The blame module now only shows progress in text format output.

blame.py

@@ -21,6 +21,7 @@ from __future__ import print_function
 from changes import FileDiff
 import comment
 import filtering
+import format
 import missing
 import multiprocessing
 import re
@@ -103,7 +104,7 @@ class Blame:
 
 	@staticmethod
 	def output_progress(pos, length):
-		if sys.stdout.isatty():
+		if sys.stdout.isatty() and format.is_interactive_format():
 			terminal.clear_row()
 			print("\bChecking how many rows belong to each author (Progress): {0:.0f}%".format(100 * pos / length), end="")
 			sys.stdout.flush()

format.py

@@ -34,6 +34,10 @@ def select(format):
 
 	return format in __available_formats__
 
+def is_interactive_format():
+	global __selected_format__
+	return __selected_format__ == "text"
+
 def output_header():
 	if __selected_format__ == "html":
 		pass