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authorJeremy Hylton <jeremy@alum.mit.edu>2003-07-07 16:09:24 (GMT)
committerJeremy Hylton <jeremy@alum.mit.edu>2003-07-07 16:09:24 (GMT)
commit5ec79681d2848c8914a6a67b47ab020538f6cecb (patch)
treeec133a8191d6c45c04fba8ff4cc91776997d698e /Tools/scripts
parentd7ce86dcab78d3fef32bb8fff23e84cf9df628db (diff)
downloadcpython-5ec79681d2848c8914a6a67b47ab020538f6cecb.zip
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This file was moved to Lib/.
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-rw-r--r--Tools/scripts/trace.py729
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diff --git a/Tools/scripts/trace.py b/Tools/scripts/trace.py
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-#!/usr/bin/env python
-
-# portions copyright 2001, Autonomous Zones Industries, Inc., all rights...
-# err... reserved and offered to the public under the terms of the
-# Python 2.2 license.
-# Author: Zooko O'Whielacronx
-# http://zooko.com/
-# mailto:zooko@zooko.com
-#
-# Copyright 2000, Mojam Media, Inc., all rights reserved.
-# Author: Skip Montanaro
-#
-# Copyright 1999, Bioreason, Inc., all rights reserved.
-# Author: Andrew Dalke
-#
-# Copyright 1995-1997, Automatrix, Inc., all rights reserved.
-# Author: Skip Montanaro
-#
-# Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved.
-#
-#
-# Permission to use, copy, modify, and distribute this Python software and
-# its associated documentation for any purpose without fee is hereby
-# granted, provided that the above copyright notice appears in all copies,
-# and that both that copyright notice and this permission notice appear in
-# supporting documentation, and that the name of neither Automatrix,
-# Bioreason or Mojam Media be used in advertising or publicity pertaining to
-# distribution of the software without specific, written prior permission.
-#
-"""program/module to trace Python program or function execution
-
-Sample use, command line:
- trace.py -c -f counts --ignore-dir '$prefix' spam.py eggs
- trace.py -t --ignore-dir '$prefix' spam.py eggs
-
-Sample use, programmatically
- # create a Trace object, telling it what to ignore, and whether to
- # do tracing or line-counting or both.
- trace = trace.Trace(ignoredirs=[sys.prefix, sys.exec_prefix,], trace=0,
- count=1)
- # run the new command using the given trace
- trace.run(coverage.globaltrace, 'main()')
- # make a report, telling it where you want output
- r = trace.results()
- r.write_results(show_missing=1)
-"""
-
-import sys, os, tempfile, types, copy, operator, inspect, exceptions, marshal
-try:
- import cPickle
- pickle = cPickle
-except ImportError:
- import pickle
-
-# DEBUG_MODE=1 # make this true to get printouts which help you understand what's going on
-
-def usage(outfile):
- outfile.write("""Usage: %s [OPTIONS] <file> [ARGS]
-
-Meta-options:
---help Display this help then exit.
---version Output version information then exit.
-
-Otherwise, exactly one of the following three options must be given:
--t, --trace Print each line to sys.stdout before it is executed.
--c, --count Count the number of times each line is executed
- and write the counts to <module>.cover for each
- module executed, in the module's directory.
- See also `--coverdir', `--file', `--no-report' below.
--r, --report Generate a report from a counts file; do not execute
- any code. `--file' must specify the results file to
- read, which must have been created in a previous run
- with `--count --file=FILE'.
-
-Modifiers:
--f, --file=<file> File to accumulate counts over several runs.
--R, --no-report Do not generate the coverage report files.
- Useful if you want to accumulate over several runs.
--C, --coverdir=<dir> Directory where the report files. The coverage
- report for <package>.<module> is written to file
- <dir>/<package>/<module>.cover.
--m, --missing Annotate executable lines that were not executed
- with '>>>>>> '.
--s, --summary Write a brief summary on stdout for each file.
- (Can only be used with --count or --report.)
-
-Filters, may be repeated multiple times:
---ignore-module=<mod> Ignore the given module and its submodules
- (if it is a package).
