add indicator to debug output when using a standalone executable

gallery_dl/__init__.py

@@ -142,20 +142,23 @@ def main():
             import os.path
             import requests
 
-            head = ""
+            extra = ""
-            try:
+            if getattr(sys, "frozen", False):
-                out, err = subprocess.Popen(
+                extra = " - Executable"
-                    ("git", "rev-parse", "--short", "HEAD"),
+            else:
-                    stdout=subprocess.PIPE,
+                try:
-                    stderr=subprocess.PIPE,
+                    out, err = subprocess.Popen(
-                    cwd=os.path.dirname(os.path.abspath(__file__)),
+                        ("git", "rev-parse", "--short", "HEAD"),
-                ).communicate()
+                        stdout=subprocess.PIPE,
-                if out and not err:
+                        stderr=subprocess.PIPE,
-                    head = " - Git HEAD: " + out.decode().rstrip()
+                        cwd=os.path.dirname(os.path.abspath(__file__)),
-            except (OSError, subprocess.SubprocessError):
+                    ).communicate()
-                pass
+                    if out and not err:
+                        extra = " - Git HEAD: " + out.decode().rstrip()
+                except (OSError, subprocess.SubprocessError):
+                    pass
 
-            log.debug("Version %s%s", __version__, head)
+            log.debug("Version %s%s", __version__, extra)
             log.debug("Python %s - %s",
                       platform.python_version(), platform.platform())
             try: