Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(214)

Unified Diff: tools/telemetry/third_party/coverage/coverage/execfile.py

Issue 1366913004: Add coverage Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 3 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: tools/telemetry/third_party/coverage/coverage/execfile.py
diff --git a/tools/telemetry/third_party/coverage/coverage/execfile.py b/tools/telemetry/third_party/coverage/coverage/execfile.py
new file mode 100644
index 0000000000000000000000000000000000000000..1845f8d73e89f7b6583e0d966e9912379b922960
--- /dev/null
+++ b/tools/telemetry/third_party/coverage/coverage/execfile.py
@@ -0,0 +1,237 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+"""Execute files of Python code."""
+
+import marshal
+import os
+import sys
+import types
+
+from coverage.backward import BUILTINS
+from coverage.backward import PYC_MAGIC_NUMBER, imp, importlib_util_find_spec
+from coverage.misc import ExceptionDuringRun, NoCode, NoSource
+from coverage.phystokens import compile_unicode
+from coverage.python import get_python_source
+
+
+class DummyLoader(object):
+ """A shim for the pep302 __loader__, emulating pkgutil.ImpLoader.
+
+ Currently only implements the .fullname attribute
+ """
+ def __init__(self, fullname, *_args):
+ self.fullname = fullname
+
+
+if importlib_util_find_spec:
+ def find_module(modulename):
+ """Find the module named `modulename`.
+
+ Returns the file path of the module, and the name of the enclosing
+ package.
+ """
+ try:
+ spec = importlib_util_find_spec(modulename)
+ except ImportError as err:
+ raise NoSource(str(err))
+ if not spec:
+ raise NoSource("No module named %r" % (modulename,))
+ pathname = spec.origin
+ packagename = spec.name
+ if pathname.endswith("__init__.py"):
+ mod_main = modulename + ".__main__"
+ spec = importlib_util_find_spec(mod_main)
+ if not spec:
+ raise NoSource(
+ "No module named %s; "
+ "%r is a package and cannot be directly executed"
+ % (mod_main, modulename)
+ )
+ pathname = spec.origin
+ packagename = spec.name
+ packagename = packagename.rpartition(".")[0]
+ return pathname, packagename
+else:
+ def find_module(modulename):
+ """Find the module named `modulename`.
+
+ Returns the file path of the module, and the name of the enclosing
+ package.
+ """
+ openfile = None
+ glo, loc = globals(), locals()
+ try:
+ # Search for the module - inside its parent package, if any - using
+ # standard import mechanics.
+ if '.' in modulename:
+ packagename, name = modulename.rsplit('.', 1)
+ package = __import__(packagename, glo, loc, ['__path__'])
+ searchpath = package.__path__
+ else:
+ packagename, name = None, modulename
+ searchpath = None # "top-level search" in imp.find_module()
+ openfile, pathname, _ = imp.find_module(name, searchpath)
+
+ # Complain if this is a magic non-file module.
+ if openfile is None and pathname is None:
+ raise NoSource(
+ "module does not live in a file: %r" % modulename
+ )
+
+ # If `modulename` is actually a package, not a mere module, then we
+ # pretend to be Python 2.7 and try running its __main__.py script.
+ if openfile is None:
+ packagename = modulename
+ name = '__main__'
+ package = __import__(packagename, glo, loc, ['__path__'])
+ searchpath = package.__path__
+ openfile, pathname, _ = imp.find_module(name, searchpath)
+ except ImportError as err:
+ raise NoSource(str(err))
+ finally:
+ if openfile:
+ openfile.close()
+
+ return pathname, packagename
+
+
+def run_python_module(modulename, args):
+ """Run a Python module, as though with ``python -m name args...``.
+
+ `modulename` is the name of the module, possibly a dot-separated name.
+ `args` is the argument array to present as sys.argv, including the first
+ element naming the module being executed.
+
+ """
+ pathname, packagename = find_module(modulename)
+
+ pathname = os.path.abspath(pathname)
+ args[0] = pathname
+ run_python_file(pathname, args, package=packagename, modulename=modulename, path0="")
+
+
+def run_python_file(filename, args, package=None, modulename=None, path0=None):
+ """Run a Python file as if it were the main program on the command line.
+
+ `filename` is the path to the file to execute, it need not be a .py file.