---ignore-dir=<dir> Ignore files in the given directory (multiple
- directories can be joined by os.pathsep).
-""" % sys.argv[0])
-
-class Ignore:
- def __init__(self, modules = None, dirs = None):
- self._mods = modules or []
- self._dirs = dirs or []
-
- self._dirs = map(os.path.normpath, self._dirs)
- self._ignore = { '<string>': 1 }
-
- def names(self, filename, modulename):
- if self._ignore.has_key(modulename):
- return self._ignore[modulename]
-
- # haven't seen this one before, so see if the module name is
- # on the ignore list. Need to take some care since ignoring
- # "cmp" musn't mean ignoring "cmpcache" but ignoring
- # "Spam" must also mean ignoring "Spam.Eggs".
- for mod in self._mods:
- if mod == modulename: # Identical names, so ignore
- self._ignore[modulename] = 1
- return 1
- # check if the module is a proper submodule of something on
- # the ignore list
- n = len(mod)
- # (will not overflow since if the first n characters are the
- # same and the name has not already occured, then the size
- # of "name" is greater than that of "mod")
- if mod == modulename[:n] and modulename[n] == '.':
- self._ignore[modulename] = 1
- return 1
-
- # Now check that __file__ isn't in one of the directories
- if filename is None:
- # must be a built-in, so we must ignore
- self._ignore[modulename] = 1
- return 1
-
- # Ignore a file when it contains one of the ignorable paths
- for d in self._dirs:
- # The '+ os.sep' is to ensure that d is a parent directory,
- # as compared to cases like:
- # d = "/usr/local"
- # filename = "/usr/local.py"
- # or
- # d = "/usr/local.py"
- # filename = "/usr/local.py"
- if filename.startswith(d + os.sep):
- self._ignore[modulename] = 1
- return 1
-
- # Tried the different ways, so we don't ignore this module
- self._ignore[modulename] = 0
- return 0
-
-class CoverageResults:
- def __init__(self, counts=None, calledfuncs=None, infile=None,
- outfile=None):
- self.counts = counts
- if self.counts is None:
- self.counts = {}
- self.counter = self.counts.copy() # map (filename, lineno) to count
- self.calledfuncs = calledfuncs
- if self.calledfuncs is None:
- self.calledfuncs = {}
- self.calledfuncs = self.calledfuncs.copy()
- self.infile = infile
- self.outfile = outfile
- if self.infile:
- # try and merge existing counts file
- try:
- thingie = pickle.load(open(self.infile, 'r'))
- if type(thingie) is types.DictType:
- # backwards compatibility for old trace.py after
- # Zooko touched it but before calledfuncs --Zooko
- # 2001-10-24
- self.update(self.__class__(thingie))
- elif type(thingie) is types.TupleType and len(thingie) == 2:
- counts, calledfuncs = thingie
- self.update(self.__class__(counts, calledfuncs))
- except (IOError, EOFError):
- pass
- except pickle.UnpicklingError:
- # backwards compatibility for old trace.py before
- # Zooko touched it --Zooko 2001-10-24
- self.update(self.__class__(marshal.load(open(self.infile))))
-
- def update(self, other):
- """Merge in the data from another CoverageResults"""
- counts = self.counts
- calledfuncs = self.calledfuncs
- other_counts = other.counts
- other_calledfuncs = other.calledfuncs
-
- for key in other_counts.keys():
- if key != 'calledfuncs':
- # backwards compatibility for abortive attempt to
- # stuff calledfuncs into self.counts, by Zooko
- # --Zooko 2001-10-24
- counts[key] = counts.get(key, 0) + other_counts[key]
-
- for key in other_calledfuncs.keys():
- calledfuncs[key] = 1
-
- def write_results(self, show_missing = 1, summary = 0, coverdir = None):
- """
- @param coverdir
- """
- for filename, modulename, funcname in self.calledfuncs.keys():
- print ("filename: %s, modulename: %s, funcname: %s"
- % (filename, modulename, funcname))
-
- import re
- # turn the counts data ("(filename, lineno) = count") into something
- # accessible on a per-file basis
- per_file = {}
- for thingie in self.counts.keys():
- if thingie != "calledfuncs":
- # backwards compatibility for abortive attempt to
- # stuff calledfuncs into self.counts, by Zooko --Zooko
- # 2001-10-24
- filename, lineno = thingie
- lines_hit = per_file[filename] = per_file.get(filename, {})
- lines_hit[lineno] = self.counts[(filename, lineno)]
-
- # there are many places where this is insufficient, like a blank
- # line embedded in a multiline string.
