Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/click/_termui_impl.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
parents d30785e31577
children
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1 # -*- coding: utf-8 -*-
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2 """
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3 This module contains implementations for the termui module. To keep the
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4 import time of Click down, some infrequently used functionality is
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5 placed in this module and only imported as needed.
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6 """
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7 import contextlib
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8 import math
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9 import os
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10 import sys
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11 import time
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12
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13 from ._compat import _default_text_stdout
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14 from ._compat import CYGWIN
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15 from ._compat import get_best_encoding
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16 from ._compat import int_types
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17 from ._compat import isatty
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18 from ._compat import open_stream
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19 from ._compat import range_type
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20 from ._compat import strip_ansi
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21 from ._compat import term_len
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22 from ._compat import WIN
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23 from .exceptions import ClickException
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24 from .utils import echo
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25
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26 if os.name == "nt":
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27 BEFORE_BAR = "\r"
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28 AFTER_BAR = "\n"
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29 else:
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30 BEFORE_BAR = "\r\033[?25l"
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31 AFTER_BAR = "\033[?25h\n"
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32
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33
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34 def _length_hint(obj):
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35 """Returns the length hint of an object."""
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36 try:
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37 return len(obj)
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38 except (AttributeError, TypeError):
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39 try:
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40 get_hint = type(obj).__length_hint__
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41 except AttributeError:
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42 return None
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43 try:
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44 hint = get_hint(obj)
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45 except TypeError:
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46 return None
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47 if hint is NotImplemented or not isinstance(hint, int_types) or hint < 0:
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48 return None
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49 return hint
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50
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51
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52 class ProgressBar(object):
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53 def __init__(
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54 self,
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55 iterable,
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56 length=None,
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57 fill_char="#",
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58 empty_char=" ",
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59 bar_template="%(bar)s",
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60 info_sep=" ",
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61 show_eta=True,
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62 show_percent=None,
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63 show_pos=False,
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64 item_show_func=None,
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65 label=None,
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66 file=None,
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67 color=None,
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68 width=30,
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69 ):
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70 self.fill_char = fill_char
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71 self.empty_char = empty_char
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72 self.bar_template = bar_template
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73 self.info_sep = info_sep
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74 self.show_eta = show_eta
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75 self.show_percent = show_percent
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76 self.show_pos = show_pos
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77 self.item_show_func = item_show_func
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78 self.label = label or ""
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79 if file is None:
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80 file = _default_text_stdout()
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81 self.file = file
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82 self.color = color
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83 self.width = width
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84 self.autowidth = width == 0
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85
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86 if length is None:
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87 length = _length_hint(iterable)
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88 if iterable is None:
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89 if length is None:
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90 raise TypeError("iterable or length is required")
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91 iterable = range_type(length)
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92 self.iter = iter(iterable)
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93 self.length = length
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94 self.length_known = length is not None
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95 self.pos = 0
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96 self.avg = []
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97 self.start = self.last_eta = time.time()
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98 self.eta_known = False
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99 self.finished = False
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100 self.max_width = None
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101 self.entered = False
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102 self.current_item = None
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103 self.is_hidden = not isatty(self.file)
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104 self._last_line = None
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105 self.short_limit = 0.5
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106
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107 def __enter__(self):
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108 self.entered = True
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109 self.render_progress()
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110 return self
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111
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112 def __exit__(self, exc_type, exc_value, tb):
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113 self.render_finish()
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114
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115 def __iter__(self):
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116 if not self.entered:
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117 raise RuntimeError("You need to use progress bars in a with block.")
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118 self.render_progress()
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119 return self.generator()
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120
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121 def __next__(self):
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122 # Iteration is defined in terms of a generator function,
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123 # returned by iter(self); use that to define next(). This works
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124 # because `self.iter` is an iterable consumed by that generator,
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125 # so it is re-entry safe. Calling `next(self.generator())`
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126 # twice works and does "what you want".
