Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / tools / patman / terminal.py

diff --git a/qemu/roms/u-boot/tools/patman/terminal.py b/qemu/roms/u-boot/tools/patman/terminal.py
new file mode 100644 (file)
index 0000000..597d526
--- /dev/null
+++ b/qemu/roms/u-boot/tools/patman/terminal.py
@@ -0,0 +1,80 @@
+# Copyright (c) 2011 The Chromium OS Authors.
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+"""Terminal utilities
+
+This module handles terminal interaction including ANSI color codes.
+"""
+
+import os
+import sys
+
+# Selection of when we want our output to be colored
+COLOR_IF_TERMINAL, COLOR_ALWAYS, COLOR_NEVER = range(3)
+
+class Color(object):
+  """Conditionally wraps text in ANSI color escape sequences."""
+  BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE = range(8)
+  BOLD = -1
+  BRIGHT_START = '\033[1;%dm'
+  NORMAL_START = '\033[22;%dm'
+  BOLD_START = '\033[1m'
+  RESET = '\033[0m'
+
+  def __init__(self, colored=COLOR_IF_TERMINAL):
+    """Create a new Color object, optionally disabling color output.
+
+    Args:
+      enabled: True if color output should be enabled. If False then this
+        class will not add color codes at all.
+    """
+    self._enabled = (colored == COLOR_ALWAYS or
+        (colored == COLOR_IF_TERMINAL and os.isatty(sys.stdout.fileno())))
+
+  def Start(self, color, bright=True):
+    """Returns a start color code.
+
+    Args:
+      color: Color to use, .e.g BLACK, RED, etc.
+
+    Returns:
+      If color is enabled, returns an ANSI sequence to start the given color,
+      otherwise returns empty string
+    """
+    if self._enabled:
+        base = self.BRIGHT_START if bright else self.NORMAL_START
+        return base % (color + 30)
+    return ''
+
+  def Stop(self):
+    """Retruns a stop color code.
+
+    Returns:
+      If color is enabled, returns an ANSI color reset sequence, otherwise
+      returns empty string
+    """
+    if self._enabled:
+        return self.RESET
+    return ''
+
+  def Color(self, color, text, bright=True):
+    """Returns text with conditionally added color escape sequences.
+
+    Keyword arguments:
+      color: Text color -- one of the color constants defined in this class.
+      text: The text to color.
+
+    Returns:
+      If self._enabled is False, returns the original text. If it's True,
+      returns text with color escape sequences based on the value of color.
+    """
+    if not self._enabled:
+        return text
+    if color == self.BOLD:
+        start = self.BOLD_START
+    else:
+        base = self.BRIGHT_START if bright else self.NORMAL_START
+        start = base % (color + 30)
+    return start + text + self.RESET