- blank = re.compile(r'^\s*(#.*)?$')
-
- # accumulate summary info, if needed
- sums = {}
-
- # generate file paths for the coverage files we are going to write...
- fnlist = []
- tfdir = tempfile.gettempdir()
- for key in per_file.keys():
- filename = key
-
- # skip some "files" we don't care about...
- if filename == "<string>":
- continue
- # are these caused by code compiled using exec or something?
- if filename.startswith(tfdir):
- continue
-
- modulename = inspect.getmodulename(filename)
-
- if filename.endswith(".pyc") or filename.endswith(".pyo"):
- filename = filename[:-1]
-
- if coverdir:
- thiscoverdir = coverdir
- else:
- thiscoverdir = os.path.dirname(os.path.abspath(filename))
-
- # the code from here to "<<<" is the contents of the `fileutil.make_dirs()' function in the Mojo Nation project. --Zooko 2001-10-14
- # http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/mojonation/evil/common/fileutil.py?rev=HEAD&content-type=text/vnd.viewcvs-markup
- tx = None
- try:
- os.makedirs(thiscoverdir)
- except OSError, x:
- tx = x
-
- if not os.path.isdir(thiscoverdir):
- if tx:
- raise tx
- raise exceptions.IOError, "unknown error prevented creation of directory: %s" % thiscoverdir # careful not to construct an IOError with a 2-tuple, as that has a special meaning...
- # <<<
-
- # build list file name by appending a ".cover" to the module name
- # and sticking it into the specified directory
- if "." in modulename:
- # A module in a package
- finalname = modulename.split(".")[-1]
- listfilename = os.path.join(thiscoverdir, finalname + ".cover")
- else:
- listfilename = os.path.join(thiscoverdir, modulename + ".cover")
-
- # Get the original lines from the .py file
- try:
- lines = open(filename, 'r').readlines()
- except IOError, err:
- sys.stderr.write("trace: Could not open %s for reading because: %s - skipping\n" % (`filename`, err))
- continue
-
- try:
- outfile = open(listfilename, 'w')
- except IOError, err:
- sys.stderr.write(
- '%s: Could not open %s for writing because: %s" \
- "- skipping\n' % ("trace", `listfilename`, err))
- continue
-
- # If desired, get a list of the line numbers which represent
- # executable content (returned as a dict for better lookup speed)
- if show_missing:
- executable_linenos = find_executable_linenos(filename)
- else:
- executable_linenos = {}
-
- n_lines = 0
- n_hits = 0
- lines_hit = per_file[key]
- for i in range(len(lines)):
- line = lines[i]
-
- # do the blank/comment match to try to mark more lines
- # (help the reader find stuff that hasn't been covered)
- if lines_hit.has_key(i+1):
- # count precedes the lines that we captured
- outfile.write('%5d: ' % lines_hit[i+1])
- n_hits = n_hits + 1
- n_lines = n_lines + 1
- elif blank.match(line):
- # blank lines and comments are preceded by dots
- outfile.write(' . ')
- else:
- # lines preceded by no marks weren't hit
- # Highlight them if so indicated, unless the line contains
- # '#pragma: NO COVER' (it is possible to embed this into
- # the text as a non-comment; no easy fix)
- if executable_linenos.has_key(i+1) and \
- lines[i].find(' '.join(['#pragma', 'NO COVER'])) == -1:
- outfile.write('>>>>>> ')
- else:
- outfile.write(' '*7)
- n_lines = n_lines + 1
- outfile.write(lines[i].expandtabs(8))
-
- outfile.close()
-
- if summary and n_lines:
- percent = int(100 * n_hits / n_lines)
- sums[modulename] = n_lines, percent, modulename, filename
-
- if summary and sums:
- mods = sums.keys()
- mods.sort()
- print "lines cov% module (path)"