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127 return next(iter(self))
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128
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129 # Python 2 compat
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130 next = __next__
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131
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132 def is_fast(self):
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133 return time.time() - self.start <= self.short_limit
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134
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135 def render_finish(self):
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136 if self.is_hidden or self.is_fast():
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137 return
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138 self.file.write(AFTER_BAR)
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139 self.file.flush()
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140
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141 @property
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142 def pct(self):
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143 if self.finished:
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144 return 1.0
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145 return min(self.pos / (float(self.length) or 1), 1.0)
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146
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147 @property
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148 def time_per_iteration(self):
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149 if not self.avg:
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150 return 0.0
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151 return sum(self.avg) / float(len(self.avg))
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152
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153 @property
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154 def eta(self):
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155 if self.length_known and not self.finished:
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156 return self.time_per_iteration * (self.length - self.pos)
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157 return 0.0
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158
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159 def format_eta(self):
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160 if self.eta_known:
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161 t = int(self.eta)
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162 seconds = t % 60
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163 t //= 60
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164 minutes = t % 60
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165 t //= 60
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166 hours = t % 24
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167 t //= 24
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168 if t > 0:
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169 return "{}d {:02}:{:02}:{:02}".format(t, hours, minutes, seconds)
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170 else:
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171 return "{:02}:{:02}:{:02}".format(hours, minutes, seconds)
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172 return ""
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173
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174 def format_pos(self):
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175 pos = str(self.pos)
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176 if self.length_known:
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177 pos += "/{}".format(self.length)
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178 return pos
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179
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180 def format_pct(self):
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181 return "{: 4}%".format(int(self.pct * 100))[1:]
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182
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183 def format_bar(self):
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184 if self.length_known:
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185 bar_length = int(self.pct * self.width)
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186 bar = self.fill_char * bar_length
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187 bar += self.empty_char * (self.width - bar_length)
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188 elif self.finished:
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189 bar = self.fill_char * self.width
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190 else:
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191 bar = list(self.empty_char * (self.width or 1))
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192 if self.time_per_iteration != 0:
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193 bar[
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194 int(
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195 (math.cos(self.pos * self.time_per_iteration) / 2.0 + 0.5)
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196 * self.width
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197 )
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198 ] = self.fill_char
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199 bar = "".join(bar)
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200 return bar
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201
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202 def format_progress_line(self):
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203 show_percent = self.show_percent
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204
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205 info_bits = []
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206 if self.length_known and show_percent is None:
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207 show_percent = not self.show_pos
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208
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209 if self.show_pos:
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210 info_bits.append(self.format_pos())
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211 if show_percent:
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212 info_bits.append(self.format_pct())
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213 if self.show_eta and self.eta_known and not self.finished:
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214 info_bits.append(self.format_eta())
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215 if self.item_show_func is not None:
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216 item_info = self.item_show_func(self.current_item)
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217 if item_info is not None:
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218 info_bits.append(item_info)
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219
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220 return (
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221 self.bar_template
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222 % {
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223 "label": self.label,
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224 "bar": self.format_bar(),
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225 "info": self.info_sep.join(info_bits),
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226 }
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227 ).rstrip()
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228
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229 def render_progress(self):
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230 from .termui import get_terminal_size
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231
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232 if self.is_hidden:
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233 return
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234
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235 buf = []
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236 # Update width in case the terminal has been resized
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237 if self.autowidth:
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238 old_width = self.width
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239 self.width = 0
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240 clutter_length = term_len(self.format_progress_line())
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241 new_width = max(0, get_terminal_size()[0] - clutter_length)
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242 if new_width < old_width:
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243 buf.append(BEFORE_BAR)
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244 buf.append(" " * self.max_width)
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245 self.max_width = new_width
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246 self.width = new_width
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247
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248 clear_width = self.width
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249 if self.max_width is not None:
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250 clear_width = self.max_width
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251
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252 buf.append(BEFORE_BAR)
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253 line = self.format_progress_line()
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254 line_len = term_len(line)
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255 if self.max_width is None or self.max_width < line_len:
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256 self.max_width = line_len
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257
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258 buf.append(line)
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259 buf.append(" " * (clear_width - line_len))
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260 line = "".join(buf)
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261 # Render the line only if it changed.
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262
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263 if line != self._last_line and not self.is_fast():
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264 self._last_line = line
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265 echo(line, file=self.file, color=self.color, nl=False)
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266 self.file.flush()
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267
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268 def make_step(self, n_steps):
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269 self.pos += n_steps
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270 if self.length_known and self.pos >= self.length:
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271 self.finished = True
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272
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273 if (time.time() - self.last_eta) < 1.0:
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274 return
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275
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276 self.last_eta = time.time()
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277
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278 # self.avg is a rolling list of length <= 7 of steps where steps are
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279 # defined as time elapsed divided by the total progress through
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280 # self.length.
