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eaa6e3c712
The strerror attribute contained only partial information about the exception and produced some very confusing error messages. By passing err (the exception object itself) and letting it convert itself to a string, the error messages are better.
715 lines
25 KiB
Python
715 lines
25 KiB
Python
#!/usr/bin/env python
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# Copyright 2000, Mojam Media, Inc., all rights reserved.
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# Author: Skip Montanaro
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#
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# Copyright 1999, Bioreason, Inc., all rights reserved.
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# Author: Andrew Dalke
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#
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# Copyright 1995-1997, Automatrix, Inc., all rights reserved.
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# Author: Skip Montanaro
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#
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# Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved.
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#
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#
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# Permission to use, copy, modify, and distribute this Python software and
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# its associated documentation for any purpose without fee is hereby
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# granted, provided that the above copyright notice appears in all copies,
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# and that both that copyright notice and this permission notice appear in
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# supporting documentation, and that the name of neither Automatrix,
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# Bioreason or Mojam Media be used in advertising or publicity pertaining to
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# distribution of the software without specific, written prior permission.
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#
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#
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# Summary of recent changes:
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# Support for files with the same basename (submodules in packages)
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# Expanded the idea of how to ignore files or modules
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# Split tracing and counting into different classes
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# Extracted count information and reporting from the count class
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# Added some ability to detect which missing lines could be executed
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# Added pseudo-pragma to prohibit complaining about unexecuted lines
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# Rewrote the main program
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# Summary of older changes:
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# Added run-time display of statements being executed
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# Incorporated portability and performance fixes from Greg Stein
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# Incorporated main program from Michael Scharf
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"""
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program/module to trace Python program or function execution
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Sample use, command line:
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trace.py -c -f counts --ignore-dir '$prefix' spam.py eggs
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trace.py -t --ignore-dir '$prefix' spam.py eggs
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Sample use, programmatically (still more complicated than it should be)
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# create an Ignore option, telling it what you want to ignore
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ignore = trace.Ignore(dirs = [sys.prefix, sys.exec_prefix])
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# create a Coverage object, telling it what to ignore
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coverage = trace.Coverage(ignore)
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# run the new command using the given trace
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trace.run(coverage.trace, 'main()')
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# make a report, telling it where you want output
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t = trace.create_results_log(coverage.results(),
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'/usr/local/Automatrix/concerts/coverage')
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show_missing = 1)
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The Trace class can be instantited instead of the Coverage class if
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runtime display of executable lines is desired instead of statement
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converage measurement.
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"""
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import sys, os, string, marshal, tempfile, copy, operator
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def usage(outfile):
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outfile.write("""Usage: %s [OPTIONS] <file> [ARGS]
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Execution:
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--help Display this help then exit.
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--version Output version information then exit.
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-t,--trace Print the line to be executed to sys.stdout.
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-c,--count Count the number of times a line is executed.
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Results are written in the results file, if given.
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-r,--report Generate a report from a results file; do not
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execute any code.
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(One of `-t', `-c' or `-r' must be specified)
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-s,--summary Generate a brief summary for each file. (Can only
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be used with -c or -r.)
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I/O:
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-f,--file= File name for accumulating results over several runs.
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(No file name means do not archive results)
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-d,--logdir= Directory to use when writing annotated log files.
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Log files are the module __name__ with `.` replaced
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by os.sep and with '.pyl' added.
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-m,--missing Annotate all executable lines which were not executed
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with a '>>>>>> '.
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-R,--no-report Do not generate the annotated reports. Useful if
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you want to accumulate several over tests.
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-C,--coverdir= Generate .cover files in this directory
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Selection: Do not trace or log lines from ...
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--ignore-module=[string] modules with the given __name__, and submodules
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of that module
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--ignore-dir=[string] files in the stated directory (multiple
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directories can be joined by os.pathsep)
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The selection options can be listed multiple times to ignore different
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modules.
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""" % sys.argv[0])
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class Ignore:
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def __init__(self, modules = None, dirs = None):
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self._mods = modules or []
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self._dirs = dirs or []
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self._ignore = { '<string>': 1 }
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def names(self, filename, modulename):
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if self._ignore.has_key(modulename):
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return self._ignore[modulename]
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# haven't seen this one before, so see if the module name is
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# on the ignore list. Need to take some care since ignoring
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# "cmp" musn't mean ignoring "cmpcache" but ignoring
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# "Spam" must also mean ignoring "Spam.Eggs".
