From 6c588f189de5d97cd50eeb9f1bb586f3dc4baa0e Mon Sep 17 00:00:00 2001
From: Paul Hooijenga <paulhooijenga@gmail.com>
Date: Sat, 1 Apr 2017 20:29:31 +0200
Subject: [PATCH 1/2] Windows: enable ANSI escape support in console.

---
 pre_commit/color.py         |  8 ++++++
 pre_commit/color_windows.py | 49 +++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 pre_commit/color_windows.py

diff --git a/pre_commit/color.py b/pre_commit/color.py
index 686d85bf..25fbb256 100644
--- a/pre_commit/color.py
+++ b/pre_commit/color.py
@@ -1,7 +1,15 @@
 from __future__ import unicode_literals
 
+import os
 import sys
 
+if os.name == 'nt':  # pragma: no cover (windows)
+    from pre_commit.color_windows import enable_virtual_terminal_processing
+    try:
+        enable_virtual_terminal_processing()
+    except WindowsError:
+        pass
+
 RED = '\033[41m'
 GREEN = '\033[42m'
 YELLOW = '\033[43;30m'
diff --git a/pre_commit/color_windows.py b/pre_commit/color_windows.py
new file mode 100644
index 00000000..d44e0b80
--- /dev/null
+++ b/pre_commit/color_windows.py
@@ -0,0 +1,49 @@
+from __future__ import unicode_literals
+
+from ctypes import POINTER
+from ctypes import windll
+from ctypes import WinError
+from ctypes import WINFUNCTYPE
+from ctypes.wintypes import BOOL
+from ctypes.wintypes import DWORD
+from ctypes.wintypes import HANDLE
+
+STD_OUTPUT_HANDLE = -11
+ENABLE_VIRTUAL_TERMINAL_PROCESSING = 4
+
+
+def bool_errcheck(result, func, args):
+    if not result:
+        raise WinError()
+    return args
+
+
+GetStdHandle = WINFUNCTYPE(HANDLE, DWORD)(
+    ("GetStdHandle", windll.kernel32),
+    ((1, "nStdHandle"), )
+)
+
+GetConsoleMode = WINFUNCTYPE(BOOL, HANDLE, POINTER(DWORD))(
+    ("GetConsoleMode", windll.kernel32),
+    ((1, "hConsoleHandle"), (2, "lpMode"))
+)
+GetConsoleMode.errcheck = bool_errcheck
+
+SetConsoleMode = WINFUNCTYPE(BOOL, HANDLE, DWORD)(
+    ("SetConsoleMode", windll.kernel32),
+    ((1, "hConsoleHandle"), (1, "dwMode"))
+)
+SetConsoleMode.errcheck = bool_errcheck
+
+
+def enable_virtual_terminal_processing():
+    """As of Windows 10, the Windows console supports (some) ANSI escape
+    sequences, but it needs to be enabled using `SetConsoleMode` first.
+
+    More info on the escape sequences supported:
+    https://msdn.microsoft.com/en-us/library/windows/desktop/mt638032(v=vs.85).aspx
+
+    """
+    stdout = GetStdHandle(STD_OUTPUT_HANDLE)
+    flags = GetConsoleMode(stdout)
+    SetConsoleMode(stdout, flags | ENABLE_VIRTUAL_TERMINAL_PROCESSING)

From 3c374802ec98834edefb87661cac3819fd9dd148 Mon Sep 17 00:00:00 2001
From: Paul Hooijenga <paul.hooijenga@sanoma.com>
Date: Fri, 7 Apr 2017 21:10:19 +0200
Subject: [PATCH 2/2] Omit Windows only file from coverage.

---
 .coveragerc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.coveragerc b/.coveragerc
index f73b9e3d..a94ba5cd 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -8,6 +8,7 @@ omit =
     setup.py
     # Don't complain if non-runnable code isn't run
     */__main__.py
+    pre_commit/color_windows.py
 
 [report]
 show_missing = True