Squashed 'waflib/' content from commit 982416b

git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830

1 files changed, 342 insertions, 0 deletions

diff --git a/ansiterm.py b/ansiterm.py
new file mode 100644
index 0000000..0d20c63
--- /dev/null
+++ b/ansiterm.py
@@ -0,0 +1,342 @@
+#!/usr/bin/env python
+# encoding: utf-8
+
+"""
+Emulate a vt100 terminal in cmd.exe
+
+By wrapping sys.stdout / sys.stderr with Ansiterm,
+the vt100 escape characters will be interpreted and
+the equivalent actions will be performed with Win32
+console commands.
+
+"""
+
+import os, re, sys
+from waflib import Utils
+
+wlock = Utils.threading.Lock()
+
+try:
+	from ctypes import Structure, windll, c_short, c_ushort, c_ulong, c_int, byref, c_wchar, POINTER, c_long
+except ImportError:
+
+	class AnsiTerm(object):
+		def __init__(self, stream):
+			self.stream = stream
+			try:
+				self.errors = self.stream.errors
+			except AttributeError:
+				pass # python 2.5
+			self.encoding = self.stream.encoding
+
+		def write(self, txt):
+			try:
+				wlock.acquire()
+				self.stream.write(txt)
+				self.stream.flush()
+			finally:
+				wlock.release()
+
+		def fileno(self):
+			return self.stream.fileno()
+
+		def flush(self):
+			self.stream.flush()
+
+		def isatty(self):
+			return self.stream.isatty()
+else:
+
+	class COORD(Structure):
+		_fields_ = [("X", c_short), ("Y", c_short)]
+
+	class SMALL_RECT(Structure):
+		_fields_ = [("Left", c_short), ("Top", c_short), ("Right", c_short), ("Bottom", c_short)]
+
+	class CONSOLE_SCREEN_BUFFER_INFO(Structure):
+		_fields_ = [("Size", COORD), ("CursorPosition", COORD), ("Attributes", c_ushort), ("Window", SMALL_RECT), ("MaximumWindowSize", COORD)]
+
+	class CONSOLE_CURSOR_INFO(Structure):
+		_fields_ = [('dwSize', c_ulong), ('bVisible', c_int)]
+
+	try:
+		_type = unicode
+	except NameError:
+		_type = str
+
+	to_int = lambda number, default: number and int(number) or default
+
+	STD_OUTPUT_HANDLE = -11
+	STD_ERROR_HANDLE = -12
+
+	windll.kernel32.GetStdHandle.argtypes = [c_ulong]
+	windll.kernel32.GetStdHandle.restype = c_ulong
+	windll.kernel32.GetConsoleScreenBufferInfo.argtypes = [c_ulong, POINTER(CONSOLE_SCREEN_BUFFER_INFO)]
+	windll.kernel32.GetConsoleScreenBufferInfo.restype = c_long
+	windll.kernel32.SetConsoleTextAttribute.argtypes = [c_ulong, c_ushort]
+	windll.kernel32.SetConsoleTextAttribute.restype = c_long
+	windll.kernel32.FillConsoleOutputCharacterW.argtypes = [c_ulong, c_wchar, c_ulong, POINTER(COORD), POINTER(c_ulong)]
+	windll.kernel32.FillConsoleOutputCharacterW.restype = c_long
+	windll.kernel32.FillConsoleOutputAttribute.argtypes = [c_ulong, c_ushort, c_ulong, POINTER(COORD), POINTER(c_ulong) ]
+	windll.kernel32.FillConsoleOutputAttribute.restype = c_long
+	windll.kernel32.SetConsoleCursorPosition.argtypes = [c_ulong, POINTER(COORD) ]
+	windll.kernel32.SetConsoleCursorPosition.restype = c_long
+	windll.kernel32.SetConsoleCursorInfo.argtypes = [c_ulong, POINTER(CONSOLE_CURSOR_INFO)]
+	windll.kernel32.SetConsoleCursorInfo.restype = c_long
+
+	class AnsiTerm(object):
+		"""
+		emulate a vt100 terminal in cmd.exe
+		"""
+		def __init__(self, s):
+			self.stream = s
+			try:
+				self.errors = s.errors
+			except AttributeError:
+				pass # python2.5
+			self.encoding = s.encoding
+			self.cursor_history = []
+
+			handle = (s.fileno() == 2) and STD_ERROR_HANDLE or STD_OUTPUT_HANDLE
+			self.hconsole = windll.kernel32.GetStdHandle(handle)
+
+			self._sbinfo = CONSOLE_SCREEN_BUFFER_INFO()
+
+			self._csinfo = CONSOLE_CURSOR_INFO()
+			windll.kernel32.GetConsoleCursorInfo(self.hconsole, byref(self._csinfo))
+
+			# just to double check that the console is usable
+			self._orig_sbinfo = CONSOLE_SCREEN_BUFFER_INFO()
+			r = windll.kernel32.GetConsoleScreenBufferInfo(self.hconsole, byref(self._orig_sbinfo))
+			self._isatty = r == 1
+
+		def screen_buffer_info(self):