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for mod in self._mods:
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if mod == modulename: # Identical names, so ignore
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self._ignore[modulename] = 1
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return 1
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# check if the module is a proper submodule of something on
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# the ignore list
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n = len(mod)
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# (will not overflow since if the first n characters are the
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# same and the name has not already occured, then the size
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# of "name" is greater than that of "mod")
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if mod == modulename[:n] and modulename[n] == '.':
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self._ignore[modulename] = 1
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return 1
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# Now check that __file__ isn't in one of the directories
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if filename is None:
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# must be a built-in, so we must ignore
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self._ignore[modulename] = 1
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return 1
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# Ignore a file when it contains one of the ignorable paths
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for d in self._dirs:
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# The '+ os.sep' is to ensure that d is a parent directory,
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# as compared to cases like:
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# d = "/usr/local"
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# filename = "/usr/local.py"
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# or
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# d = "/usr/local.py"
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# filename = "/usr/local.py"
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if string.find(filename, d + os.sep) == 0:
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self._ignore[modulename] = 1
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return 1
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# Tried the different ways, so we don't ignore this module
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self._ignore[modulename] = 0
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return 0
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def run(trace, cmd):
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import __main__
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dict = __main__.__dict__
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sys.settrace(trace)
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try:
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exec cmd in dict, dict
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finally:
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sys.settrace(None)
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def runctx(trace, cmd, globals=None, locals=None):
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if globals is None: globals = {}
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if locals is None: locals = {}
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sys.settrace(trace)
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try:
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exec cmd in dict, dict
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finally:
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sys.settrace(None)
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def runfunc(trace, func, *args, **kw):
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result = None
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sys.settrace(trace)
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try:
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result = apply(func, args, kw)
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finally:
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sys.settrace(None)
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return result
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class CoverageResults:
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def __init__(self, counts = {}, modules = {}):
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self.counts = counts.copy() # map (filename, lineno) to count
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self.modules = modules.copy() # map filenames to modules
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def update(self, other):
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"""Merge in the data from another CoverageResults"""
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counts = self.counts
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other_counts = other.counts
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modules = self.modules
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other_modules = other.modules
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for key in other_counts.keys():
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counts[key] = counts.get(key, 0) + other_counts[key]
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for key in other_modules.keys():
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if modules.has_key(key):
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# make sure they point to the same file
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assert modules[key] == other_modules[key], \
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"Strange! filename %s has two different module " \
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"names: %s and %s" % \
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(key, modules[key], other_modules[key])
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else:
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modules[key] = other_modules[key]
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# Given a code string, return the SET_LINENO information
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def _find_LINENO_from_string(co_code):
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"""return all of the SET_LINENO information from a code string"""
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import dis
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linenos = {}
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# This code was filched from the `dis' module then modified
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n = len(co_code)
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i = 0
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prev_op = None
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prev_lineno = 0
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while i < n:
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c = co_code[i]
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op = ord(c)
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if op == dis.SET_LINENO:
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if prev_op == op:
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# two SET_LINENO in a row, so the previous didn't
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# indicate anything. This occurs with triple
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# quoted strings (?). Remove the old one.
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del linenos[prev_lineno]
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prev_lineno = ord(co_code[i+1]) + ord(co_code[i+2])*256
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linenos[prev_lineno] = 1
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if op >= dis.HAVE_ARGUMENT:
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i = i + 3
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else:
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i = i + 1
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prev_op = op
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return linenos
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def _find_LINENO(code):
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"""return all of the SET_LINENO information from a code object"""
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import types
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# get all of the lineno information from the code of this scope level
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linenos = _find_LINENO_from_string(code.co_code)
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# and check the constants for references to other code objects
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for c in code.co_consts:
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if type(c) == types.CodeType:
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# find another code object, so recurse into it
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linenos.update(_find_LINENO(c))
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return linenos
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def find_executable_linenos(filename):
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"""return a dict of the line numbers from executable statements in a file
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Works by finding all of the code-like objects in the module then searching
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the byte code for 'SET_LINENO' terms (so this won't work one -O files).
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"""
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import parser
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assert filename.endswith('.py')
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prog = open(filename).read()
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ast = parser.suite(prog)
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code = parser.compileast(ast, filename)
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# The only way I know to find line numbers is to look for the
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# SET_LINENO instructions. Isn't there some way to get it from
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# the AST?
