Mercurial > hg
annotate hgext/pager.py @ 29484:53b7fc7cc2bb
sslutil: don't attempt to find default CA certs file when told not to
Before, devel.disableloaddefaultcerts only impacted the loading of
default certs via SSLContext. After this patch, the config option also
prevents sslutil._defaultcacerts() from being called.
This config option is meant to be used by tests to force no CA certs
to be loaded. Future patches will enable _defaultcacerts() to have
success more often. Without this change we can't reliably test the
failure to load CA certs. (This patch also likely fixes test failures
on some OS X configurations.)
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Fri, 01 Jul 2016 19:17:45 -0700 |
parents | a0939666b836 |
children | d5883fd055c6 |
rev | line source |
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1 # pager.py - display output using a pager |
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2 # |
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3 # Copyright 2008 David Soria Parra <dsp@php.net> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 # |
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8 # To load the extension, add it to your configuration file: |
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9 # |
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10 # [extension] |
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11 # pager = |
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12 # |
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13 # Run "hg help pager" to get info on configuration. |
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14 |
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15 '''browse command output with an external pager |
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16 |
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17 To set the pager that should be used, set the application variable:: |
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18 |
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19 [pager] |
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20 pager = less -FRX |
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21 |
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22 If no pager is set, the pager extensions uses the environment variable |
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23 $PAGER. If neither pager.pager, nor $PAGER is set, no pager is used. |
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24 |
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25 You can disable the pager for certain commands by adding them to the |
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26 pager.ignore list:: |
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27 |
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28 [pager] |
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29 ignore = version, help, update |
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30 |
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31 You can also enable the pager only for certain commands using |
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32 pager.attend. Below is the default list of commands to be paged:: |
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33 |
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34 [pager] |
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35 attend = annotate, cat, diff, export, glog, log, qdiff |
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36 |
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37 Setting pager.attend to an empty value will cause all commands to be |
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38 paged. |
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39 |
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40 If pager.attend is present, pager.ignore will be ignored. |
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41 |
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42 Lastly, you can enable and disable paging for individual commands with |
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43 the attend-<command> option. This setting takes precedence over |
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44 existing attend and ignore options and defaults:: |
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45 |
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46 [pager] |
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47 attend-cat = false |
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48 |
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49 To ignore global commands like :hg:`version` or :hg:`help`, you have |
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50 to specify them in your user configuration file. |
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51 |
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52 To control whether the pager is used at all for an individual command, |
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53 you can use --pager=<value>:: |
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54 |
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55 - use as needed: `auto`. |
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56 - require the pager: `yes` or `on`. |
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57 - suppress the pager: `no` or `off` (any unrecognized value |
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58 will also work). |
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59 |
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60 ''' |
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61 from __future__ import absolute_import |
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62 |
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63 import atexit |
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64 import os |
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65 import signal |
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66 import subprocess |
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67 import sys |
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68 |
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69 from mercurial.i18n import _ |
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70 from mercurial import ( |
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71 cmdutil, |
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72 commands, |
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73 dispatch, |
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74 extensions, |
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75 util, |
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76 ) |
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77 |
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78 # Note for extension authors: ONLY specify testedwith = 'internal' for |
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79 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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80 # be specifying the version(s) of Mercurial they are tested with, or |
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81 # leave the attribute unspecified. |
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82 testedwith = 'internal' |
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83 |
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84 def _runpager(ui, p): |
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85 pager = subprocess.Popen(p, shell=True, bufsize=-1, |
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86 close_fds=util.closefds, stdin=subprocess.PIPE, |
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87 stdout=sys.stdout, stderr=sys.stderr) |
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88 |
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89 # back up original file objects and descriptors |
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90 olduifout = ui.fout |
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91 oldstdout = sys.stdout |
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92 stdoutfd = os.dup(sys.stdout.fileno()) |
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93 stderrfd = os.dup(sys.stderr.fileno()) |
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94 |
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95 # create new line-buffered stdout so that output can show up immediately |
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96 ui.fout = sys.stdout = newstdout = os.fdopen(sys.stdout.fileno(), 'wb', 1) |
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97 os.dup2(pager.stdin.fileno(), sys.stdout.fileno()) |
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98 if ui._isatty(sys.stderr): |
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99 os.dup2(pager.stdin.fileno(), sys.stderr.fileno()) |
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100 |
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101 @atexit.register |
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102 def killpager(): |
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103 if util.safehasattr(signal, "SIGINT"): |
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104 signal.signal(signal.SIGINT, signal.SIG_IGN) |
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105 pager.stdin.close() |
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106 ui.fout = olduifout |
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107 sys.stdout = oldstdout |
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108 # close new stdout while it's associated with pager; otherwise stdout |
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109 # fd would be closed when newstdout is deleted |
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110 newstdout.close() |
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111 # restore original fds: stdout is open again |
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112 os.dup2(stdoutfd, sys.stdout.fileno()) |
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113 os.dup2(stderrfd, sys.stderr.fileno()) |
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114 pager.wait() |
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115 |
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116 def uisetup(ui): |
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117 if '--debugger' in sys.argv or not ui.formatted(): |
11414 | 118 return |
119 | |
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120 # chg has its own pager implementation |
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121 argv = sys.argv[:] |
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122 if 'chgunix' in dispatch._earlygetopt(['--cmdserver'], argv): |
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123 return |
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124 |
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125 def pagecmd(orig, ui, options, cmd, cmdfunc): |
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126 p = ui.config("pager", "pager", os.environ.get("PAGER")) |
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127 usepager = False |
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128 always = util.parsebool(options['pager']) |
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129 auto = options['pager'] == 'auto' |
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130 |
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131 if not p: |
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132 pass |
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133 elif always: |
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134 usepager = True |
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135 elif not auto: |
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136 usepager = False |
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137 else: |
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138 attend = ui.configlist('pager', 'attend', attended) |
21280 | 139 ignore = ui.configlist('pager', 'ignore') |
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140 cmds, _ = cmdutil.findcmd(cmd, commands.table) |
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141 |
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142 for cmd in cmds: |
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143 var = 'attend-%s' % cmd |
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144 if ui.config('pager', var): |
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145 usepager = ui.configbool('pager', var) |
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146 break |
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147 if (cmd in attend or |
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148 (cmd not in ignore and not attend)): |
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149 usepager = True |
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150 break |
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151 |
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152 setattr(ui, 'pageractive', usepager) |
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153 |
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154 if usepager: |
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155 ui.setconfig('ui', 'formatted', ui.formatted(), 'pager') |
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156 ui.setconfig('ui', 'interactive', False, 'pager') |
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157 if util.safehasattr(signal, "SIGPIPE"): |
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158 signal.signal(signal.SIGPIPE, signal.SIG_DFL) |
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159 _runpager(ui, p) |
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160 return orig(ui, options, cmd, cmdfunc) |
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161 |
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162 # Wrap dispatch._runcommand after color is loaded so color can see |
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163 # ui.pageractive. Otherwise, if we loaded first, color's wrapped |
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164 # dispatch._runcommand would run without having access to ui.pageractive. |
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165 def afterloaded(loaded): |
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166 extensions.wrapfunction(dispatch, '_runcommand', pagecmd) |
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167 extensions.afterloaded('color', afterloaded) |
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168 |
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169 def extsetup(ui): |
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170 commands.globalopts.append( |
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171 ('', 'pager', 'auto', |
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172 _("when to paginate (boolean, always, auto, or never)"), |
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173 _('TYPE'))) |
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174 |
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175 attended = ['annotate', 'cat', 'diff', 'export', 'glog', 'log', 'qdiff'] |