Adding mozilla libraries required by Firefox interop test.

third_party/mozrunner/mozrunner/utils.py

+#!/usr/bin/env python
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""
+utility functions for mozrunner
+"""
+
+__all__ = ['findInPath', 'get_metadata_from_egg']
+
+import mozinfo
+import os
+import sys
+
+
+### python package method metadata by introspection
+try:
+    import pkg_resources
+    def get_metadata_from_egg(module):
+        ret = {}
+        try:
+            dist = pkg_resources.get_distribution(module)
+        except pkg_resources.DistributionNotFound:
+            return {}
+        if dist.has_metadata("PKG-INFO"):
+            key = None
+            for line in dist.get_metadata("PKG-INFO").splitlines():
+                # see http://www.python.org/dev/peps/pep-0314/
+                if key == 'Description':
+                    # descriptions can be long
+                    if not line or line[0].isspace():
+                        value += '\n' + line
+                        continue
+                    else:
+                        key = key.strip()
+                        value = value.strip()
+                        ret[key] = value
+
+                key, value = line.split(':', 1)
+                key = key.strip()
+                value = value.strip()
+                ret[key] = value
+        if dist.has_metadata("requires.txt"):
+            ret["Dependencies"] = "\n" + dist.get_metadata("requires.txt")
+        return ret
+except ImportError:
+    # package resources not avaialable
+    def get_metadata_from_egg(module):
+        return {}
+
+
+def findInPath(fileName, path=os.environ['PATH']):
+    """python equivalent of which; should really be in the stdlib"""
+    dirs = path.split(os.pathsep)
+    for dir in dirs:
+        if os.path.isfile(os.path.join(dir, fileName)):
+            return os.path.join(dir, fileName)
+        if mozinfo.isWin:
+            if os.path.isfile(os.path.join(dir, fileName + ".exe")):
+                return os.path.join(dir, fileName + ".exe")
+
+if __name__ == '__main__':
+    for i in sys.argv[1:]:
+        print findInPath(i)