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return _find_LINENO(code)
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### XXX because os.path.commonprefix seems broken by my way of thinking...
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def commonprefix(dirs):
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"Given a list of pathnames, returns the longest common leading component"
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if not dirs: return ''
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n = copy.copy(dirs)
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for i in range(len(n)):
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n[i] = n[i].split(os.sep)
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prefix = n[0]
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for item in n:
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for i in range(len(prefix)):
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if prefix[:i+1] <> item[:i+1]:
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prefix = prefix[:i]
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if i == 0: return ''
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break
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return os.sep.join(prefix)
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def create_results_log(results, dirname = ".", show_missing = 1,
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save_counts = 0, summary = 0, coverdir = None):
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import re
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# turn the counts data ("(filename, lineno) = count") into something
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# accessible on a per-file basis
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per_file = {}
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for filename, lineno in results.counts.keys():
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lines_hit = per_file[filename] = per_file.get(filename, {})
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lines_hit[lineno] = results.counts[(filename, lineno)]
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# try and merge existing counts and modules file from dirname
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try:
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counts = marshal.load(open(os.path.join(dirname, "counts")))
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modules = marshal.load(open(os.path.join(dirname, "modules")))
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results.update(results.__class__(counts, modules))
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except IOError:
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pass
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# there are many places where this is insufficient, like a blank
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# line embedded in a multiline string.
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blank = re.compile(r'^\s*(#.*)?$')
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# accumulate summary info, if needed
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sums = {}
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# generate file paths for the coverage files we are going to write...
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fnlist = []
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tfdir = tempfile.gettempdir()
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for key in per_file.keys():
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filename = key
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# skip some "files" we don't care about...
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if filename == "<string>":
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continue
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# are these caused by code compiled using exec or something?
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if filename.startswith(tfdir):
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continue
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modulename = os.path.split(results.modules[key])[1]
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if filename.endswith(".pyc") or filename.endswith(".pyo"):
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filename = filename[:-1]
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if coverdir:
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listfilename = os.path.join(coverdir, modulename + ".cover")
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else:
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# XXX this is almost certainly not portable!!!
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fndir = os.path.dirname(filename)
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if os.path.isabs(filename):
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coverpath = fndir
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else:
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coverpath = os.path.join(dirname, fndir)
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# build list file name by appending a ".cover" to the module name
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# and sticking it into the specified directory
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if "." in modulename:
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# A module in a package
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finalname = modulename.split(".")[-1]
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listfilename = os.path.join(coverpath, finalname + ".cover")
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else:
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listfilename = os.path.join(coverpath, modulename + ".cover")
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# Get the original lines from the .py file
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try:
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lines = open(filename, 'r').readlines()
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except IOError, err:
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print >> sys.stderr, "trace: Could not open %s for reading " \
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"because: %s - skipping" % (`filename`, err)
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continue
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try:
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outfile = open(listfilename, 'w')
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except IOError, err:
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sys.stderr.write(
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'%s: Could not open %s for writing because: %s" \
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"- skipping\n' % ("trace", `listfilename`, err))
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continue
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# If desired, get a list of the line numbers which represent
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# executable content (returned as a dict for better lookup speed)
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if show_missing:
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executable_linenos = find_executable_linenos(filename)
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else:
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executable_linenos = {}
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n_lines = 0
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n_hits = 0
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lines_hit = per_file[key]
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for i in range(len(lines)):
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line = lines[i]
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# do the blank/comment match to try to mark more lines
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# (help the reader find stuff that hasn't been covered)
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if lines_hit.has_key(i+1):
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# count precedes the lines that we captured
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outfile.write('%5d: ' % lines_hit[i+1])
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n_hits = n_hits + 1
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n_lines = n_lines + 1
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elif blank.match(line):
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# blank lines and comments are preceded by dots
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outfile.write(' . ')
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else:
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# lines preceded by no marks weren't hit
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# Highlight them if so indicated, unless the line contains
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# '#pragma: NO COVER' (it is possible to embed this into
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# the text as a non-comment; no easy fix)
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if executable_linenos.has_key(i+1) and \
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string.find(lines[i],
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string.join(['#pragma', 'NO COVER'])) == -1:
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outfile.write('>>>>>> ')
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else:
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outfile.write(' '*7)
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n_lines = n_lines + 1
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outfile.write(string.expandtabs(lines[i], 8))
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outfile.close()
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if summary and n_lines:
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percent = int(100 * n_hits / n_lines)
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sums[modulename] = n_lines, percent, modulename, filename
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if save_counts:
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# try and store counts and module info into dirname
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try:
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marshal.dump(results.counts,
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open(os.path.join(dirname, "counts"), "w"))
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marshal.dump(results.modules,
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open(os.path.join(dirname, "modules"), "w"))
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except IOError, err:
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sys.stderr.write("cannot save counts/modules " \
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"files because %s" % err)
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if summary and sums:
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mods = sums.keys()
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mods.sort()
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print "lines cov% module (path)"
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for m in mods:
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n_lines, percent, modulename, filename = sums[m]
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print "%5d %3d%% %s (%s)" % sums[m]
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# There is a lot of code shared between these two classes even though
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# it is straightforward to make a super class to share code. However,
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# for performance reasons (remember, this is called at every step) I
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# wanted to keep everything to a single function call. Also, by
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# staying within a single scope, I don't have to temporarily nullify
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# sys.settrace, which would slow things down even more.
