94 lines
2.4 KiB
Python
Executable file
94 lines
2.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright 2006 Google, Inc. All Rights Reserved.
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# Licensed to PSF under a Contributor Agreement.
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"""Main program for testing the infrastructure."""
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from __future__ import print_function
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__author__ = "Guido van Rossum <guido@python.org>"
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# Support imports (need to be imported first)
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from . import support
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# Python imports
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import os
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import sys
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import logging
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# Local imports
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from .. import pytree
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import pgen2
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from pgen2 import driver
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logging.basicConfig()
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def main():
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gr = driver.load_grammar("Grammar.txt")
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dr = driver.Driver(gr, convert=pytree.convert)
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fn = "example.py"
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tree = dr.parse_file(fn, debug=True)
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if not diff(fn, tree):
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print("No diffs.")
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if not sys.argv[1:]:
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return # Pass a dummy argument to run the complete test suite below
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problems = []
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# Process every imported module
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for name in sys.modules:
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mod = sys.modules[name]
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if mod is None or not hasattr(mod, "__file__"):
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continue
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fn = mod.__file__
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if fn.endswith(".pyc"):
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fn = fn[:-1]
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if not fn.endswith(".py"):
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continue
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print("Parsing", fn, file=sys.stderr)
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tree = dr.parse_file(fn, debug=True)
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if diff(fn, tree):
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problems.append(fn)
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# Process every single module on sys.path (but not in packages)
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for dir in sys.path:
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try:
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names = os.listdir(dir)
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except OSError:
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continue
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print("Scanning", dir, "...", file=sys.stderr)
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for name in names:
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if not name.endswith(".py"):
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continue
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print("Parsing", name, file=sys.stderr)
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fn = os.path.join(dir, name)
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try:
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tree = dr.parse_file(fn, debug=True)
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except pgen2.parse.ParseError as err:
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print("ParseError:", err)
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else:
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if diff(fn, tree):
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problems.append(fn)
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# Show summary of problem files
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if not problems:
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print("No problems. Congratulations!")
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else:
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print("Problems in following files:")
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for fn in problems:
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print("***", fn)
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def diff(fn, tree):
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f = open("@", "w")
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try:
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f.write(str(tree))
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finally:
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f.close()
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try:
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return os.system("diff -u %s @" % fn)
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finally:
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os.remove("@")
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if __name__ == "__main__":
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main()
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