluded, missing,
self.format_lines(statements, missing))
def relative_filename(self, filename):
""" Convert filename to relative filename from self.relative_dir.
"""
return filename.replace(self.relative_dir, "")
def morf_name(self, morf):
""" Return the name of morf as used in report.
"""
if isinstance(morf, types.ModuleType):
return morf.__name__
else:
return self.relative_filename(os.path.splitext(morf)[0])
def filter_by_prefix(self, morfs, omit_prefixes):
""" Return list of morfs where the morf name does not begin
with any one of the omit_prefixes.
"""
filtered_morfs = []
for morf in morfs:
for prefix in omit_prefixes:
if self.morf_name(morf).startswith(prefix):
break
else:
filtered_morfs.append(morf)
return filtered_morfs
def morf_name_compare(self, x, y):
return cmp(self.morf_name(x), self.morf_name(y))
def report(self, morfs, show_missing=1, ignore_errors=0, file=None, omit_prefixes=[]):
if not isinstance(morfs, types.ListType):
morfs = [morfs]
morfs = self.filter_by_prefix(morfs, omit_prefixes)
morfs.sort(self.morf_name_compare)
max_name = max([5,] + map(len, map(self.morf_name, morfs)))
fmt_name = "%%- %ds " % max_name
fmt_err = fmt_name + "%s: %s"
header = fmt_name % "Name" + " Stmts Exec Cover"
fmt_coverage = fmt_name + "% 6d % 6d % 5d%%"
if show_missing:
header = header + " Missing"
fmt_coverage = fmt_coverage + " %s"
if not file:
file = sys.stdout
print >>file, header
print >>file, "-" * len(header)
total_statements = 0
total_executed = 0
for morf in morfs:
name = self.morf_name(morf)
try:
_, statements, _, missing, readable = self.analysis2(morf)
n = len(statements)
m = n - len(missing)
if n > 0:
pc = 100.0 * m / n
else:
pc = 100.0
args = (name, n, m, pc)
if show_missing:
args = args + (readable,)
print >>file, fmt_coverage % args
total_statements = total_statements + n
total_executed = total_executed + m
except KeyboardInterrupt: #pragma: no cover
raise
except:
if not ignore_errors:
type, msg = sys.exc_info()[0:2]
print >>file, fmt_err % (name, type, msg)
if len(morfs) > 1:
print >>file, "-" * len(header)
if total_statements > 0:
pc = 100.0 * total_executed / total_statements
else:
pc = 100.0
args = ("TOTAL", total_statements, total_executed, pc)
if show_missing:
args = args + ("",)
print >>file, fmt_coverage % args
# annotate(morfs, ignore_errors).
blank_re = re.compile(r"\s*(#|$)")
else_re = re.compile(r"\s*else\s*:\s*(#|$)")
def annotate(self, morfs, directory=None, ignore_errors=0, omit_prefixes=[]):
morfs = self.filter_by_prefix(morfs, omit_prefixes)
for morf in morfs:
try:
filename, statements, excluded, missing, _ = self.analysis2(morf)
self.annotate_file(filename, statements, excluded, missing, directory)
except KeyboardInterrupt:
raise
except:
if not ignore_errors:
raise
def annotate_file(self, filename, statements, excluded, missing, directory=None):
source = open(filename, 'r')
if directory:
dest_file = os.path.join(directory,
os.path.basename(filename)
+ ',cover')
else:
dest_file = filename + ',cover'
dest = open(dest_file, 'w')
lineno = 0
i = 0
j = 0
covered = 1
while 1:
line = source.readline()
if line == '':
break
lineno = lineno + 1
while i < len(statements) and statements[i] < lineno:
i = i + 1
while j < len(missing) and missing[j] < lineno:
j = j + 1
if i < len(statements) and statements[i] == lineno:
covered = j >= len(missing) or missing[j] > lineno
if self.blank_re.match(line):
dest.write(' ')
elif self.else_re.match(line):