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class Coverage:
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def __init__(self, ignore = Ignore()):
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self.ignore = ignore
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self.ignore_names = ignore._ignore # access ignore's cache (speed hack)
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self.counts = {} # keys are (filename, linenumber)
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self.modules = {} # maps filename -> module name
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def trace(self, frame, why, arg):
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if why == 'line':
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# something is fishy about getting the file name
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filename = frame.f_globals.get("__file__", None)
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if filename is None:
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filename = frame.f_code.co_filename
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try:
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modulename = frame.f_globals["__name__"]
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except KeyError:
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# PyRun_String() for example
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# XXX what to do?
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modulename = None
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# We do this next block to keep from having to make methods
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# calls, which also requires resetting the trace
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ignore_it = self.ignore_names.get(modulename, -1)
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if ignore_it == -1: # unknown filename
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sys.settrace(None)
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ignore_it = self.ignore.names(filename, modulename)
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sys.settrace(self.trace)
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# record the module name for every file
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self.modules[filename] = modulename
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if not ignore_it:
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lineno = frame.f_lineno
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# record the file name and line number of every trace
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key = (filename, lineno)
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self.counts[key] = self.counts.get(key, 0) + 1
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return self.trace
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def results(self):
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return CoverageResults(self.counts, self.modules)
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class Trace:
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def __init__(self, ignore = Ignore()):
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self.ignore = ignore
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self.ignore_names = ignore._ignore # access ignore's cache (speed hack)
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self.files = {'<string>': None} # stores lines from the .py file,
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# or None
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def trace(self, frame, why, arg):
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if why == 'line':
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filename = frame.f_code.co_filename
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try:
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modulename = frame.f_globals["__name__"]
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except KeyError:
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# PyRun_String() for example
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# XXX what to do?
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modulename = None
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# We do this next block to keep from having to make methods
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# calls, which also requires resetting the trace
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ignore_it = self.ignore_names.get(modulename, -1)
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if ignore_it == -1: # unknown filename
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sys.settrace(None)
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ignore_it = self.ignore.names(filename, modulename)
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sys.settrace(self.trace)
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|
|
if not ignore_it:
|
|
lineno = frame.f_lineno
|
|
files = self.files
|
|
|
|
if filename != '<string>' and not files.has_key(filename):
|
|
files[filename] = map(string.rstrip,
|
|
open(filename).readlines())
|
|
|
|
# If you want to see filenames (the original behaviour), try:
|
|
# modulename = filename
|
|
# or, prettier but confusing when several files have the
|
|
# same name
|
|
# modulename = os.path.basename(filename)
|
|
|
|
if files[filename] != None:
|
|
print '%s(%d): %s' % (os.path.basename(filename), lineno,
|
|
files[filename][lineno-1])
|
|
else:
|
|
print '%s(%d): ??' % (modulename, lineno)
|
|
|
|
return self.trace
|
|
|
|
|
|
def _err_exit(msg):
|
|
print >> sys.stderr, "%s: %s" % (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:",
|
|
["help", "version", "trace", "count",
|
|
"report", "no-report",
|
|
"file=", "logdir=", "missing",
|
|
"ignore-module=", "ignore-dir=",
|
|
"coverdir="])
|
|
|
|
except getopt.error, msg:
|
|
print >> sys.stderr, "%s: %s" % (sys.argv[0], msg)
|
|
print >> sys.stderr, "Try `%s --help' for more information" \
|
|
% sys.argv[0]
|
|
sys.exit(1)
|
|
|
|
trace = 0
|
|
count = 0
|
|
report = 0
|
|
no_report = 0
|
|
counts_file = None
|
|
logdir = "."