- for m in mods:
- n_lines, percent, modulename, filename = sums[m]
- print "%5d %3d%% %s (%s)" % sums[m]
-
- if self.outfile:
- # try and store counts and module info into self.outfile
- try:
- pickle.dump((self.counts, self.calledfuncs),
- open(self.outfile, 'w'), 1)
- except IOError, err:
- sys.stderr.write("cannot save counts files because %s" % err)
-
-def _find_LINENO_from_code(code):
- """return the numbers of the lines containing the source code that
- was compiled into code"""
- linenos = {}
-
- line_increments = [ord(c) for c in code.co_lnotab[1::2]]
- table_length = len(line_increments)
-
- lineno = code.co_firstlineno
-
- for li in line_increments:
- linenos[lineno] = 1
- lineno += li
- linenos[lineno] = 1
-
- return linenos
-
-def _find_LINENO(code):
- """return all of the lineno information from a code object"""
- import types
-
- # get all of the lineno information from the code of this scope level
- linenos = _find_LINENO_from_code(code)
-
- # and check the constants for references to other code objects
- for c in code.co_consts:
- if type(c) == types.CodeType:
- # find another code object, so recurse into it
- linenos.update(_find_LINENO(c))
- return linenos
-
-def find_executable_linenos(filename):
- """return a dict of the line numbers from executable statements in a file
-
- """
- import parser
-
- assert filename.endswith('.py')
-
- prog = open(filename).read()
- ast = parser.suite(prog)
- code = parser.compileast(ast, filename)
-
- return _find_LINENO(code)
-
-### XXX because os.path.commonprefix seems broken by my way of thinking...
-def commonprefix(dirs):
- "Given a list of pathnames, returns the longest common leading component"
- if not dirs: return ''
- n = copy.copy(dirs)
- for i in range(len(n)):
- n[i] = n[i].split(os.sep)
- prefix = n[0]
- for item in n:
- for i in range(len(prefix)):
- if prefix[:i+1] <> item[:i+1]:
- prefix = prefix[:i]
- if i == 0: return ''
- break
- return os.sep.join(prefix)
-
-class Trace:
- def __init__(self, count=1, trace=1, countfuncs=0, ignoremods=(),
- ignoredirs=(), infile=None, outfile=None):
- """
- @param count true iff it should count number of times each
- line is executed
- @param trace true iff it should print out each line that is
- being counted
- @param countfuncs true iff it should just output a list of
- (filename, modulename, funcname,) for functions
- that were called at least once; This overrides
- `count' and `trace'
- @param ignoremods a list of the names of modules to ignore
- @param ignoredirs a list of the names of directories to ignore
- all of the (recursive) contents of
- @param infile file from which to read stored counts to be
- added into the results
- @param outfile file in which to write the results
- """
- self.infile = infile
- self.outfile = outfile
- self.ignore = Ignore(ignoremods, ignoredirs)
- self.counts = {} # keys are (filename, linenumber)
- self.blabbed = {} # for debugging
- self.pathtobasename = {} # for memoizing os.path.basename
- self.donothing = 0
- self.trace = trace
- self._calledfuncs = {}
- if countfuncs:
- self.globaltrace = self.globaltrace_countfuncs
- elif trace and count:
- self.globaltrace = self.globaltrace_lt
- self.localtrace = self.localtrace_trace_and_count
- elif trace:
- self.globaltrace = self.globaltrace_lt
- self.localtrace = self.localtrace_trace
- elif count:
- self.globaltrace = self.globaltrace_lt
- self.localtrace = self.localtrace_count
- else:
- # Ahem -- do nothing? Okay.
