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annotate autoload/gutentags.vim @ 88:073e63cc0456

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Add `gutentags_enabled_user_func` callback.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 24 Nov 2015 21:47:26 -0800
parents afe113047204
children 8bf96f9f649c
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41
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
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1 " gutentags.vim - Automatic ctags management for Vim
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2
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3 " Utilities {{{
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4
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5 " Throw an exception message.
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6 function! gutentags#throw(message)
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7 let v:errmsg = "gutentags: " . a:message
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8 throw v:errmsg
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9 endfunction
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10
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11 " Prints a message if debug tracing is enabled.
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12 function! gutentags#trace(message, ...)
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13 if g:gutentags_trace || (a:0 && a:1)
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14 let l:message = "gutentags: " . a:message
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15 echom l:message
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16 endif
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17 endfunction
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18
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19 " Strips the ending slash in a path.
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20 function! gutentags#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 " Normalizes the slashes in a path.
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25 function! gutentags#normalizepath(path)
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26 if exists('+shellslash') && &shellslash
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27 return substitute(a:path, '\v/', '\\', 'g')
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28 elseif has('win32')
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29 return substitute(a:path, '\v/', '\\', 'g')
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30 else
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31 return a:path
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32 endif
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33 endfunction
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34
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35 " Shell-slashes the path (opposite of `normalizepath`).
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36 function! gutentags#shellslash(path)
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37 if exists('+shellslash') && !&shellslash
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38 return substitute(a:path, '\v\\', '/', 'g')
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39 else
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40 return a:path
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41 endif
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42 endfunction
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43
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44 " Gets a file path in the correct `plat` folder.
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45 function! gutentags#get_plat_file(filename) abort
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46 return g:gutentags_plat_dir . a:filename . g:gutentags_script_ext
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47 endfunction
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48
75
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49 " Gets a file path in the resource folder.
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50 function! gutentags#get_res_file(filename) abort
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51 return g:gutentags_res_dir . a:filename
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52 endfunction
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53
41
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54 " }}}
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55
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56 " Gutentags Setup {{{
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57
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58 let s:known_files = []
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59
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60 " Finds the first directory with a project marker by walking up from the given
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61 " file path.
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62 function! gutentags#get_project_root(path) abort
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63 let l:path = gutentags#stripslash(a:path)
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64 let l:previous_path = ""
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65 let l:markers = g:gutentags_project_root[:]
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66 if exists('g:ctrlp_root_markers')
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67 let l:markers += g:ctrlp_root_markers
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68 endif
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69 while l:path != l:previous_path
80
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70 for root in l:markers
41
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71 if getftype(l:path . '/' . root) != ""
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72 let l:proj_dir = simplify(fnamemodify(l:path, ':p'))
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73 return gutentags#stripslash(l:proj_dir)
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74 endif
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75 endfor
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76 let l:previous_path = l:path
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77 let l:path = fnamemodify(l:path, ':h')
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78 endwhile
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79 call gutentags#throw("Can't figure out what tag file to use for: " . a:path)
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80 endfunction
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81
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82 " Generate a path for a given filename in the cache directory.
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83 function! gutentags#get_cachefile(root_dir, filename) abort
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84 let l:tag_path = gutentags#stripslash(a:root_dir) . '/' . a:filename
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85 if g:gutentags_cache_dir != ""
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86 " Put the tag file in the cache dir instead of inside the
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87 " projet root.
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88 let l:tag_path = g:gutentags_cache_dir . '/' .
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89 \tr(l:tag_path, '\/:', '---')
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90 let l:tag_path = substitute(l:tag_path, '/\-', '/', '')
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91 endif
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92 let l:tag_path = gutentags#normalizepath(l:tag_path)
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93 return l:tag_path
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94 endfunction
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95
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96 " Setup gutentags for the current buffer.
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97 function! gutentags#setup_gutentags() abort
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98 if exists('b:gutentags_files') && !g:gutentags_debug
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99 " This buffer already has gutentags support.
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100 return
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101 endif
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102
63
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103 " Don't setup gutentags for anything that's not a normal buffer
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104 " (so don't do anything for help buffers and quickfix windows and
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105 " other such things)
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106 if &buftype != ''
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107 return
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108 endif
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109
88
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110 " Let the user specify custom ways to disable Gutentags.
