1 files changed, 82 insertions, 0 deletions
diff --git a/tools/scan-build-py/libscanbuild/__init__.py b/tools/scan-build-py/libscanbuild/__init__.py
new file mode 100644
index 0000000000..c020b4e434
--- /dev/null
+++ b/tools/scan-build-py/libscanbuild/__init__.py
@@ -0,0 +1,82 @@
+# -*- coding: utf-8 -*-
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+"""
+This module responsible to run the Clang static analyzer against any build
+and generate reports.
+"""
+
+
+def duplicate_check(method):
+    """ Predicate to detect duplicated entries.
+
+    Unique hash method can be use to detect duplicates. Entries are
+    represented as dictionaries, which has no default hash method.
+    This implementation uses a set datatype to store the unique hash values.
+
+    This method returns a method which can detect the duplicate values. """
+
+    def predicate(entry):
+        entry_hash = predicate.unique(entry)
+        if entry_hash not in predicate.state:
+            predicate.state.add(entry_hash)
+            return False
+        return True
+
+    predicate.unique = method
+    predicate.state = set()
+    return predicate
+
+
+def tempdir():
+    """ Return the default temorary directory. """
+
+    from os import getenv
+    return getenv('TMPDIR', getenv('TEMP', getenv('TMP', '/tmp')))
+
+
+def initialize_logging(verbose_level):
+    """ Output content controlled by the verbosity level. """
+
+    import sys
+    import os.path
+    import logging
+    level = logging.WARNING - min(logging.WARNING, (10 * verbose_level))
+
+    if verbose_level <= 3:
+        fmt_string = '{0}: %(levelname)s: %(message)s'
+    else:
+        fmt_string = '{0}: %(levelname)s: %(funcName)s: %(message)s'
+
+    program = os.path.basename(sys.argv[0])
+    logging.basicConfig(format=fmt_string.format(program), level=level)
+
+
+def command_entry_point(function):
+    """ Decorator for command entry points. """
+
+    import functools
+    import logging
+
+    @functools.wraps(function)
+    def wrapper(*args, **kwargs):
+
+        exit_code = 127
+        try:
+            exit_code = function(*args, **kwargs)
+        except KeyboardInterrupt:
+            logging.warning('Keyboard interupt')
+        except Exception:
+            logging.exception('Internal error.')
+            if logging.getLogger().isEnabledFor(logging.DEBUG):
+                logging.error("Please report this bug and attach the output "
+                              "to the bug report")
+            else:
+                logging.error("Please run this command again and turn on "
+                              "verbose mode (add '-vvv' as argument).")
+        finally:
+            return exit_code
+
+    return wrapper