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1#!/usr/bin/env python2.7
2
3# Copyright 2014, VIXL authors
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions are met:
8#
9#   * Redistributions of source code must retain the above copyright notice,
10#     this list of conditions and the following disclaimer.
11#   * Redistributions in binary form must reproduce the above copyright notice,
12#     this list of conditions and the following disclaimer in the documentation
13#     and/or other materials provided with the distribution.
14#   * Neither the name of ARM Limited nor the names of its contributors may be
15#     used to endorse or promote products derived from this software without
16#     specific prior written permission.
17#
18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
19# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
22# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
25# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29
30import sys
31import time
32import multiprocessing
33
34output_redirected_to_file = not sys.stdout.isatty()
35
36def ColourCode(colour):
37  return '' if output_redirected_to_file else colour
38
39COLOUR_GREEN =  ColourCode("\x1b[0;32m")
40COLOUR_ORANGE = ColourCode("\x1b[0;33m")
41COLOUR_RED =    ColourCode("\x1b[0;31m")
42NO_COLOUR =     ColourCode("\x1b[0m")
43
44# Indicates the 'type' of the last printed line.
45LINE_TYPE_NONE = 0
46# Any type below this one is overwritable.
47LINE_TYPE_OVERWRITABLE = 1
48LINE_TYPE_PROGRESS = 2
49LINE_TYPE_LINTER = 3
50
51__print_lock__ = multiprocessing.Lock()
52__last_overwritable_line_length__ = multiprocessing.Value('i', 0)
53__last_line_type__ = multiprocessing.Value('i', LINE_TYPE_NONE)
54
55
56def EnsureNewLine():
57  if __last_line_type__.value >= LINE_TYPE_OVERWRITABLE:
58    sys.stdout.write('\n')
59    __last_line_type__.value = LINE_TYPE_NONE
60
61
62def PrintInternal(string):
63  sys.stdout.write(string)
64  spaces = __last_overwritable_line_length__.value - len(string)
65  if spaces > 0:
66    sys.stdout.write(' ' * spaces)
67
68
69def Print(string, has_lock = False):
70  if not has_lock: __print_lock__.acquire()
71
72  if __last_line_type__.value != LINE_TYPE_NONE:
73    sys.stdout.write('\n')
74
75  PrintInternal(string)
76  sys.stdout.write('\n')
77  __last_overwritable_line_length__.value = 0
78  __last_line_type__.value = LINE_TYPE_NONE
79
80  if not has_lock: __print_lock__.release()
81
82
83# Lines of a specific type only overwrite and can only be overwritten by lines
84# of the same type.
85def PrintOverwritableLine(string, has_lock = False, type = LINE_TYPE_NONE):
86  if not has_lock: __print_lock__.acquire()
87
88  if (__last_line_type__.value != type) and \
89      (__last_line_type__.value >= LINE_TYPE_OVERWRITABLE):
90    sys.stdout.write('\n')
91
92  PrintInternal(string)
93  if not output_redirected_to_file:
94    sys.stdout.write('\r')
95  else:
96    sys.stdout.write('\n')
97  sys.stdout.flush()
98
99  __last_overwritable_line_length__.value = len(string)
100  __last_line_type__.value = type
101
102  if not has_lock: __print_lock__.release()
103
104
105# Display the run progress:
106# prefix [time| progress|+ passed|- failed]  name
107def UpdateProgress(start_time, passed, failed, count, name, prefix = '',
108                   prevent_next_overwrite = False, has_lock = False):
109  minutes, seconds = divmod(time.time() - start_time, 60)
110  progress = float(passed + failed) / count * 100
111  passed_colour = COLOUR_GREEN if passed != 0 else ''
112  failed_colour = COLOUR_RED if failed != 0 else ''
113  indicator = '[%02d:%02d| %3d%%|'
114  indicator += passed_colour + '+ %d' + NO_COLOUR + '|'
115  indicator += failed_colour + '- %d' + NO_COLOUR + ']'
116
117  progress_string = prefix
118  progress_string += indicator % (minutes, seconds, progress, passed, failed)
119  progress_string += '  ' + name
120
121  PrintOverwritableLine(progress_string, type = LINE_TYPE_PROGRESS,
122                        has_lock = has_lock)
123  if prevent_next_overwrite:
124    sys.stdout.write('\n')
125    __last_line_type__.value = LINE_TYPE_NONE
126