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annotate vim/bundle/lawrencium/plugin/lawrencium.vim @ 51:a6bc310e7015

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First version of lawrencium plugin.
author Ludovic Chabant <ludovic@chabant.com>
date Wed, 07 Dec 2011 23:32:39 -0800
parents
children 05fd225bd1a0
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51
a6bc310e7015 First version of lawrencium plugin.
Ludovic Chabant <ludovic@chabant.com>
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1 " lawrencium.vim - A Mercurial wrapper
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2 " Maintainer: Ludovic Chabant <http://ludovic.chabant.com>
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3 " Version: 0.1
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4
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5 if exists('g:loaded_lawrencium') || &cp
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6 " finish
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7 endif
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8 let g:loaded_lawrencium = 1
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9
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10 if !exists('g:lawrencium_hg_executable')
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11 let g:lawrencium_hg_executable = 'hg'
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12 endif
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13
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14 if !exists('g:lawrencium_trace')
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15 let g:lawrencium_trace = 0
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16 endif
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17
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18 " Utility {{{
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19
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20 function! s:stripslash(path)
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21 return fnamemodify(a:path, ':s?[\/]$??')
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22 endfunction
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23
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24 function! s:trace(message)
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25 if g:lawrencium_trace
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26 let l:message = "lawrencium: " . a:message
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27 endif
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28 endfunction
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29
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30 function! s:throw(message)
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31 let v:errmsg = "lawrencium: " . a:message
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32 throw v:errmsg
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33 endfunction
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34
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35 function! s:find_repo_root(path)
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36 let l:path = s:stripslash(a:path)
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37 while l:path != ""
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38 if isdirectory(l:path . '/.hg/store')
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39 return simplify(fnamemodify(l:path, ':p'))
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40 endif
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41 let l:path = fnamemodify(l:path, ':h')
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42 endwhile
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43 call s:throw("No Mercurial repository found above: " . a:path)
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44 endfunction
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45
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46 " }}}
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47
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48 " Mercurial Repository {{{
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49
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50 " Let's define a Mercurial repo 'class' using prototype-based object-oriented
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51 " programming.
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52 "
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53 " The prototype dictionary.
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54 let s:HgRepo = {}
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55
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56 " Constructor
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57 function! s:HgRepo.New(path) abort
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58 let l:newRepo = copy(self)
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59 let l:newRepo.root_dir = s:find_repo_root(a:path)
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60 call s:trace("Built new Mercurial repository object at : " . l:newRepo.root_dir)
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61 return l:newRepo
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62 endfunction
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63
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64 " Sets up the current buffer with local variables
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65 function! s:HgRepo.SetupBuffer() abort
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66 if exists('b:mercurial_dir') && (b:mercurial_dir =~# '/^\s*$/')
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67 unlet b:mercurial_dir
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68 endif
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69 if !exists('b:mercurial_dir')
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70 let b:mercurial_dir = self.root_dir
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71 endif
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72 if exists('b:mercurial_dir')
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73 call s:trace("Setting Mercurial directory to : " . expand(b:mercurial_dir))
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74 silent doautocmd User Lawrencium
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75 endif
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76 endfunction
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77
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78 " Gets a full path given a repo-relative path
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79 function! s:HgRepo.GetFullPath(path) abort
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80 let l:path = self.root_dir
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81 if a:path =~# '^/'
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82 let l:path = s:stripslash(self.root_dir)
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83 endif
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84 return l:path . a:path
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85 endfunction
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86
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87 " Runs a Mercurial command in the repo
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88 function! s:HgRepo.RunCommand(command, ...) abort
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89 let l:hg_command = g:lawrencium_hg_executable . ' --repository ' . shellescape(self.root_dir)
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90 let l:hg_command = l:hg_command . ' ' . a:command . ' ' . join(a:000, ' ')
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91 call s:trace("Running Mercurial command: " . l:hg_command)
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92 return system(l:hg_command)
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93 endfunction
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94
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95 " Repo cache map
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96 let s:buffer_repos = {}
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97
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98 " Get a cached repo
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99 function! s:hg_repo(...) abort
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100 " Use the given path, or the mercurial directory of the current buffer.
