Add file_utils module

lbrynet/core/file_utils.py

@@ -0,0 +1,35 @@
+import os
+import sys
+import subprocess
+
+def start(path):
+    """ 
+    Open a file with the OS's default program. (Cross-platform equivalent of os.startfile() for
+    Windows)
+    """
+
+    if not os.path.isfile(path):
+        raise(IOError, "No such file: '%s'" % path)
+
+    if sys.platform == 'darwin':
+        subprocess.Popen(['open', path])
+    elif os.name == 'posix':
+        subprocess.Popen(['xdg-open', path])
+    elif sys.platform == 'win32':
+        os.startfile(path)
+
+def reveal(path):
+    """
+    Reveal a file in file browser.
+    """
+
+    if not os.path.isfile(path):
+        raise(IOError, "No such file: '%s'" % path)
+
+    if sys.platform == 'darwin':
+        subprocess.Popen(['open', '-R', path])
+    elif os.name == 'posix':
+        # No easy way to reveal specific files on Linux, so just open the containing directory
+        subprocess.Popen(['xdg-open', os.path.dirname(path)])
+    elif sys.platform == 'win32':
+        subprocess.Popen(['explorer', '/select', path])