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111 if g:gutentags_enabled_user_func != '' &&
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112 \!call(g:gutentags_enabled_user_func, [expand('%:p')])
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113 call gutentags#trace("Ignoring '" . bufname('%') . "' because of " .
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114 \"custom user function.")
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115 return
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116 endif
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117
41
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118 " Try and find what tags file we should manage.
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119 call gutentags#trace("Scanning buffer '" . bufname('%') . "' for gutentags setup...")
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120 try
85
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121 let l:buf_dir = expand('%:p:h', 1)
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122 if g:gutentags_resolve_symlinks
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123 let l:buf_dir = fnamemodify(resolve(expand('%:p', 1)), ':p:h')
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124 endif
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125 let b:gutentags_root = gutentags#get_project_root(l:buf_dir)
47
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126 if filereadable(b:gutentags_root . '/.notags')
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127 call gutentags#trace("'notags' file found... no gutentags support.")
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128 return
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129 endif
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130
41
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131 let b:gutentags_files = {}
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132 for module in g:gutentags_modules
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133 call call("gutentags#".module."#init", [b:gutentags_root])
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134 endfor
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135 catch /^gutentags\:/
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136 call gutentags#trace("Can't figure out what tag file to use... no gutentags support.")
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137 return
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138 endtry
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139
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140 " We know what tags file to manage! Now set things up.
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141 call gutentags#trace("Setting gutentags for buffer '" . bufname('%'))
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142
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143 " Autocommands for updating the tags on save.
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144 let l:bn = bufnr('%')
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145 execute 'augroup gutentags_buffer_' . l:bn
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146 execute ' autocmd!'
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147 execute ' autocmd BufWritePost <buffer=' . l:bn . '> call s:write_triggered_update_tags()'
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148 execute 'augroup end'
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149
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150 " Miscellaneous commands.
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151 command! -buffer -bang GutentagsUpdate :call s:manual_update_tags(<bang>0)
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152
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153 " Add these tags files to the known tags files.
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154 for module in keys(b:gutentags_files)
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155 let l:tagfile = b:gutentags_files[module]
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156 let l:found = index(s:known_files, l:tagfile)
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157 if l:found < 0
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158 call add(s:known_files, l:tagfile)
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159
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160 " Generate this new file depending on settings and stuff.
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161 if g:gutentags_enabled
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162 if g:gutentags_generate_on_missing && !filereadable(l:tagfile)
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163 call gutentags#trace("Generating missing tags file: " . l:tagfile)
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164 call s:update_tags(module, 1, 1)
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165 elseif g:gutentags_generate_on_new
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166 call gutentags#trace("Generating tags file: " . l:tagfile)
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167 call s:update_tags(module, 1, 1)
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168 endif
41
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169 endif
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170 endif
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171 endfor
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172 endfunction
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173
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174 " }}}
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175
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176 " Tags File Management {{{
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177
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178 " List of queued-up jobs, and in-progress jobs, per module.
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179 let s:update_queue = {}
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180 let s:maybe_in_progress = {}
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181 for module in g:gutentags_modules
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182 let s:update_queue[module] = []
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183 let s:maybe_in_progress[module] = {}
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184 endfor
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185
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186 " Make a given file known as being currently generated or updated.
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187 function! gutentags#add_progress(module, file) abort
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188 let s:maybe_in_progress[a:module][a:file] = localtime()
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189 endfunction
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190
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191 " Get how to execute an external command depending on debug settings.
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192 function! gutentags#get_execute_cmd() abort
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193 if has('win32')
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194 let l:cmd = '!start '
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195 if g:gutentags_background_update
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196 let l:cmd .= '/b '
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197 endif
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198 return l:cmd
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199 else
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200 return '!'
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201 endif
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202 endfunction
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203
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204 " Get the suffix for how to execute an external command.
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205 function! gutentags#get_execute_cmd_suffix() abort
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206 if has('win32')
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207 return ''
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208 else
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209 return ' &'
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210 endif
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211 endfunction
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212
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213 " (Re)Generate the tags file for the current buffer's file.
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214 function! s:manual_update_tags(bang) abort
41
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215 for module in g:gutentags_modules
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216 call s:update_tags(module, a:bang, 0)
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217 endfor
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218 endfunction
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219
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220 " (Re)Generate the tags file for a buffer that just go saved.