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281 if self.pos:
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282 step = (time.time() - self.start) / self.pos
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283 else:
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284 step = time.time() - self.start
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285
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286 self.avg = self.avg[-6:] + [step]
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287
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288 self.eta_known = self.length_known
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289
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290 def update(self, n_steps):
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291 self.make_step(n_steps)
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292 self.render_progress()
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293
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294 def finish(self):
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295 self.eta_known = 0
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296 self.current_item = None
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297 self.finished = True
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298
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299 def generator(self):
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300 """Return a generator which yields the items added to the bar
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301 during construction, and updates the progress bar *after* the
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302 yielded block returns.
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303 """
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304 # WARNING: the iterator interface for `ProgressBar` relies on
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305 # this and only works because this is a simple generator which
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306 # doesn't create or manage additional state. If this function
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307 # changes, the impact should be evaluated both against
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308 # `iter(bar)` and `next(bar)`. `next()` in particular may call
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309 # `self.generator()` repeatedly, and this must remain safe in
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310 # order for that interface to work.
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311 if not self.entered:
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312 raise RuntimeError("You need to use progress bars in a with block.")
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313
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314 if self.is_hidden:
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315 for rv in self.iter:
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316 yield rv
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317 else:
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318 for rv in self.iter:
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319 self.current_item = rv
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320 yield rv
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321 self.update(1)
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322 self.finish()
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323 self.render_progress()
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324
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325
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326 def pager(generator, color=None):
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327 """Decide what method to use for paging through text."""
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328 stdout = _default_text_stdout()
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329 if not isatty(sys.stdin) or not isatty(stdout):
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330 return _nullpager(stdout, generator, color)
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331 pager_cmd = (os.environ.get("PAGER", None) or "").strip()
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332 if pager_cmd:
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333 if WIN:
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334 return _tempfilepager(generator, pager_cmd, color)
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335 return _pipepager(generator, pager_cmd, color)
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336 if os.environ.get("TERM") in ("dumb", "emacs"):
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337 return _nullpager(stdout, generator, color)
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338 if WIN or sys.platform.startswith("os2"):
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339 return _tempfilepager(generator, "more <", color)
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340 if hasattr(os, "system") and os.system("(less) 2>/dev/null") == 0:
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341 return _pipepager(generator, "less", color)
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342
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343 import tempfile
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344
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345 fd, filename = tempfile.mkstemp()
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346 os.close(fd)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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347 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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348 if hasattr(os, "system") and os.system('more "{}"'.format(filename)) == 0:
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349 return _pipepager(generator, "more", color)
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350 return _nullpager(stdout, generator, color)
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351 finally:
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352 os.unlink(filename)
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353
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354
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355 def _pipepager(generator, cmd, color):
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356 """Page through text by feeding it to another program. Invoking a
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357 pager through this might support colors.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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358 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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359 import subprocess
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360
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361 env = dict(os.environ)
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362
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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363 # If we're piping to less we might support colors under the
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364 # condition that
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365 cmd_detail = cmd.rsplit("/", 1)[-1].split()
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366 if color is None and cmd_detail[0] == "less":
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367 less_flags = "{}{}".format(os.environ.get("LESS", ""), " ".join(cmd_detail[1:]))
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368 if not less_flags:
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369 env["LESS"] = "-R"
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370 color = True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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371 elif "r" in less_flags or "R" in less_flags:
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372 color = True
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373
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374 c = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, env=env)
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375 encoding = get_best_encoding(c.stdin)
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376 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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377 for text in generator:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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378 if not color:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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379 text = strip_ansi(text)
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380
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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381 c.stdin.write(text.encode(encoding, "replace"))
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382 except (IOError, KeyboardInterrupt):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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383 pass
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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384 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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385 c.stdin.close()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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386
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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387 # Less doesn't respect ^C, but catches it for its own UI purposes (aborting
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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388 # search or other commands inside less).