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101 if a:0 == 0
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102 if exists('b:mercurial_dir')
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103 let l:path = b:mercurial_dir
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104 else
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105 let l:path = s:find_repo_root(expand('%:p'))
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106 let b:mercurial_dir = l:path
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107 endif
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108 else
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109 let l:path = a:1
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110 endif
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111 " Find a cache repo instance, or make a new one.
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112 if has_key(s:buffer_repos, l:path)
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113 return get(s:buffer_repos, l:path)
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114 else
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115 let l:repo = s:HgRepo.New(l:path)
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116 let s:buffer_repos[l:path] = l:repo
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117 return l:repo
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118 endif
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119 endfunction
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120
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121 augroup lawrencium_detect
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122 autocmd!
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123 " autocmd BufNewFile,BufReadPost * call s:DetectMercurialRepository(expand('<amatch>:p'))
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124 " autocmd VimEnter * if expand('<amatch>')==''|call s:DetectMercurialRepository(getcwd())|endif
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125 augroup end
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126
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127 " }}}
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128
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129 " Commands {{{
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130
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131 let s:main_commands = []
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132
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133 function! s:AddMainCommand(command) abort
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134 let s:main_commands += [a:command]
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135 endfunction
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136
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137 function! s:DefineMainCommands()
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138 for command in s:main_commands
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139 execute 'command! -buffer '.command
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140 endfor
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141 endfunction
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142
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143 augroup lawrencium_main
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144 autocmd!
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145 autocmd User Lawrencium call s:DefineMainCommands()
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146 augroup end
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147
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148 " }}}
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149
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150 " HgExecute {{{
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151
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152 function! s:HgExecute(...) abort
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153 let l:repo = s:hg_repo()
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154 echo call(l:repo.RunCommand, a:000, l:repo)
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155 endfunction
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156
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157 call s:AddMainCommand("-nargs=* Hg :execute s:HgExecute(<f-args>)")
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158
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159 " }}}
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160
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161 " HgStatus {{{
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162
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163 function! s:HgStatus() abort
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164 echo s:hg_repo().RunCommand('status')
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165 endfunction
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166
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167 call s:AddMainCommand("HgStatus :execute s:HgStatus()")
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168
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169 " }}}
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170
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171 " Hgcd, Hglcd {{{
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172
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173 function! s:ListRepoDirs(ArgLead, CmdLine, CursorPos) abort
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174 let l:root_dir = s:hg_repo().root_dir
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175 if (a:ArgLead =~# '^/')
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176 let l:root_dir = s:stripslash(l:root_dir)
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177 endif
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178 let l:matches = split(glob(l:root_dir . a:ArgLead . '*'), '\n')
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179 let l:strip_len = len(l:root_dir)
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180 call map(l:matches, 'v:val[l:strip_len : -1] . "/"')
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181 return l:matches
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182 endfunction
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183
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184 call s:AddMainCommand("-bang -nargs=? -complete=customlist,s:ListRepoDirs Hgcd :cd<bang> `=s:hg_repo().GetFullPath(<q-args>)`")
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185 call s:AddMainCommand("-bang -nargs=? -complete=customlist,s:ListRepoDirs Hglcd :lcd<bang> `=s:hg_repo().GetFullPath(<q-args>)`")
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186
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187 " }}}
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188
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189 " Autoload Functions {{{
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190
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191 function! lawrencium#statusline(...)
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192 if !exists('b:mercurial_dir')
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193 return ''
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194 endif
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195 let l:summary = s:hg_repo().RunCommand('summary')
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196 let l:parent_rev = matchstr(l:summary, 'parent\: \d+\:[0-9a-f]+')
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197 let l:branch = matchstr(l:summary, 'branch\: [\d\w\-_\.]+')
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198 return l:branch . ', ' . l:parent_rev
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199 endfunction
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200
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201 " }}}
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202