Add initial OS environment helpers

helpers/os_environment.py

@@ -0,0 +1,42 @@
+import sys
+import os
+
+# Check if we're running inside a pyinstaller bundled (it's an exe)
+
+
+def isBundelled():
+    return getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS')
+
+
+def isWindows():
+    return sys.platform.startswith('win32')
+
+
+def isLinux():
+    return sys.platform.startswith('linux')
+
+
+def isMacOS():
+    return sys.platform.startswith('darwin')
+
+# This must be used to that relative file paths resolve inside the bundled versions.
+
+
+def resolve_local_file_path(relative_path):
+    """ Get absolute path to resource, works for dev and for PyInstaller """
+    try:
+        # PyInstaller creates a temp folder and stores path in _MEIPASS
+        base_path = sys._MEIPASS
+    except Exception:
+        base_path = os.path.abspath(".")
+
+    return os.path.join(base_path, relative_path)
+
+# Use this to resolve paths to resources not bundled within the bundled exe.
+
+
+def resolve_external_file_path(relative_path):
+    if (not relative_path.startswith("/")):
+        relative_path = "/" + relative_path
+    # Pass through abspath to correct any /'s with \'s on Windows
+    return os.path.abspath(os.getcwd() + relative_path)