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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389 #
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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390 # That means when the user hits ^C, the parent process (click) terminates,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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391 # but less is still alive, paging the output and messing up the terminal.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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392 #
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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393 # If the user wants to make the pager exit on ^C, they should set
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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394 # `LESS='-K'`. It's not our decision to make.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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395 while True:
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parents:
diff changeset
396 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
397 c.wait()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
398 except KeyboardInterrupt:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
399 pass
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
400 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
401 break
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
402
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
403
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
404 def _tempfilepager(generator, cmd, color):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
405 """Page through text by invoking a program on a temporary file."""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
406 import tempfile
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
407
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
408 filename = tempfile.mktemp()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
409 # TODO: This never terminates if the passed generator never terminates.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
410 text = "".join(generator)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
411 if not color:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
412 text = strip_ansi(text)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
413 encoding = get_best_encoding(sys.stdout)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
414 with open_stream(filename, "wb")[0] as f:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
415 f.write(text.encode(encoding))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
416 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
417 os.system('{} "{}"'.format(cmd, filename))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
418 finally:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
419 os.unlink(filename)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
420
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
421
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
422 def _nullpager(stream, generator, color):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
423 """Simply print unformatted text. This is the ultimate fallback."""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
424 for text in generator:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
425 if not color:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
426 text = strip_ansi(text)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
427 stream.write(text)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
428
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
429
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
430 class Editor(object):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
431 def __init__(self, editor=None, env=None, require_save=True, extension=".txt"):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
432 self.editor = editor
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
433 self.env = env
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
434 self.require_save = require_save
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
435 self.extension = extension
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
436
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
437 def get_editor(self):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
438 if self.editor is not None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
439 return self.editor
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
440 for key in "VISUAL", "EDITOR":
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
441 rv = os.environ.get(key)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
442 if rv:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
443 return rv
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
444 if WIN:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
445 return "notepad"
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
446 for editor in "sensible-editor", "vim", "nano":
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
447 if os.system("which {} >/dev/null 2>&1".format(editor)) == 0:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
448 return editor
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
449 return "vi"
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
450
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
451 def edit_file(self, filename):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
452 import subprocess
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
453
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
454 editor = self.get_editor()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
455 if self.env:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
456 environ = os.environ.copy()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
457 environ.update(self.env)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
458 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
459 environ = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
460 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
461 c = subprocess.Popen(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
462 '{} "{}"'.format(editor, filename), env=environ, shell=True,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
463 )
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
464 exit_code = c.wait()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
465 if exit_code != 0:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
466 raise ClickException("{}: Editing failed!".format(editor))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
467 except OSError as e:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
468 raise ClickException("{}: Editing failed: {}".format(editor, e))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
469
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
470 def edit(self, text):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
471 import tempfile
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
472
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
473 text = text or ""
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
474 if text and not text.endswith("\n"):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
475 text += "\n"
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
476
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
477 fd, name = tempfile.mkstemp(prefix="editor-", suffix=self.extension)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
478 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
479 if WIN:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
480 encoding = "utf-8-sig"
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
481 text = text.replace("\n", "\r\n")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
482 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
483 encoding = "utf-8"
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
484 text = text.encode(encoding)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
485
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
486 f = os.fdopen(fd, "wb")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
487 f.write(text)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
488 f.close()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
489 timestamp = os.path.getmtime(name)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
490
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
491 self.edit_file(name)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
492
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
493 if self.require_save and os.path.getmtime(name) == timestamp:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
494 return None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
495
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
496 f = open(name, "rb")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
497 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
498 rv = f.read()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
499 finally:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
500 f.close()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
501 return rv.decode("utf-8-sig").replace("\r\n", "\n")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
502 finally:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
503 os.unlink(name)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
504
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
505
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
506 def open_url(url, wait=False, locate=False):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
507 import subprocess
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
508
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
509 def _unquote_file(url):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
510 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
511 import urllib
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
512 except ImportError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
513 import urllib
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
514 if url.startswith("file://"):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
515 url = urllib.unquote(url[7:])
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
516 return url
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
517
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
518 if sys.platform == "darwin":
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
519 args = ["open"]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
520 if wait:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
521 args.append("-W")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
522 if locate:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
523 args.append("-R")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
524 args.append(_unquote_file(url))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
525 null = open("/dev/null", "w")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
526 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
527 return subprocess.Popen(args, stderr=null).wait()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
528 finally:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
529 null.close()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
530 elif WIN:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
531 if locate:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532 url = _unquote_file(url)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 args = 'explorer /select,"{}"'.format(_unquote_file(url.replace('"', "")))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
534 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535 args = 'start {} "" "{}"'.format(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 "/WAIT" if wait else "", url.replace('"', "")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537 )
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538 return os.system(args)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
539 elif CYGWIN:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540 if locate:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
541 url = _unquote_file(url)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
542 args = 'cygstart "{}"'.format(os.path.dirname(url).replace('"', ""))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
543 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
544 args = 'cygstart {} "{}"'.format("-w" if wait else "", url.replace('"', ""))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
545 return os.system(args)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
546
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
547 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
548 if locate:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
549 url = os.path.dirname(_unquote_file(url)) or "."