- self.donothing = 1
-
- def run(self, cmd):
- import __main__
- dict = __main__.__dict__
- if not self.donothing:
- sys.settrace(self.globaltrace)
- try:
- exec cmd in dict, dict
- finally:
- if not self.donothing:
- sys.settrace(None)
-
- def runctx(self, cmd, globals=None, locals=None):
- if globals is None: globals = {}
- if locals is None: locals = {}
- if not self.donothing:
- sys.settrace(self.globaltrace)
- try:
- exec cmd in globals, locals
- finally:
- if not self.donothing:
- sys.settrace(None)
-
- def runfunc(self, func, *args, **kw):
- result = None
- if not self.donothing:
- sys.settrace(self.globaltrace)
- try:
- result = apply(func, args, kw)
- finally:
- if not self.donothing:
- sys.settrace(None)
- return result
-
- def globaltrace_countfuncs(self, frame, why, arg):
- """
- Handles `call' events (why == 'call') and adds the (filename, modulename, funcname,) to the self._calledfuncs dict.
- """
- if why == 'call':
- filename, lineno, funcname, context, lineindex = \
- inspect.getframeinfo(frame, 0)
- if filename:
- modulename = inspect.getmodulename(filename)
- else:
- modulename = None
- self._calledfuncs[(filename, modulename, funcname,)] = 1
-
- def globaltrace_lt(self, frame, why, arg):
- """
- Handles `call' events (why == 'call') and if the code block being entered is to be ignored then it returns `None', else it returns `self.localtrace'.
- """
- if why == 'call':
- filename, lineno, funcname, context, lineindex = \
- inspect.getframeinfo(frame, 0)
- if filename:
- modulename = inspect.getmodulename(filename)
- if modulename is not None:
- ignore_it = self.ignore.names(filename, modulename)
- if not ignore_it:
- if self.trace:
- print (" --- modulename: %s, funcname: %s"
- % (modulename, funcname))
- return self.localtrace
- else:
- # XXX why no filename?
- return None
-
- def localtrace_trace_and_count(self, frame, why, arg):
- if why == 'line':
- # record the file name and line number of every trace
- # XXX I wish inspect offered me an optimized
- # `getfilename(frame)' to use in place of the presumably
- # heavier `getframeinfo()'. --Zooko 2001-10-14
-
- filename, lineno, funcname, context, lineindex = \
- inspect.getframeinfo(frame, 1)
- key = filename, lineno
- self.counts[key] = self.counts.get(key, 0) + 1
-
- # XXX not convinced that this memoizing is a performance
- # win -- I don't know enough about Python guts to tell.
- # --Zooko 2001-10-14
-
- bname = self.pathtobasename.get(filename)
- if bname is None:
-
- # Using setdefault faster than two separate lines?
- # --Zooko 2001-10-14
- bname = self.pathtobasename.setdefault(filename,
- os.path.basename(filename))
- try:
- print "%s(%d): %s" % (bname, lineno, context[lineindex]),
- except IndexError:
- # Uh.. sometimes getframeinfo gives me a context of
- # length 1 and a lineindex of -2. Oh well.
- pass
- return self.localtrace
-
- def localtrace_trace(self, frame, why, arg):
- if why == 'line':
- # XXX shouldn't do the count increment when arg is
- # exception? But be careful to return self.localtrace
- # when arg is exception! ? --Zooko 2001-10-14
-
- # record the file name and line number of every trace XXX
- # I wish inspect offered me an optimized
- # `getfilename(frame)' to use in place of the presumably
- # heavier `getframeinfo()'. --Zooko 2001-10-14
- filename, lineno, funcname, context, lineindex = \
- inspect.getframeinfo(frame)
-
- # XXX not convinced that this memoizing is a performance
- # win -- I don't know enough about Python guts to tell.
- # --Zooko 2001-10-14
- bname = self.pathtobasename.get(filename)
- if bname is None:
- # Using setdefault faster than two separate lines?
- # --Zooko 2001-10-14
- bname = self.pathtobasename.setdefault(filename, os.path.basename(filename))
- if context is not None:
- try:
- print "%s(%d): %s" % (bname, lineno, context[lineindex]),
- except IndexError:
- # Uh.. sometimes getframeinfo gives me a context of length 1 and a lineindex of -2. Oh well.
