1 files changed, 102 insertions, 0 deletions
diff --git a/longbow/src/python/site-packages/longbow/FileUtil.py b/longbow/src/python/site-packages/longbow/FileUtil.py
new file mode 100755
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+++ b/longbow/src/python/site-packages/longbow/FileUtil.py
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+#! /usr/bin/env python
+# Copyright (c) 2017 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#
+
+import sys
+import os
+import csv
+import subprocess
+
+def readFileLines(fileName):
+    '''
+    Get the entire file into memory as a list of lines.
+    '''
+    result = None
+
+    with open(fileName, "r") as file:
+        result = file.readlines()
+
+    return result
+
+def readFileString(fileName):
+    '''
+    Get the entire file into memory as a python string.
+    '''
+    result = None
+
+    if fileName != None and len(fileName) > 0:
+        with open (fileName, "r") as file:
+            result = file.read()
+
+    return result
+
+def sourceFileNameToName(sourceFileName):
+    '''
+    Given the path to a source file, return the name without any path components or trailing suffix.
+    '''
+    name = os.path.basename(sourceFileName)
+    return name.split(".")[0]
+
+def canonicalizeFunctionName(functionName):
+    '''
+    Given a function name that contains the initial '_' character,
+    strip it and return a canonicalised form of the same name suitable for a source file.
+    '''
+    if functionName[0] == "_":
+        functionName = functionName[1:]
+    return functionName
+
+def isReservedName(functionName):
+    '''
+    Given a canonicalized name, determine if it is a reserved name according to ISO/IEC 9899:2011 and  ANSI Sec. 4.1.2.1,
+    identifiers that begin with an underscore and either an uppercase letter or another underscore are always reserved for any use.
+    '''
+    if functionName[0] == '_' and functionName[1] == '_':
+        return True
+    elif functionName[0] == '_' and functionName[1].isupper():
+        return True
+    return False
+
+def getDarwinTestableFunctions(objectFileName):
+    '''
+    Retrieve a set of local and global function names within a file.
+    '''
+    command = [ "/usr/bin/nm", "-gUm", objectFileName ]
+
+    output = subprocess.check_output(command)
+    lines = output.splitlines()
+
+    external = []
+    internal = []
+    for line in lines:
+        if line:
+            fields = line.split(" ")
+            if (len(fields) > 1) and (fields[1] == "(__TEXT,__text)"):
+                functionName = canonicalizeFunctionName(fields[3])
+
+                if not isReservedName(functionName):
+                    if fields[2] == "external":
+                        external.append( ( functionName ) )
+                    else:
+                        internal.append( ( functionName ) )
+                        pass
+                pass
+            pass
+    pass
+
+    external.sort()
+    internal.sort()
+    return { "Local": internal, "Global" : external }