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221 function! s:write_triggered_update_tags() abort
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222 if g:gutentags_enabled && g:gutentags_generate_on_write
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223 for module in g:gutentags_modules
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224 call s:update_tags(module, 0, 2)
41
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225 endfor
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226 endif
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227 endfunction
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228
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229 " Update the tags file for the current buffer's file.
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230 " write_mode:
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231 " 0: update the tags file if it exists, generate it otherwise.
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232 " 1: always generate (overwrite) the tags file.
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233 "
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234 " queue_mode:
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235 " 0: if an update is already in progress, report it and abort.
83
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236 " 1: if an update is already in progress, abort silently.
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237 " 2: if an update is already in progress, queue another one.
59
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238 function! s:update_tags(module, write_mode, queue_mode) abort
41
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239 " Figure out where to save.
59
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diff changeset
240 let l:tags_file = b:gutentags_files[a:module]
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diff changeset
241 let l:proj_dir = b:gutentags_root
41
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242
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243 " Check that there's not already an update in progress.
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244 let l:lock_file = l:tags_file . '.lock'
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245 if filereadable(l:lock_file)
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diff changeset
246 if a:queue_mode == 2
41
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247 let l:idx = index(s:update_queue[a:module], l:tags_file)
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248 if l:idx < 0
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249 call add(s:update_queue[a:module], l:tags_file)
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250 endif
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251 call gutentags#trace("Tag file '" . l:tags_file .
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252 \"' is already being updated. Queuing it up...")
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253 elseif a:queue_mode == 1
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254 call gutentags#trace("Tag file '" . l:tags_file .
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255 \"' is already being updated. Skipping...")
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parents: 82
diff changeset
256 elseif a:queue_mode == 0
41
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
257 echom "gutentags: The tags file is already being updated, " .
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
258 \"please try again later."
83
e7e392be4141 Only show message about an existing update job for user-initiated actions.
Ludovic Chabant <ludovic@chabant.com>
parents: 82
diff changeset
259 else
e7e392be4141 Only show message about an existing update job for user-initiated actions.
Ludovic Chabant <ludovic@chabant.com>
parents: 82
diff changeset
260 call gutentags#throw("Unknown queue mode: " . a:queue_mode)
41
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
261 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
262 return
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
263 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
264
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
265 " Switch to the project root to make the command line smaller, and make
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
266 " it possible to get the relative path of the filename to parse if we're
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
267 " doing an incremental update.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
268 let l:prev_cwd = getcwd()
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
269 execute "chdir " . fnameescape(l:proj_dir)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
270 try
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
271 call call("gutentags#".a:module."#generate",
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
272 \[l:proj_dir, l:tags_file, a:write_mode])
84
96bfe5c37f37 Error and abort if we'll be overwriting a non-ctags file.
Ludovic Chabant <ludovic@chabant.com>
parents: 83
diff changeset
273 catch /^gutentags\:/
96bfe5c37f37 Error and abort if we'll be overwriting a non-ctags file.
Ludovic Chabant <ludovic@chabant.com>
parents: 83
diff changeset
274 echom "Error while generating ".a:module." file:"
96bfe5c37f37 Error and abort if we'll be overwriting a non-ctags file.
Ludovic Chabant <ludovic@chabant.com>
parents: 83
diff changeset
275 echom v:exception
41
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
276 finally
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
277 " Restore the current directory...
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
278 execute "chdir " . fnameescape(l:prev_cwd)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
279 endtry
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
280 endfunction
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
281
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
282 " }}}
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
283
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
284 " Utility Functions {{{
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Ludovic Chabant <ludovic@chabant.com>
parents:
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285
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
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286 function! gutentags#rescan(...)
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
287 if exists('b:gutentags_files')
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Ludovic Chabant <ludovic@chabant.com>
parents:
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288 unlet b:gutentags_files
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Ludovic Chabant <ludovic@chabant.com>
parents:
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289 endif
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Ludovic Chabant <ludovic@chabant.com>
parents:
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290 if a:0 && a:1
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Ludovic Chabant <ludovic@chabant.com>
parents:
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291 let l:trace_backup = g:gutentags_trace
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
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292 let l:gutentags_trace = 1
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
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293 endif
82
a837021a2388 Fix broken call debug function.
