Fixing encoding error when redirecting stdout/err to a file (#210)

portablemc/cli/__init__.py

@@ -11,6 +11,7 @@
 from pathlib import Path
 import socket
 import sys
+import io
 
 from .parse import register_arguments, RootNs, SearchNs, StartNs, LoginNs, LogoutNs, AuthBaseNs, ShowCompletionNs
 
@@ -67,6 +68,13 @@ def main(args: Optional[List[str]] = None):
     `get_command_handlers` function.
     """
 
+    # Force stdout/stderr to use UTF-8 encoding, this reconfigure method 
+    # is available for Python 3.7 and onward.
+    if isinstance(sys.stdout, io.TextIOWrapper):
+        sys.stdout.reconfigure(encoding='utf-8')
+    if isinstance(sys.stderr, io.TextIOWrapper):
+        sys.stderr.reconfigure(encoding='utf-8')
+
     parser = register_arguments()
     ns: RootNs = cast(RootNs, parser.parse_args(args or sys.argv[1:]))
 

portablemc/cli/output.py

@@ -175,10 +175,10 @@ def print(self, text: str) -> None:
                     break
 
             if chosen_color is not None:
-                print(chosen_color, text, "\033[0m", sep="", end="")
+                print(chosen_color, text, "\033[0m", sep="", end="", flush=True)
                 return
 
-        print(text, end="")
+        print(text, end="", flush=True)
 
     def prompt(self, password: bool = False) -> Optional[str]:
         try:
@@ -247,7 +247,7 @@ def print(self) -> None:
 
                 print(format_string.format(*format_columns), flush=False)
 
-        print("└─{}─┘".format("─┴─".join(columns_lines)))
+        print("└─{}─┘".format("─┴─".join(columns_lines)), flush=True)
 
 
 class MachineOutput(Output):