生成数据库的脚本
widon@widon-laptop:~$ cat /usr/local/bin/gt.sh
find . -name “*.[ch]” > gtags.files
gtags

.vimrc里面添加
function! UpdateGtags(f)
let dir = fnamemodify(a:f, ‘:p:h’)
” exe ‘silent !cd ‘ . dir . ‘ && global -u &> /dev/null &’
exec ‘cd ‘ . dir
exec ‘silent !global -u &’
exec ‘cd -’
endfunction

autocmd BufWritePost *.[ch] call UpdateGtags(expand(”))

let g:GtagsCscope_Auto_Load = 1
let g:GtagsCscope_Auto_Map = 1
let g:GtagsCscope_Absolute_Path = 1

这样就可以完全替代cscope了。。

function! GetWorkspaceFileName()
let s:current_dir=getcwd()
let s:root_dir=’/’
let l:workspace_file_full_path=”/”
while s:current_dir != s:root_dir
let s:tmp_string=s:current_dir . “/” . s:WorkspaceFileName
if filereadable(s:tmp_string)
let l:workspace_file_full_path=s:tmp_string
break
endif
let s:index=strridx(s:current_dir, “/”)
” if s:current_dir==”/home”, s:index will == 0, but strpart() needs
” length == at least 1 to get ‘/’
if s:index == 0
let s:index=1
endif
” cut string, remove the characters after last ‘/’
let s:current_dir=strpart(s:current_dir, 0, s:index)
endwhile
“return the full path of workspace file if succeeds, otherwise ‘/’
return l:workspace_file_full_path
endfunction

” get full path of workspace file
let s:workspace_file_full_path=GetWorkspaceFileName()

if filereadable(s:workspace_file_full_path)
exec ‘source’ . s:workspace_file_full_path
endif
这样，每次执行vim的时候，会自动寻找并加载项目顶层的workspace.vim