Ludovic Chabant <ludovic@chabant.com>
parents: 80
diff changeset
294 call gutentags#setup_gutentags()
41
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
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295 if a:0 && a:1
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
296 let g:gutentags_trace = l:trace_backup
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
297 endif
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Ludovic Chabant <ludovic@chabant.com>
parents:
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298 endfunction
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
299
46
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
300 function! gutentags#delete_lock_files() abort
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
301 if exists('b:gutentags_files')
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
302 for tagfile in values(b:gutentags_files)
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
303 silent call delete(tagfile.'.lock')
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
304 endfor
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
305 endif
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
306 endfunction
c0f56e4d52bd Make a bunch of advanced commands opt-in only.
Ludovic Chabant <ludovic@chabant.com>
parents: 41
diff changeset
307
41
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
308 function! gutentags#toggletrace(...)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
309 let g:gutentags_trace = !g:gutentags_trace
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
310 if a:0 > 0
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
311 let g:gutentags_trace = a:1
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
312 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
313 if g:gutentags_trace
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
314 echom "gutentags: Tracing is enabled."
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
315 else
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
316 echom "gutentags: Tracing is disabled."
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
317 endif
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
318 echom ""
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
319 endfunction
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
320
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
321 function! gutentags#fake(...)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
322 let g:gutentags_fake = !g:gutentags_fake
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
323 if a:0 > 0
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
324 let g:gutentags_fake = a:1
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
325 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
326 if g:gutentags_fake
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
327 echom "gutentags: Now faking gutentags."
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
328 else
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
329 echom "gutentags: Now running gutentags for real."
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
330 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
331 echom ""
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
332 endfunction
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
333
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
334 function! gutentags#inprogress()
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
335 echom "gutentags: generations in progress:"
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
336 for mip in keys(s:maybe_in_progress)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
337 echom mip
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
338 endfor
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
339 echom ""
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
340 endfunction
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
341
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
342 " }}}
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
343
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
344 " Statusline Functions {{{
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
345
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
346 " Prints whether a tag file is being generated right now for the current
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
347 " buffer in the status line.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
348 "
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
349 " Arguments can be passed:
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
350 " - args 1 and 2 are the prefix and suffix, respectively, of whatever output,
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
351 " if any, is going to be produced.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
352 " (defaults to empty strings)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
353 " - arg 3 is the text to be shown if tags are currently being generated.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
354 " (defaults to 'TAGS')
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
355
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
356 function! gutentags#statusline(...) abort
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
357 if !exists('b:gutentags_files')
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
358 " This buffer doesn't have gutentags.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
359 return ''
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
360 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
361
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
362 " Figure out what the user is customizing.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
363 let l:gen_msg = 'TAGS'
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
364 if a:0 > 0
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
365 let l:gen_msg = a:1
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
366 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
367
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
368 " To make this function as fast as possible, we first check whether the
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
369 " current buffer's tags file is 'maybe' being generated. This provides a
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
370 " nice and quick bail out for 99.9% of cases before we need to this the
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
371 " file-system to check the lock file.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
372 let l:modules_in_progress = []
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
373 for module in keys(b:gutentags_files)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
374 let l:abs_tag_file = fnamemodify(b:gutentags_files[module], ':p')
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
375 let l:progress_queue = s:maybe_in_progress[module]
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
376 let l:timestamp = get(l:progress_queue, l:abs_tag_file)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
377 if l:timestamp == 0
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
378 return ''
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
379 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
380 " It's maybe generating! Check if the lock file is still there... but
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
381 " don't do it too soon after the script was originally launched, because
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
382 " there can be a race condition where we get here just before the script
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
383 " had a chance to write the lock file.
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
384 if (localtime() - l:timestamp) > 1 &&
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
385 \!filereadable(l:abs_tag_file . '.lock')
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
386 call remove(l:progress_queue, l:abs_tag_file)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
387 return ''
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
388 endif
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
389 call add(l:modules_in_progress, module)
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
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390 endfor
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391
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392 " It's still there! So probably `ctags` is still running...
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393 " (although there's a chance it crashed, or the script had a problem, and
99328cb71e75 Refactor Gutentags so functionality can be implemented in "modules".
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394 " the lock file has been left behind... we could try and run some
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395 " additional checks here to see if it's legitimately running, and
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396 " otherwise delete the lock file... maybe in the future...)
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397 if len(g:gutentags_modules) > 1
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398 let l:gen_msg .= '['.join(l:modules_in_progress, ',').']'
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399 endif
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400 return l:gen_msg
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401 endfunction
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402
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403 " }}}
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404