+ `args` is the argument array to present as sys.argv, including the first
+ element naming the file being executed. `package` is the name of the
+ enclosing package, if any.
+
+ `modulename` is the name of the module the file was run as.
+
+ `path0` is the value to put into sys.path[0]. If it's None, then this
+ function will decide on a value.
+
+ """
+ if modulename is None and sys.version_info >= (3, 3):
+ modulename = '__main__'
+
+ # Create a module to serve as __main__
+ old_main_mod = sys.modules['__main__']
+ main_mod = types.ModuleType('__main__')
+ sys.modules['__main__'] = main_mod
+ main_mod.__file__ = filename
+ if package:
+ main_mod.__package__ = package
+ if modulename:
+ main_mod.__loader__ = DummyLoader(modulename)
+
+ main_mod.__builtins__ = BUILTINS
+
+ # Set sys.argv properly.
+ old_argv = sys.argv
+ sys.argv = args
+
+ if os.path.isdir(filename):
+ # Running a directory means running the __main__.py file in that
+ # directory.
+ my_path0 = filename
+
+ for ext in [".py", ".pyc", ".pyo"]:
+ try_filename = os.path.join(filename, "__main__" + ext)
+ if os.path.exists(try_filename):
+ filename = try_filename
+ break
+ else:
+ raise NoSource("Can't find '__main__' module in '%s'" % filename)
+ else:
+ my_path0 = os.path.abspath(os.path.dirname(filename))
+
+ # Set sys.path correctly.
+ old_path0 = sys.path[0]
+ sys.path[0] = path0 if path0 is not None else my_path0
+
+ try:
+ # Make a code object somehow.
+ if filename.endswith((".pyc", ".pyo")):
+ code = make_code_from_pyc(filename)
+ else:
+ code = make_code_from_py(filename)
+
+ # Execute the code object.
+ try:
+ exec(code, main_mod.__dict__)
+ except SystemExit:
+ # The user called sys.exit(). Just pass it along to the upper
+ # layers, where it will be handled.
+ raise
+ except:
+ # Something went wrong while executing the user code.
+ # Get the exc_info, and pack them into an exception that we can
+ # throw up to the outer loop. We peel one layer off the traceback
+ # so that the coverage.py code doesn't appear in the final printed
+ # traceback.
+ typ, err, tb = sys.exc_info()
+
+ # PyPy3 weirdness. If I don't access __context__, then somehow it
+ # is non-None when the exception is reported at the upper layer,
+ # and a nested exception is shown to the user. This getattr fixes
+ # it somehow? https://bitbucket.org/pypy/pypy/issue/1903
+ getattr(err, '__context__', None)
+
+ raise ExceptionDuringRun(typ, err, tb.tb_next)
+ finally:
+ # Restore the old __main__, argv, and path.
+ sys.modules['__main__'] = old_main_mod
+ sys.argv = old_argv
+ sys.path[0] = old_path0
+
+
+def make_code_from_py(filename):
+ """Get source from `filename` and make a code object of it."""
+ # Open the source file.
+ try:
+ source = get_python_source(filename)
+ except (IOError, NoSource):
+ raise NoSource("No file to run: '%s'" % filename)
+
+ code = compile_unicode(source, filename, "exec")
+ return code
+
+
+def make_code_from_pyc(filename):
+ """Get a code object from a .pyc file."""
+ try:
+ fpyc = open(filename, "rb")
+ except IOError:
+ raise NoCode("No file to run: '%s'" % filename)
+
+ with fpyc:
+ # First four bytes are a version-specific magic number. It has to
+ # match or we won't run the file.
+ magic = fpyc.read(4)
+ if magic != PYC_MAGIC_NUMBER:
+ raise NoCode("Bad magic number in .pyc file")
+
+ # Skip the junk in the header that we don't need.
+ fpyc.read(4) # Skip the moddate.
+ if sys.version_info >= (3, 3):
+ # 3.3 added another long to the header (size), skip it.
+ fpyc.read(4)
+
+ # The rest of the file is the code object we want.
+ code = marshal.load(fpyc)
+
+ return code
« no previous file with comments | « tools/telemetry/third_party/coverage/coverage/env.py ('k') | tools/telemetry/third_party/coverage/coverage/files.py » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698