- pass
- else:
- print "%s(???): ???" % bname
- return self.localtrace
-
- def localtrace_count(self, frame, why, arg):
- if why == 'line':
- filename = frame.f_code.co_filename
- lineno = frame.f_lineno
- key = filename, lineno
- self.counts[key] = self.counts.get(key, 0) + 1
- return self.localtrace
-
- def results(self):
- return CoverageResults(self.counts, infile=self.infile,
- outfile=self.outfile,
- calledfuncs=self._calledfuncs)
-
-def _err_exit(msg):
- sys.stderr.write("%s: %s\n" % (sys.argv[0], msg))
- sys.exit(1)
-
-def main(argv=None):
- import getopt
-
- if argv is None:
- argv = sys.argv
- try:
- opts, prog_argv = getopt.getopt(argv[1:], "tcrRf:d:msC:l",
- ["help", "version", "trace", "count",
- "report", "no-report", "summary",
- "file=", "missing",
- "ignore-module=", "ignore-dir=",
- "coverdir=", "listfuncs",])
-
- except getopt.error, msg:
- sys.stderr.write("%s: %s\n" % (sys.argv[0], msg))
- sys.stderr.write("Try `%s --help' for more information\n"
- % sys.argv[0])
- sys.exit(1)
-
- trace = 0
- count = 0
- report = 0
- no_report = 0
- counts_file = None
- missing = 0
- ignore_modules = []
- ignore_dirs = []
- coverdir = None
- summary = 0
- listfuncs = False
-
- for opt, val in opts:
- if opt == "--help":
- usage(sys.stdout)
- sys.exit(0)
-
- if opt == "--version":
- sys.stdout.write("trace 2.0\n")
- sys.exit(0)
-
- if opt == "-l" or opt == "--listfuncs":
- listfuncs = True
- continue
-
- if opt == "-t" or opt == "--trace":
- trace = 1
- continue
-
- if opt == "-c" or opt == "--count":
- count = 1
- continue
-
- if opt == "-r" or opt == "--report":
- report = 1
- continue
-
- if opt == "-R" or opt == "--no-report":
- no_report = 1
- continue
-
- if opt == "-f" or opt == "--file":
- counts_file = val
- continue
-
- if opt == "-m" or opt == "--missing":
- missing = 1
- continue
-
- if opt == "-C" or opt == "--coverdir":
- coverdir = val
- continue
-
- if opt == "-s" or opt == "--summary":
- summary = 1
- continue
-
- if opt == "--ignore-module":
- ignore_modules.append(val)
- continue
-
- if opt == "--ignore-dir":
- for s in val.split(os.pathsep):
- s = os.path.expandvars(s)
- # should I also call expanduser? (after all, could use $HOME)
-
- s = s.replace("$prefix",
- os.path.join(sys.prefix, "lib",
- "python" + sys.version[:3]))
- s = s.replace("$exec_prefix",
- os.path.join(sys.exec_prefix, "lib",
- "python" + sys.version[:3]))
- s = os.path.normpath(s)
- ignore_dirs.append(s)
- continue
-
- assert 0, "Should never get here"
-
- if listfuncs and (count or trace):
- _err_exit("cannot specify both --listfuncs and (--trace or --count)")
-
- if not count and not trace and not report and not listfuncs:
- _err_exit("must specify one of --trace, --count, --report or --listfuncs")
-
- if report and no_report:
- _err_exit("cannot specify both --report and --no-report")
-
- if report and not counts_file:
- _err_exit("--report requires a --file")
-
- if no_report and len(prog_argv) == 0:
- _err_exit("missing name of file to run")
-
- # everything is ready
- if report:
- results = CoverageResults(infile=counts_file, outfile=counts_file)
- results.write_results(missing, summary=summary, coverdir=coverdir)
- else:
- sys.argv = prog_argv
- progname = prog_argv[0]
- sys.path[0] = os.path.split(progname)[0]
-
- t = Trace(count, trace, countfuncs=listfuncs,
- ignoremods=ignore_modules, ignoredirs=ignore_dirs,
- infile=counts_file, outfile=counts_file)
- try:
- t.run('execfile(' + `progname` + ')')
- except IOError, err:
- _err_exit("Cannot run file %s because: %s" % (`sys.argv[0]`, err))
- except SystemExit:
- pass
-
- results = t.results()
-
- if not no_report:
- results.write_results(missing, summary=summary, coverdir=coverdir)
-
-if __name__=='__main__':
- main()