Load gtags with given gtags root

Question

I have a log file(in say /home/logs) with file names and line numbers. I want to look up the files in a project rooted at say /x/projects/project12/ . How do use gtags to look up files while log file is opened in vim ? One clumsy way is to copy log file in project directory.

Is there a better way, something like while log file is opened in vim I set gtagsroot to /x/projects/project12/ and all lookups happen in that project ?

EDIT: gtags were created by gtags command in project root.

Answer 1

The gtags-scope.vim plugin uses global -pq to find the location of the GTAGS file. The easiest solution would be to set your current working directory to your project directory via :cd ~/project.

But there is a better way! Just use gf. You can add your project root to the 'path' option and all gf, <c-w>f, :find, and friends will just work. Do this doing the following:

:set path+=~/project

or if you just want to adjust the 'path' option for just that buffer do:

:setlocal path+=~/project

For more help see:

:h 'path
:h gf
:h :cd