Auto merge of #25654 - petrochenkov:encenv, r=alexcrichton

Fixes https://github.com/rust-lang/rust/issues/25268 and a couple of similar test errors

r? @alexcrichton 

1 files changed, 8 insertions, 4 deletions

diff --git a/src/etc/check-sanitycheck.py b/src/etc/check-sanitycheck.py
index fc8ed7b383e..0e103fbcffb 100644
--- a/src/etc/check-sanitycheck.py
+++ b/src/etc/check-sanitycheck.py
@@ -11,19 +11,18 @@
 # except according to those terms.
 
 import os
+import subprocess
 import sys
 import functools
 
 STATUS = 0
 
-
 def error_unless_permitted(env_var, message):
     global STATUS
     if not os.getenv(env_var):
         sys.stderr.write(message)
         STATUS = 1
 
-
 def only_on(platforms):
     def decorator(func):
         @functools.wraps(func)
@@ -33,8 +32,7 @@ def only_on(platforms):
         return inner
     return decorator
 
-
-@only_on(('linux', 'darwin', 'freebsd', 'openbsd'))
+@only_on(['linux', 'darwin', 'freebsd', 'openbsd'])
 def check_rlimit_core():
     import resource
     soft, hard = resource.getrlimit(resource.RLIMIT_CORE)
@@ -45,8 +43,14 @@ will segfault many rustc's, creating many potentially large core files.
 set ALLOW_NONZERO_RLIMIT_CORE to ignore this warning
 """ % (soft))
 
+@only_on(['win32'])
+def check_console_code_page():
+    if '65001' not in subprocess.check_output(['cmd', '/c', 'chcp']):
+        sys.stderr.write('Warning: the console output code page is not UTF-8, \
+some tests may fail. Use `cmd /c "chcp 65001"` to setup UTF-8 code page.\n')
 
 def main():
+    check_console_code_page()
     check_rlimit_core()
 
 if __name__ == '__main__':