# Special logic for lines containing only 'else:'.
# See [GDR 2001-12-04b, 3.2].
if i >= len(statements) and j >= len(missing):
dest.write('! ')
elif i >= len(statements) or j >= len(missing):
dest.write('> ')
elif statements[i] == missing[j]:
dest.write('! ')
else:
dest.write('> ')
elif lineno in excluded:
dest.write('- ')
elif covered:
dest.write('> ')
else:
dest.write('! ')
dest.write(line)
source.close()
dest.close()
# Singleton object.
the_coverage = coverage()
# Module functions call methods in the singleton object.
def use_cache(*args, **kw): return the_coverage.use_cache(*args, **kw)
def start(*args, **kw): return the_coverage.start(*args, **kw)
def stop(*args, **kw): return the_coverage.stop(*args, **kw)
def erase(*args, **kw): return the_coverage.erase(*args, **kw)
def begin_recursive(*args, **kw): return the_coverage.begin_recursive(*args, **kw)
def end_recursive(*args, **kw): return the_coverage.end_recursive(*args, **kw)
def exclude(*args, **kw): return the_coverage.exclude(*args, **kw)
def analysis(*args, **kw): return the_coverage.analysis(*args, **kw)
def analysis2(*args, **kw): return the_coverage.analysis2(*args, **kw)
def report(*args, **kw): return the_coverage.report(*args, **kw)
def annotate(*args, **kw): return the_coverage.annotate(*args, **kw)
def annotate_file(*args, **kw): return the_coverage.annotate_file(*args, **kw)
# Save coverage data when Python exits. (The atexit module wasn't
# introduced until Python 2.0, so use sys.exitfunc when it's not
# available.)
try:
import atexit
atexit.register(the_coverage.save)
except ImportError:
sys.exitfunc = the_coverage.save
# Command-line interface.
if __name__ == '__main__':
the_coverage.command_line()
# A. REFERENCES
#
# [GDR 2001-12-04a] "Statement coverage for Python"; Gareth Rees;
# Ravenbrook Limited; 2001-12-04;
# <http://www.nedbatchelder.com/code/modules/rees-coverage.html>.
#
# [GDR 2001-12-04b] "Statement coverage for Python: design and
# analysis"; Gareth Rees; Ravenbrook Limited; 2001-12-04;
# <http://www.nedbatchelder.com/code/modules/rees-design.html>.
#
# [van Rossum 2001-07-20a] "Python Reference Manual (releae 2.1.1)";
# Guide van Rossum; 2001-07-20;
# <http://www.python.org/doc/2.1.1/ref/ref.html>.
#
# [van Rossum 2001-07-20b] "Python Library Reference"; Guido van Rossum;
# 2001-07-20; <http://www.python.org/doc/2.1.1/lib/lib.html>.
#
#
# B. DOCUMENT HISTORY
#
# 2001-12-04 GDR Created.
#
# 2001-12-06 GDR Added command-line interface and source code
# annotation.
#
# 2001-12-09 GDR Moved design and interface to separate documents.
#
# 2001-12-10 GDR Open cache file as binary on Windows. Allow
# simultaneous -e and -x, or -a and -r.
#
# 2001-12-12 GDR Added command-line help. Cache analysis so that it
# only needs to be done once when you specify -a and -r.
#
# 2001-12-13 GDR Improved speed while recording. Portable between
# Python 1.5.2 and 2.1.1.
#
# 2002-01-03 GDR Module-level functions work correctly.
#
# 2002-01-07 GDR Update sys.path when running a file with the -x option,
# so that it matches the value the program would get if it were run on
# its own.
#
# 2004-12-12 NMB Significant code changes.
# - Finding executable statements has been rewritten so that docstrings and
# other quirks of Python execution aren't mistakenly identified as missing
# lines.
# - Lines can be excluded from consideration, even entire suites of lines.
# - The filesystem cache of covered lines can be disabled programmatically.
# - Modernized the code.
#
# 2004-12-14 NMB Minor tweaks. Return 'analysis' to its original behavior
# and add 'analysis2'. Add a global for 'annotate', and factor it, adding
# 'annotate_file'.
#
# 2004-12-31 NMB Allow for keyword arguments in the module global functions.
# Thanks, Allen.
#
# 2005-12-02 NMB Call threading.settrace so that all threads are measured.
# Thanks Martin Fuzzey. Add a file argument to report so that reports can be
# captured to a different destination.
#
# 2005-12-03 NMB coverage.py can now measure itself.
#
# 2005-12-04 NMB Adapted Greg Rogers' patch for using relative filenames,
# and sorting and omitting files to report on.
#
# C. COPYRIGHT AND LICENCE
#
# Copyright 2001 Gareth Rees. All rights reserved.
# Copyright 2004-2005 Ned Batchelder. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
#
# $Id: coverage.py 26 2005-12-04 18:42:44Z ned $