+			"""
+			Updates self._sbinfo and returns it
+			"""
+			windll.kernel32.GetConsoleScreenBufferInfo(self.hconsole, byref(self._sbinfo))
+			return self._sbinfo
+
+		def clear_line(self, param):
+			mode = param and int(param) or 0
+			sbinfo = self.screen_buffer_info()
+			if mode == 1: # Clear from beginning of line to cursor position
+				line_start = COORD(0, sbinfo.CursorPosition.Y)
+				line_length = sbinfo.Size.X
+			elif mode == 2: # Clear entire line
+				line_start = COORD(sbinfo.CursorPosition.X, sbinfo.CursorPosition.Y)
+				line_length = sbinfo.Size.X - sbinfo.CursorPosition.X
+			else: # Clear from cursor position to end of line
+				line_start = sbinfo.CursorPosition
+				line_length = sbinfo.Size.X - sbinfo.CursorPosition.X
+			chars_written = c_ulong()
+			windll.kernel32.FillConsoleOutputCharacterW(self.hconsole, c_wchar(' '), line_length, line_start, byref(chars_written))
+			windll.kernel32.FillConsoleOutputAttribute(self.hconsole, sbinfo.Attributes, line_length, line_start, byref(chars_written))
+
+		def clear_screen(self, param):
+			mode = to_int(param, 0)
+			sbinfo = self.screen_buffer_info()
+			if mode == 1: # Clear from beginning of screen to cursor position
+				clear_start = COORD(0, 0)
+				clear_length = sbinfo.CursorPosition.X * sbinfo.CursorPosition.Y
+			elif mode == 2: # Clear entire screen and return cursor to home
+				clear_start = COORD(0, 0)
+				clear_length = sbinfo.Size.X * sbinfo.Size.Y
+				windll.kernel32.SetConsoleCursorPosition(self.hconsole, clear_start)
+			else: # Clear from cursor position to end of screen
+				clear_start = sbinfo.CursorPosition
+				clear_length = ((sbinfo.Size.X - sbinfo.CursorPosition.X) + sbinfo.Size.X * (sbinfo.Size.Y - sbinfo.CursorPosition.Y))
+			chars_written = c_ulong()
+			windll.kernel32.FillConsoleOutputCharacterW(self.hconsole, c_wchar(' '), clear_length, clear_start, byref(chars_written))
+			windll.kernel32.FillConsoleOutputAttribute(self.hconsole, sbinfo.Attributes, clear_length, clear_start, byref(chars_written))
+
+		def push_cursor(self, param):
+			sbinfo = self.screen_buffer_info()
+			self.cursor_history.append(sbinfo.CursorPosition)
+
+		def pop_cursor(self, param):
+			if self.cursor_history:
+				old_pos = self.cursor_history.pop()
+				windll.kernel32.SetConsoleCursorPosition(self.hconsole, old_pos)
+
+		def set_cursor(self, param):
+			y, sep, x = param.partition(';')
+			x = to_int(x, 1) - 1
+			y = to_int(y, 1) - 1
+			sbinfo = self.screen_buffer_info()
+			new_pos = COORD(
+				min(max(0, x), sbinfo.Size.X),
+				min(max(0, y), sbinfo.Size.Y)
+			)
+			windll.kernel32.SetConsoleCursorPosition(self.hconsole, new_pos)
+
+		def set_column(self, param):
+			x = to_int(param, 1) - 1
+			sbinfo = self.screen_buffer_info()
+			new_pos = COORD(
+				min(max(0, x), sbinfo.Size.X),
+				sbinfo.CursorPosition.Y
+			)
+			windll.kernel32.SetConsoleCursorPosition(self.hconsole, new_pos)
+
+		def move_cursor(self, x_offset=0, y_offset=0):
+			sbinfo = self.screen_buffer_info()
+			new_pos = COORD(
+				min(max(0, sbinfo.CursorPosition.X + x_offset), sbinfo.Size.X),
+				min(max(0, sbinfo.CursorPosition.Y + y_offset), sbinfo.Size.Y)
+			)
+			windll.kernel32.SetConsoleCursorPosition(self.hconsole, new_pos)
+
+		def move_up(self, param):
+			self.move_cursor(y_offset = -to_int(param, 1))
+
+		def move_down(self, param):
+			self.move_cursor(y_offset = to_int(param, 1))
+
+		def move_left(self, param):
+			self.move_cursor(x_offset = -to_int(param, 1))
+
+		def move_right(self, param):
+			self.move_cursor(x_offset = to_int(param, 1))
+
+		def next_line(self, param):
+			sbinfo = self.screen_buffer_info()
+			self.move_cursor(
+				x_offset = -sbinfo.CursorPosition.X,
+				y_offset = to_int(param, 1)
+			)
+
+		def prev_line(self, param):
+			sbinfo = self.screen_buffer_info()