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
550 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
551 url = _unquote_file(url)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
552 c = subprocess.Popen(["xdg-open", url])
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
553 if wait:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
554 return c.wait()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
555 return 0
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
556 except OSError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
557 if url.startswith(("http://", "https://")) and not locate and not wait:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
558 import webbrowser
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
559
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
560 webbrowser.open(url)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
561 return 0
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
562 return 1
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
563
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
564
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
565 def _translate_ch_to_exc(ch):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
566 if ch == u"\x03":
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
567 raise KeyboardInterrupt()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
568 if ch == u"\x04" and not WIN: # Unix-like, Ctrl+D
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
569 raise EOFError()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
570 if ch == u"\x1a" and WIN: # Windows, Ctrl+Z
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
571 raise EOFError()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
572
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
573
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
574 if WIN:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
575 import msvcrt
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
576
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
577 @contextlib.contextmanager
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
578 def raw_terminal():
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
579 yield
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
580
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
581 def getchar(echo):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
582 # The function `getch` will return a bytes object corresponding to
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
583 # the pressed character. Since Windows 10 build 1803, it will also
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
584 # return \x00 when called a second time after pressing a regular key.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
585 #
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
586 # `getwch` does not share this probably-bugged behavior. Moreover, it
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
587 # returns a Unicode object by default, which is what we want.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
588 #
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
589 # Either of these functions will return \x00 or \xe0 to indicate
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
590 # a special key, and you need to call the same function again to get
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
591 # the "rest" of the code. The fun part is that \u00e0 is
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
592 # "latin small letter a with grave", so if you type that on a French
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
593 # keyboard, you _also_ get a \xe0.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
594 # E.g., consider the Up arrow. This returns \xe0 and then \x48. The
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
595 # resulting Unicode string reads as "a with grave" + "capital H".
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
596 # This is indistinguishable from when the user actually types
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
597 # "a with grave" and then "capital H".
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
598 #
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
599 # When \xe0 is returned, we assume it's part of a special-key sequence
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
600 # and call `getwch` again, but that means that when the user types
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
601 # the \u00e0 character, `getchar` doesn't return until a second
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
602 # character is typed.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
603 # The alternative is returning immediately, but that would mess up
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
604 # cross-platform handling of arrow keys and others that start with
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
605 # \xe0. Another option is using `getch`, but then we can't reliably
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
606 # read non-ASCII characters, because return values of `getch` are
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 # limited to the current 8-bit codepage.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
608 #
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
609 # Anyway, Click doesn't claim to do this Right(tm), and using `getwch`
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
610 # is doing the right thing in more situations than with `getch`.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
611 if echo:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
612 func = msvcrt.getwche
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
613 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
614 func = msvcrt.getwch
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
615
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
616 rv = func()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
617 if rv in (u"\x00", u"\xe0"):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
618 # \x00 and \xe0 are control characters that indicate special key,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
619 # see above.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
620 rv += func()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
621 _translate_ch_to_exc(rv)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
622 return rv
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
623
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
624
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
625 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
626 import tty
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
627 import termios
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
628
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
629 @contextlib.contextmanager
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
630 def raw_terminal():
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
631 if not isatty(sys.stdin):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
632 f = open("/dev/tty")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
633 fd = f.fileno()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
634 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
635 fd = sys.stdin.fileno()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
636 f = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
637 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
638 old_settings = termios.tcgetattr(fd)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
639 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
640 tty.setraw(fd)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
641 yield fd
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642 finally:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
643 termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644 sys.stdout.flush()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
645 if f is not None:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
646 f.close()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
647 except termios.error:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
648 pass
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
649
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
650 def getchar(echo):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
651 with raw_terminal() as fd:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
652 ch = os.read(fd, 32)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
653 ch = ch.decode(get_best_encoding(sys.stdin), "replace")
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
654 if echo and isatty(sys.stdout):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
655 sys.stdout.write(ch)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
656 _translate_ch_to_exc(ch)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
657 return ch