Mercurial > hg
annotate hgext/pager.py @ 20772:03774a2b6991 stable
commit: propagate --secret option to subrepos (issue4182)
Before this patch, `hg commit --secret` was not getting propagated
correctly, and subrepos were not getting the commit in the secret
phase. The problem is that subrepos get their ui from the base repo's
baseui object and ignore the ui object passed on to them. This sets
and restores both ui objects with the appropriate option.
author | Jordi Gutiérrez Hermoso <jordigh@octave.org> |
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date | Mon, 17 Mar 2014 14:57:13 -0400 |
parents | 7d99bff0f77c |
children | 49f2d5644f04 |
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 To ignore global commands like :hg:`version` or :hg:`help`, you have |
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43 to specify them in your user configuration file. |
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44 |
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45 The --pager=... option can also be used to control when the pager is |
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46 used. Use a boolean value like yes, no, on, off, or use auto for |
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47 normal behavior. |
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48 ''' |
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49 |
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50 import atexit, sys, os, signal, subprocess, errno, shlex |
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51 from mercurial import commands, dispatch, util, extensions, cmdutil |
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52 from mercurial.i18n import _ |
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53 |
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54 testedwith = 'internal' |
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55 |
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56 def _pagerfork(ui, p): |
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57 if not util.safehasattr(os, 'fork'): |
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58 sys.stdout = util.popen(p, 'wb') |
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59 if ui._isatty(sys.stderr): |
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60 sys.stderr = sys.stdout |
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61 return |
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62 fdin, fdout = os.pipe() |
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63 pid = os.fork() |
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64 if pid == 0: |
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65 os.close(fdin) |
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66 os.dup2(fdout, sys.stdout.fileno()) |
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67 if ui._isatty(sys.stderr): |
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68 os.dup2(fdout, sys.stderr.fileno()) |
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69 os.close(fdout) |
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70 return |
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71 os.dup2(fdin, sys.stdin.fileno()) |
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72 os.close(fdin) |
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73 os.close(fdout) |
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74 try: |
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75 os.execvp('/bin/sh', ['/bin/sh', '-c', p]) |
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76 except OSError, e: |
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77 if e.errno == errno.ENOENT: |
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78 # no /bin/sh, try executing the pager directly |
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79 args = shlex.split(p) |
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80 os.execvp(args[0], args) |
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81 else: |
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82 raise |
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83 |
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84 def _pagersubprocess(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 stdout = os.dup(sys.stdout.fileno()) |
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90 stderr = os.dup(sys.stderr.fileno()) |
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91 os.dup2(pager.stdin.fileno(), sys.stdout.fileno()) |
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92 if ui._isatty(sys.stderr): |
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93 os.dup2(pager.stdin.fileno(), sys.stderr.fileno()) |
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94 |
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95 @atexit.register |
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96 def killpager(): |
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97 if util.safehasattr(signal, "SIGINT"): |
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98 signal.signal(signal.SIGINT, signal.SIG_IGN) |
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99 pager.stdin.close() |
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100 os.dup2(stdout, sys.stdout.fileno()) |
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101 os.dup2(stderr, sys.stderr.fileno()) |
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102 pager.wait() |
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103 |
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104 def _runpager(ui, p): |
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105 # The subprocess module shipped with Python <= 2.4 is buggy (issue3533). |
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106 # The compat version is buggy on Windows (issue3225), but has been shipping |
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107 # with hg for a long time. Preserve existing functionality. |
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108 if sys.version_info >= (2, 5): |
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109 _pagersubprocess(ui, p) |
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110 else: |
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111 _pagerfork(ui, p) |
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112 |
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113 def uisetup(ui): |
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114 if '--debugger' in sys.argv or not ui.formatted(): |
11414 | 115 return |
116 | |
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117 def pagecmd(orig, ui, options, cmd, cmdfunc): |
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118 p = ui.config("pager", "pager", os.environ.get("PAGER")) |
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119 |
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120 if p: |
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121 attend = ui.configlist('pager', 'attend', attended) |
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122 auto = options['pager'] == 'auto' |
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123 always = util.parsebool(options['pager']) |
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124 |
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125 cmds, _ = cmdutil.findcmd(cmd, commands.table) |
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126 |
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127 ignore = ui.configlist('pager', 'ignore') |
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128 for cmd in cmds: |
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129 if (always or auto and |
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130 (cmd in attend or |
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131 (cmd not in ignore and not attend))): |
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132 ui.setconfig('ui', 'formatted', ui.formatted()) |
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133 ui.setconfig('ui', 'interactive', False) |
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134 if util.safehasattr(signal, "SIGPIPE"): |
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135 signal.signal(signal.SIGPIPE, signal.SIG_DFL) |
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136 _runpager(ui, p) |
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137 break |
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138 return orig(ui, options, cmd, cmdfunc) |
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139 |
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140 extensions.wrapfunction(dispatch, '_runcommand', pagecmd) |
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141 |
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142 def extsetup(ui): |
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143 commands.globalopts.append( |
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144 ('', 'pager', 'auto', |
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145 _("when to paginate (boolean, always, auto, or never)"), |
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146 _('TYPE'))) |
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147 |
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148 attended = ['annotate', 'cat', 'diff', 'export', 'glog', 'log', 'qdiff'] |