+			self.move_cursor(
+				x_offset = -sbinfo.CursorPosition.X,
+				y_offset = -to_int(param, 1)
+			)
+
+		def rgb2bgr(self, c):
+			return ((c&1) << 2) | (c&2) | ((c&4)>>2)
+
+		def set_color(self, param):
+			cols = param.split(';')
+			sbinfo = self.screen_buffer_info()
+			attr = sbinfo.Attributes
+			for c in cols:
+				c = to_int(c, 0)
+				if 29 < c < 38: # fgcolor
+					attr = (attr & 0xfff0) | self.rgb2bgr(c - 30)
+				elif 39 < c < 48: # bgcolor
+					attr = (attr & 0xff0f) | (self.rgb2bgr(c - 40) << 4)
+				elif c == 0: # reset
+					attr = self._orig_sbinfo.Attributes
+				elif c == 1: # strong
+					attr |= 0x08
+				elif c == 4: # blink not available -> bg intensity
+					attr |= 0x80
+				elif c == 7: # negative
+					attr = (attr & 0xff88) | ((attr & 0x70) >> 4) | ((attr & 0x07) << 4)
+
+			windll.kernel32.SetConsoleTextAttribute(self.hconsole, attr)
+
+		def show_cursor(self,param):
+			self._csinfo.bVisible = 1
+			windll.kernel32.SetConsoleCursorInfo(self.hconsole, byref(self._csinfo))
+
+		def hide_cursor(self,param):
+			self._csinfo.bVisible = 0
+			windll.kernel32.SetConsoleCursorInfo(self.hconsole, byref(self._csinfo))
+
+		ansi_command_table = {
+			'A': move_up,
+			'B': move_down,
+			'C': move_right,
+			'D': move_left,
+			'E': next_line,
+			'F': prev_line,
+			'G': set_column,
+			'H': set_cursor,
+			'f': set_cursor,
+			'J': clear_screen,
+			'K': clear_line,
+			'h': show_cursor,
+			'l': hide_cursor,
+			'm': set_color,
+			's': push_cursor,
+			'u': pop_cursor,
+		}
+		# Match either the escape sequence or text not containing escape sequence
+		ansi_tokens = re.compile('(?:\x1b\[([0-9?;]*)([a-zA-Z])|([^\x1b]+))')
+		def write(self, text):
+			try:
+				wlock.acquire()
+				if self._isatty:
+					for param, cmd, txt in self.ansi_tokens.findall(text):
+						if cmd:
+							cmd_func = self.ansi_command_table.get(cmd)
+							if cmd_func:
+								cmd_func(self, param)
+						else:
+							self.writeconsole(txt)
+				else:
+					# no support for colors in the console, just output the text:
+					# eclipse or msys may be able to interpret the escape sequences
+					self.stream.write(text)
+			finally:
+				wlock.release()
+
+		def writeconsole(self, txt):
+			chars_written = c_ulong()
+			writeconsole = windll.kernel32.WriteConsoleA
+			if isinstance(txt, _type):
+				writeconsole = windll.kernel32.WriteConsoleW
+
+			# MSDN says that there is a shared buffer of 64 KB for the console
+			# writes. Attempt to not get ERROR_NOT_ENOUGH_MEMORY, see waf issue #746
+			done = 0
+			todo = len(txt)
+			chunk = 32<<10
+			while todo != 0:
+				doing = min(chunk, todo)
+				buf = txt[done:done+doing]
+				r = writeconsole(self.hconsole, buf, doing, byref(chars_written), None)
+				if r == 0:
+					chunk >>= 1
+					continue
+				done += doing
+				todo -= doing
+
+
+		def fileno(self):
+			return self.stream.fileno()
+
+		def flush(self):
+			pass
+
+		def isatty(self):
+			return self._isatty
+
+	if sys.stdout.isatty() or sys.stderr.isatty():
+		handle = sys.stdout.isatty() and STD_OUTPUT_HANDLE or STD_ERROR_HANDLE
+		console = windll.kernel32.GetStdHandle(handle)
+		sbinfo = CONSOLE_SCREEN_BUFFER_INFO()
+		def get_term_cols():
+			windll.kernel32.GetConsoleScreenBufferInfo(console, byref(sbinfo))
+			# Issue 1401 - the progress bar cannot reach the last character
+			return sbinfo.Size.X - 1
+
+# just try and see
+try:
+	import struct, fcntl, termios
+except ImportError:
+	pass
+else:
+	if (sys.stdout.isatty() or sys.stderr.isatty()) and os.environ.get('TERM', '') not in ('dumb', 'emacs'):
+		FD = sys.stdout.isatty() and sys.stdout.fileno() or sys.stderr.fileno()
+		def fun():
+			return struct.unpack("HHHH", fcntl.ioctl(FD, termios.TIOCGWINSZ, struct.pack("HHHH", 0, 0, 0, 0)))[1]
+		try:
+			fun()
+		except Exception as e:
+			pass
+		else:
+			get_term_cols = fun
+