|
|
missing = 0
|
|
ignore_modules = []
|
|
ignore_dirs = []
|
|
coverdir = None
|
|
summary = 0
|
|
|
|
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 == "-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 == "-d" or opt == "--logdir":
|
|
logdir = 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 string.split(val, os.pathsep):
|
|
s = os.path.expandvars(s)
|
|
# should I also call expanduser? (after all, could use $HOME)
|
|
|
|
s = string.replace(s, "$prefix",
|
|
os.path.join(sys.prefix, "lib",
|
|
"python" + sys.version[:3]))
|
|
s = string.replace(s, "$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 len(prog_argv) == 0:
|
|
_err_exit("missing name of file to run")
|
|
|
|
if count + trace + report > 1:
|
|
_err_exit("can only specify one of --trace, --count or --report")
|
|
|
|
if count + trace + report == 0:
|
|
_err_exit("must specify one of --trace, --count or --report")
|
|
|
|
if report and counts_file is None:
|
|
_err_exit("--report requires a --file")
|
|
|
|
if report and no_report:
|
|
_err_exit("cannot specify both --report and --no-report")
|
|
|
|
if logdir is not None:
|
|
# warn if the directory doesn't exist, but keep on going
|
|
# (is this the correct behaviour?)
|
|
if not os.path.isdir(logdir):
|
|
sys.stderr.write(
|
|
"trace: WARNING, --logdir directory %s is not available\n" %
|
|
`logdir`)
|
|
|
|
sys.argv = prog_argv
|
|
progname = prog_argv[0]
|
|
if eval(sys.version[:3])>1.3:
|
|
sys.path[0] = os.path.split(progname)[0] # ???
|
|
|
|
# everything is ready
|
|
ignore = Ignore(ignore_modules, ignore_dirs)
|
|
if trace:
|
|
t = Trace(ignore)
|
|
try:
|
|
run(t.trace, 'execfile(' + `progname` + ')')
|
|
except IOError, err:
|
|
_err_exit("Cannot run file %s because: %s" % \
|
|
(`sys.argv[0]`, err))
|
|
|
|
elif count:
|
|
t = Coverage(ignore)
|
|
try:
|
|
run(t.trace, 'execfile(' + `progname` + ')')
|
|
except IOError, err:
|
|
_err_exit("Cannot run file %s because: %s" % \
|
|
(`sys.argv[0]`, err))
|
|
except SystemExit:
|
|
pass
|
|
|
|
results = t.results()
|
|
# Add another lookup from the program's file name to its import name
|
|
# This give the right results, but I'm not sure why ...
|
|
results.modules[progname] = os.path.splitext(progname)[0]
|
|
|
|
if counts_file:
|
|
# add in archived data, if available
|
|
try:
|
|
old_counts, old_modules = marshal.load(open(counts_file, 'rb'))
|
|
except IOError:
|
|
pass
|
|
else:
|
|
results.update(CoverageResults(old_counts, old_modules))
|
|
|
|
if not no_report:
|
|
create_results_log(results, logdir, missing,
|
|
summary=summary, coverdir=coverdir)
|
|
|
|
if counts_file:
|
|
try:
|
|
marshal.dump( (results.counts, results.modules),
|
|
open(counts_file, 'wb'))
|
|
except IOError, err:
|
|
_err_exit("Cannot save counts file %s because: %s" % \
|
|
(`counts_file`, err))
|
|
|
|
elif report:
|
|
old_counts, old_modules = marshal.load(open(counts_file, 'rb'))
|
|
results = CoverageResults(old_counts, old_modules)
|
|
create_results_log(results, logdir, missing,
|
|
summary=summary, coverdir=coverdir)
|
|
|
|
else:
|
|
assert 0, "Should never get here"
|
|
|
|
if __name__=='__main__':
|
|
main()
|